Which statement is true about the difference 2 square root of 7 − square root of 28 ?

Mathematics

1 answer:

boyakko [2]3 years ago

5 0

I'll go slow:

$2\sqrt 7 - \sqrt{28}$

$=2 \sqrt 7 - \sqrt{4 \cdot 7}$

$=2 \sqrt 7 - \sqrt{4} \cdot \sqrt{7}$

$=2 \sqrt7 - 2 \sqrt 7$

$=0$

Answer: B rational and equal to 0.

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Each employee in a company is either right-handed or left-handed.

Evgesh-ka [11]

Answer:

23 females are right handed and 9 are left handed

Step-by-step explanation:

So to get this answer :

18 OF THE 41 RIGHT HANDED EMPLOYEES ARE MALE.

The statement means that there are 41 right handed employees and 18 of those are male thus the remaining are FEMALE.

To find the number of right handed employees who are female just subtracted 18 from 41 ( becaus etotal number of right handed males is 18 and the total number of right handed employees is 41.)

SO 23 FEMALES IN THE COMPANY ARE RIGHT HANDED.

Because 23 females are right handed that means to get the number of left handed females you subtract the total number of right handed females from the total number of females in the company THUS:

32 - 23 = 9 LEFT HANDED FEMALES

HOPE IT HELPED

5 0

3 years ago

slava [35]

Answer:

The building's shadow is 50 ft

Step-by-step explanation:

$\frac{6}{2.5} =\frac{120}{x} \\\\6x=300\\x=50$