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jok3333 [9.3K]
3 years ago
11

Pls help this needs to be answered by today.

Mathematics
1 answer:
andrey2020 [161]3 years ago
8 0
The number of cd’s in Walters collection is 36.

x+3x=144

4x=144

144/4=36

X=36
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Find the mean of the following,-6,-10,-4,8,9,-2,5,6.​
andre [41]

mean =  \frac{sum \: of \: all \: observations}{number \: of \: observations}  \\  =  > mean =  \frac{( - 6) + ( - 10) + ( - 4) + 8 + 9 + ( - 2) + 5 + 6}{8}  \\  =  > mean =  \frac{6}{8}  \\  =  > mean = 0.75

This is the answer.

8 0
3 years ago
In ΔKLM, the measure of ∠M=90°, KM = 40, LK = 41, and ML = 9. What ratio represents the tangent of ∠K?
melomori [17]

Answer:

The ratio representing the tangent of ∠K is 40 : 9.

Step-by-step explanation:

Consider the right-angles triangle KLM below.

The angle M is 90°.

KM = perpendicular (<em>p</em>) = 40

ML = base (<em>b</em>) = 9

LK = hypotenuse (<em>h</em>) = 41

The tangent of an angle is the ratio of the perpendicular length to the length of the base.

Compute the tangent of ∠K as follows:

tan (K)=\frac{p}{b}=\frac{40}{9}

Thus, the ratio representing the tangent of ∠K is 40 : 9.

5 0
3 years ago
how many square meters of tile are needed to tile the sides and bottom of the swimming pool that's 25 by 20
Burka [1]
The bottom is (25 x 20) = 500 of whatever those units are, squared. Each long side is (25 x the depth of the pool, which we don't know), and each end is (20 x depth).
5 0
4 years ago
If there is a parallelogram with one pair of opposite sides that are congruent and another pair that is parallel, how do I prove
dybincka [34]

Simply state that it is a parallelogram according to the parallelogram theorm. If you need the segments here's an example (A ≈ B and C ≈ D) thats it!

3 0
3 years ago
Pleaseeeeeee HELP!!!!!!
ycow [4]

Answer:

x = 19

Step-by-step explanation:

In an isosceles trapezoid the base angles are congruent, thus

5x - 20 = 2x + 37 ( subtract 2x from both sides )

3x - 20 = 37 ( add 20 to both sides )

3x = 57 ( divide both sides by 3 )

x = 19

5 0
4 years ago
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