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3 years ago

I NEED ANSWERS FAST. 1.Using the following image, find

Mathematics

2 answers:

Gwar [14]3 years ago

5 0

Answer: FE is 7 and RS is 6.

Step-by-step explanation:

13 - 6 = 7

11-5= 6

marishachu [46]3 years ago

5 0

Answer:

FE = 7

RS = 6

Step-by-step explanation:

for the first line, we know that line GE is 13 units long, and segment GF is 6 units. simply subtract 6 from 13 to get the length of segment FE.

13 - 6 = 7

You can do the same thing for the second problem.

11 - 5 = 6

hope it helps!

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Yuri [45]

Answer:

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Step-by-step explanation:

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2 years ago

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4 years ago

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azamat

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3 years ago

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Anna [14]

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3 years ago

In an investigation of pregnancy-induced hypertension, one group of women with this disorder was treated with low-dose aspirin,

AleksandrR [38]

Answer:

Step-by-step explanation:

Given that in an investigation of pregnancy-induced hypertension, one group of women with this disorder was treated with low-dose aspirin, and a second group was given a placebo. A sample consisting of 50 women who received aspirin has mean arterial blood pressure 120mmHg and standard deviation 10mmHg; a sample of 42 women who were given the placebo has mean blood pressure 115mmHg and standard deviation 12mmHg.

Population variances are equal

$H_0: \bar x = \bar y\\H_a: \bar x \neq \bar y$

(two tailed test at 5% significance level)

Here x denotes group I and Y group II

N Mean StDev SE Mean

Sample 1 50 120 10 1.4142

Sample 2 42 115 12 1.8516

Pooled std deviation = 10.9565

df=80

Mean difference= 5

Test statistic t = mean diff/std error = $\frac{5}{2.3299}$ =2.1803

p value = 0.0318

since p <0.05 we reject H0

b) We find p >0.01 hence at 1% significance level we accept H0

This implies that 99% confidence interval contains mean difference =0

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4 years ago