3 years ago

Please help with 18 19 and 20

Mathematics

1 answer:

scoray [572]3 years ago

5 0

The answer to number 18 is Cassie

You might be interested in

What is the domain of \sqrt{4-6a}? PLS ANSWER SOON DUE TMRW

Igoryamba

Answer:

(−∞,2/3],{a∣a≤2/3}

<h2>Step-by-step explanation:</h2>

math

8 0

3 years ago

16. Solve -3x2 - 9x + 12 = 0.

AURORKA [14]

Given :

-3x² - 9x + 12 = 0

To find :-

Value of x .

Solution :-

Given equation ,

-( 3x² + 9x -12 ) = 0
3x² + 9x - 12 = 0
3x² + 12x - 3x - 12 = 0
3x ( x +4) -3( x +4) = 0
(3x -3)(x +4) = 0
x = 3/3 , -4
x = 1 , -4

7 0

3 years ago

How do you do this question

seropon [69]

$a = \sqrt{65} - 9$

$a = 8.06 - 9$

$a = -1.06$

$b = \sqrt{50} - 8$

$b = 7.07 - 8$

$b = -1.07$

A. is not true.

B. is true.

C. is not true.

D. is not true.

Hope it helped

BioTeacher101

7 0

3 years ago

Read 2 more answers

Below is a graph that represents the total profits for a third month. Write the equation of the line that represents this graph.

Delicious77 [7]

First you want to find the slope. Pick any two points. (150,200) and (300,100) x2-x1/y2-y1
300-150=150
100-200=-100
150/-100= -1.5
Y=mx+b. M is the slope b is the y intercept
Y=-1.5x+300

3 0

4 years ago

If a cone-shaped vase can hold 45 cubic centimeters of water and has a radius of 2 inches, what is the height of the vase? Use 3

Yuki888 [10]

Answer:

The correct answer is 10.75.

7 0

3 years ago