add: (3x^2-5x+6)+(-4x^2-8x+9)
A. -x^2-13x+15
B. 7x^2-13x+15
C. -x^2-13x+3
D. 7x^2+3x-3

Answers

Answer 1

Answer:

A. -x^2-13x+15

Step-by-step explanation:

-4x^2 + 3x^2 = -x^2

-8x + -5x = -13x

6 + 9 = 15

-x^2-13x+15


Related Questions

Simplify - 10x -4 +3x​

Answers

Combine the like terms -10x and 3x to get -7x.

The answer would be -7x - 4

[tex]\text{Hey there!}[/tex]

[tex]\mathsf{Simply: -10x - 4+3x}[/tex]

[tex]\mathsf{First\ group\ your\ like\ terms}[/tex]

[tex]\mathsf{Like\ terms:-10x\ \&\ 3x}[/tex]

[tex]\mathsf{-10x+3x=-7}[/tex]

[tex]\mathsf{New\ equation: -7 x- 4}[/tex]

[tex]\boxed{\boxed{\bf{Answer:\mathsf{-7x-4}}}}\checkmark[/tex]

[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{LoveYourselfFirst:)}[/tex]

Which expressions are equal to 9/41. If u answer I’ll give you best brainliest

Answers

Option a: Sin F equal to [tex]\frac{9}{41}[/tex]

Option e: Cos G equal to [tex]\frac{9}{41}[/tex]

Explanation:

Option a : Sin F

Let us determine the value of Sin F from the right triangle.

The formula for Sin F is [tex]\sin F=\frac{o p p}{h y p}[/tex]

Thus, substituting the values, we get,

[tex]\begin{aligned}\sin F &=\frac{o p p}{h y p} \\&=\frac{H G}{F G} \\&=\frac{9}{41}\end{aligned}[/tex]

Hence, [tex]\begin{aligned}\sin F &=\frac{9}{41}\end{aligned}[/tex] which is equal to [tex]\frac{9}{41}[/tex]

Hence, Option a is the correct answer.

Option b : Cos F

The formula to determine the value of Cos F is [tex]\cos F=\frac{a d j}{h y p}[/tex]

Thus, substituting the values, we get,

[tex]\begin{aligned}\cos F &=\frac{a d j}{h y p} \\&=\frac{F H}{F G} \\&=\frac{40}{41}\end{aligned}[/tex]

Hence, [tex]\begin{aligned}\cos F &=\frac{40}{41}\end{aligned}[/tex] which is not equal to [tex]\frac{9}{41}[/tex]

Hence, Option b is not the correct answer.

Option c: tan F

The formula to determine the value of tan F is [tex]\tan F=\frac{o p p}{a d j}[/tex]

Thus, substituting the values, we get,

[tex]\begin{aligned}\tan F &=\frac{o p p}{a d j} \\&=\frac{F H}{H G} \\&=\frac{9}{40}\end{aligned}[/tex]

Hence, [tex]\begin{aligned}\tan F &=\frac{9}{40}\end{aligned}[/tex] which is not equal to [tex]\frac{9}{41}[/tex]

Hence, Option c is not the correct answer.

Option d : Sin G

The formula to determine the value of Sin G is [tex]\sin G=\frac{o p p}{h y p}[/tex]

Thus, substituting the values, we get,

[tex]\begin{aligned}\sin G &=\frac{o p p}{h y p} \\&=\frac{FH }{F G} \\&=\frac{40}{41}\end{aligned}[/tex]

Hence, [tex]\begin{aligned}\sin G &=\frac{40}{41}\end{aligned}[/tex] which is not equal to [tex]\frac{9}{41}[/tex]

Hence, Option d is not the correct answer.

Option e : Cos G

The formula to determine the value of Cos G is [tex]\cos G=\frac{a d j}{h y p}[/tex]

Thus, substituting the values, we get,

[tex]\begin{aligned}\cos G &=\frac{a d j}{h y p} \\&=\frac{HG}{F G} \\&=\frac{9}{41}\end{aligned}[/tex]

Hence, [tex]\begin{aligned}\cos F &=\frac{40}{41}\end{aligned}[/tex] which is equal to [tex]\frac{9}{41}[/tex]

Hence, Option e is the correct answer.

