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ollegr [7]
2 years ago
10

PLS HELP I NEED HELP ASAP

Mathematics
2 answers:
melisa1 [442]2 years ago
8 0
960 cubic centimeters
monitta2 years ago
6 0

Answer:

960 cubic centimeters

Step-by-step explanation:

Base area is area of triangle: b*h*1/2

= 12*8*1/2 = 48

Base area times height is 48*20 = 960

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Peyton spent $15.05 on 7 gallons of gas for her car. Jamal is buying the same gasoline,
blagie [28]

<em>15.05 ÷ 7 = $2.15 per gallon</em>

<em>--</em>

<em>2.15 x 4 = $8.60</em>

<em>--</em>

<em>jamal can buy 4 gallons of gas</em>

<em />

8 0
3 years ago
Please give me the answers to all three I will mark u brilliant
elixir [45]

Answer:

First know the formula for the area of a circle;

<h2>A = πr^{2}</h2>

Where 'π' represents pi(3.14 or 22/7), and 'r' stands for the radius being squared.

For the first problem, we can see that 12 is our <u>diameter</u>.

And to find the radius, we need to find 1/2 of the diameter (half of the diameter), so;

D/2 = R

Replace with actual values;

12/2 = 6, <u>6</u> is our <u>radius</u>.

Now we plug this into our formula:

A = πr^{2}

A = 3.14(6^2)

A = 3.14(36)

A = <u>113.04 centimetres</u> is the area of the circle.

For the second problem, we can see that 18 is our <u>diameter</u>.

And to convert the diameter into the radius, we do what we did to the past problem, find 1/2 of the diameter.

So;

D/2 = R

18/2 = 9, <u>9</u> is our <u>radius</u>.

Now we plug this into our formula:

A = πr^{2}

A = 3.14(9^2)

A = 3.14(81)

A = <u>254.34 inches</u> is the area for this circle.

For the third problem, we can see that our radius is already given, 5.

So now we just simply and easily plug this into our formula;

A = πr^{2}

A = 3.14(5^2)

A = 3.14(25)

A = <u>78.5 meters</u> is the area for this circle.

4 0
1 year ago
The fence around a circular garden is 18 feet long. What is the area of the garden to the nearest square foot? Use 3.14 for pi.
Sidana [21]

Answer:

A = 26 ft²

Step-by-step explanation:

To find the area of a circle, use the formula A = πr²

We know π = 3.14 and C = 18.

Use the circumference to find "r". C = 2πr

C = 2πr

18 = 2(3.14)r

18 = 6.28r

r = 18/6.28        Exact answer

r ≈ 2.866           Rounded to three decimal places

You can use either of the two bolded "r" values. I will use the rounded answer in the formula for area.

Substitute π = 3.14 and r = 2.866.

A = πr²

A = (3.14)(2.866)²                  Solve exponents first

A = 3.14(8.213956)                Multiply

A = 25.7918218...                  Unrounded answer

A ≈ 26                                   Rounded to nearest square foot

Add the units back in.

<h3>A = 26 ft²</h3>
7 0
3 years ago
The volume of the triangular prim is 250 cubic inches. What is the value of x
Vinvika [58]

Answer:

12 in

Step-by-step explanation:

thank me and rate me plz!!!! thank you :)

7 0
3 years ago
Which is the equation of the function?
dlinn [17]

Answer

its the third one.

Step-by-step explanation:

7 0
3 years ago
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