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Furkat [3]
3 years ago
15

Help me please as soon as possible

Mathematics
2 answers:
Stella [2.4K]3 years ago
6 0
90+31= 121
3x-1+121=120
3x+120=180
-120
3x=60
Divide by 3 on both sides
X=20
Nookie1986 [14]3 years ago
4 0
X=15


90+31+3x-1=180
121+3x-1=180
120+3x=180
3x=60
X=15
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the volume of a rectangular pyramid with a length of 7 feet, a width of 6 feet, and a height of 4.5 feet.
MatroZZZ [7]

Answer:

Volume = 63 feet

Step-by-step explanation:

To find the volume of a cube or a rectangular prism, the formula is

(L x W x H)/3. In other words, it is the length of the prism, times the width of the prism, times the height of the prism, whole divided by three, since it has a "triangular shape."

Let's substitute in values for these letters, L, W, and H. You said the length was 7, the width was 6, and the height was 4.5. Therefore, it will result in

(7 x 6 x 4.5)/3. That results in 189/3, which is 63.

Hope this helped!!!

7 0
3 years ago
Please help!!! Find the domain of the function y = 2 cot(5∕8x).
anastassius [24]

Answer:

B) All real numbers except 0 and integer multiples of 8π∕5

Step-by-step explanation:

Cotangent function:

The cotangent function is given by:

y = \cot{ax} = \frac{\cos{ax}}{\sin{ax}}

Domain:

All real values except those at which:

\sin{ax} = 0

The sine is 0 for 0 and all integer multiples of \frac{1}{a}

In this question:

a = \frac{5}{8}, so the values outside the domain are 0 and the integer multiples of \frac{8}{5}. Then the correct answer is given by option b.

6 0
3 years ago
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Bess [88]

Answer:

78

Step-by-step explanation:

50 questions worth 2 a piece and you miss 11 questions so we are going to take 2(11) off of 50.

We are doing 100-2(11).

100-22=78.

Or if you miss 11 questions you get 39 right. So 39(2)=78.

6 0
3 years ago
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Fiesta28 [93]
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Klio2033 [76]
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5 0
3 years ago
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