Option f : tan G

The formula to determine the value of tan G is [tex]\tan G=\frac{o p p}{a d j}[/tex]

Thus, substituting the values, we get,

[tex]\begin{aligned}\tan G &=\frac{o p p}{a d j} \\&=\frac{F H}{H G} \\&=\frac{40}{9}\end{aligned}[/tex]

Hence, [tex]\begin{aligned}\tan G &=\frac{40}{9}\end{aligned}[/tex] which is not equal to [tex]\frac{9}{41}[/tex]

Hence, Option f is not the correct answer.

Thus, the expression which is equal to [tex]\frac{9}{41}[/tex] is Sin F and Cos G

. COUPONS Kendra used 35 cents more
in coupons at the store than Leanne.
Leanne used 75 cents less than Becca,
who used 50 cents more than Jaclyn.
Jaclyn used 40 cents in coupons. What
was the value of the coupons Kendra
used?​

Answers

Answer:

Kendra used 50 cents

Step-by-step explanation:

Jaclyn used 40 cents. Becca used 50 more than Jaclyn (90). Leanna used 75 cents less than Becca (15). Kendra used 35 cents more than Becca (50).

J=40

B=90

L=15

K=50

Hope this helps! c:

Using the given information, the value of the coupons Kendra used IS 50 cents.

Substitution method: Multiple equations can be solved using the substitution method, where we substitute the value of one variable in different equations to calculate the value of other variables.

Let,

Cents used by Kendra in coupons= K

Cents used by  Leanne in coupons= L

Cents used by  Becca in coupons= B

Cents used by  Jaclyn in coupons= J

Using the given information,

Kendra used 35 cents more in coupons at the store than Leanne,

K=L+35......................................................................................(1)

Leanne used 75 cents less than Becca,

L+75=B......................................................................................(2)

Becca used 50 cents more than Jaclyn,

B=J+50......................................................................................(3)

Jaclyn used 40 cents in coupons,

J=40

Substituting J=40 in (3),

B=90

Substituting B=90 in (2),

L=15

Substituting L=15 in (1),

K=50

Thus, Kendra used 50 cents in coupons.

Learn more about equations, here:

https://brainly.com/question/19297665

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PLEASE HELP WITH THESE TWO QUESTIONSSS 1. Which value is equivalent to sin20∘?


2. What is the measurement of PQ?

Answers

Answer:

a) [tex]\cos(70\degree)[/tex]

b) 12.72 units

Step-by-step explanation:

Recall that the sine and cosine are completed functions.

This means that:  [tex]\sin(x)=\cos(90-x)[/tex]

[tex]\sin(20\degree)=\cos(90-20)[/tex]

[tex]\sin(20\degree)=\cos(70\degree)[/tex]

Recall that: sine ratio is opposite/hypotenuse

[tex]\sin 58=\frac{|PQ|}{15}[/tex]

This implies that:

[tex]|PQ|=15\sin 58[/tex]

[tex]|PQ|=15(0.848)[/tex]

[tex]|PQ|=12.72[/tex]

m x 12 = 12 x m
What property is this?

Answers

Answer:

[tex]It \: is \: called \: commutative \: property[/tex]

nanci has a large fish tank that contains fish. The ratio of orange fish to black fish is 5:8. If nanci has a total of 20 orange fish, then how many black fish are inn the tank?

Answers

There are 32 black fish in the tank

Step-by-step explanation:

Nanci has a large fish tank that contains fish

The ratio of orange fish to black fish is 5 : 8Nanci has a total of 20 orange fish

We need to find how many black fish in the tank

∵ The ratio between the orange fish to the black fish is 5 : 8

∵ She has 20 orange fish

By using the ratio method

→  orange  :  black

→  5            :  8

→  20          :  x

By using cross multiplication

∵ 5 × x = 20 × 8

∴ 5 x = 160

- Divide both sides by 5

∴ x = 32

∵ x represents the number of the black fish

∴ The number of the black fish is 32

There are 32 black fish in the tank

Learn more:

You can learn more about the ratio in brainly.com/question/11286417

#LearnwithBrainly

Angle A and Angle B are supplementary angles. If
m angle A = (2x + 26)° and m angle B = (x + 25)', then find the measure
of Angle B.

