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3 years ago

5

the cost per month of one cell phone plan is $30 plus and additional nickel for each text. write an equation that defines the to

tal monthly cost,c, as a function of the number of taxts,t

1 answer:

storchak [24]3 years ago

7 0

Y= 5c + 30 would be it I believe

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Please help asap!!!!!!!!!!!

Bas_tet [7]

ANSWER

$16\pi \: sq.in$

EXPLANATION

The area of a sector is calculated using the formula,

$Area = \frac{arc \: measure}{360 \degree} \times \pi {r}^{2}$

The arc measure is given as 45°

The radius of the circle is 8 inches.

We substitute to obtain,

$Area = \frac{45 \degree}{360 \degree} \times \pi \times {8}^{2}$

$Area = \frac{1}{4} \times 64\pi = 16\pi$

7 0

3 years ago

Read 2 more answers

Solve the following equation by completing the square. 1/4x^2+x+1/4=0

fenix001 [56]

Answer:

D. X=-2+sqrt(3) or -2-sqrt(3)

$x_{1} =-2+\sqrt{3} \\x_{2} =-2-\sqrt{3}$

Step-by-step explanation:

Quadratic Equation given:

$\frac{1}{4} x^2+x+\frac{1}{4}=0$

In order to get rid of the fractions, multiply both sides by 4.

$\frac{1}{4}x^2\cdot \:4+x\cdot \:4+\frac{1}{4}\cdot \:4=0\cdot \:4$

We get:

$x^2+4x+1=0$

$x^2+4x+4-4+1=0$

Completing the square:

$(x+2)^2-4+1=0\\$

$(x+2)^2-3=0$

$(x+2)^2=3$

$x+2=\pm\sqrt{3}$

$x=-2\pm\sqrt{3}$

$x_{1} =-2+\sqrt{3} \\x_{2} =-2-\sqrt{3}$

8 0

3 years ago

Can 18/33 be simplified

oksian1 [2.3K]

Yes because both 18 and 33 are mulyiples of 3

18/33 = 6 / 11

8 0

3 years ago

Read 2 more answers

A snail travels at a rate of 2.15 feet per minute . Write a rule to describe the function. b. How far will the snail travel in 7

Jobisdone [24]

15.05 feet in 7 min

2.15 x 7 = 15.05

3 0

3 years ago

Read 2 more answers

a circular frame that is 3 inches wide surrounds the mirror what is the combined area, in square inches, of the circular mirror

NARA [144]

The answer is 2.25 square inches or 7.065 square inches.

3 0

3 years ago