3 years ago

X/2+5x−7 when x=2. Solve please.

Mathematics

1 answer:

N76 [4]3 years ago

4 0

2/2+5(2)-7
1+10-7
11-7
4

You might be interested in

Mr.Chen left $45,000 to his aunt when he died. This was 5% of his total worth. a) how much was Mr.Chen worth when he died? Show

marysya [2.9K]

A) Mr Chen was worth:

45,000/5 = 9,000

9,000 x 100 = 900,000

The answer is 900,00

You can also write this as an equation.

3 0

3 years ago

kelly subscribes to a service called mysongs for downloading music she pays a $7 fee each month to download an unlimited numbers

Nastasia [14]

subtract the fee from the total to get the amount actually spent on songs

23.80-7 = 16.80

divide that amount by price per song to get number of songs downloaded

16.80 /0.20 = 84 songs

8 0

3 years ago

Evaluate -3.25 - 2.75z for z = -4.

Usimov [2.4K]

The answer is $7.75 -3.25-2.75x-4=$7.75

4 0

3 years ago

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre

kvasek [131]

Answer:

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

Step-by-step explanation:

To write this equation with h isolated, we cancel everything else on the right hand side of the equals sign. This means we cancel π and r².

Since both of these are attached to h by multiplication, we divide by both to cancel. We can divide by both at the same time:

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

7 0

3 years ago

Read 2 more answers

Two parallel lines are crossed by a transversal. What is the value of h? h = 60 h = 80 h = 100 h = 120

lisabon 2012 [21]

I added the diagram of the question.

Answer:
h = 60°

Explanation:
We are given that lines k and l are parallel lines.
This means that angles 120° and h are supplementary angles.
This means that their measures add up to 180°

Therefore:
180° = 120° + h
h = 180° - 120°
h = 60°

Hope this helps :)

8 0

3 years ago

Read 2 more answers