3 years ago

Expand and simplify (1-5x)(1+5x)

Mathematics

2 answers:

Gnesinka [82]3 years ago

5 0

10.…….……......................

aleksley [76]3 years ago

4 0

1-25x^2 that is youre answer

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Answer:

120 miles

Step-by-step explanation:

30 miles per hour * 4 hours

120 miles

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3 years ago

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The radius of a circle is 17 inches. What is the circumference? Round your

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Step-by-step explanation:

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How to solve for -3x squared + 2y squared + 5xy - 2y + 5x squared - 3y squared when x = 0.5 and y = -1/10??

Pani-rosa [81]

Answer:

0.44

Step-by-step explanation:

-3x^2 + 2y^2 + 5xy - 2y +5x^2 - 3y^2

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2(0.5)^2 - 1(-0.1)^2 + 5(0.5)(-0.1) - 2(-0.1)

Simplify:

0.5 - 0.01 - 0.25 + 0.2

0.5 + 0.2 - 0.01 - 0.25

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3 years ago

C) Describe the relationship between E and K. What is the measure of K?

Rainbow [258]

Angles E and K are alternate exterior angles

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3 years ago

The total length of wires a b and c is 445 cm wire a is 45 cm longer then wire b and wire b is half as long as wire c how long i

Oksana_A [137]

Answer:

$a = 145\ cm$

Step-by-step explanation:

Given

$a + b + c = 445$

$a = 45 + b$

$b = \frac{1}{2}c$

Required

Determine the length of a

Solve for c in $b = \frac{1}{2}c$

$2 * b = \frac{1}{2}c * 2$

$2b = c$

$c = 2b$

Substitute $c = 2b$ and $a = 45 + b$ in $a + b + c = 445$

$a + b + c = 445$

$45 + b + b + 2b = 445$

$45 + 4b = 445$

Solve for 4b

$4b = 445 - 45$

$4b = 400$

Solve for b

$b = 400/4$

$b = 100$

Recall that: $a = 45 + b$

$a=45+100$

$a = 145\ cm$

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3 years ago