All categories

3 years ago

-6x + 8x = -46 A) -23 B) 3.2 C) 12 D) 16

Mathematics

2 answers:

Assoli18 [71]3 years ago

7 0

So the right answer is -23.

Nana76 [90]3 years ago

4 0

Answer:

x = -23

Step-by-step explanation:

to solve this kind of equation , you need to just follow the simple procedure

first consider the positive and negative signs and the next step is to collect the like terms then you divide by the coefficient of x

solution

-6x + 8x = -46

2x = -46

divide both sides by the coefficient of x which is 2

2x/2 = -46/2

x = -23

You might be interested in

Help Solve 10 12 − 3 8 . Show your solution as an equation.

ozzi

Say what now I hadn’t learned that yet omg I’m sry

8 0

3 years ago

A triangular prism has base that is a right triangle.

Schach [20]

The dimensions can vary. Here is a picture of a triangular prism with a right-triangle base.

3 0

3 years ago

A) The coefficient in the expression -3x + 1 is

mihalych1998 [28]

Step-by-step explanation:

A coefficent is a numerical or constant quantity placed before and multiplying the variable in an algebraic expression. Or in other words, the number being multiplied with the variable. For example, the 4 in 4x.

The expression is -3x + 1. If we go back to the definition, the coefficient is the number combined with the variable.

So the answer is -3.

Hope it helps!

3 0

3 years ago

A sphere and a cylinder have the same radius and height. The volume of the cylinder is 21m. what is the volume of the sphere.

Goshia [24]

Answer:

The volume of the sphere is 14m³

Step-by-step explanation:

Given

Volume of the cylinder = $21m^3$

Required

Volume of the sphere

Given that the volume of the cylinder is 21, the first step is to solve for the radius of the cylinder;

Using the volume formula of a cylinder

The formula goes thus

$V = \pi r^2h$

Substitute 21 for V; this gives

$21 = \pi r^2h$

Divide both sides by h

$\frac{21}{h} = \frac{\pi r^2h}{h}$

$\frac{21}{h} = \pi r^2$

The next step is to solve for the volume of the sphere using the following formula;

$V = \frac{4}{3}\pi r^3$

Divide both sides by r

$\frac{V}{r} = \frac{4}{3r}\pi r^3$

Expand Expression

$\frac{V}{r} = \frac{4}{3}\pi r^2$

Substitute $\frac{21}{h} = \pi r^2$

$\frac{V}{r} = \frac{4}{3} * \frac{21}{h}$

$\frac{V}{r} = \frac{84}{3h}$

$\frac{V}{r} = \frac{28}{h}$

Multiply both sided by r

$r * \frac{V}{r} = \frac{28}{h} * r$

$V = \frac{28r}{h}$ ------ equation 1

From the question, we were given that the height of the cylinder and the sphere have equal value;

This implies that the height of the cylinder equals the diameter of the sphere. In other words

$h = D$ , where D represents diameter of the sphere

Recall that $D = 2r$

So, $h = D = 2r$

$h = 2r$

Substitute 2r for h in equation 1

$V = \frac{28r}{2r}$

$V = \frac{28}{2}$

$V = 14$

Hence, the volume of the sphere is 14m³

4 0

3 years ago

Read 2 more answers

What’s 4+5+6+7+8. Plzzzzzzzz

irina1246 [14]

It's 30

Hope that helped!

8 0

3 years ago

Read 2 more answers