2 years ago

Can anybody help me please

Mathematics

1 answer:

Alexxandr [17]2 years ago

5 0

Step-by-step explanation:

I think you are clear. You can follow me to get more answers. Thanks.

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135 square feet

Step-by-step explanation:

area of base and top=2(1/2×6×2.5)=15 square feet.

area of three faces=(2.5+6+6.5)×8=15×8=120 ft

total surface area=15+120=135 square feet.

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2 years ago

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1 year ago

An optical inspection system is used to distinguish among different part types. The probability of a correct classification of a

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Answer: $\mu=2.88\ \&\ \sigma^2=0.115$

Step-by-step explanation:

Given : The probability of a correct classification of any part is : p=0.96

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Let the random variable X denote the number of parts that are correctly classified.

The, for the given situation, we have

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Hence, the mean and variance of X are 2.88 and 0.115 respectively.

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3 years ago

What 3-dimensional figure can be created by folding the shape shown below on the dotted lines?

oksano4ka [1.4K]

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2 years ago

Could someone help me step by step with this question?

a_sh-v [17]

$\frac{2}{3}(9+x)=-5(4-x) \\ \\ 3*\frac{2}{3}(9+x)=3*[-5(4-x)] \\ \\ 2(9+x)=-15(4-x) \\ \\ 18+2x=-60+15x \\ \\ -13x=-78 \\ \\ \cfrac{-13x}{-13} = \cfrac{-78}{-13} \\ \\ x=6$

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3 years ago