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3 years ago

WHAT IS THE TOTAL SURFACE AREA OF THE SQUARE PYRAMID BELOW!?!??!?!

Mathematics

2 answers:

deff fn [24]3 years ago

8 0

Answer:

Solution given:

side of base[a]=7in

height[h]=11in

slant height [l]=11.5in

THE TOTAL SURFACE AREA OF THE SQUARE PYRAMID=a²+2ah=7²+2*7*11=203in²

The total surface area of square pyramid is 203in².

Stella [2.4K]3 years ago

7 0

Answer:

the answer is going to be 203 square inches

Step-by-step explanation:

7 x 11 = 77

77 x 2 = 154

7 x 7 = 49

154 + 49 = 203

NOTICE:11.5 is useless, don't get tricked.

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High-power experimental engines are being developed by the Stevens Motor Company for use in its new sports coupe. The engineers

Maurinko [17]

Answer:

The 99% of a confidence interval for the average maximum HP for the experimental engine.

(536.46, 603.54)

Step-by-step explanation:

Step:-1

Given that the mean of the Population = 540HP

Given that the size of the sample 'n' = 9

Given that the mean of the sample = 570HP

Given that the sample standard deviation = 30HP

Step(ii):-

Degrees of freedom = n-1 =9-1 =8

t₀.₀₀₅ = 3.3554

The 99% of a confidence interval for the average maximum HP for the experimental engine.

$(x^{-} - t_{\frac{0.01}{2} ,8} \frac{S.D}{\sqrt{n} } ,x^{2} + t_{\frac{0.01}{2},8 } \frac{S.D}{\sqrt{n} } )$

$(570-3.354\frac{30}{\sqrt{9} } , 570+3.354\frac{30}{\sqrt{9} } )$

(570 - 33.54 , 570+33.54)

(536.46 , 603.54)

Final answer :-

The 99% of a confidence interval for the average maximum HP for the experimental engine.

(536.46, 603.54)

4 0

3 years ago

Work out -8 - 8 I don’t understand this question help

shepuryov [24]

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4 years ago

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A cube has a length, width and height of 6 feet. What is the volume in cubic INCHES?

Inessa05 [86]

Answer:

Step-by-step explanation:

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Which value is a solution of the equation 5-4x=-3? A. 0 B. 2 C. -3 D. 1/4

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B. 2 I hope that this helps.

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Shane wants to plant 28 marigold plants and 36 rose plants in his garden. What is the greatest number of rows possible if each r

Dennis_Churaev [7]

Answer:

HCF=2*2=4

Step-by-step explanation:

Given : Shane wants to plant 28 marigold plants and 36 rose plants in his garden

To Find : the greatest number of rows possible each row has the same

number of marigold plants and the same number of rose plants.

Solution:

marigold plants = 28

rose plants = 36

To find the greatest number of rows possible if each row has the same

number of marigold plants and the same number of rose plants.

we need to find HCF of 28 and 36

28 = 2 x 2 x 7

36 = 2 x 2 x 3 x 3

HCF = 2 x 2 = 4

greatest number of rows possible is 4

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