3 years ago

If m∠XWZ = 90, what is x?

Mathematics

1 answer:

satela [25.4K]3 years ago

4 0

Answer: x=11

Step-by-step explanation:

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What is 4/5 divided by 8

gladu [14]

(4/5) / 8....when ur dividing with fractions, flip what u r dividing by, then multiply

4/5 * 1/8 = 4/40 reduces to 1/10 <=

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3 years ago

The median of the values in a data set is y. If 48 were subtracted from each

3241004551 [841]

Answer:

Answer would be D.

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3 years ago

Help with 21 would be much appreciated.

umka2103 [35]

Answer:

$\large\boxed{x=2\sqrt{21}\ and\ y=4\sqrt3}$

Step-by-step explanation:

Look at the picture.

ΔADC and ΔCDB are similar. Therefore the sides are in proportion:

$\dfrac{AD}{CD}=\dfrac{CD}{DB}$

We have

$AD=14-8=6\\CD=y\\DB=8$

Substitute:

$\dfrac{6}{y}=\dfrac{y}{8}$ <em>cross multiply</em>

$y^2=(6)(8)$

$y^2=48\to y=\sqrt{48}\\\\y=\sqrt{16\cdot3}\\\\y=\sqrt{16}\ cdot\sqrt3\\\\\boxed{y=4\sqrt3}$

For x use the Pythagorean theorem:

$x^2=6^2+(4\sqrt3)^2\\\\x^2=36+48\\\\x^2=84\to x=\sqrt{84}\\\\x=\sqrt{4\cdot21}\\\\x=\sqrt4\cdot\sqrt{21}\\\\\boxed{x=2\sqrt{21}}$

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3 years ago

Which statement is true of z11.7?

Alexxx [7]

Answer

z11.7 is between 1 and 2 standard deviations of the mean.

Step-by-step explanation:

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3 years ago

What is the quotient of 3/4 divided by 1/5

Charra [1.4K]

Answer:

15/4

Step-by-step explanation:

3/4:1/5= 3/4*5= 15/4

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3 years ago