Which equation is a direct variation function? O y=x O y = x + 2 O y=& Oy=4

HELP me with These questions

Feliz [49]

Answer: 13.96 in²

Step-by-step explanation:

radius (r)

d = 2r

16 = 2r

8 = r

angle in radians (θ)

$\frac{180}{\pi} =\frac{25}{\theta}$

180(θ) = 25(π)

θ = $\frac{25}{180}\pi$

θ = $\frac{5}{36}\pi$

Area (A)

A = $\frac{1}{2}$ r² θ

= $\frac{1}{2}(8)^{2}(\frac{5}{36}\pi)$

= $\frac{40}{9}\pi$

= 13.96

*************************************************************************

Answer: 12π

Step-by-step explanation:

s = rθ

= 60 $(\frac{\pi }{5})$

= 12π

*************************************************************************

Answer: 22.440 cm²

Step-by-step explanation:

A = $\frac{1}{2}$ r²θ

= $\frac{1}{2}$ (10)² $(\frac{\pi} {7})$

= $\frac{50}{7}\pi$

= 22.440

*************************************************************************

Answer: 270°, 630°, -450°, -810°

Step-by-step explanation:

positive: -90 + 360 = 270

270 + 360 = 630

negative: -90 - 360 = -450

-450 - 360 = -810

*************************************************************************

Answer: $\frac{3\pi} {4}$

Step-by-step explanation:

$\frac{19\pi} {4} - 2\pi$

= $\frac{19\pi} {4} - \frac{8\pi} {4}$

= $\frac{11\pi} {4}$

$\frac{11\pi}{4} - 2\pi$

= $\frac{11\pi} {4} - \frac{8\pi} {4}$

= $\frac{3\pi} {4}$

If you subtract another 2π, you will end up with a negative value. The question asks for the smallest positive value.

5 0

4 years ago

Given m ||n, find the value of x 167°

frutty [35]

Answer:

13

Step-by-step explanation:

180-167= 13

× = 13 degrees

7 0

3 years ago

If 25% of a number p is 19, what is 15 of p

larisa86 [58]

Answer:

19.7%

Step-by-step explanation:

5 0

3 years ago

Use the following trinomial to answer the questions. x^2-6x-27 When going through the process of determining the factors, the tw

Sauron [17]

Answer:

The factors are 3 and -9

Step-by-step explanation:

The given trinomial is $x^2-6x-27$ .

We need to find two factors. We know that,

3(9) = 27

So,

$x^2-6x-27$ can be written as :

$x^2+3x-9x-27$ as two factors add up to get -6 and multiply to get -27.

Hence, the factors are 3 and -9.

5 0

3 years ago

What is 4.908 in expanded form

velikii [3]

Answer:

4.908

Step-by-step explanation:

Expanded Notation Form:

4

+ 0.9

+ 0.00

+ 0.008

Expanded Factors Form:

4 × 1

+ 9 × 0.1

+ 0 × 0.01

+ 8 × 0.001

Expanded Exponential Form:

4 × 100

+ 9 × 10-1

+ 0 × 10-2

+ 8 × 10-3

Word Form:

four and nine hundred eight thousandths

3 0

3 years ago