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choli [55]
2 years ago
10

What is the principal square root of 16? O A. 2 O B. -4 O C. -2 O D. 4

Mathematics
2 answers:
KATRIN_1 [288]2 years ago
7 0

Answer:

D. 4

Step-by-step explanation:

We know that the square of (+4) is 16 and also for (—4) is 16. We normally takes interest in positive square value for a square root. Therefore, The principal square root of 16 is 4

zmey [24]2 years ago
4 0

Yo se que es eso si no pues ni modo XD

D.4

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3 years ago
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Use the information to answer questions 8 and 9.
inessss [21]

Answer:

18

Step-by-step explanation:

the factors and prime factorization of 36 and 54. The biggest common factor number is the GCF number. So the greatest common factor 36 and 54 is 18.

8 0
3 years ago
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Anuta_ua [19.1K]

Answer:

no

Step-by-step explanation:

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4 0
3 years ago
CAN SOMEONE HELP ME WITH THESE TWO???!??!? PLEaSE????
Rzqust [24]

Answer:

7.A

8.D

Step-by-step explanation:

7 0
2 years ago
A chemist wishes to mix a 30% acid solution with a 65% acid solution to obtain 175 quarts of 55% acid solution . How many quarts
Eva8 [605]

x = quarts of 30% acid solution

y = quarts of 65% solution

x + y = 175

Each quart of the 30% solution contributes 0.30x quarts of acid; similarly, each quart of the 65% solution contributes 0.65y quarts of acid. So

0.3x + 0.65y = 0.55*175 = 96.25

That is, the chemist wants 175 quarts of a new mixture with a 55% concentration of acid, which comes out to 95.25 total quarts of acid. The total amounts of acid from either sides of this equation must balance out.

Now solve for x and y:

x + y = 175  ==>  y = 175 - x

0.3x + 0.65y = 96.25  ==>  0.3x + 0.65(175 - x) = 96.25

==>  0.3x + 113.75 - 0.65x = 96.25

==>  17.5 = 0.35x

==>  x = 50  ==>  y = 125

7 0
2 years ago
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