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3 years ago

A circle has the radius of 5 feet.what is the circumference of a bigger

Mathematics

1 answer:

DerKrebs [107]3 years ago

3 0

Answer:

12.5 feet

Step-by-step explanation:

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What is the perimeter 2x+3 as length and x-6 as width

Oduvanchick [21]

What is the perimeter 2x+3 as length and x-6 as width

P = 2L + 2W

P = 2(2x+3)+2(x-6)

P = 4x+6 + 2x - 12

P = 6x - 6

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Nancy is a telemarketer who calls 96 people each day. How many people will she call in a 5-day workweek?

ss7ja [257]

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3 years ago

A line passes through the points (5, –7.5) and has a y-intercept of 10. Which line has a rate of change that is less than this l

mafiozo [28]

It should be y=0.5x+10

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2 years ago

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Diego is solving the equation x^2-12x = 21

uysha [10]

Answer:

The solutions to the quadratic equations will be:

$x=\sqrt{57}+6,\:x=-\sqrt{57}+6$

Step-by-step explanation:

Given the expression

$x^2-12x\:=\:21$

Let us solve the equation by completing the square

$x^2-12x\:=\:21$

Add (-6)² to both sides

$x^2-12x+\left(-6\right)^2=21+\left(-6\right)^2$

simplify

$x^2-12x+\left(-6\right)^2=57$

Apply perfect square formula: (a-b)² = a²-2ab+b²

i.e.

$x^2-12x+\left(-6\right)^2=\left(x-6\right)^2$

so the expression becomes

$\left(x-6\right)^2=57$

$\mathrm{For\:}f^2\left(x\right)=a\mathrm{\:the\:solutions\:are\:}f\left(x\right)=\sqrt{a},\:-\sqrt{a}$

solve

$x-6=\sqrt{57}$

add 6 to both sides

$x-6+6=\sqrt{57}+6$

Simplify

$x=\sqrt{57}+6$

also solving

$x-6=-\sqrt{57}$

add 6 to both sides

$x-6+6=-\sqrt{57}+6$

Simplify

$x=-\sqrt{57}+6$

Therefore, the solutions to the quadratic equation will be:

$x=\sqrt{57}+6,\:x=-\sqrt{57}+6$

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2 years ago

What are whole numbers, integers, and rational numbers?

professor190 [17]

Answer:

Integers

Rational Numbers

Whole Numbers

In their respectful orders.

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3 years ago

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