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neonofarm [45]
3 years ago
8

Need help asap please help Find the surface area of this regular pyramid

Mathematics
1 answer:
lara [203]3 years ago
4 0

Answer:

189 ft²

Step-by-step explanation:

In the above diagram we are given

Slant height = 6ft

Base = 9 ft

The formula for the surface area of this regular pyramid is given as:

S.A = 2bs + b²

S.A = 2 × 9 × 6 + 9²

S.A = 108 + 81

S.A = 189 square feet(ft²)

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the volume V of a gas at a constant temperature varies inversely with the pressure P. when the volume is 100 cubic inches the pr
fiasKO [112]

Answer:

The pressure is 20\ psi

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent an inverse variation if it can be expressed in the form y*x=k or y=k/x

In this problem we have

V*P=k

where

V is the volume of a gas at a constant temperature

P is the pressure

we have

For V=100\ in^{3},P=25\ psi

step 1

Find the value of k

substitute the values of V and P

100*25=k

k=2,500

The equation is equal to  V*P=2,500

step 2

Find the pressure when the volume is 125 cubic inches

For V=125\ in^{3}

substitute in the equation and solve for P

125*P=2,500

P=2,500/125=20\ psi

8 0
3 years ago
Jon has $45.00. He plans to spend 4/5 of his money on sports equipment. How much will he spend
stich3 [128]
He will spend 80% of his money
5 0
4 years ago
-1/2+2/5 in simplest form
Effectus [21]

Answer:

-1/10

Step-by-step explanation:

We need to get a common denominator of 10

-1/2 *5/5 = -5/10

2/5*2/2 = 4/10

-5/10 +4/10 = -1/10

4 0
3 years ago
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Write the word sentence as an inequality -5/9 is no less than 5 times a number k. An inequality is
Stolb23 [73]

Answer:

-5/9 ≥ 5k

Step-by-step explanation:

no less than means greater than or equal to because -5/9 is the lowest it can go (nothing less than), meaning that number or higher. 5 times a number k is just 5 times k, which is 5k to the inequality is

-5/9 ≥ 5k

8 0
2 years ago
How do I find x and y
Usimov [2.4K]
First you would have to find the third angle in the triangle which you would do by adding 63+61 and subtracting the resulting number from the total degrees in a triangle. From there, you would calculate x and y using the knowledge that angles on a line equal 180.
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3 years ago
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