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2 years ago

What the rate of change of the function y = 3/2x + 5?

Mathematics

1 answer:

AfilCa [17]2 years ago

6 0

Answer: 3/2

Step-by-step explanation: Rate of change is the same thing as the slope.

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If f(x) = х2 – 2х + 3, thеn find<br> f(-3).

exis [7]

Answer:

$\huge\boxed{\sf f(-3) = 18}$

Step-by-step explanation:

$\sf f(x) = x^2 - 2x + 3$

$\sf f(-3) = (-3)^2 -2(-3) + 3\\f(-3) = 9 + 6 + 3\\f(-3) = 18$

3 0

3 years ago

Avery got 18 questions correct out of 30 on the last quiz. Write the score in decimal form.

s344n2d4d5 [400]

Answer:

0.6

Step-by-step explanation:

1. Since Avery got 18 out of 30 questions right, we can write that as a fraction of $\frac{18}{30}$ .

2. $\frac{18}{30}$

3. $\frac{18}{30} = \frac{3}{5}$

4. $\frac{3}{5} = \frac{60}{100}$

5. $\frac{60}{100} = 0.6$

3 0

2 years ago

Read 2 more answers

Solve the following:<br> a) 4x 3= 2x + 7<br><br> b) 2x+6= 7x14

nikdorinn [45]

<h2><u>Correct question</u> : 4x - 3 = 2x + 7 </h2>

<h2><u>Solution</u> : 4x - 3 = 2x + 7 </h2>

$4x - 2x = 7 + 3 \\ \\ 2x = 10 \\ \\ x = \frac{10}{2} \\ \\ x = 5.$

<h2><u>Correct Question</u> : 2x + 6 = 7x - 14</h2>

<h2><u>Solution</u> : 2x + 6 = 7x - 14</h2>

$2x - 7x = - 14 - 6 \\ \\ - 5x = - 20 \\ \\ x = \frac{20}{5} \\ \\ x = 4.$

7 0

1 year ago

From previous polls, it is believed that 66% of likely voters prefer the incumbent. A new poll of 500 likely voters will be cond

Vladimir79 [104]

Answer:

The mean and standard deviation of the number preferring the incumbent is mean = 330, standard deviation = 10.59.

Step-by-step explanation:

We are given that From previous polls, it is believed that 66% of likely voters prefer the incumbent.

A new poll of 500 likely voters will be conducted. In the new poll the proportion favoring the incumbent has not changed.

Let p = probability of voters preferring the incumbent = 66%

n = number of voters polled = 500

<u>So, the mean of the number preferring the incumbent is given by;</u>

Mean = $n \times p$ = $500 \times 0.66$

= 330 voters

<u>And, standard deviation of the number preferring the incumbent is given by;</u>

Variance = $n \times p\times (1-p)$

= $500 \times 0.66 \times (1-0.66)$

= 112.2

So, Standard deviation = $\sqrt{Variance}$

= $\sqrt{112.2}$ = 10.59

7 0

2 years ago

3. Which rule represents a linear function? Check all

Nady [450]

The answer is C

The answer is C because the function form for a linear function is f(x) = ax+b and the answer C has x which is the slope and -3 which would represent the y-intercept also known as b

7 0

2 years ago