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adelina 88 [10]
3 years ago
13

Which statement is not always true?

Mathematics
1 answer:
Ede4ka [16]3 years ago
3 0

Answer:

its 2

Step-by-step explanation:

for a fact the product of two rational numbers is rational in that statement is always true

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Can you find both the value of x and y? It is a 30-60-90 triangle
Juli2301 [7.4K]

Answer:

x = 8*root3

y = 16

Step-by-step explanation:

You can use tangent and cosine of 60° to find x and y, BUT THERE'S A SHORTCUT. You pointed out that its a 30°-60°-90° triangle. That is a special right triangle. Here's the shortcut:

the longest side (hypotenuse) is double the shortest side. We have an 8 on the shortest side, so the hypotenuse (longest side) is 16. This ALWAYS works for 30°-60°-90° triangles!

Another shortcut:

The longer leg is the shorter leg × root3.

This ALWAYS works on 30°-60°-90° triangles.

So on your triangle, the short side is 8, that means the longer leg is 8×root3.

ta-daaaa!

3 0
2 years ago
Which is equivalent to -√10 3/4^x?
Galina-37 [17]

3√10^4x is equivalent to -√10 3/4^x and -4√10^3x they are all equivalent

4 0
3 years ago
Read 2 more answers
Find the standard deviation for the set of data.<br> {5,4, 18, 14, 22, 20, 6, 16, 12}
ira [324]
The Answer is 6.3245553203368.

Also if you can please answer my recent question.
That will Mean so much.
6 0
3 years ago
BRAINLIESSSSTTTT!!!
trapecia [35]
A. (-5,1)
B. (-5,4)
C. (-2,4)

6 0
3 years ago
If the mean of a given data set is 56 and the standard deviation is 10
aleksley [76]

Answer:

5.6 divided by  10

  =5.6

Step-by-step explanation:

5 0
3 years ago
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