4 years ago

If x divided 9=9 how do u know what x is

Mathematics

2 answers:

Liono4ka [1.6K]4 years ago

8 0

Algebra:
x = 9 Multiply both sides of the equation by 9 to keep them equal.
__
9

x*9 = 9*9 What is 9*9?
___
9

x = 9*9

Volgvan4 years ago

7 0

X is 1 because if you times it by x it equals it number

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Help plssss and thank you

dimaraw [331]

Answer:

$y=\frac{1}{4}x +3$

Step-by-step explanation:

slope (rise over run) choose 2 points that are easy to figure out. Count up and over to get the slope

(0,3) and (4,4)

3 to 4 is 1

0 to 4 is 4

slope is 1/4

y intercept is b- so +3

y= $y=\frac{1}{4} x+3$

5 0

3 years ago

Cho tam giác ABC đều cạnh a. Khi đó <br> vectorAb+vectorAC  bằng:

Nikolay [14]

Answer:

a $\sqrt{3}$

Step-by-step explanation:

6 0

3 years ago

What is the solution set of the equation 30/x^2-9 +1=5/x-3

gizmo_the_mogwai [7]

$\frac{30}{x^{2} - 9 + 1} = \frac{5}{x - 3} \\\frac{30}{x^{2} - 8} = \frac{5}{x - 3} \\5(x^{2} - 8) = 30(x - 3) \\5(x^{2}) - 5(8) = 30(x) - 30(3) \\5x^{2} - 40 = 30x - 90 \\5x^{2} + 50 = 30x \\5x^{2} - 30x + 50 = 0 \\5(x^{2}) - 5(6x) + 5(10) = 0 \\5(x^{2} - 6x + 10) = 0 \\\frac{5(x^{2} - 6x + 10)}{5} = \frac{0}{5} \\x^{2} - 6x + 10 = 0 \\x = \frac{-(-6) \± \sqrt{(-6)^{2} - 4(1)(10)}}{2(1)} \\x = \frac{6 \± \sqrt{36 - 40}}{2} \\x = \frac{6 \± \sqrt{-4}}{2} \\x = \frac{6 \± 2i}{2} \\x = 3 \± i \\x = 3 + i\ or\ x = 3 - i$

The answer is D.

8 0

3 years ago

Read 2 more answers

If I gave you the ratio of 15:24 and told you that it had to do with the number of students in a class, what are 2 different pos

Vanyuwa [196]

15:24 could represent how many 11 year olds are in the class over all.

Or it could represent how many girls are in the class over all.

8 0

3 years ago

Please welp me I need help

Thepotemich [5.8K]

It would be 18 have a great day