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Marta_Voda [28]
3 years ago
11

What is the value of x

Mathematics
1 answer:
Ivanshal [37]3 years ago
3 0

Answer:

  A.  4√3

Step-by-step explanation:

All of the right triangles in this geometry are similar, so the ratios of hypotenuse to short side are the same:

  (8+4)/x = x/4

  48 = x^2 . . . . . . . . . multiply by 4x

  √48 = 4√3 = x . . . . take the square root

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The ratio of boys to girls in a class is 3:5. There are 32 students in the class. How many more girls than boys are there?
Mandarinka [93]

Answer:

There are 8 more girls

Step-by-step explanation:

If you divide 32 by 8 (since the ratio is 3:5 which is 8 parts (3+5)). You get 4.

Thus, there are 12 boys and 20 because 3*4 is 12 and 5*4 is 20. 12+20 is 32.

6 0
3 years ago
Solve the equation<br> 15x+2=45x+4
BaLLatris [955]
15x + 2 = 45x + 4

Subtract 2 from both sides, as well as subtracting 45x from both sides.

15x - 45x = 4 - 2

-30x = 2

Divide both sides by -30.

x = 2/-30

x = - 1/15

~Hope I helped!~
5 0
3 years ago
Estimate the value of 9.9 power of 2 x 1.79 <br> pls some one help me
dybincka [34]

Answer:

The correct answer is 175.4379

Step-by-step explanation:

(9.9)^2 • 1.79

=98.01 • 1.79

=175.4379

3 0
3 years ago
4 / 7 * 2 / 3 * *9/16
lara31 [8.8K]

\bf \cfrac{4}{7}\cdot \cfrac{2}{3}\cdot \cfrac{9}{16}\implies \cfrac{4}{16}\cdot \cfrac{9}{3}\cdot \cfrac{2}{7}\implies \cfrac{1}{4}\cdot \cfrac{3}{1}\cdot \cfrac{2}{7}\implies \cfrac{1}{7}\cdot \cfrac{3}{1}\cdot \cfrac{2}{4}\implies \cfrac{1}{7}\cdot \cfrac{3}{1}\cdot \cfrac{1}{2}\\\\\\\cfrac{1\cdot 3\cdot 1}{7\cdot 1\cdot 2}\implies \cfrac{3}{14}

4 0
4 years ago
Please help! I would really appreciate it!!
Luda [366]

Answer:

Dunno wat that means im in elementary lel =]

But I know wat its like to not have an answer on a hard question =(

5 0
3 years ago
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