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3 years ago

The incenter is the center of the _______ circle of a triangle

Mathematics

1 answer:

blagie [28]3 years ago

5 0

Answer:

Step-by-step explanation:

An incircle is a circle inside a triangle that touches all three sides of the triangle.

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For f(x) = -5x + 4, what is the value of x for which f(x) = 20

Andru [333]

Answer:

- 3.2

Step-by-step explanation:

- 5x + 4 = 20

- 5x = 20 - 4

- 5x = 16

x = 16 / - 5

x = - 3.2

4 0

3 years ago

A survey found that 12 out of every 15 people in the United States prefer eating at a restaurant over cooking at home. if 400 pe

Snezhnost [94]

12 $x$ = 400

$x$ = $\frac{400}{12}$

15 $x$ = 15 * $\frac{400}{12}$

$x$ = 500.

∴ 500 people took the survey

5 0

3 years ago

Read 2 more answers

Vertex and axis of symmetry f(x)=2x^2-16x-17 PLEASE HELP

Law Incorporation [45]

The vertex is at (4, -49) and the axis of symmetry is at x= 4.

To find the vertex of this equation, use this method: $( \frac{-b}{2a})$

a=2
b=-16

This will help get your x value and the axis of symmetry. To find the y value of the vertex, insert the x value, 4 to get your y value, -49.

8 0

3 years ago

Stephanie surveyed the students in her class to find out their favorite color. her results are in the table. what percent of Ste

wariber [46]

Hi there!

To solve this problem, we need to find the amount of classmates out of the entire class who did not choose blue as their favorite color and then convert it into a percentage.

First, let's find the fraction:

Since there are 25 total people in her class, since

6 + 9 + 10 = 25

25 is the denominator of the fraction;

Since there are 16 people who did not choose blue,

6 + 10 = 16

16 is the numerator of the fraction.

So, our fraction is 16/25.

Now, we need to convert it into a percentage. To do this, we need to make the denominator 100 by multiplying it by a certain number, and then multiplying the numerator by that same number so the fraction stays equal:

16/25
= 16*4/25*4
= 64/100
= 64%

So, the answer is 64% of Stephanie's classmates.

Hope this helps!

3 0

3 years ago

The half-life of a certain radioactive material is 83 hours. An initial amount of the material has a mass of 67 kg. Write an exp

Anvisha [2.4K]

Answer:

Initial amount of the material is 67 kg
Hal-life is 83 hours

The required equation is:

m(x) = 67 * $(1/2)^{x/83}$ , where m- remaining amount of the radioactive material, x - number of hours

After 5 hours the material remains:

m(5) = 67 * $(1/2)^{5/83}$ = 64.260 (rounded)

4 0

2 years ago