Answers

Answer:

12 Degrees

Step-by-step explanation:

angle A and angle B are supplementary angles.

angle A is 14 times as large as angle B.

Let angle A be x and let angle B be y.

then we have x+y=180

 

x=14y

14y+y=180

15y=180

y=12

x=168

Angle A is 168 degrees and angle B is 12 degrees.

3h - j when h = 8 and j = 11

Answers

Answer#
13
Explanation#
Multiply 3 by 8 and, then - it with 11
3(8)-(11)=13
3X8=24
24-11=13

Your new place needs a 12 ft by 18 ft rug. You notice that these sides are 50% longer than the rug from your old place. What were the dimensions of the old rug

Answers

Answer:

The dimensions of the old rug are 8 ft by 12 ft

Step-by-step explanation:

Let

x ----> the length of the old rug

y ----> the width of the old rug

we know that

[tex]100\%+50\%=150\%=150\100=1.5[/tex]

so

The dimensions of the old rug multiplied by the factor 1.5 must be equal to the dimensions of the new rug

so

[tex]1.5x=12\\x=8\ ft[/tex]

[tex]1.5y=18\\y=12\ ft[/tex]

therefore

The dimensions of the old rug are 8 ft by 12 ft

Hugo and Koby are measuring the heights of plants in biology class.

Use the drop-down menus to complete the statements about the measured heights and the actual heights of the plants.

Answers

The answers are shorter, higher, 2cm, 15cm, 20% and 15%.

Step-by-step explanation:

Step 1; From the given data Hugo measured his plant higher than its original height. Hugo measured his plant as 12 cm while it was actually 10 cm. So Hugo's measurement was off by 2cm. Hugo's percent error is given by dividing the difference in values by the actual value.= multiplied by 100.

% error = (difference in values / actual value) × 100

Hugo's % error = (12 - 10)/ 10 × 100 = 2/10 × 100 = 20%.

Step 2; Koby measured his plant lower than his plant's original height. He measured it to be 85 cm while it was 100 cm tall. So Koby's measurement was off by 15cm. The percent error is calculated in the same way.

% error = (difference in values / actual value) × 100

Koby's % error = (100 - 85)/ 100 × 100 = 15/100 × 100 = 15%.

Step 3; Hugo had a percent error of 20% while Koby has a percent error of 15%. So Hugo had a higher percent error of the two.

Answer:

Step-by-step explanation:

The radius of a circle is 15. Using π, which equation expresses the ratio of the circumference to the diameter of a circle?
A: C=15πr

B: C15=π

C: C=r30π

D: C30=π

Answers

Answer:

The equation which expresses the ratio of the circumference to the diameter of a circle is  [tex]\frac{C}{30}=\pi[/tex] ⇒ D

Step-by-step explanation:

π is the ratio between the circumference of the circle and the length of its diameter

[tex]\frac{C}{d}=\pi[/tex] , where

C is the circumference of the circled is the diameter of the circle

∵ The circumference of the circle is C

∵ The radius of the circle is 15 units

∴ r = 15 units

- Find the diameter of the circle

∵ The diameter of the circle d = 2 r

∴ d = 2(15) = 30 units

∴ The diameter of the circle is 30 units

∵ [tex]\frac{C}{d}=\pi[/tex]

∵ d = 30 units

∴ [tex]\frac{C}{30}=\pi[/tex]

The equation which expresses the ratio of the circumference to the diameter of a circle is  [tex]\frac{C}{30}=\pi[/tex]

What is the additive inverse of 6x^2+x-2

Answers

Answer:

https://brainly.com/question/11963602

Step-by-step explanation:

f(x) = -2x2 – 7x + 4
What’s the vertex?

Answers

Answer:

( - 7/4, 81/8 )

Step-by-step explanation:

Is the slope of 5,0 and 8,4 positive,negative, zero or undefined?

Answers

slope= y2-y1/x2-x1
4-0/8-5
4/3=1.33
the slope is positive

It took Ivan 7 1/2 hours to drive 412.5 miles at a constant speed. How fast was he driving? Show how you know.

Answers

Answer:

55

Step-by-step explanation:

412.5 / 7.5 =55

The speed of the driving will be 55 miles/hr. Speed is represented as the pace of change of the distance or the height attained.

What is speed ?

