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2 years ago

50 points! Look at the picture attached. I will mark brainliest

Mathematics

2 answers:

Radda [10]2 years ago

8 0

I’m pretty sure the answer would be 116

klemol [59]2 years ago

4 0

Answer:

Step-by-step explanation:

The small triangle is similar to the triangular face. Its side edges are half the length of the side edges of the face, so its base is half the length of the face.

2*58 ft = 116 ft

The length of the base of the pyramid is 116 ft.

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Solve each system of equations using matrices.<br> -2x = -6y + 8<br> 2y = x + 1

Elden [556K]

Answer: 1.) x - 2y = 4 , add 2y to both sides. ---> answer is, X = 2y + 4

2.) 2x - 6y = 8, Add 6y to both sides, then divide both sides by 2. --> answer is, X = 3y + 4

6 0

2 years ago

Name the three different types of proofs you saw in this lesson

KiRa [710]

Answer:

um idk but thanks for the points

8 0

2 years ago

An analyst from an energy research institute in California wishes to precisely estimate a 99% confidence interval of the average

Lena [83]

Answer:

190

Step-by-step explanation:

Data provided in the question:

Confidence level = 99%

Therefore,

α = 1% = 0.01

[ from standard normal table ]

z-value for $z_{\frac{\alpha}{2}}= z_{\frac{0.01}{2}}=$ = 2.58

Margin of error, E = $0.06

Standard deviation, σ = $0.32

Now,

n = $(\frac{z_{0.005}\sigma}{E})^2$

Here,

n is the sample size (or the minimum number of gas stations )

on substituting the respective values, we get

= $(\frac{z_{0.005}\sigma}{E})^2$

= $(\frac{2.58\times0.32}{0.06})^2$

= 13.76²

= 189.3376 ≈ 190

Hence,

minimum number of gas stations that she should include in her sample is 190

5 0

3 years ago

Subtact: (3x + 4) - (x + 2)

stiv31 [10]

Ok this is the answer to this question 2(x+1)

8 0

2 years ago

Read 2 more answers

How can u show that two objects are proportional using a graph

Grace [21]

The graph has to be a straight line that pass through the origin (0,0)

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3 years ago