Evaluate each expression 28-c3+6

Answers

Answer 1

Answer:

28-c3+6=0

Collect like terms

28-6=c3

22=c3

Divide both sides by 3

22/3=c3/3

C=7

Answer 2
Final answer:

To evaluate the expression 28-c3+6, you must know the value of 'c'. Assuming c3 means c cubed, then you would calculate 'c' cubed, subtract it from 28 and then add 6. Without a value for 'c', we cannot compute a definitive answer.

Explanation:

To solve this mathematical expression, we must first understand what c3 means. In this case, 'c' and '3' are variables and without a given value for 'c' we cannot fully evaluate it. However, if we assume that 'c3' means 'c' cubed then, we can proceed with that understanding. Cubing a number means multiplying it by itself twice. For example, if c=2, then c cubed would be 2*2*2=8.

Next step is to follow the rules of the order of operations, often remembered by the acronym PEMDAS - Parentheses, Exponents, Multiplications and Divisions (from left to right), Additions and Subtractions (from left to right).

Therefore, given the expression 28-c3+6, you would first calculate 'c' cubed and then perform the remaining operations from left to right. If 'c' was 2, your expression would look like this: 28-8+6. Following PEMDAS, subtraction comes before addition, so you subtract 8 from 28 which is 20 and then add 6 to that, giving a result of 26. But remember, without knowing the true value of 'c', we cannot definitively solve the expression.

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Related Questions

Help please ! Please answer any

Answers

Answers are rectangle, rhombus and parallelogram respectively.

Step-by-step explanation:

Answer to 74 is a rectangle. It has opposite sides equal and adjacent sides are perpendicular.Answer to 75 is a rhombus. It has all equal sides and opposite angles are equal, but adjacent angles are not equal. Answer to 76 is a parallelogram. It has opposite sides equal and parallel but adjacent sides are not equal.

What is 2/5 - 1/8 I do not know what it is

Answers

Answer

11          

 —— = 0.27500

 40          

Answer: 11/40

Step-by-step explanation: 2/5 - 1/8 have to have a common denominator. The common denominator will be 40 so 2/5 = 16/40 1/8 = 5/40. 16-5=11

What is the long division for 672 divided up 37?

Answers

Answer:

18.1621622 or 18.162

Step-by-step explanation:

Answer:

Attached in image below!

jeremy rides his bike at a rate of 12 miles per hour below is a table that represents the number of hours and miles Kevin rides assume both bikers ride at a constant rate which biker rides at a greater speed

Answers

The correct answer would be, Jeremy rides at a greater speed than Kevin.

Step-by-step explanation:

Jeremy rides at a rate of 12 miles per hour

Kevin rides at a rate given in the table

Let Y be the distance traveled by Jeremy

And X be the number of hours

Then for Jeremy:

y/x = 12/1

=> y= 12 x

For Kevin:  

(46-23)/(4-2)

= 23/2

= 11.5

So for Kevin, Y = 11.5 x

So when Jeremy's and Kevin's rates are compared,

12 > 11.5

which means Jeremy rides at a greater speed.  

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Final answer:

To determine which biker rides at a greater speed, Jeremy's speed of 12 miles per hour must be compared with data from Kevin. Without specific information about Kevin's travel distance and time, we cannot conclude who is faster.

Explanation:

To determine which biker rides at a greater speed, we must first establish the speed at which Jeremy rides his bike. Then we need to compare that speed to the information given for Kevin. Unfortunately, the question as stated does not provide specific details for Kevin's hours and miles. However, we know that Jeremy rides at 12 miles per hour.

Speed is calculated by dividing the distance traveled by the time it takes to travel that distance. For example, if a cyclist like Jeremy travels 12 miles in 1 hour, his speed is 12 mph. In another example, if Billy rides 6 miles in 0.5 hours (30 minutes) at a speed of 12 km/h, we can calculate his speed in miles per hour by realizing that 1 kilometer is approximately 0.621371 miles.

Without Kevin's data, we cannot compare his speed to Jeremy's directly. To determine which biker rides faster, we would need information on the distance Kevin travels and the time he takes to do so.

Joel looks at a map of Colorado, scowls, and tears it to shreds. "I don't need this lousy map," he mutters, puffing out his chest and continuing his journey through the wilderness. Before he destroyed it, Joel's map showed an outline of Colorado, a rectangular state with dimensions 600\text{ km}600 km600, start text, space, k, m, end text by 450\text{ km}450 km450, start text, space, k, m, end text. Move points to recreate Joel's map of Colorado on the grid below.

