Find the distance between the points B(- 3, - 4) and C(10,

If the complement of an angle is 79 degree , then the angle will be of .............measures

nadya68 [22]

Answer:

11°

Step-by-step explanation:

90°-79°

=11°

Hope it helps

7 0

3 years ago

Please help asap 50 pts

german

C. You can get rid of B and D right away, because the length is longer than the width. Then you just multiply the remaining options to see which one's product is 204. It would be C because 12*17=204.

4 0

3 years ago

Which statement is true of the function f(x) = -3/x? Select three options.

melamori03 [73]

<h2>Answer:</h2>

We have the following function:

$f(x)=-\frac{3}{x}$

The graph of this function has been plotted below. So lets analyze each statement:

<h3>1. The function is always increasing. </h3><h3>False</h3>

As you can see x increases from -∞ to 0 and decreases from 0 to +∞

<h3>2. The function has a domain of all real numbers. </h3><h3>False</h3>

The function is undefined for $x=0$ since x is in the denominator.

<h3>3. The function has a range of {yl- </h3>

Statement is unclear but the range is the set of all real numbers except zero.

<h3 /><h3>4. The function is a reflection of y = 3. </h3><h3>False</h3>

The function is a reflection in the x axis of the function $g(x)=\frac{3}{x}$

<h3>5. The function passes through the point (3,-27).</h3><h3>False</h3>

This is false since:

$f(3)=-1\neq -27$

Note. As you can see those statements are false, so any of them is true, except item 3 that is unclear.

7 0

3 years ago

Read 2 more answers

What is the mean, median, and mode of 33, 37, 37, 39, 42, 43, 46, 48, 50, 52, 55

Akimi4 [234]

Answer:

Mean: 43.8 Mode: 37 and Median: 43

3 0

4 years ago

Read 2 more answers

The breaking strength of a fiber is required to be at least 150 psi. Past experience has indicated that the standard deviation o

aleksley [76]

Answer:

(a) Null hypothesis: The breaking strength of a fiber is required to be 150 psi

Alternate hypothesis: The breaking strength of a fiber is required to be 150 psi or greater than 150 psi

(b) Fail to reject the null hypothesis. The breaking strength of a fiber is required to be 150 psi

(c) P-value is 0.025

(d) 95% confidence interval for the mean breaking strength is between 145.227 psi and 154.773 psi

Step-by-step explanation:

(a) The null hypothesis is a statement from the population parameter which is subject to testing. The alternate hypothesis is also a statement from the population parameter that negates the null hypothesis.

(b) Z = (sample mean - population mean) ÷ sd/√n

sample mean = 145+153+150+147/4 = 148.75 psi, population mean = 150 psi, sd = 3 psi, n= 4

Z = (148.75 - 150) ÷ 3/√4 = -1.25 ÷ 1.5 = -0.833

This test is a two tailed test. The critical value at 0.05 significance level is 1.96. The region of no rejection of the null hypothesis lies between -1.96 and 1.96 since it is a two tailed test.

Conclusion: since -0.833 falls within the region bounded by -1.96 and 1.96, fail to reject the null hypothesis. The breaking strength of a fiber is required to be 150 psi

(c) The cumulative area for the critical value Z = 1.96 is 0.9750

P-value = 1 - 0.9750 = 0.025

(d) Confidence Interval = mean + or - error margin (E)

E = t×sd/√n

n = 4, degree of freedom = n-1 = 4-1 = 3, t-value corresponding to 3 degrees of freedom and 95% confidence level is 3.182

E = 3.182×3/√4 = 4.773

Lower limit = mean - E = 150 - 4.773 = 145.227

Upper limit = mean + E = 150 + 4.773 = 154.773

95% confidence interval is (145.227 psi, 154.773 psi)

7 0

3 years ago

Find the distance between the points B(- 3, - 4) and C(10, - 4).