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Angelina_Jolie [31]
2 years ago
8

Is this right if not please tell me explanation

Mathematics
2 answers:
tankabanditka [31]2 years ago
8 0

Answer:

No, right answer is = 1017.36

sammy [17]2 years ago
7 0

Answer:

1017.36

Step-by-step explanation:

All your work is correct, but the final answer is not. In the problem it says to use 3.14 as pi, but when you multiplied you did:

\pi  * 6^{2}*9 = 1017.88

instead of

3.14*6^{2}*9 = 1017.36

like you had written above. So the final is actually supposed to be 1017.36

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Hope you can read those plz help me
Annette [7]

the answer to the first question is B

the answer to the second question is also B i think


6 0
3 years ago
Solve the following pair of simultaneous:<br><img src="https://tex.z-dn.net/?f=%205x%20%2B%202y%20%3D%20%20-%202%20%20%20%20%20%
Vladimir [108]

Answer:

x = -2 , y = 4

Step-by-step explanation:

given:

5x + 2y = -2                            <em>*4</em>

4x + 3y = 4                             <em>*5</em>

Solving simultaneously,

    20x + 8y = -8 ....eq 1

(-)  20x +15y = 20  ...eq 2

.............................................

-7y = -28

y = -28 / -7

y = 4

  • if y = 4

using equation 2,

20x +15(4) = 20

20x = -40

x = -2

8 0
2 years ago
Fabio and Carlos play on a basketball team together. In the last game, Fabio had 7 points less than 2 times as many points as Ca
Ymorist [56]
Let 'c' represent the number of points Carlos scored. 2c - 7 = 31 c = 19 points
7 0
3 years ago
1 po
Natali5045456 [20]
The answer is A.
19/9
5 0
3 years ago
Ben made a model (shown below) of the square pyramid he plans to build when he grows up.
elena-s [515]

Answer:

336 m^2

Step-by-step explanation:

The surface area of a square pyramid is the sum of the area of the squared base + 4 times the area of each triangular face, therefore:

A=A_b + 4A_t

where:

A_b=L^2 is the area of the base, where

L is the length of the base

A_t=\frac{1}{2}Lh is the area of each triangular face, where

h is the height of the face

Substituting,

A=L^2+2Lh

For the model in this problem,

L = 12

h = 8

Therefore, the surface area here is:

A=12^2 +2(12)(8)=336

4 0
3 years ago
Read 2 more answers
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