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4 years ago

FIND X!!!!!!!!!!!!?!!!?!!,!?

Mathematics

2 answers:

jasenka [17]4 years ago

7 0

The hypotenuse is twice the short leg. The answer is 8

anastassius [24]4 years ago

7 0

Answer:

Step-by-step explanation:

Sin(30) = 4/x

Multiply x by both sides

Sin(30) (x) = 4

Then divide sin(30)

X= 4/sin(30)

Put 4/sin(30) into calculator to get 8

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What are the dimensions for this triangle?

REY [17]

Answer:

2 and 2

Step-by-step explanation:

Parallel sides of rectangles are congruent, and because the other side of both rectangles is 2, the sides of the triangle are 2 because they share the side with the rectangle.

4 0

4 years ago

Triangle abc is equal to triangle pqr, angle p=8x+4, angle a=5x+16 , and angle q=10x+2. find angle r

saul85 [17]

Answer: b.not enough info

Step-by-step explanation:

Corresponding angles of congruent triangles are congruent, so $\angle A =\angle P$

However, we don't have all 3 interior angles of either triangle, so we cannot conclude anything.

8 0

2 years ago

Which values for x and y make the statement (x + 5)(y - 6) = 0 true?

-BARSIC- [3]

$||Solving \ for \ x. ||$ 

$(x + 5)(y - 6) = 0$

$(x + 5)(y - 6) = 0 :x$

$
x+5=0
 
$ $|Divide \ both \ sides \ by \ y-6|$

$
x=-5
 
$ $|Subtract \ 5 \ from \ both \ sides|$

$||Solving \ for \ y. ||$

$
y-6=0
 
$ $|Divide \ both \ sides \ by \ x+5|$

$
y=6
 
$

$Solution =\ \textgreater \ x = -5, y = 6$

6 0

3 years ago

What does standard deviation mean?

Sveta_85 [38]

Standard deviation is: It is a measure of how spread out numbers are. It is the square root of the Variance, and the Variance is the average of the squared differences from the Mean.

For example: To find the standard deviation, you have to add up all the numbers in the data set, then divide by how many numbers there are, and that will get you your answer.

Example, Say your data set is: 9, 2, 5, 4, 12, 7, 8, 11, 9, 3, 7, 4, 12, 5, 4, 10, 9, 6, 9, 4.

The Mean is: 9 + 2 + 5 + 4 + 12 + 7 + 8 + 11 + 9 + 3 + 7 + 4 + 12 + 5 + 4 + 10+ 9 + 6 + 9 + 4. Over 20. That equals: 104 over 20 = 7.

So, the Standard Variance and Mean is: 7 for this problem.

Hope I helped!

- Debbie

4 0

3 years ago

Write each of the following expressions without using absolute value: |z−6|−|z−5|, if z<5

abruzzese [7]

Answer:

The answer is 1.

Step-by-step explanation:

Given the expression:

$|z-6|-|z-5|,\ if\ z$