Speed is defined as the rate of change of the distance or the height attained. it is a time-based quantity. it is denoted by u for the initial speed while v for the final speed. its SI unit is m/sec.

The given data in the problem is;

The time taken is,t=7.5 hours.

The distance travelled is,d=412.5 miles

v is the speed of driving =?

The formula for the distance is;

d=v×t

v=d/t

Substitute the given values;

v=412.5/7.5

v=55 miles/hr

Hence, the velocity of the driving will be 55 miles/hr.

To learn more about the speed, refer to the link;

https://brainly.com/question/7359669

#SPJ2

4/6 + 1/3 solve this plez

Answers

the answer is one i believe. hope this isn't too late

Yo sup??

[tex]4/6=2*2/2*3\\=2/3\\\\4/6+1/3\\=2/3+1/3\\=2+1/3\\=3/3\\=1\\[/tex]

Hope this helps

Go math book unit 5 page 310 answer key

Answers

Step-by-step explanation:310 x 5=1550

Is 48 a solution to 2y = 24

Answers

Answer:

No

Step-by-step explanation:

2y = 24

y = 24/2

y = 12

so the answer is incorrect

Answer:

False

Step-by-step explanation:

The correct answer is 12

Ivanka has a ribbon that is 4.5 inches long. Michal has a ribbon that is 3 1/10 times the length of ivanka’s ribbon. How long is michal’s ribbon? Express the answer to the nearest hundredth

Answers

Answer:

6.30

Step-by-step explanation:

Ivanka’s ribbon = 4.5 inches long

Michal’s ribbon is 3 1/2 times ivanka’s

Therefore,

Michal’s = 3 1/2 x 4.5

= 7/5 x 4.5

= 31.5/5

= 6.3 = 6.30 to the nearest hundredth

Jarret walks his puppy outside every day for 30 minutes. Angela walked her puppy every day for 90 minutes. Find the number of minutes that each puppy was walked for 1, 2, 3, and 4 days. Then graph the results as ordered pairs. How many more minutes does Angela spend walking her puppy over 2 days compared to Jarret walking his puppy over 2 days?

Answers

Answer:

Read the answers below, including the graph.

Step-by-step explanation:

1. Let's find the number of minutes that each puppy was walked for 1, 2, 3, and 4 days.

                        Day 1    Day 2    Day 3    Day 4

Angela               90        180        270         360

Jarret                 30          60          90          120

Ordered pairs for Angela's puppy: (1,90); (2,180); (3,270); (4,360)

Ordered pairs for Jarret's puppy: (1,30); (2,60); (3,90); (4,120)

2. How many more minutes does Angela spend walking her puppy over 2 days compared to Jarret walking his puppy over 2 days?

180 - 60 = 120

Angela spend walking her puppy 120 more minutes over 2 days compared to Jarret



Triangle KNM is isosceles, where angle N is the vertex.

Isosceles triangle K N M is shown. N L is a perpendicular bisector of angle K N M. Angle K N L is (5 x + 10) degrees and angle L N M is (6 x minus 1) degrees.

What is the measure of angle K?
11º
25º
50º
65º

Answers

Answer:

25°

Step-by-step explanation:

In isosceles triangle KNM, NL is a perpendicular bisector of angle KNM.

This means

[tex]m\angle KNL=m\angle LNM[/tex]

Since

[tex]m\angle KNL=(5x+10)^{\circ}\\ \\m\angle LNM=(6x-1)^{\circ},[/tex]

you have

[tex]5x+10=6x-1\\ \\5x-6x=-1-10\\ \\-x=-11\\ \\x=11[/tex]

No, find the measure of angles KNL and LNM:

[tex]m\angle KNL=(5\cdot 11+10)^{\circ}=65^{\circ}\\ \\m\angle LNM=(6\cdot 11-1)^{\circ}=65^{\circ}[/tex]

and the measure of angle KNM is

[tex]m\angle KNM=m\angle KNL+m\angle LNM=65^{\circ}+65^{\circ}=130^{\circ}[/tex]

Angles adjacent to the base of isosceles triangle are congruent. The sum of the measures of all interior angles is 180°, then

[tex]m\angle K=\dfrac{1}{2}(180^{\circ}-130^{\circ})=25^{\circ}[/tex]

Answer:

25 Degrees

Step-by-step explanation:

it’s solve system by elimination!!! plz help asap

Answers

Answer:

look at the picture shown

Jackson buys a grape snow cone on a hot day. By the time he eats all the "snow" off the top, the paper cone is filled with 27\pi27π27, pi cm^3

3

cubed of melted purple liquid. The radius of the cone is 333 cm.

