All categories

3 years ago

3x+7=13 what's the answer?

Mathematics

2 answers:

Dafna11 [192]3 years ago

5 0

The first step to this is to subtract 7 from both sides. The +7 and -7 cancel each other out leaving you with 3x=6 then divide by 3 on each side giving you x=2.

lorasvet [3.4K]3 years ago

4 0

Its x=2
so easy!!!!!!!!!!!!!!

You might be interested in

PLZ HELP,ANSWER WHAT IS IN THE PICTURE

MrMuchimi

Answer: X'(-3, -2), Y'(-5, 1), and Z'(2, -3)

Step-by-step explanation:

Upon reflection across the x-axis, the x-coordinates remain the same while the signs of the y-coordinates flip. So, the coordinates will be X(3, -2), Y(5, 1), and Z(-2, -3).

Upon reflection across the y-axis, the signs of the x-coordinates will flip while the signs of the y-coordinates remain the same. So, the coordinates will be X′(-3, -2), Y′(-5, 1), and Z′(2, -3).

3 0

2 years ago

Damielos cheated and there is so much proof vvv

Nataliya [291]

Answer: sounds interesting

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Al and Bill each have two bullets. They fire alternately at a glass bottle. Al has hitting probability 1/3 and Bill 1/4. What is

enot [183]

P(Al hits bottle first time) = 1/3
P(Al misses the first shot but hits on his second shot) =
P( Al misses and bill misses and Al hits) = 2/3 * 3/4 * 1/3 = 1/6

So required probability = 1/3 + 1/6 = 1/2

8 0

3 years ago

The graph of the function g(x) = x2 + 3x - 4 is shifted 5 units to the left. Plot the zeros of the new function on the provided

Colt1911 [192]

<span>g(x) = x^2 + 3x - 4 (please be sure to use " ^ " to denote exponentiation).

This function factors into g(x) = (x+4)(x-1), and so the zeros are -4 and +1.

If we shift this graph 5 units to the left, we get h(x) = (x+5)^2 + 3(x+5) - 4.

The new zeros will be -4-5 and 1-5, or -9 and -4.

</span>

5 0

3 years ago

Solve for the missing side: simplify the radical

Viefleur [7K]

Answer:

$x=8\sqrt{5}$

Step-by-step explanation:

I will assume the following:

You know how to use the quadratic formula
You know how to simplify radicals
You know how to use the pythagorean theorem.

The challenge of this exercise comes from using the pythagorean theorem and setting up a few equations.

Given that we have a segment 36 units long and another segment that is 16, it is trivial to get the other segment, 20. Additionally, there are two sides that I want to name so that way I can make a couple of substitutions. I will call these side a and side b. (see attachment 1)

Now comes with setting up three equations. I will start with the two smaller triangles, using side a and side b. See attachments 2 and 3.

Now with the big triangle. I will set up one last equation. See attachment 4.

Given what we know about attachment 2 and 3, we can make two substitutions. See attachment 5. I assume you know how to do the rest and arrive at your only real solution.

5 0

2 years ago