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3 years ago

Help thanks 5/6 ÷ 10/21 (show ur work)

Mathematics

1 answer:

Alekssandra [29.7K]3 years ago

5 0

Answer:

7/4

Step-by-step explanation:

5/6 divided by 10/21,

get the reciprocal of 10/21

reciprocal of 10/21=21/10

now.

5/6 x 21/10

5 x 21= 105

6 x 10 = 60

so, 105/60

and the simplest form of 105/60 is 7/4

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What is the square root of 64 over 225 with a negative outside of the radical?

irinina [24]

The square root of (64/225) is the same as √64 / √225 .
That could make the whole thing easier.

Do you know what either of those separate square roots is ?

You're right ! I'm so impressed!
The square root of 64 IS 8, and the square root of 225 surely is 15 .
You really know your stuff !

So now, the expression is √64 / √225 = 8 / 15 .

Oh, I almost forgot, it has a negative sign before it. OK,so the answer is - 8/15 .

5 0

3 years ago

△BCD is a right triangle. The length of the hypotenuse is 18 centimeters. The length of one of the legs is 14 centimeters. Wha

Romashka-Z-Leto [24]

Answer:

The answer to your question is b = 11.31 cm or 8 $\sqrt{2}$ cm

Step-by-step explanation:

Data

hypotenuse = 18 cm

one leg = 14 cm

second leg = ?

Process

1.- Use the Pythagorean Theorem to solve this problem

c² = a² + b²

c = hypotenuse

a = longer leg

b= shorter leg

2.- Substitution

18² = 14² + b²

-Solve for b

b² = 18² - 14²

-Simplify

b² = 324 - 196

b² = 128

-Find the prime factors of 128

128 2

64 2

32 2

16 2

8 2

4 2

2 2

128 = 2⁶2¹

-Result

b = 11.31 or 8 $\sqrt{2}$

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3 years ago

What is 2/3+1/2 equal to

Ahat [919]

2/3 + 1/2 is 7/6
Hope this helps!

5 0

3 years ago

Read 2 more answers

Let f(x) = 6x2 + 5 and g(x) = 3x - 5. Find g(f(0)). A) 10 B) 75 C) 90 D) 155

Kitty [74]

Answer:

Step-by-step explanation:

evaluate f(0) then substitute value into g(x)

f(0) = 0 + 5 = 5

g(5) = (3 × 5) - 5 = 15 - 5 = 10 → A

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3 years ago

What is the value of 2x2 + 3x + 12, when x = 7?

Flura [38]

It would be 4+21+12 = 37

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3 years ago