Which shapes have parallel sides? Choose ALL the correct answers.

Mathematics

1 answer:

ella [17]3 years ago

4 0

Answer:

the green one for sure..

Step-by-step explanation:

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) Jess has saved dimes ($ 0.10) and quarters ($ 0.25) in their piggy bank. Define the variables and write a

Mamont248 [21]

Answer:

Quarters = 10

Dimes = 15

Step-by-step explanation:

d = number of dimes, q = number of quarters

d + q = 25 is the equation for number of coins

0.1d + 0.25q = 4 is the equation for value of coins

First, solve for d in terms of q:

d + q = 25

d = 25 - q

Then substitute that into the other equation:

0.1(25 - q) + 0.25q = 4

2.5 - 0.1q + 0.25q = 4

0.15q = 1.5

q = 10

And back to d = 25 - q, d = 25 - 10 = 15

Check the math:

0.1(15) + 10(0.25) = 1.5 + 2.5 = 4

LMK if you have questions

4 0

3 years ago

What is the value of for x = 2 and y = –4?

Serggg [28]

Remember
x^-m=1/(x^m)

x=2
y=-4
$\frac{1}{(2^{-2})(x^{-3})(y^{5})}$

$\frac{1}{(2^{-2})((2)^{-3})((-4)^{5})}$

$\frac{1}{(1/(2^{2}))(1/(2^{3})(-1024)}$

$\frac{1}{(1/(4))(1/(8)(-1024)}$

$\frac{1}{(1/(32))(-1024)}$

$\frac{1}{-1024/(32)}$

-1/32 is result

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3 years ago

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1+(-2)+(-3) =<br> -<br> Simplify the expression

sveta [45]

Answer: -4

Step-by-step explanation:

negatives are basically just 1-2-3

8 0

3 years ago

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Use quadratic formula to find the solutions to 3x^2 - 10x + 5 =0