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LUCKY_DIMON [66]
3 years ago
13

A teacher records the test scores of several students. Find the median (middle) score. 80, 72, 76, 71, 75, 78, 72, 74, 82,70

Mathematics
1 answer:
vovangra [49]3 years ago
5 0

Answer:

76.5

Step-by-step explanation:

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16. Find the value of y. ​
devlian [24]

y + (2x -12) = 180 (since they are supplementary angles)

(2x-12) = 96 ( since they are alternate exterior angle)

2x = 96 + 12

2x = 108

x = 108/2

x = 54.

y+( 2x-12)=180

y+(2× 54 -12) = 180

y + (108-12) = 180

y + 96 = 180

y= 180-96

y = 84.

8 0
2 years ago
For the given triangles select the lengths of the sides.
aivan3 [116]

Answer:

v=3

u=6

x=2√2

y=2√2

Step-by-step explanation:

First triangle :

tanΦ=v/3√3

tan30=v/3√3

(√3)/3=v/(3√3)

Cross multiply

(√3)/3 x 3√3=v

(√3 x 3√3)/3=v

(3√9)/3=v

(3x3)/3=v

9/3=v

3=v

v=3

Sin30=v/u

0.5=3/u

Cross multiply

0.5xu=3

0.5u=3

Divide both sides by 0.5

0.5u/0.5=3/0.5

u=6

Second triangle :

sin45=x/4

Cross multiply

x=4 x sin45

x=4 x (√2)/2

x=2√2

Cos45=y/4

Cross multiply

4 x Cos45=y

4 x (√2)/2=y

(4√2)/2=y

2√2=y

y=2√2

5 0
2 years ago
Find the perimeter of the window to the nearest hundredth.
olga_2 [115]
I believe the perimeter is 7.71
6 0
2 years ago
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Please help with 7-11
Thepotemich [5.8K]
The answer there is,-4
7 0
3 years ago
Complete the table of values for the equation 9x + 3y = 54.
mote1985 [20]

Answer:if im right you need to do 54 divided by 2= 27 so 27+27=54

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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