All categories

2 years ago

Solve for x. -3 + 8x - 5 = -8 A. -2 B. -1 C. - 3 4 D. 0

Mathematics

2 answers:

gregori [183]2 years ago

8 0

Answer:

Step-by-step explanation:

-3+5

-8+8x=-8

divide both sides by 8

x=0

Marat540 [252]2 years ago

3 0

Answer:

Step-by-step explanation:

You might be interested in

Fill in the blanks to make true number sentences.<br><br> 1 3/5 = __ : __

arsen [322]

Answer:

1 6/10

Step-by-step explanation:

you should first turn this fraction into a improper fraction

1 3/5= 8/5

now you multiply the denominator and the numerator by the same number, in this case i am using 2

8/5 times 2/2= 16/10 or 1 6/10

6 0

2 years ago

Find x for,<br> sin⁻¹ 4x + sin⁻¹ 3x = -<img src="https://tex.z-dn.net/?f=%5Cfrac%7B%5Cpi%20%7D%7B2%7D" id="TexFormula1" title="\

Novay_Z [31]

<h2>Explanation:</h2><h2></h2>

Let's solve this problem graphically. Here we have the following equation:

$sin^{-1}(4x) + sin^{-1}(3x) = -\frac{\pi}{2}$

So we can rewrite this as:

$f(x)=sin^{-1}(4x) + sin^{-1}(3x) \\ \\ g(x)= -\frac{\pi}{2}$

So the solution to the equation is the x-value at which the functions f and g intersect. In other words:

$f(x)=g(x) \\ \\ sin^{-1}(4x) + sin^{-1}(3x) = -\frac{\pi}{2}$

Using graphing calculator, we get that this value occurs at:

$\boxed{x=-0.2}$

3 0

3 years ago

28 people are going to the movies; they have 3 vans and 1 car.

svetoff [14.1K]

28 people going.....3 vans and 1 car....8 people per van
if there is 8 people per van, and there is 3 vans....8 * 3 = 24 people take the vans......leaving 28 - 24 = 4 people taking the car <==

8 0

3 years ago

Read 2 more answers

Solve for x. 3(3x - 1) + 2(3 - x) = 0

olga nikolaevna [1]

The equation given in the question is
3(3x - 1) + 2(3 - x) = 0
9x - 3 + 6 - 3x = 0
6x + 3 = 0
6x = - 3
x = - (3/6)
= - (1/2)
So the value of x as has been determined above is -1/2. I hope the procedure is clear enough for you to understand.<span>You can always use this method for solving problems that are similar in type without requiring any help from outside. </span>

8 0

3 years ago

Which of the expressions below can be factored using the difference of<br> squares method?

zlopas [31]

Answer:

<em>The second choice is correct. It can be factored as:</em>

$9x^2-16y^2=(3x-4y)(3x+4y)$

Step-by-step explanation:

<u>The Difference of Squares Method for Factoring</u>

The expression:

$a^2-b^2=(a-b)(a+b)$

Is a widely used method to factor binomials that are expressed as the subtraction of two perfect squares.

The condition for a binomial to be factored by using this method is that both terms must have an exact square root and they must be subtracted.

The last two choices are not valid because they are not a subtraction but an addition.

The first choice is not valid because none of the terms is a perfect square.

The second choice is correct. It can be factored as:

$9x^2-16y^2=(3x-4y)(3x+4y)$

4 0

2 years ago