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
Naya [18.7K]
3 years ago
7

Help help pls help quick pls help help

Mathematics
2 answers:
uysha [10]3 years ago
5 0
Answer: I’m pretty sure its D) 1 1/9
yawa3891 [41]3 years ago
3 0

Answer:

d) 1 1/9

Step-by-step explanation:

hope this helps!!

You might be interested in
I need help please!!!
Zigmanuir [339]

Answer:

a lot

Step-by-step explanation:

3 0
3 years ago
In a recent survey by the National Association of Colleges and Employers, the average starting salary for college graduate with
puteri [66]

Answer:

A sample size of 21 is needed.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1 - 0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1 - \alpha.

That is z with a pvalue of 1 - 0.025 = 0.975, so Z = 1.96.

Now, find the margin of error M as such

M = z\frac{\sigma}{\sqrt{n}}

Using an estimated standard deviation of $11,605

This means that \sigma = 11605

What sample size do you need to have a margin of error equal to $5000 with 95% confidence

A sample size of n is needed. n is found when M = 5000. So

M = z\frac{\sigma}{\sqrt{n}}

5000 = 1.96\frac{11605}{\sqrt{n}}

5000\sqrt{n} = 1.96*11605

\sqrt{n} = \frac{1.96*11605}{5000}

(\sqrt{n})^2 = (\frac{1.96*11605}{5000})^2

n = 20.69

Rounding up,

A sample size of 21 is needed.

5 0
3 years ago
A dilation has center (0,0). Find the image of the point L(-4,0) for the scale factor 9.
Andreyy89

Answer:

L' = (-36, 0)

Step-by-step explanation:

If the point (x, y) is dilated by a scale factor of k about the center (0, 0), then its image is the point (kx, ky)

∵ A dilation has a center (0, 0)

∵ The point L is (-4, 0)

∴ x = -4 and y = 0

∵ The scale factor of dilation is 9

∴ k = 9

→ By using the rule above

∵ kx = 9(-4) = -36

∵ ky = 9(0) = 0

∵ The image of the point L is (kx, ky)

∴ L' = (kx, ky)

∴ L' = (-36, 0)

8 0
3 years ago
Can someone do it and explain please? I don’t get it
Katen [24]
Is it 60 degrees or 70 degrees? because 100 + 120 = 220
360 - 220 = 140
One side looks larger than the other tho so I am not sure.
8 0
3 years ago
Which best describes why a diamond ring will sometimes sparkle different colors in normal white light
kiruha [24]

Answer :because sometimes it can be fake

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Which cylinders have the same volume as the cylinder below? Check all that apply.
    9·2 answers
  • Round $8.597 to the nearest cent<br> $8.60<br> $8.59<br> $8.69<br> $8.50
    12·1 answer
  • the length of a rectangular prism is 2/3 yards the width 5/6 yard the height 4/5 yard what is the volume?
    15·1 answer
  • Y-2&gt;1 ON A NUMBER LINE
    6·1 answer
  • Compare 5.7145... and √29.
    7·1 answer
  • Find the constant of proportionality (r) in the equation y = rx
    15·1 answer
  • Select all that apply.
    14·2 answers
  • For every 2 girls in Mr Hegarty's class there are 5 boys. What is the ratio of girls to boys in the class?
    10·1 answer
  • Write 1/4 as an equivalent fraction with denominator 24
    9·1 answer
  • Question 8 using radians, find the amplitudeand period of each function and graph it
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!