3 years ago

Please help i have so many timed quizzes

Mathematics

2 answers:

Elodia [21]3 years ago

7 0

I think it's 5.5x-9. I'm not sure though.

barxatty [35]3 years ago

5 0

5.5x+9

Trying to make my answer 20 characters

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3/4 page per 2 minutes how much of a page in 1 minute?

marishachu [46]

Answer:

3/8

Step-by-step explanation:

0.75/2=x/1. Solve proportion: 0.75*1/2=x x=0.375 or 3/8.

Hope this helps plz mark brainliest :D

8 0

3 years ago

Can u help me how to do this

Anna11 [10]

X=-18 that the answer

7 0

3 years ago

I will brainlist who can answer this 2 question!

LUCKY_DIMON [66]

Where’s the question?

3 0

2 years ago

A. 0 B. 1 C. 2 D. 3

zloy xaker [14]

-19 to -15 would be a positive 4 difference

19 to 15 = 4 this would be a -4 difference

3 to 7 is a positive 4 difference

-3 to 7 is a difference of 10

so there is 1 with a -4 difference
answer is B.

6 0

2 years ago

What are the exact solutions of x^2 − 3x − 7 = 0?

bulgar [2K]

Given:

The given equation is $x^{2} -3x-7=0$

We need to determine the exact solutions of the equation.

Exact solution:

The exact solution of the equation can be determined by solving the equation using quadratic formula,

$x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}$

From the equation the values are a = 1, b = -3 and c = -7

Thus, substituting these values in the equation, we get;

$x=\frac{-(-3) \pm \sqrt{3^2-4(1)(-7)}}{2(1)}$

$x=\frac{3 \pm \sqrt{9+28}}{2}$

$x=\frac{3 \pm \sqrt{37}}{2}$

Thus, the exact solutions of the given equation is $x=\frac{3 \pm \sqrt{37}}{2}$

Hence, Option A is the correct answer.

6 0

3 years ago