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4 years ago

Simplify:

Mathematics

1 answer:

wlad13 [49]4 years ago

5 0

Answer:

The answer to your question is letter C. 7y³ + 7n²y² - 22y²

Step-by-step explanation:

y²(4y + 7n² + 2) - 3y² (-y + 8)

Multiply

4y³ + 7n²y² + 2y² + 3y³ - 24y²

Use the associative property for like terms

(4y³ + 3y³) + (2y² - 24y²) + 7n²y²

Simplify like terms

7y³ - 22y² + 7n²y² or 7y³ + 7n²y² - 22y²

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The Taylors plan to expand their

podryga [215]

Answer:

$A_{2} = 720\ ft^{2}$

Step-by-step explanation:

Let w and l be the width and length of the garage.

Let $A_{1}$ and $A_{2}$ be the area of garage at present and new garage.

Given:

The area of the garage at present

$A_{1}=80\ ft^{2}$

And he planed to tripling the dimensions of the garage.

We need to find the area of the new garage.

Solution:

We know the area of the rectangular garage.

$Area=width\times lendth$

$A_{1}=w\times l$

$w\times l=80$ ---------------(1)

The dimension of the new garage is triple, so the area of the new garage is.

$A_{2} = (3\times width)\times (3\times length)$

$A_{2} = (3\times w)\times (3\times l)$

$A_{2} = 9\times (w\times l)$

Substitute $w\times l=80$ from equation 1.

$A_{2} = 9\times (80)$

$A_{2} = 720\ ft^{2}$

Therefore, the area of the new garage $A_{2} = 720\ ft^{2}$

4 0

4 years ago

If 3(2x-4)=-36 ,the value of x is

nikklg [1K]

Answer:

x = -4

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

A cylindrical pain can has a diameter of 12 centimeters and height of centimetrs which is closest to the volume of the paint can

Karolina [17]

The volume of the cylinder having diameter 12 cm and height of 4 cm is 452 $cm^{3}$ .

Given diameter of cylinder be 12 cm and height of cylinder be 4cm.

We are required to find the volume of cylinder.

Volume is the quantity of substance a container can hold in its capacity.

Diameter=12 cm

Radius=6 cm (Radius is always equal to half of diameter)

Volume of cylinder=π $r^{2} h$

We have to just put the values of r, h and π in the formula to get the volume of the cylinder.

Volume=π $(6)^{2} 4$

=3.14*4*36

=452.57 $cm^{3}$

After rounding off we will get 452 $cm^{3}$ .

Hence the volume of cylinder is 452 $cm^{3}$ .

Learn more about volume at brainly.com/question/463363

#SPJ4

Question is incomplete as it should include height of cylinder be 4cm.

4 0

2 years ago

Please Help. {PENNFOSTER}

ehidna [41]

Add them up and divide by 4 and it says round up. your answer is B

8 0

3 years ago

Change the equation 2x - 5y + 4 = 0 into an equivalent equation written in the slope-intercept form

mamaluj [8]

Answer: The equation in slope intercept form is

y = 2x/5 + 4/5

Step-by-step explanation:

The equation of a straight line can be represented in the slope-intercept form, y = mx + c

Where c = y intercept

m represents the slope of the line.

The given equation is expressed as

2x - 5y + 4 = 0

Adding 5y to the left hand side and the right hand side of the equation, it becomes,

2x - 5y + 5y + 4 = 5y

5y = 2x + 4

Dividing the left hand side and the right hand side of the equation by 5, it becomes,

5y/5 = 2x/5 + 4/5

y = 2x/5 + 4/5

6 0

3 years ago