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2 years ago

What is the length of the line? Choose 1 answer: PLS HELP! WILL GIVE BRAINLIEST!

Mathematics

1 answer:

Sergeeva-Olga [200]2 years ago

5 0

Answer:

6 ?

Step-by-step explanation:

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Answer this for me and I will follow you on TikTok or any social media

Masja [62]

Answer:

Step-by-step explanation:

6) 15 + 2x = 75 Check: 15 + 2x = 75

2x = 75 - 15 15 + 2*30 = 75

2x = 60 15 + 60 = 75

x = 60/2 75 = 75

x = 30

7) m/3 - 14 = 10

m/3= 10 + 14

m/3 = 24

m = 24 *3

m = 72

4 0

2 years ago

Read 2 more answers

Find the roots of this equation 7xsquare - 5x - 2 = 0

Sophie [7]

Answer:

x = 1, -2/7

Step-by-step explanation:

You could use the quadratic equation but this can be factored into

(7x + 2) (x - 1). You can verify that by multiplying it out.

Since (7x + 2) (x - 1) = 0, if either factor is 0 then the equation would be equal to 0, thus we get x = 1, -2/7

7 0

2 years ago

Find the average rate of change of f(x) = 4x² – 3 from 3 to 9.

Lina20 [59]

Answer:

Step-by-step explanation:

Given:

$f(x) = 4x^2 - 3$

Required:

Average range of change from 3 to 9

SOLUTION:

Step 1:

Find f(3) and f(9):

To find f(3), replace x with 3 in the given function

$f(3) = 4(3)^2 - 3$

$f(3) = 4(9) - 3$

$f(3) = 36 - 3$

$f(3) = 33$

To find f(9), replace x with 9 in the given function

$f(9) = 4(9)^2 - 3$

$f(9) = 4(81) - 3$

$f(9) = 324 - 3$

$f(9) = 321$

Average rate of change = $\frac{f(b) - f(a)}{b - a}$

Where,

$a = 3, f(a) = 33$

$b = 9, f(b) = 321$

Plug in the values into the formula for average rate of change.

$= \frac{321 - 33}{9 - 3}$

$= \frac{288}{6}$

$= 44$

Average rate of change = 44

3 0

2 years ago

A set of data is normally distributed with a mean of 75 and a standard deviation of 3. What percent of the data is in the

lord [1]

Answer:

Step-by-step explanation:

8 0

2 years ago

I need help i'll give u Brainliest<br> if u correct.

kifflom [539]

Answer:

30$ sales tax, 460$ Total

Step-by-step explanation:

7% of 430 is 30.1, after rounding it’s 30, and 430 plus 30 is 460.

You’re welcome

3 0

2 years ago