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3 years ago

Explain why (a+b)^2 = a^2+b^2 if and only if a=0 or b=0

1 answer:

const2013 [10]3 years ago

7 0

Hope this helps! Because when you would fill in the variables 0=0 which which make the expression too that they’d equal the same.

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jessica will babysit children for $8 an hour. ciara will babysit for an appointment fee of $12 and $4 an hour. how many hours wo

SSSSS [86.1K]

Answer:

Answer are in bold below

Step-by-step explanation:

Question: 1

Jessica = $8

Ciara = $12 + 4 $16

Now we times both values.

16 x 8 = $128

8 x 16 = $128

They would both need to work 8 hours ft=or the same money.

Question 2:

$8 x 5 = $40

$16 x 5 =$80

Jessica will be less expensive.

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3 years ago

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A rectangular box is to have a square base and a volume of 70 ft3. The material for the base costs 38¢/ft2, the material for the

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3 0

3 years ago

Help plz:))) I’ll mark you BRAINLIEST

inessss [21]

Answer:

not idea sorry but 4 no is idea it can be solve the 10 std

6 0

3 years ago

3 • X = 5.25.<br> What is X?

Archy [21]

Your answer will be x=1.75

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3 years ago

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Geometry help needed!

lilavasa [31]

Answer:

13.76

Step-by-step explanation:

Area of the whole

The area of the whole = s^2 (the firgure is a square

s = 8

Area of the whole = 8^2 = 64

Area of the unshaded part

The 2 half circles = 1 whole circle

The radius of the 1/2 circle = 4 (eight has been cut in half)

Area of two half circles = 2* (pi r^2/2)

Area of two half circles = 2 * (pi 4^2/2)

area of two half circles = 16*pi

Area of the shaded area

Area of the shaded area = area of the whole - area of the unshaded area

Area of the shaded area = 64 - 16*pi

Area of the shaded area = 64 - 3.14*16 = 13.76

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3 years ago