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
siniylev [52]
3 years ago
12

Please help me thank you in advance!

Mathematics
1 answer:
Oxana [17]3 years ago
7 0

Answer:

First option: (x+9)^2=81

Step-by-step explanation:

It has the same solution

You might be interested in
What is 6 thousandths of a meter of a decimal
Svetllana [295]
0.006
That's you're answer
5 0
3 years ago
Read 2 more answers
Find the sum of this infinite geometric series where a1=0.3 and r=0.1
ratelena [41]

Answer:

1/3

Step-by-step explanation:

The formula for computing the sum of an infinite geometric series is

S=\frac{a_1}{1-r} where r is between -1 and 1 and r is the common ratio, and a_1 is the first term of the series.

So let's plug in:

S=\frac{0.3}{1-0.1}

S=\frac{0.3}{0.9}

S=\frac{3}{9} I multiplied bottom and top by 10.

S=\frac{1}{3} I divided top and bottom by 3.

The sum is 1/3.

8 0
3 years ago
The graph of f(x)=cos(x) is transformed to a new function, g(x) , by stretching it horizontally by a factor of 4 and shifting it
SpyIntel [72]

The equation of the new function is g(x)= cos4 x+1

Explanation:

The Parent function is f(x)=cos x

We need to determine the new function g(x) using the transformation by stretching the f(x) horizontally by a factor of 4 and shifting it 1 unit up.

The function transformation formula is given by

f(x)=a \cos b(x-c)+d

Where a stretches the function vertically

b compresses or stretches it horizontally,

c shifts the function left or right

d shifts the function up or down

Since, it is given that the function stretches horizontally by a factor of 4 and shifting it 1 unit up.

Hence, b=4 and d=1

Substituting these values in the formula, we have,

g(x)=cos4x+1

Thus, the equation of the new function is g(x)= cos4 x+1

8 0
3 years ago
In preparation for an earnings report, a large retailer wants to estimate p= the proportion of annual sales
mr Goodwill [35]

Using the z-distribution, it is found that the 95% confidence interval for the proportion of sales that occured in December is (0.1648, 0.2948).

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

In this problem, we have a 95% confidence level, hence\alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so the critical value is z = 1.96.

The sample size and the estimate are given by:

n = 161, \pi = \frac{37}{161} = 0.2298

Hence:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2298 - 1.96\sqrt{\frac{0.2298(0.7702)}{161}} = 0.1648

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2298 + 1.96\sqrt{\frac{0.2298(0.7702)}{161}} = 0.2948

The 95% confidence interval for the proportion of sales that occured in December is (0.1648, 0.2948).

More can be learned about the z-distribution at brainly.com/question/25890103

5 0
3 years ago
Please help me with this question
Nuetrik [128]

Answer:

false

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Some students reported how many textbooks they have. The dot plot shows the data collected: A dot plot is titled Students Textbo
    15·1 answer
  • Alex wants to paint the four walls of her new office. The room has dimensions 18 feet by
    15·2 answers
  • A mirror with a reflecting surface that caves inward is said to be
    12·1 answer
  • A scientist launched an object upward at a speed of 32 ft per second from a height of 240 feet. The height of the object is mode
    9·1 answer
  • Help I will mark brainliest​
    6·1 answer
  • The polygons in each pair are similiar help find the missibg length???
    5·1 answer
  • Write an equation to a line that is perpendicular to y= -0.3x +6 that passes through points (3,-8)
    12·1 answer
  • Which expression is equivalent to 8f+5f?
    8·1 answer
  • A veterinarian weighs three cats. The American Shorthair weighs 13.65 pounds. The Persian weighs 13.07 pounds, and the Maine Coo
    10·1 answer
  • How many ways can 6 letters be arranged 3 at a time
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!