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Triss [41]
3 years ago
12

Help me please :( 》 find SQ

Mathematics
1 answer:
ryzh [129]3 years ago
4 0

Answer:

SQ = 17.5

Step-by-step explanation:

note that

SK = 7 + 2 = 9

SJ = SQ + 5

Given

\frac{SP}{SK} = \frac{SQ}{SJ} ( substitute values )

\frac{7}{9} = \frac{SQ}{SQ+5} ( cross- multiply )

9 SQ = 7(SQ + 5) ← distribute parenthesis by 7

9 SQ = 7 SQ + 35 ( subtract 7 SQ from both sides )

2 SQ = 35 ( divide both sides by 2 )

SQ = 17.5

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Answer:

605100

Step-by-step explanation:

6.051*10^5=605100

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Prime factors of 20 i dont know this question
dem82 [27]

Answer:

 2 x 2 x 5,

Step-by-step explanation:

20 = 1 x 20

        2 x 10

        4 x 5

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Prime factors are = 2 x 2 x 5,

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Taya2010 [7]

Answer:

<u>The </u><u><em>red marbles.</em></u>

Step-by-step explanation:

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3 years ago
In a survey, of the voters support a particular referendum. If 40 voters are chosen at random, find the mean and variance for th
Katyanochek1 [597]

This question is incomplete, the complete question is;

In a survey, 55% of the voters support a particular referendum. If 40 voters are chosen at random,

find the mean and variance for the number of voters who support the referendum.

Answer:

a) The Mean is 22

b) Variance is 9.9

Step-by-step explanation:

Given that;

55% of the voters support a particular referendum p = 0.55

q = 1 - p = 1 - 0.55 = 0.45

sample size n = 40

a)

Mean = sample size n × p

Mean = 40 × 0.55

Mean = 22

Therefore the Mean is 22

b)

Variance = n × p × q

so we substitute

Variance = 40 × 0.55 × 0.45

Variance = 9.9

Therefore the Variance is 9.9

3 0
3 years ago
What's 4.50+4.50+2.39+2.39+1.99? What's the answer minus 25?? pls halp meh '-'
Anna [14]
4.50+4.50=9.00=9
+
2.39+2.39=4.78
+
1.99
=
15.77

15.77-25=-9.23
7 0
3 years ago
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