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ivann1987 [24]
4 years ago
9

Need help on math question 20 points and brainlest

Mathematics
2 answers:
CaHeK987 [17]4 years ago
6 0

Answer:

3.75 cm

Step-by-step explanation:

iris [78.8K]4 years ago
3 0

Answer:

Im pretty sure the answer is 3.75

Im im wrong im sorry

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lana [24]

The two figures are similar because if you take each side length of figure O and multiply it by three, they equal the side lengths of A.

6 0
3 years ago
Read 2 more answers
Please help thank you.
Mnenie [13.5K]

Answer:

Option D

Step-by-step explanation:

Whenever we take a square root of a number the ± sign is with it like here in the question

x^2=20\\\\Apply\ square\ root\ on\ both\ sides\\sqrt{x^2}=\sqrt{20}  \\\\The\ square\ cancels\ out\ with\ the\ root\x=\sqrt{20}

And then x = ±4.47 which means x has two values one is +4.47 and the other is -4.47 so Option D is our answer.

7 0
3 years ago
The boiling temperature (in degrees Celsius) of platinum is 199 more than four times the boiling temperature $z$ (in degrees Cel
Zolol [24]
The correct answer is letter C
5 0
3 years ago
Write each percent increase or decrease as a percentage of the initial amount. The first one is done for you.
olya-2409 [2.1K]

Answer:

This amount of sunny days this year is 75% of the amount of sunny days last year.

Step-by-step explanation:

5 0
3 years ago
In a seminar, the number of participants in German, English and French are 204, 120 and 168 respectively. Find the numbers of ro
postnew [5]
\bf \stackrel{German}{204}\qquad \stackrel{English}{120}\qquad \stackrel{French}{168}

now, if we a "prime factoring" of each number, we get

204 = 2*2*3*17

120 = 2*2*2*3*5

168 = 2*2*2*3*7

now, notice the GCD for all three is that common bolded values, namely 2*2*3, or 12, so each room will house 12 participants,

now, how many rooms for all German?  204 ÷ 12, or 17 rooms.

how many rooms for all English ones?  120 ÷ 12, or 10 rooms.

how many rooms for the French ones?  168 ÷ 12, or 14 rooms.

so the total amount of rooms for all of them is 17 + 10 + 14.
3 0
3 years ago
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