All categories

2 years ago

Evalvate functions helppp!?

Mathematics

1 answer:

AURORKA [14]2 years ago

6 0

The answer is 19.. substitute -1 into the function whenever you see x put -1 there. This implies that 3+16 =19

You might be interested in

What is the slope of the line that passes through the given points: (-2,8) and (4,6)?

garri49 [273]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

Let's find the slope :

taking :

$y_2 = 6$

$y_1 = 8$

$x_2 = 4$

$x_1 = - 2$

now, we know the formula to find the slope, that is :

$\dfrac{y_2 - y_1}{x_2 -x_1 }$

$\dfrac{6 - 8}{4 - ( - 2)}$

$\dfrac{ - 2}{ 6}$

$- \dfrac{ 1}{3}$

3 0

2 years ago

Read 2 more answers

1. The amount of money Travis earns is given in the table.

Anastaziya [24]

Answer:

$250

Step-by-step explanation:

The numbers in the table indicate a proportional relationship between earnings and hours worked. Among other things, that means you can find the earnings for 20 hours by using any table values that sum to 20 hours.

For example, 9 hours + 11 hours = 20 hours, so the earnings would be ...

$112.50 +137.50 = $250.00 . . . for 20 hours

You could also use 4×5 hours = 20 hours, so ...

4×$62.50 = $250 . . . for 20 hours

Or, you can figure ...

$37.50/(3 h) = $12.50/h

so the pay for 20 hours is ...

(20 h)×($12.50/h) = $250.00

3 0

2 years ago

Read 2 more answers

2 + 2 also im giving away a free 45 points so answer quickly :D

Deffense [45]

Answer:

2+2=4

Step-by-step explanation:

Thank you so much for the points! :)

6 0

2 years ago

Read 2 more answers

Help the question is in the picture

Vera_Pavlovna [14]

Answer:

two

Step-by-step explanation:

due to the cordnets of eqation

6 0

2 years ago

Read 2 more answers

Find the exact values of sin2 θ for cos θ = 3/18 on the interval 0° ≤ θ ≤ 90°

mote1985 [20]

Answer:

$sin(2\theta)=\frac{\sqrt{35} }{18}$

Step-by-step explanation:

Recall the formula for the sine of the double angle:

$sin(2\theta)=2*sin(\theta)*cos(\theta)$

we know that $cos(\theta)=\frac{3}{18}$ , and that $\theta$ is in the interval between 0 and 90 degrees, where both the functions sine and cosine are non-negative numbers. Based on such, we can find using the Pythagorean trigonometric property that relates sine and cosine of the same angle, what $sin(\theta)$ is:

$cos^2(\theta)+sin^2(\theta)=1\\sin^2(\theta)=1-cos^2(\theta)\\sin(\theta)=\sqrt{1-cos^2(\theta)} \\sin(\theta)=\sqrt{1-(\frac{3}{18} )^2}\\sin(\theta)=\sqrt{1-\frac{9}{324} }\\sin(\theta)=\sqrt{\frac{324-9}{324} }\\sin(\theta)=\sqrt{\frac{315}{324} }\\\\sin(\theta)=\frac{3}{18}\sqrt{35 }$

With this information, we can now complete the value of the sine of the double angle requested:

$sin(2\theta)=2*sin(\theta)*cos(\theta)\\sin(2\theta)=2*\frac{3}{18} \,\sqrt{35} \,\frac{3}{18}\\sin(2\theta)=\frac{2*3*3}{18*18}\,\sqrt{35} \\sin(2\theta)=\frac{\sqrt{35} }{18}$

6 0

2 years ago