Answers

Question:

Jackson buys a grape snow cone on a hot day. By the time he eats all the "snow" off the top, the paper cone is filled with 27\pi27π27, pi cm^3 3 start superscript, 3, end superscript of melted purple liquid. The radius of the cone is 333 cm. What is the height of the cone?

Answer:

The height of the cone is [tex]9 \ cm[/tex]

Explanation:

It is given that the radius of the cone is [tex]3 \ cm[/tex]

The volume of the cone is [tex]27\pi[/tex]

The height of the cone can be determine using the formula,  

[tex]$V=\frac{1}{3} \pi r^{2} h$[/tex]

Substituting the values [tex]V=27 \pi[/tex] and [tex]r=3[/tex], we get,

[tex]$27 \pi=\frac{1}{3} \pi(3)^{2} h$[/tex]

Multiplying both sides by 3, we have,

[tex]$81 \pi= 9\pi h$[/tex]

Dividing both sides by [tex]$9 \pi$[/tex], we have,

[tex]9=h[/tex]

Thus, the height of the cone is [tex]9 \ cm[/tex]

x+3y=6
x-3y = 12
Using elimination

Answers

Answer:

look at the picture shown

Answer:

x = 9 ; y = -1

Step-by-step explanation:

because one equation is 3y and the second is -3y they will cancel out (eliminate) so the term y will be gone and you combine (add) the rest of the terms and end up with

[tex]2x=18[/tex]

then divide both sides by 2 to get: x = 9

plug in the value of x into one of the original problems

[tex]9+3y=6[/tex]

and solve for y

[tex]3y=-3\\y=-1[/tex]

if you plug in the values of x and y into the equations it should be true

HELP PLEASE QUICK!!!

Answers

Answer

-6 -12

Step-by-step explanation:

This quarter circle has a radius of 7 centimeters. What is the area of this figure? Use 3.14 for pi.
Enter your answer as a decimal in the box. Round your answer to the nearest hundredth.

|_____|cm²

Answers

Answer:

[tex]area \: of \: quarter \: circle \\ = \frac{ \theta}{360 \degree} \times \pi \: {r}^{2} \\ \\ = \frac{90 \degree}{360 \degree} \times 3.14 \times \: {7}^{2} \\ \\ = \frac{1}{4} \times 3.14 \times \: {7}^{2} \\ \\ = \frac{1}{4} \times 3.14 \times \: 49 \\ \\ = 38.465 \: \: {cm}^{2} [/tex]

Answer:

38.47

Step-by-step explanation:

I just took the k12 test and 38.465 is wrong

What is the value of x?
21
24
32
44

Answers

Answer:

21

Step-by-step explanation:

im god

what is the perimeter of a football field 31 ft. by 20ft.?

Answers

Answer:102

Step-by-step explanation:you do 31+31=62 then 20+20=40 then 62+40=102

Write the expression 4/5 (x + 1) in standard form

Answers

multiply 4/5 ×1=4/1=4

4+1=5

Answer:

Step-by-step explanation:

[tex]\frac{4}{5}x+\frac{4}{5}[/tex]

Chords NP and MQ intersect at point S in circle R.
If MS = 3, NS = 2, and SQ = 8, what is the length of SP?

Answers

Option C:

The length of SP is 12.

Solution:

In the given circle, NP and MQ are chords of the circle.

MS = 3, NS = 2, SQ = 8

To find the length of SP:

Segments of chords theorem:

If two chords intersects in the interior of a circle, then the product of the lengths of the segment of one chord is equal to the product of lengths of the segments of the other chord.

By this theorem,

NS × SP = MS × SQ

⇒ 2 × SP = 3 × 8

⇒ 2 SP = 24

Divide by 2 on both sides of the equation, we get

SP = 12

Option C is the correct answer.

The length of SP is 12.

Final answer:

Using the Intersecting Chord Theorem, we find that the length of SP is 3/4 by setting up the equation 3 * 2 = SP * 8 and solving for SP.

