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3 years ago

8

The expression 4x gives the perimeter of a square with a side length of x units. what is the perimeter of a square with a side l

ength of 5/7 units?

1 answer:

egoroff_w [7]3 years ago

6 0

4(5/7) or 20/7 would be the perimiter

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One number is 7 more than another. The difference between their squares is 161. What are the numbers?

sergeinik [125]

X is 7 more than y
x>y then
difference betwen squares is 161 so

x=7+y
and
x²-y²=161

so
x=7+y
sub that for x in other equation

(7+y)²-y²=161
y²+14y+49-y²=161
14y+49=161
minus 49 both sides
14y=112
divide both sides by 14
y=8

sub back

x=7+y
x=7+8
x=15

the numbers are 15 and 8

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4 years ago

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How many solutions does 6x+ m15=6(x-3)

Andre45 [30]

Answer:

Step-by-step explanation:

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3 years ago

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Answer the circle question please.

makkiz [27]

$\frac{11}{-6}$

3 0

3 years ago

If f(x)=8-3|x+2|, find f(-6)

Dahasolnce [82]

To find f(-6), simply plug -6 in for x in the equation.
$f(x)=8-3|x+2|$
$f(-6)=8-3|-6+2|$
$f(-6)=8-3|-4|$
$f(-6)=8-3*4$
$f(-6)=-4$

Hope that helps!

5 0

3 years ago

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Which one is the correct one please

yan [13]

Answer:

The answer is 41

4² + 25

(4×4) + 25

16 + 25

41

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8 0

4 years ago

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