Answers

Answer:12 x 9

Step-by-step explanation: 600 x 2/100 = 1200/100 = 12

450 x 2/100 = 900/100 = 9

Remember that 100km = 2 units

Final answer:

Draw a rectangle with the dimensions given (600 km by 450 km) to recreate Joel's map of Colorado on the grid. Make sure to align the rectangle's longer side with latitude (horizontal) and shorter side with longitude (vertical).

Explanation:

To recreate Joel's map of Colorado on the grid, we can simply consider the dimensions given of 600 km by 450 km. Draw a rectangle on the grid with one side being 600 units (representing km) and the other being 450 units (representing km). This rectangle will represent Colorado, and you can label it accordingly. Keep in mind that since it's a map, the orientation of Colorado's longer side (600 km) should align with the latitude and shorter side (450 km) should align with the longitude, assuming that the west-east direction is taken as horizontal.

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the perimeter of a regular hexagon is represented by this expression 42x-24. the expression ______ represents the length of one side of the hexagon.

Answers

Yo sup??

let the lenght of one side of the hexagon be y

total perimeter=sum of lenght of all sides=6y

But

perimeter=42x-24

Therefore

6y=42x-24

y=7x-4

Hence the equation of one side is 7x-4

Hope this helps

The answer is 7x-4.

Hope this helped

In circle D, mGEC is 230º. What is the measure of ∠GDC ? 70º 130º 170º 360º A circle with center D has points G, F, C and E on the circumference. Points G and D are connected by a line segment. Points D and C are connected by a line segment. Point F is between points G and C and point E is to the left of point G.

Answers

The answer is 130. I did the quiz and got it right.

I really hope this ends up helping you. You got this!

The measure of ∠GDC is 130° as it is calculated by subtracting the arc GEC's measure from the total degrees in a circle, which is 360°.

If the measure of arc GEC in circle D is 230°, to find the measure of ∠GDC,

we recall that the measure of an arc in a circle is equal to the measure of the central angle that intercepts that arc. Since ∠GDC is a central angle intercepting arc GEC, its measure must also be 230°.

However, because we are looking for the measure of the angle inside the circle, we must subtract this angle from the total 360° of the circle.

So,
360° - 230°

= 130°

So, the measure of ∠GDC is 130°.

i need help PLEASE!!!!

Answers

Answer:

OPTION A

OPTION B

OPTION D

Step-by-step explanation:

Given that a bag of apples cost 'a' dollars.

A bag of oranges cost 'a + 2' dollars.

Therefore, one bag each of apples and oranges should cost: a + a + 2 dollars.

Since, Dorie buys 5 bags of apples and Oranges, it would have costed her:

5(a + a + 2)

= 5(2a + 2)

= 10a + 10

Hence, OPTION A, B and D are the correct answers.

JKL is a right triangle. JL = 10, KL = 8,
and JK = 6. What is cos L?
10

What is the answer

Answers

Answer:

[tex] \cos L = \dfrac{4}{5} [/tex]

Step-by-step explanation:

The right angle is angle K. KL and JK are legs. JL is the hypotenuse.

For angle L, KL is the adjacent leg.

In general, for acute angle A of a right triangle,

[tex] \cos A = \dfrac{adjacent~leg}{hypotenuse} [/tex]

In this case,

[tex] \cos L = \dfrac{adj~leg}{hyp} [/tex]

[tex] \cos L = \dfrac{KL}{JL} [/tex]

[tex] \cos L = \dfrac{8}{10} [/tex]

[tex] \cos L = \dfrac{4}{5} [/tex]

A traffic signal is green for 20 seconds,
then yellow for 5 seconds, then red for
25 seconds. When you reach the signal,
what is the probability it is green?

Answers

Answer:

Step-by-step explanation:

green for 20 seconds

yellow for 5 seconds

red for 25 seconds

total of 50 seconds

P(green) = 20/50 = 2/5

20+ 5+ 25 =50
20/50
2/5

The two figures above are congruent. Find the measure of the angle that isn't labeled on either figure.

