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3 years ago

Which of the following statements best explains why this graph represents a relation that is not a

Mathematics

2 answers:

ivanzaharov [21]3 years ago

6 0

Answer:

The 3 the graph extends forever to both the left and the right.

Step-by-step explanation:

salantis [7]3 years ago

3 0

Answer:

the second answer

Step-by-step explanation: too lazy to explain

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A cell phone provider offers a plan that costs $30 per month plus $0.20 per text message sent or received. A comparable plan c

dalvyx [7]

Answer:

Step-by-step explanation:$30 per month, $0.20 per text

A: 50 text messages in order for both plans to cost the same

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3 years ago

Please answer! Will give brainliest please and thank you

nydimaria [60]

Answer:

119 square ft is the answer now give me brainliest

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2 years ago

If a person walks 1/3 mile in 1/5 minutes, how far will that person walk in one hour?

astra-53 [7]

1/15 miles because you’re basically multiplying the fractions i believe

7 0

2 years ago

Read 2 more answers

Thirty-two is the product of nine and a number decreased by four

qwelly [4]

Answer:

Step-by-step explanation:

Thirty-two is = 32 =

The product of nine times a number = 9n

Decreased by four = - 4

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`

Good luck.

Leme know if wrong.

Lb.

4 0

3 years ago

A random sample of 31 charge sales showed a sample standard deviation of $50. a 90% confidence interval estimate of the populati

Marysya12 [62]

The $100(1-\alpha)\%$ confidence interval of a standard deviation is given by:

$\sqrt{ \frac{(n-1)s^2}{\chi^2_{1- \frac{\alpha}{2} } }} \leq\sigma\leq\sqrt{ \frac{(n-1)s^2}{\chi^2_{\frac{\alpha}{2} } }}$

Given a sample size of 31 charge sales, the degree of freedom is 30 and for 90% confidence interval,

$\chi^2_{1- \frac{\alpha}{2} }=43.773 \\ \\ \chi^2_{\frac{\alpha}{2} }=18.493$

Therefore, the 90% confidence interval for the standard deviation is given by

$\sqrt{ \frac{(31-1)50^2}{43.773 }} \leq\sigma\leq\sqrt{ \frac{(31-1)50^2}{18.493 }} \\ \\ \Rightarrow\sqrt{ \frac{(30)2500}{43.773 }} \leq\sigma\leq\sqrt{ \frac{(30)2500}{18.493 }} \\ \\ \Rightarrow\sqrt{ \frac{75000}{43.773 }} \leq\sigma\leq\sqrt{ \frac{75000}{18.493 }} \\ \\ \Rightarrow \sqrt{1713.38} \leq\sigma\leq \sqrt{4055.59} \\ \\ \Rightarrow41.4\leq\sigma\leq63.7$

3 0

3 years ago