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monitta
3 years ago
11

I need help with this, please answer

Mathematics
1 answer:
Sholpan [36]3 years ago
8 0

Answer:

3 and 13 are supplementary angles.

8 and 10 are vertically opposite angles.

11 and 15 are co - interior angles.

8 and 16 are vertically opposite angles.

1 and 6 are alternating angles.

6 and 10 are supplementary angles.

14 and 15 are supplementary angles.

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Last night, the temperature fell from 0°F to –131 5 in 42 5 hours. What was the average temperature change per hour? Solve the d
Tcecarenko [31]

Answer:

-3.09 per hour

Step-by-step explanation:

if you mean that it went down from 0° to -131.5° in 42.5 hours, divide -131.5 by 42.5 (-131.5/42.5) which gives 3.09

6 0
3 years ago
Read 2 more answers
Many high school students take the AP tests in different subject areas. In 2007, of the 144,796 students who took the biology ex
Nataly [62]

Answer:

(0.582-0.485) - 1.64 \sqrt{\frac{0.582(1-0.582)}{144796} +\frac{0.485(1-0.485)}{211693}}=0.0942  

(0.582-0.485) + 1.64 \sqrt{\frac{0.582(1-0.582)}{144796} +\frac{0.485(1-0.485)}{211693}}=0.09978  

And the 90% confidence interval would be given (0.0942;0.09978).  

We are confident at 90% that the difference between the two proportions is between 0.0942 \leq p_A -p_B \leq 0.09978

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

p_A represent the real population proportion female for Biology

\hat p_A =\frac{84199}{144796}=0.582 represent the estimated proportion female for biology

n_A=144796 is the sample size for A

p_B represent the real population proportion female for calculus AB

\hat p_B =\frac{102598}{211693}=0.485 represent the estimated proportion female for Calculus AB

n_B=211693 is the sample size required for B

z represent the critical value for the margin of error  

The population proportion have the following distribution  

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})  

The confidence interval for the difference of two proportions would be given by this formula  

(\hat p_A -\hat p_B) \pm z_{\alpha/2} \sqrt{\frac{\hat p_A(1-\hat p_A)}{n_A} +\frac{\hat p_B (1-\hat p_B)}{n_B}}  

For the 90% confidence interval the value of \alpha=1-0.90=0.1 and \alpha/2=0.05, with that value we can find the quantile required for the interval in the normal standard distribution.  

z_{\alpha/2}=1.64  

And replacing into the confidence interval formula we got:  

(0.582-0.485) - 1.64 \sqrt{\frac{0.582(1-0.582)}{144796} +\frac{0.485(1-0.485)}{211693}}=0.0942  

(0.582-0.485) + 1.64 \sqrt{\frac{0.582(1-0.582)}{144796} +\frac{0.485(1-0.485)}{211693}}=0.09978  

And the 90% confidence interval would be given (0.0942;0.09978).  

We are confident at 90% that the difference between the two proportions is between 0.0942 \leq p_A -p_B \leq 0.09978

5 0
3 years ago
Ming needs 1/2 pint of red paint for an art project. He has 6 jars that have the following amounts of red paint in them. He want
Alex17521 [72]

Answer:

Step-by-step explanation:

GIvn that Ming needs 1/2 pint of red paint for an art project

The 6 jars he has, have the following red paint in them

A. 2/3 pint

B.1/4 pint

C.4/6 pint

D.3/4 pint

E. 3/8 pint

F.2/6 pint

Since he want 1/2 pint he can use only jar B two times

First pour jar B contents equal to 1/4 pint to a new empty jar.

Now he can pour from A 1/4 pint to B, and then again use that

So altogether he gets 1/2 pint of red paint.

7 0
3 years ago
Read 2 more answers
What is the quotient of the complex number 4-3i divided by its conjugate?
almond37 [142]

Answer: C. \frac{7}{25}-\frac{24}{25}i


Step-by-step explanation:

1. You have the following division:

\frac{4-3i}{4+3i} (As you can see, to find the conjugate of  4-3i you must change the sign between the terms).

2. To solve this division, you must multiply the numerator and the denominator by the conjugate of the denominator, as following:

=\frac{(4-3i)}{(4+3i)}\frac{(4-3i)}{(4-3i)}=\frac{16-12i-12i+9i^{2}}{16-9i^{2}}

3. Keeping on mind that i^{2}=-1, you have:

=\frac{16-12i-12i+9(-1)}{16-9(-1)}

4. Simplifying:

=\frac{7-24i}{25}=\frac{7}{25}-\frac{24}{25}i

5. The result is:

\frac{7}{25}-\frac{24}{25}i

3 0
3 years ago
CAN BOTS JUST PLEASE STOP REPOSTING THE SAME RESPONSE AND SOMEONE PLEASE HELP ME
Triss [41]

Answer:

y=-5x+-3

Step-by-step explanation:

the slope is negative and its rise over run so 5/1 which is five and the y intercept is -3

8 0
3 years ago
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