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abruzzese [7]
3 years ago
15

For: 9 times the sum of 9b and 2

Mathematics
1 answer:
Sloan [31]3 years ago
6 0

Answer:

9(9b+2)

Step-by-step explanation:

The words 'the sum of' mean parenthesis.

And so 9 would be outside the parenthesis and then 9b and 2 would be inside.

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The height of Atlas V rocket used for space lifts was 205 feet. What is the height of a model of Atlas V rocket if the scale fac
KengaRu [80]

Answer: 6.4 feet

Step-by-step explanation:

Height of Atlas V rocket = 205 feet

Ratio of the model = 1:32 = 1/32

Model / Real = 1/32

Since Real height = 205, we put it into the equation and this will be:

Model / Real = 1/32

Model / 205 = 1/32

Model × 32 = 205 × 1

Model = 205/32

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The height of the model is 6.4 feet.

7 0
3 years ago
Pls help me find the operations of 3a^2+4a^2+7a^2​
Ber [7]

Answer:

14a^2

Step-by-step explanation:

3a^2+4a^2+7a^2

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7 0
3 years ago
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6x + 4y = -14<br> -X-5y=11
kumpel [21]

Answer:

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Step-by-step explanation:

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B:  -x-5y=11

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so   y= -2

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4 0
3 years ago
Richard makes 8 quarter-pound hamburgers on the grill. how many pounds of hamburger meat does he use?
Soloha48 [4]
Meat = 8 * 0.25 = 2 lb
8 0
3 years ago
A marble is selected from a bag, returned to the bag, and then a second marble is selected. Identify whether the events are inde
Inga [223]

Answer:

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6 0
4 years ago
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