Answers

Answer:

I think it's 100

Step-by-step explanation:

133 + 86 + 41 = 260

360 - 260 = 100

A rectangular garden measuring 12 meter by 16 meter is to have a walkway installed around it with a width of x meters as shown below find the area of the walkway

Answers

Answer:

[tex]Area\ of\ walkway=4x^2+56x\ meter^2[/tex]

Step-by-step explanation:

[tex]Length\ of\ garden=16\ meters\\\\Width\ of\ garden=12\ meters\\\\Width\ of\ walkway=x\ meters\\\\Now\ Length\ of\ new\ rectangular=16+x+x\ \ \ \ \ (as\ x\ meter\ walkway\ increased\ both\ the\ sides)\\\\Now\ width\ of\ new\ rectangular=12+x+x\ \ \ \ \ (as\ x\ meter\ walkway\ increased\ both\ the\ sides)\\\\Area\ of\ walkway=Area\ of\ new\ rectangular-Area\ of\ rectangular\\\\Area\ of\ rectangle=length\times width\\\\Area\ of\ walkway=(16+2x)\times (12+2x)-16\times 12[/tex][tex]Area\ of\ walkway=16\times 12+2x\times 12+16\times 2x+2x\times 2x-16\times 12\\\\Area\ of\ walkway=4x^2+56x\ meter^2[/tex]

HELP QUICK I NEED TO KNOW THIS Kiva’s family is moving and he helps by carrying a 21-pound box to the truck. It is 65% lighter than the box that his father carries to the truck. What is the weight of the box that Kiva's father carries?

Answers

Final answer:

To determine the weight of the box Kiva's father carries, we calculate 21 pounds as 35% of the father's box weight and find it to be 60 pounds.

Explanation:

Kiva's family is moving and he carries a 21-pound box which is 65% lighter than the box his father carries. To find the weight of the box that Kiva's father carries, we need to determine what weight would be 65% lighter by the smaller box's weight. Let's denote the father's box weight as F. We know that 21 pounds is equal to 35% of the father's box's weight because 100% - 65% = 35%. So, we have:

Represent the relationship as an equation: 0.35F = 21.Divide both sides of the equation by 0.35 to find F: F = 21 ÷ 0.35.Calculate F to find the father's box weight: F = 60 pounds.

Therefore, the weight of the box that Kiva's father carries is 60 pounds.

Kayla is running for charity. Her dad pledges to give her $0.50 per mile she runs. Her mom pledges to give her a flat donation of $5. How many miles will Kayla have to run to get the same donation from both parents?

Answers

Answer:

  10 miles

Step-by-step explanation:

Let m represent the number of miles Kayla runs. We want to find m such that ...

  0.50m = 5.00

Divide by the coefficient of m:

  m = 5.00/0.50 = 10

Kayla has to run 10 miles to get the same donation from both parents.

Answer:

!0 miles

Step-by-step explanation:


Choose all that give the correct expression for the quantity described.

Answers

Answer:

Its D on e2020

Step-by-step explanation:

trust me

please help..!!!!!!!

Answers

Answer:

E) (-4, -3)

Step-by-step explanation:

To use elimination, you need to have one variable in both equations that have the same coefficient. (The coefficient is the number attached to the variable). Both equations have "7y".

The way elimination works is by eliminating one of the variables first. Decide how (-7y) and (-7y) can cancel out and become 0. You can either add or subtract.

(-7y) - (-7y)        Try subtracting

= (-7y) + 7y

= 0

Based on this, we should subtract the whole equations.

Set up the equations like normal subtraction. Then, subtract each of the terms that have the same variable.

.   4x - 7y = 5

-   9x - 7y = -15       Do 4x - 9x = -5x.    -7y - (-7y) = 0.      5 - (-15) = 20.

.    -5x - 0 = 20       "y" cancelled out

.          -5x = 20          Isolate 'x'

.      -5x/-5 = 20/-5       Divide both sides by -5

.              x = -4          Solved x-coordinate

Substitute 'x' for -4 in any of the equations. Then simplify and isolate "y" to solve for the y-coordinate.

4x - 7y = 5

4(-4) - 7y = 5         Simplify the multiplication.

-16 - 7y = 5         Start isolating 'y' now

-16 + 16 - 7y = 5 + 16         Add 16 to both sides. Left side cancels out 16

-7y = 5 + 16         Solved right side by adding

-7y = 21

-7y/-7 = 21/-7         Divide both sides by -7

y = -3              Solved y-coordinate

Therefore the answer is (-4, -3).