Explanation:

The student is asking about finding the length of a chord segment in a circle where two chords intersect. Since chords NP and MQ intersect at point S inside circle R, we can apply the Intersecting Chord Theorem.

This theorem states that the product of the lengths of the segments of one chord is equal to the product of the lengths of the segments of the other chord. In formula terms, MS × NS = PS × SQ.

We are given MS = 3, NS = 2, and SQ = 8. To find the length of SP, we just substitute into the theorem's formula: (3) × (2) = SP × (8). From this, we calculate that SP = 3/4, which is the length of the segment SP.

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The ball will oscillate along the z axis between z=dz=d and z=dz=d in simple harmonic motion. What will be the angular frequency omega of these oscillations? Use the approximation dada to simplify your calculation; that is, assume that d2+a2a2d2+a2a2. Express your answer in terms of given charges, dimensions, and constants. Balance the following expression: __ CH3CH2COOH + __ O2 __ CO2 + __ H2O How many moles of O2 are required for the complete combustion of 6 mol of propanoic acid? Chandler Sporting Goods produces baseball and football equipment and lines of clothing. This year the company had cash and marketable securities worth $335,485, accounts payables worth $1,159,357, inventory of $1,651,599, accounts receivables of $1,488,121, short-term notes payable worth $313,663, and other current assets of $121,427. What is the company's net working capital? Write the missing statements in the following program so that: 1. it prompts the user to input two numbers. 2. If one of the numbers is 0, the program should output a message indicating that both numbers must be nonzero. 3. If the first number is greater than the second number, it outputs the first number divided by the second number; 4. if the first number is less than the second number, it outputs the second number divided by the first number; otherwise, it outputs the product of the numbers.C++ PROGRAM:#includeusing namespace std;int main(){ double firstNum, secondNum, thirdNum; double output; //missing statements return 0;} i actually have two questions here they are How did the Reformation change Christianity? A. The Catholic Church no longer allowed the use of icons. B. Many people left the Catholic Church and started or joined new Christian religions. C. The number of Christians declined as many people became non-religious. D. The Catholic Church adopted new holy books in addition to the Bible as the word of God.the next question is How did Europe benefit from the Crusades? A. Exposure to countries in the East led to the exchange of goods and ideas. B. It took back the Holy Land for hundreds of years until the 1900s. C. The Catholic Church reunited with the Orthodox Christian Church. D. The feudal system strengthened and the population increased. Is Rhinoceros and Paraceratherium similar in size? 3x+6y=24 turned into a graphing equation During the search for U-352, what other "discovery" did George Purifoy and his crew make? How many electromagnetic forces exist?a oneb. twoc.dthreefourPlease select the best answer from the choices provided Which of these technologies allows scientists to follow the movements of animals after placing electronic collars on them? Other side to the Spanish What percent of $4 equals $1 How do you use a calculator Calcium carbonate is most likely to dissolve in water with which characteristics?a. Low pressure and colder temperatures b. Low carbon dioxide and warmer temperatures c. Lots of carbon dioxide and warmer temperatures d. Low pressure and warmer temperatures e. Lots of carbon dioxide and colder temperatures How do u say pickle juice in Spanish For a science experiment. John gradually added a sedium hydroxide (NaOH) solution to warm vegetable oil in a glass test tube. Heobserved that combining the two clear liquids resulted in a solution that turned cloudy. Which statement best explains why thesolution became cloudy?CA The vegetable oil caused the mass of the sodium hydroxide solution to change8. The sodium hydroxide solution caused the vegetable oil to undergo a physical changeOc. The sodium hydroxide solution and vegetable oil underwent a chemical changeD. The vegetable at caused the density of the sodium hydroxide solution to change how many animals are in the world? How do Hattie and Lida differ? A. Hattie is good-natured; Lida is stoic. B. Hattie is trusting; Lida is circumspect. C. Hattie is carefree; Lida is responsible. D. Hattie is respectful; Lida is judgmental. E. Hattie is excited about the party; Lida is ambivalent about it. A car is traveling at 22 m/s and slows to 4.9 m/s in 4.0 seconds. What is the acceleration? Give the answer to one decimal place. 10. Write an equation in slope-intercept form for a line that is parallel to the liney= 2/5x +1