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12345 [234]
3 years ago
5

Would someone help me with this question please?

Mathematics
2 answers:
sveta [45]3 years ago
7 0

Answer:

49

Step-by-step explanation:

umka2103 [35]3 years ago
5 0

Answer:

49

Step-by-step explanation:

Root is the opposite of a power of 2.

Find 7 to the power of 2 to find the number inside:

7^2 = 7 * 7 = 49

49 is your answer, or B)

~

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olganol [36]

Answer:

The actual building will be 7.5 m tall

Step-by-step explanation:

Given the scale model value of the building, we want to find the actual height of the building

From the scale model;

1 cm = 0.5m

Thus 15 cm will be 15 * 0.5 = 7.5 m

7 0
2 years ago
There are 99 males and 121 females participating in a marathon. What percent of the participants are female?​
ioda

To do this, we first want to see how many participants there are in total by adding both males and females.

99+121=220

Now we know that there were 220 total participants, but only 121 were females.

This allows us to set up the fraction 121/220= the percent female.

\frac{121}{220} =0.55

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8 0
3 years ago
This morning, the temperature was 80 ⁰F. It dropped 5 degrees per hour. In how many (h) hours did the temperature drop to at mos
Annette [7]

Answer: B or D

Step-by-step explanation:

5 times 8 (hours) is 40. Your input was correct, but you can try adding D too

6 0
3 years ago
Find the value for the side marked below.
KatRina [158]

Answer:

167.7

Step-by-step explanation:

210cos(37)=167.7134571

just type it in a calculator

7 0
3 years ago
-3x-(-2-4x) in simplest form
gogolik [260]

Answer:

-3+(2+4x)

combine like terms

-1+4x that's the answer

5 0
4 years ago
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