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VMariaS [17]
3 years ago
9

how do i solve this equation, it is like terms. Please help! struggling with this just as much as i am in life. -9 - (12 - 3x)

Mathematics
2 answers:
sattari [20]3 years ago
5 0

Answer:

............you welcome..........

Annette [7]3 years ago
3 0
First you will open the bracket and since it is negative so you will change the sign
Therefore, -9-12+3x
= -21+3x should be the expression
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B) What should be added to –ab + bc + ca to get ab – bc - ca?​
Goryan [66]

Answer:

multiply the whole equation by -1

Step-by-step explanation:

it would look like

-1(–ab + bc + ca)

negatives multiplied make a positive and a negative and positive multiplied makes a negative so the end result is

ab – bc - ca

3 0
3 years ago
The coordinates of a rectangle are (3,0), (3,-5), (-4,0) and (-4,-5)
Nadya [2.5K]

Answer:

a. 7 units

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8 0
3 years ago
Find the value of x. A) 71 B) 72 C)73 D)75
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Answer:

C 73

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Read 2 more answers
A company makes paper labels for paint cans. As shown below, cach can is in the shape of a cylinder with a height of 9 cm and a
IgorC [24]

Given:

Height of cylinder, h = 9 cm

Radius, r = 3 cm

Total amount of paper the company has = 8138.88 cm²

Let's find the number of labels that can be made given that the label covers only the side.

Here, we are to apply the formula for the surface area of a cylinder.

We have:

SA=2\pi rh+2\pi r^2

The 2πr² represents the area of the top and bottom circle of the cylinder.

Since the label covers only the side, we are to exclude the 2πr².

Hence. we have:

SA_{label}=2\pi rh

WHere:

r = 3 cm

h = 9 cm

Thus, we have:

\begin{gathered} SA_{label}=2*3.14*3*9 \\  \\ SA_{label}=169.56\text{ cm}^2 \end{gathered}

Now, the number of labels they can make is:

\begin{gathered} \text{ number of labels = }\frac{8138.88\text{ cm}^2}{169.56\text{ cm}^2} \\  \\ \text{ number of labels = 48} \end{gathered}

Therefore, the company can make 48 labels.

ANSWER:

48 Labels

8 0
1 year ago
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