1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mnenie [13.5K]
3 years ago
12

Answer the photo below thanks

Mathematics
1 answer:
MArishka [77]3 years ago
7 0

Answer:

i think the answer is C

sorry if i am wrong

Step-by-step explanation:

You might be interested in
Help last question for math<br> What is:<br> -3/8 divided by 7/12?
schepotkina [342]
-3/8 divided by 7/12
-3/8 times 12/7 ( 7/12 is switched because it is changing from division to  multiplication)
-3/8 times 12/7= -9/14
Hope this helped
8 0
3 years ago
Find the equatios of the tangents to the curve xy=6 which are parallel to the line 2y+3x=0
jekas [21]

y=-3x/2

because gradient =-3/2

and u must use formula (y-y1) = m(x-x1)

7 0
3 years ago
Many companies use well-known celebrities as spokespersons in their TV advertisements. A study was conducted to determine whethe
s2008m [1.1K]

Answer:

There is enough evidence to support the claim that the proportion of brand awareness of female TV viewers and the gender of the spokesperson are not independent (P-value = 0.01537).

Step-by-step explanation:

<em>The question is incomplete: the picture attached gives the missing sample data.</em>

This is a hypothesis test for the difference between proportions.

The claim that is going to be stated in the alternative hypothesis is that the proportion of brand awareness of female TV viewers and the gender of the spokesperson are not independent. This means that the proportions differ significantly.

Then, the null and alternative hypothesis can be written as:

H_0: \pi_1-\pi_2=0\\\\H_a:\pi_1-\pi_2\neq 0

The significance level is 0.05.

The sample 1 (Male celebrity), of size n1=150 has a proportion of p1=0.273.

p_1=X_1/n_1=41/150=0.273

The sample 2 (Female celebrity), of size n2=150 has a proportion of p2=0.407.

p_2=X_2/n_2=61/150=0.407

The difference between proportions is (p1-p2)=-0.133.

p_d=p_1-p_2=0.273-0.407=-0.133

The pooled proportion, needed to calculate the standard error, is:

p=\dfrac{X_1+X_2}{n_1+n_2}=\dfrac{41+61.05}{150+150}=\dfrac{102}{300}=0.34

The estimated standard error of the difference between means is computed using the formula:

s_{p1-p2}=\sqrt{\dfrac{p(1-p)}{n_1}+\dfrac{p(1-p)}{n_2}}=\sqrt{\dfrac{0.34*0.66}{150}+\dfrac{0.34*0.66}{150}}\\\\\\s_{p1-p2}=\sqrt{0.001496+0.001496}=\sqrt{0.002992}=0.055

Then, we can calculate the z-statistic as:

z=\dfrac{p_d-(\pi_1-\pi_2)}{s_{p1-p2}}=\dfrac{-0.133-0}{0.055}=\dfrac{-0.133}{0.055}=-2.44

This test is a two-tailed test, so the P-value for this test is calculated as (using a z-table):

P-value=2\cdot P(z

As the P-value (0.01537) is smaller than the significance level (0.05), the effect is significant.

The null hypothesis is rejected.

There is enough evidence to support the claim that the proportion of brand awareness of female TV viewers and the gender of the spokesperson are not independent (the proportions differ).

6 0
3 years ago
Relate-to-a-Simpler-Problem
Alex73 [517]

Answer:

1. 128 pages.

2. (y - x) + 1

3. 6 pages.

4. Helps to formulate the expression for the number of pages read.

Step-by-step explanation:

1. George will read pages 385 through 512 in his karate history book. And we are asked to find the number of pages that he will read.

The required number of pages that George read will be = (512 - 385) + 1 = 128 pages.

2. If he read from page number x through page number y then the general rule of finding the number pages that he read will be = (y - x) + 1

3. If x = 500 and y = 505, then the number of pages read is = (505 - 500) + 1 = 6 pages.

Again, if x = 5 and y = 29, then again the number of pages read is = (29 - 5) + 1 = 25 pages.

4. The rule just formulates the expression for the number of pages read and it eases the calculation for the number of pages read. (Answer)

7 0
3 years ago
Simplify <br> 3sin 0+ 2sin 0- 4sin0+ 5sin0<br> step by step
Ymorist [56]

Answer:

0

Step-by-step explanation:

3x0+2x0-4x0+5x0

0

5 0
3 years ago
Read 2 more answers
Other questions:
  • Describe a real life multiplication situation for which an estimate makes sense.
    13·1 answer
  • Even more<br> 5x + 2(x+7)
    11·2 answers
  • Giving out brainliest !!
    6·2 answers
  • What is the determinant of k= 6 8 0 3
    5·2 answers
  • Write the quadratic expression -16t2 − 8t + 24 in factored form.
    9·1 answer
  • Please help me idk this
    13·2 answers
  • I NEED HELP ASAP!!
    6·1 answer
  • The graph of the parent function, f(x) = x3, is translated such that the function g(x) = (x – 4)3 – 1 represents the new graph.
    5·1 answer
  • Which expression is equivalent to (4x^(3)y^(5))(3x^(5)y)^(2)
    12·1 answer
  • PLEASE HELP ASAP T^T
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!