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3 years ago

9

Write an equation of the line that passes through (1,5) and is perpendicular to the line shown

2 answers:

Pani-rosa [81]3 years ago

7 0

The line on the graph is y = 3x + 3.
Perpendicular to the line is y = 3x + 1.
y = 3x + 1 also passes through (1, 5).

Answer:
y = 3x + 1

zysi [14]3 years ago

6 0

Answer:

y = 3x + 1

Step-by-step explanation:

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Statistics professors believe the average number of headaches per semester for all students is more than 18. From a random sampl

kompoz [17]

Complete Question

Statistics professors believe the average number of headaches per semester for all students is more than 18. From a random sample of 15 students, the professors find the mean number of headaches is 19 and the standard deviation is 1.7. Assume the population distribution of number of headaches is normal.the correct conclusion at $\alpha =0.001$ is?

Answer:

There is no sufficient evidence to support the professor believe

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 18$

The sample size is $n = 15$

The sample mean is $\= x = 19$

The standard deviation is $\sigma = 1.7$

The level of significance is $\alpha = 0.001$

The null hypothesis is $H_o: \mu = 18$

The alternative hypothesis is $H_a : \mu > 18$

The critical value of the level of significance from the normal distribution table is

$Z_{\alpha } = 3.290527$

The test hypothesis is mathematically represented as

$t = \frac{\= x - \mu }{ \frac{\sigma}{ \sqrt{n} } }$

substituting values

$t = \frac{ 19 - 18}{ \frac{1.7}{ \sqrt{15} } }$

$t = 2.28$

Looking at the value of t and $Z_{\alpha }$ we can see that $t < Z_{\alpha }$ so we fail to reject the null hypothesis.

This mean that there is no sufficient evidence to support the professor believe

3 0

3 years ago

Simplify [-2.8] please help me how to simplify this math proplem??????<br /><br />

Karolina [17]

In fraction form the answer would be -2 4/5.

7 0

3 years ago

Read 2 more answers

2/5 in Fraction form?

hram777 [196]

Answer:

2/5 is fraction form.

0.4 is decimal form btw.

5 0

2 years ago

10. Select all that are true for the graph that represents

Likurg_2 [28]

Answer:

A, C and F

Step-by-step explanation:

The given function is

$f(x)=5(3)^x$

It is an exponential function of the form

$f(x)=a(b)^x$

On comparing both the functions, we get

$a=5,b=3$

It means the initial value is 5 and growth factor is 3.

Since both values are positive it means the given functions is an exponential growth function, therefore,

1. The graph is increasing by a common ratio of 3.

2. As x increases, y increases.

3. As x decreases, y approaches 0.

Hence, the correct options are A, C and F.

8 0

2 years ago

Use the properties of the parallelogram drawn to find m

ch4aika [34]

Answer:

photo not clear

Step-by-step explanation:

try re-upload the question

6 0

1 year ago