All categories

2 years ago

40 points!!! please tell me how to do it not what the answer is :D

Mathematics

2 answers:

bearhunter [10]2 years ago

6 0

Answer:

see below

Step-by-step explanation:

-3z -( -z -2)

The first step is to distribute the minus sign

-3z --z --2

A negative negative is a positive

-3z +z +2

Then combine the like terms

-3z+z +2

Answer

-2z+2

Julli [10]2 years ago

5 0

Answer:

Step-by-step explanation:

You first distribute within the parentheses which is -(-z-2). This is going to make everything positive as everything in the parentheses is negative. You should get z+2. Next, you plug that back in. It should be-3z+z+2. You simplify to get -2z+2. Hope this helps!

You might be interested in

Do u know math?......<br><br>

Softa [21]

Answer

A. -128, 254, -508

5 0

2 years ago

Read 2 more answers

How do you multiply fractions with a whole number

Allisa [31]

You put the whole number on top of 1, it doesnt change its value. then you simplify across like in a butterfly only if needed then you multiply across from left to right.

5 0

2 years ago

Read 2 more answers

-5(x+2)+3x= Which expression can be written in the box on the other side of the equation

storchak [24]

Answer:

O-2(x+5)

Step-by-step explanation:

I have to much time on my hands

4 0

2 years ago

Read 2 more answers

Rafael writes an expression to represent “a number, n, decreased by thirty-one.” Then he evaluates that expression if n=29. Whic

yulyashka [42]

This is a subtraction expression.o evaluate, substitute 29 for the variable in the expression.to<span>evaluate the expression, subtract 31 from 29.</span>

3 0

2 years ago

Read 2 more answers

The question is below thanks

Paha777 [63]

Answer:

FH ~ 10.02

Step-by-step explanation:

1. Approach

One should first find the circumference of the given circle. Then one should find how large the fraction of the circumference one is supposed to find is. Finally, one should multiply the fraction of the circumference one is supposed to find by the total circumference.

2. Circumference of the circle

The formula for circumference is;

$2r$ π

Substitute in the given values;

It is given that the radius is, hence

2 (7) π

14π

3. Find the fraction of the circumference one is supposed to find

It is given that the angles over the measure of the total degrees of angles in a circle are equal to the arc surrounding the angles of the circumference. Essentially;

$\frac{angles}{360}=\frac{arc}{circumference}$

Substitute in the given information and solve;

$\frac{82}{360}=\frac{arc}{14pi}$

arc = $\frac{41}{180}*14pi$

arc = $\frac{287}{90}*pi$

arc ~ 10.02

3 0

2 years ago