*WILL GIVE BRAINLIEST*
If you invested $500 at 5% simple interest for 2 years, how much interest do you earn? Show work and answer in complete sentences to earn full credit.



If you invest $500 at 3% compounded monthly for 2 years, how much interest you do earn? Show work and answer in complete sentences to earn full credit.



Which would you rather do?

Answers

Answer:

$50 and

$30

Step-by-step explanation:

Question 1. Principal = $500

Rate = 5%

Time = 2yesrs

Interest = PRT /100

= 500 x 5 x 2 /100

= 5000/100

= $50

Interest = PRT/100

Principal P =$500

Rate = 3%

Time = 2 years

Therefore, interest =

500 x 3 x 2 /100

= 3000/100

= $30

Two quantities x and y are directly proportional if x is doubled what happens to y?

Answers

If x is doubled, then y is also doubled

Solution:

Given that,

Two quantities x and y are directly proportional

For a direct proportion,

If x increases then y increases

If x decreases then y decreases

Given that, x is doubled

Then y will also gets doubled

Also,

x and y are directly proportional

[tex]y \propto x\\\\y = kx[/tex]

Where k is the constant of proportionality

If x is doubled then,

y = k(2x)

y = 2(kx)

Thus y is also doubled

Answer:

its doubled

Step-by-step explanation:

if its doubled then its doubled

a pool manager balances the ph level of a pool. the price of a bucket of chlorine tablets is $90, and the price of a ph test kit is $11. the manager uses a coupon that applies a 40% discount to the total cost of the two items. how much money does the pool manager pay for each item?

Answers

Final answer:

The pool manager pays $54 for the chlorine tablets and $6.60 for the pH test kit.

Explanation:

The pool manager pays $54 for the bucket of chlorine tablets and $6.60 for the pH test kit after applying the 40% discount.

To find the price of the chlorine tablets after the discount, we multiply $90 by 40% to get $36. Subtracting $36 from $90 gives us the final price of $54.To find the price of the pH test kit after the discount, we multiply $11 by 40% to get $4.40. Subtracting $4.40 from $11 gives us the final price of $6.60.

Therefore, the pool manager pays $54 for the chlorine tablets and $6.60 for the pH test kit.

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Final answer:

The pool manager pays the cost of  $54 for the chlorine tablets and $6.60 for the pH test kit.

Explanation:

The calculation you're looking to perform is a simple example of a percentage discount on a sum of money. To figure out how much the pool manager pays for each item, you have to first calculate the total cost of the items. The total cost of both the bucket of chlorine tablets ($90) and the pH test kit ($11) is $101.

A 40% discount on the total cost is then calculated by taking 40% of $101, which is $40.40. This discount is subtracted from the total cost (101-40.40), leaving the pool manager to pay $60.60. To determine the cost of each item after the discount, we assume that the discount was applied equally to both items.

This means that the cost price for each the bucket of chlorine tablets and pH test kit, after the discount, would be $54 and $6.60 respectively.

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what is the measure of angle 7?

Answers

m<1 = m<4 by vertical  angles theorem

3x + 10 = 4x - 15

-1x = -25

x = 25

m<1 + m<7 = 180 if parallel alternate interior angles supplementary

3x + 10 + m<7 = 180

3(25) + 10 + m<7 = 180

75 + m<7 = 180

m<7 = 105°

Hope this helps! ;)

If the percent of discount is 55% and the sale price is $60 what was the original price

Answers

Answer:

133.33 dollars bc when u divide 133.33 form 55% it's 60 dollars.

Evan buys some oranges. He gives 1,2 or 3 oranges to April. He has5 oranges left . Draw pictures and write a number sentence to show how many oranges Evan could have bought

Answers

Answer:

6, 7 or 8 oranges

Step-by-step explanation:

How many solutions does this system of equations have?

y=-2x+2
2y+4x=4

Answers

Answer:

infinitely many solutions

Step-by-step explanation:

look at picture

express 0.003597 to three significant figures​

Answers

Answer:

0.00360.

Step-by-step explanation:

Leading zeros in a number are not significant, so your number has four significant figures.

You must drop the 7 from 0.003597.

