The diagram below shows 4-sided shape categories that flow from one to another.

19 is 50% of what number?

Sonja [21]

Answer:

38

Step-by-step explanation:

Step 1: Change words into an expression

19 is %50 of what number

19 * 2

38

Answer: 38

5 0

3 years ago

Read 2 more answers

If anyone needs help I Can help you

Nadya [2.5K]

I'll help. I love helping people

8 0

3 years ago

Resolve the expression <img src="https://tex.z-dn.net/?f=%5Cfrac%7B%28x-2%29%7D%7B%28x%5E%7B2%7D%20%2B1%29%28x-1%29%5E%7B2%7D%20

Llana [10]

The partial fraction expansion will look like

(x - 2)/((x ² + 1) (x - 1)²) = (ax + b)/(x ² + 1) + c/(x - 1) + d/(x - 1)²

Get everything in terms of a common denominator, and compare the numerators on both sides:

x - 2 = (ax + b) (x - 1)² + c (x ² + 1) (x - 1) + d (x ² + 1)

Expand the right side:

x - 2 = (ax + b) (x - 1)² + c (x ² + 1) (x - 1) + d (x ² + 1)

x - 2 = (a + c) x ³ + (-2a + b - c + d) x ² + (a - 2b + c) x + b - c + d

Match up the coefficients and solve the resulting system of equations:

a + c = 0

-2a + b - c + d = 0

a - 2b + c = 1

b - c + d = -2

==> a = -1, b = -1/2, c = 1, d = -1/2

So the expansion into partial fractions is

(x - 2)/((x ² + 1) (x - 1)²) = (-x - 1/2)/(x ² + 1) + 1/(x - 1) - 1/(2 (x - 1)²)

… = -(2x + 1)/(2 (x ² + 1)) + 1/(x - 1) - 1/(2 (x - 1)²)

5 0

3 years ago

A theater company charges $9.50 per ticket for people of all age groups. If c represents the total number of children who bought

n200080 [17]

The best expression would be 9.50c + 9.50a.

8 0

4 years ago

Help me on this please

MrRa [10]

<h2>Writing an linear equation from a given scenario</h2>

Answer:

Choice B

<h3>Step-by-step explanation:</h3>

Please refer to my answer from this question to know more about writing a linear equation from a given scenario: brainly.com/question/24599307

Scenario: A submarine dives $70$ feet per minute.

We let $f$ , be the position of the submarine from sea level as a function of $t$ , the time (in minutes) since the submarine dived.

The given scenario states that for every minute, the position of the submarine decreases (because the submarine is going in a downward direction) by $70$ feet. So $f(t)$ can be defined as $-70t$ .

Now we can select two points for the graph. We can select points $(1, f(1))$ and $(2, f(2))$ .

Evaluation of function:

$f(1) = -70(1) \\ f(1) = -70$

$f(2) = -70(2) \\ f(2) = -140$

Our points are $(1, -70)$ and $(2, -140)$

Choice A doesn't touch our chosen points. In Choice C, it would be the case if the submarine is going in upward direct.

So the correct graph is Choice B.

5 0

3 years ago