4 years ago

Find AB in 3 significant figures

Mathematics

1 answer:

Kobotan [32]4 years ago

6 0

Idkdjfjfdjfueisixjcfjfjedjdjd

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Kristen and her brothers had a pizza dividend into 15 slices. She and her two brothers ate a total of 6 slices. What fraction of

liberstina [14]

Answer:

40%

Step-by-step explanation:

6/15=.4 x 100=40%

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3 years ago

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David wants to build a rectangular fencing with the 5 identical parts for his animals. He has 780 feet of fencing to make it. Wh

Vladimir79 [104]

Answer:

65 ft by 39 ft

Step-by-step explanation:

Let x ft be the length of each part and y ft be the width of each part. The total perimeter of all 5 parts is

$6x+10y=780$

The length of the large rectangle is 5y ft and the width of the large rectangle is x, so the total area is

$A=x\cdot 5y$

From the first equation,

$y=78-0.6x$

Substitute it into the area expression:

$A(x)=x\cdot 5(78-0.6x)=390x-3x^2$

Find the derivative:

$A'(x)=390-3\cdot 2x=390-6x$

Equate it to 0:

$390-6x=0\\ \\6x=390\\ \\x=65$

Then

$y=78-0.6\cdot 65=78-39=39$

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3 years ago

Apples costs $1.98 per pound, how much does 1.5 pounds of apples cost

storchak [24]

<h2>$2.97 Is the answer.</h2>

Step-by-step explanation:

I did 1.98/2 to get the .5 in the equation and got .99 then I added that to 1.98 and for a final answer I came up with $2.97.

<u><em>PLEASE MARK BRAINLIEST</em></u>

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3 years ago

JK Rowling is autographing some of the new Harry Potter books. A store sells 56 books and she is able to autograph 5/8 of the bo

OlgaM077 [116]

Answer:

35 books

Step-by-step explanation:

56/8 = 7

7 x 5 = 35

5/8 of 56 = 35

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4 years ago

Please help!!! (brainliest)

V125BC [204]

Radius is from center to outside
diameter is from one side to other passing through center

possible answers for radius: lineAF, FC, BF, EF, DF
possible answers for diameter: AC or EB

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4 years ago