3 years ago

The surface area of the prism is Square unit all measurements in the image below are in units input whole numbers only

Mathematics

2 answers:

lbvjy [14]3 years ago

6 0

(8)(6)+(6)(6.5)+(10)(6.5)+(6.5)(8)=answer

enyata [817]3 years ago

3 0

the answer to this question is (8)(6)+(6)(6.5)+(10)(6.5)+(6.5)(8)

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(3+5)x7-[10+(45-15)\5]

Gelneren [198K]

$Use\ PEMDAS\\\\(3+5)\times7-[10+\frac{(45-15)}{5}]=(8)\times7-(10+\frac{30}{5})\\\\=56-(10+6)=56-16=\boxed{\boxed{40}}$

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2 years ago

If an airplane in a 1 in. : 4 ft. scale drawing is 5 in. long, how long is the actual airplane? Use proportions to solve the pro

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Answer:

20ft

Step-by-step explanation:

20ft is the answer because you would do 4 x 5 = 20, since the scale factor is 1in : 4ft

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A manufacturer cuts squares from the corners of a rectangular plece of sheet metal that measures 2 inches by 7 inches (see Figur

Vladimir79 [104]

Answer:

The value of x that maximizes the volume enclosed by this box is 0.46 inches

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Step-by-step explanation:

see the attached figure to better understand the problem

we know that

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where

$L=(7-2x)\ in\\W=(2-2x)\ in\\H=x\ in$

substitute

$V=(7-2x)(2-2x)x$

Convert to expanded form

$V=(7-2x)(2-2x)x\\V=(14-14x-4x+4x^{2})x\\V=14x-14x^2-4x^2+4x^{3}\\V=4x^{3}-18x^{2} +14x$

using a graphing tool

Graph the cubic equation

Remember that

The domain for x is the interval -----> (0,1)

Because

If x>1

then

the width is negative (W=2-2x)

The maximum is the point (0.46,3.02)

see the attached figure

therefore

The value of x that maximizes the volume enclosed by this box is 0.46 inches

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3 years ago

A teacher asked his students to vote for an animal to be their class pet. Five-eighteenths of the students voted for a rabbit, O

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Answer:

<em>Since you didn't list the statements, I'll just list some true statements.</em>

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There are 17 students in this class.

Majority of students voted for a hamster.

Snake was the least voted for.

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2 years ago

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dem82 [27]

The overall probability it 7/17

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2 years ago