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tekilochka [14]
3 years ago
14

Find angle jkm pleeeease helppp

Mathematics
1 answer:
vladimir2022 [97]3 years ago
3 0
M<JKM = <M + <L
m<JKM = 25 + 25
m<JKM = 50

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Find the value of x to the nearest tenth
Ad libitum [116K]

tan 48 = x / 7

so

x = tan 48 * 7

x= 1.1106 * 7

x = 7.7742

x = 7.8

answer

7.8

5 0
3 years ago
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Help with this I don't know how to solve
miv72 [106K]

Answer:

approx 10.25

Step-by-step explanation:

According to Euclid theorem :

EG^2= DG*FG= 16*5=80

From right triangle EDG according to Phitagor's  theorem:

DE^2=EG^2+DG^2= 80+25=105

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8 0
3 years ago
Select the correct answer. Which matrix represents this system of equations? -2y + 7z = 10 9x + 5y = 1 2x + z = -5
Stells [14]

Answer:

In matrix form this can be represented as

\left[\begin{array}{ccc}0&-2&7\\0&5&0\\2&0&1\end{array}\right] \left[\begin{array}{ccc}x\\y\\z\end{array}\right] = \left[\begin{array}{ccc}10\\1\\5\end{array}\right]



Step-by-step explanation:

The given equations are

-2y + 7z = 10

9x + 5y = 1

2x + z = -5

Which can be written as

0x+-2y + 7z = 10

9x + 5y+0z = 1

2x +0y+ z = -5

In matrix form this can be represented as

\left[\begin{array}{ccc}0&-2&7\\0&5&0\\2&0&1\end{array}\right] \left[\begin{array}{ccc}x\\y\\z\end{array}\right] = \left[\begin{array}{ccc}10\\1\\5\end{array}\right]



When we multiply the above matrices we get the given set of equations.

In multiplying the matrices we check the no of columns of the first matrix and the number of rows of the second matrix. If they are equal ( as in this case they are 3) then the matrices can be multiplied .

The answer has the number of rows equal to the number of rows of the first matrix and the number of columns equal to the number of columns of the second matrix which is true in this case.

4 0
3 years ago
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Anettt [7]

Answer:

what does the picture say?

Step-by-step explanation:

4 0
3 years ago
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Carol surveyed two samples of 200 people each about their favorite musical instrument and recorded them in the table below.
Tcecarenko [31]

Answer:

\%Guitar = 33 \%

Step-by-step explanation:

Given

The two-way table

Required

Percentage of men and women whose favorite is Guitar

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\%Guitar = \frac{Guitar}{Total} * 100\%

\%Guitar = \frac{66}{200} * 100\%

\%Guitar = \frac{6600}{200} \%

\%Guitar = 33 \%

5 0
3 years ago
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