Since 7 is greater than 5, you must add 1 to the 9

[tex]\begin{array}{r|l}1& \\0.00359 &\text{7}\!\!\!\!\diagup \\\mathbf{0.00360} & \\\end{array}[/tex]

Final answer:

To express 0.003597 to three significant figures, round to 0.00360; in exponential notation, this is 3.60 × 10^-3.

Explanation:

To express 0.003597 to three significant figures, we identify the first non-zero digit as the starting point of significant figures.

We count three digits from there, which gives us 0.00360 when rounding up the seventh which is in the fourth place after the decimal. In exponential notation, this would be 3.60 × 10-3.

Jack has some marbles. He has ten more red marbles than blue marbles. He has fewer yellow marbles than blue marbles.

How many of each color marble could Jack have?

(This is the whole question)​

Answers

A possible number of marbles for this situation is:

Red = 13

Blue = 3

Yellow = 2

How many of each color marble could Jack have?

Let's define the variables:

R = number of red marbles.

B = number of blue marbles.

Y = yellow marbles.

Then we can write:

R = B + 10

Y < B

So we have only these two conditions, now let's find possible values.

If we define B = 3, then:

R = 3 + 10 = 13

Y < 3

Then Y can be 2.

So a possible value is:

Red = 13

Blue = 3

Yellow = 2

Final answer:

The number of each color marble Jack has can be determined by setting the number of blue marbles as a variable. Red marbles are ten more than blue, and yellow marbles are fewer than blue. Specific combinations are possible as long as these conditions are met.

Explanation:

Jack has some marbles. He has ten more red marbles than blue marbles and fewer yellow marbles than blue marbles. To determine how many of each color marble Jack could have, consider blue marbles as the variable x. Then, the number of red marbles would be x + 10 and the number of yellow marbles would be less than x.

Here are a few possible combinations:

If Jack has 1 blue marble, he cannot have 10 more red marbles and fewer yellow marbles as this would result in a negative number of yellow marbles which is not possible.

If Jack has 2 blue marbles, then he would have 12 red marbles (x + 10), and potentially 1 yellow marble since it needs to be less than the number of blue marbles.

If Jack has 3 blue marbles, he would have 13 red marbles, and it could be 1 or 2 yellow marbles.

Thus, the compositions of marbles are dependent on the number of blue marbles Jack has. As long as the number of red marbles is ten more than blue and the yellow marbles are fewer than blue, the condition is satisfied.

2 Points
What is the measure of ZBPU?
ОВ. 40°
PREVIOUS

Answers

Answer:

80

Step-by-step explanation:

40 times 2=80

Have a nice day!!!

Based on the graph below, what are the factors of the quadratic function?

Answers

it is the X+3 and (x+.2)

You have $40 to spend on turkey and cheese for a party. At the deli, turkey is $10 per pound inches is six dollars per pound. Write an equation that represents the situation

Answers

Answer:

40=10x+ 6y

Step-by-step explanation:

x representing pounds of turkey

y representing pounds of cheese

last year, dee got 60 pounds of tomatoes off the tomato plant in her garden. if she plants 4 tomato plants this year, about how many pounds of tomatoes should she expect?
A: 40 pounds
B: 60 pounds
C: 180 pounds
D:240 pounds​

Answers

D : 240 pounds.
The problem gives us the ratio of 60lbs : 1 plants. So, if dee plants four plants, each one has 60 lbs, so she’ll have a total of 240 lbs.

A regular hexagon is shown.

What is the measure of the radius, c, rounded to the nearest inch? Use the appropriate trigonometric ratio to solve.

6 in.
10 in.
14 in.
24 in.

Answers

Answer:

14 in.

Step-by-step explanation:

well to start we have to know the relationships between angles, legs and the hypotenuse.

a: adjacent

o: opposite

h: hypotenuse

sin α = o/h

cos α= a/h

tan α = o/a

now as we know that the triangle that is formed has a right angle of 90 degrees, and two other angles that are 30 and 60 degrees.

We can know this by the properties of the hexagons

hexagon is formed by 6 equilateral triangles

equilateral triangles have 3 angles of 60 degrees

the triangle of the image is half of one of those triangles so it will have the upper angle of 30 and the other of 60

Now if we take the angle of 30 degrees and apply the following formula

sin α = o/h

cos 30 = a/h

0.866 = 12/h

h = 12/0.866

h = 13.8564

h = c

the nearest number is 14

Answer:14in on edg.

Step-by-step explanation:

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