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Andreyy89
2 years ago
13

Please help. I will reward brainly

Mathematics
2 answers:
katovenus [111]2 years ago
8 0

Positive, 72 minus negative 9 is the same thing as 72+9, which equals 81. So the answer is positive

Nezavi [6.7K]2 years ago
3 0
Positive. Here's a trick I use.

- + = -
- - = +

You need two lines to make a +, and you can't make one with just -
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Some of the children at a school arrrive by car.
dedylja [7]

Answer:

0.36

Step-by-step explanation:

Percentage of boys = 60%

Percentage of girls = 100 - 60 = 40%

Percentage of boys that arrive by car

= 20% of 60%

= 0.2 x 60 = 12%

Percentage of girls that arrive by car

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= 0.6 x 40

= 24%

Total Percentage of children arrive by car

= 12 + 24

= 36%

P(Arrive by car)

= 36%

= 0.36

5 0
3 years ago
Need help solving this problem
dimulka [17.4K]

Answer:

17 i think

Step-by-step explanation:

4 0
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qwelly [4]
9x^2-49
It equals:
<span>(<span><span>3x</span>+7</span>)</span><span>(<span><span>3x</span>−7</span><span>)
Hope this helps!
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7 0
3 years ago
Read 2 more answers
SIMPLIFY<br> 7x to the power of 2 + 6x + 9x to the power of 2 - 5x
Marizza181 [45]
7x^2+6x+9x^2-5x=(7x^2+9x^2)+(6x-5x)=16x^2+x
4 0
3 years ago
Solve for x. Round your answer to the nearest hundredth.<br><br> 16^x-7=19
Finger [1]

Answer:

x=26 is the answer

Step-by-step explanation:

4 0
3 years ago
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