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1 year ago

Numbers 7. 9 and 11.

Mathematics

1 answer:

Kay [80]1 year ago

3 0

Answer:

7. Closed circle with the line going left (put dot on 8)

9. Closed circle on -9 with the line going right

11. Open circle on -4 1/2 with the line going left

Step-by-step explanation:

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Of the last three chapters tests given in a computer programming class, 11 students passed all three tests , 9 students passed t

mote1985 [20]

Answer:

59%

Step-by-step explanation:

simply, it would be 11+2/22 = 59%

I assume there are no student that passed 0 tests

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2 years ago

Which quadratic function is represented by the graph?

forsale [732]

Answer:

Its b

Step-by-step explanation:

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2 years ago

Read 2 more answers

Add 1} + (-5) using the number line.

gizmo_the_mogwai [7]

Answer:

1/2

Step-by-step explanation:

1 1/3+(-5/6)

1 1/3=4/3

4/3+(-5/6)

4/3-5/6

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3/6

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2 years ago

Since an instant replay system for tennis was introduced at a majorâ tournament, men challenged 1399 refereeâ calls, with the re

prohojiy [21]

Answer: The value of test statistic is 0.696.

Step-by-step explanation:

Since we have given that

$n_1=1399\\\\x_1=411\\\\p_1=\dfrac{x_1}{n_1}=\dfrac{411}{1399}=0.294$

Similarly,

$n_2=759, x_2=211\\\\p_2=\dfrac{x_2}{n_2}=\dfrac{211}{759}=0.278$

At 0.01 level of significance.

Hypothesis are :

$H_0:P_1=P_2=0.5\\\\H_a:P_1\neq P_2$

So, the test statistic value would be

$z=\dfrac{(p_1-p_2)-(P_1-P_2)}{\sqrt{\dfrac{P_1Q_1}{n_1}+\dfrac{P_2Q_2}{n_2}}}\\\\z=\dfrac{0.294-0.278}{\sqrt{0.5\times 0.5(\dfrac{1}{1399}+\dfrac{1}{759})}}\\\\z=\dfrac{0.016}{0.023}=0.696$

Hence, the value of test statistic is 0.696.

3 0

2 years ago

What is the measure of angle A in the triangle into your answer in the box

ankoles [38]

Answer:50

Step-by-step explanation:

180-70=(2x-10)+(x+30) 110=3x+20 90=3x x=30 2(30)-10=60-10=<em>50</em>

if you found this helpful pls say thanks

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2 years ago