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Flauer [41]
3 years ago
12

Simplify 3 x (7 - 2) + 6

Mathematics
1 answer:
Gnesinka [82]3 years ago
8 0
The answer is 21.

if u look at (7-2) that gives you 5 then 3x5 gives you 15 and then you add 15+6 to get your answer of 21.
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When constructing a perpendicular line through a point on a line, how can you verify that the lines constructed are perpendicula
aniked [119]

Answer:

C

Step-by-step explanation:

perpecndicular means they intersect in right angle which is 90°, no matter how long lines are.

7 0
3 years ago
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3 years ago
Find two equations with graphs that intersect at (3,-1)
AnnZ [28]

Answer:

y= 1x - 4

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7 0
3 years ago
How many places do you need to move the decimal to the left to write the number below in scientific notation?
bonufazy [111]

Answer:

A) 1.3*10¹

B)7*10⁰ - Actually I am not very sure if it is required to write 10⁰. I normally don't write 10⁰ (When I solve problems in physics if the answer for example is 7 I just write 7 not 7*10⁰). But if you check on Google 10⁰ has been mentioned

C)1.4*10¹

D)1.2*10¹

Step-by-step explanation:

For any number when you express it in a scientific notation, You should make sure that the number (for example : X) X which is going to be multiplied with a power of 10 (for example:10³,10⁴10¹⁰ etc), X should be between 1 and 10

This might sound very complicated so I can give you an example to simplify

Let's take 1.3*10¹

In this case X is 1.3

This means X*10¹

The number X is being multiplied with the power of 10(example:10¹,10²,10⁰,10⁹ ,etc) .In the above case X is being multiplied with 10¹.

Now this number X should be between 1 and 10.(Including 1)

Scientific notation= X*power of 10

where x>=1 & x<10

That is the explanation

Hope it helps

If you think my explanation is a bit complicated

you can ask me again

5 0
3 years ago
Can someone help me please with number 3?
Reil [10]

Answer:

The cost of 4 medium pizzas:

4 (x - 3)

Step-by-step explanation:

#3

x = the cost of a large pizza

medium pizza costs $3 less than a large pizza. So it's x - 3

If 4 medium pizzas then it will be: 4 (x - 3)

6 0
3 years ago
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