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
baherus [9]
3 years ago
9

Find the gcf of 15a and 28b^2. 9ab^2 0 3 1

Mathematics
1 answer:
lions [1.4K]3 years ago
5 0
Answer:

GCF(15a; 28b²) = 1
You might be interested in
What is the slope of y = -1 + 3x?
zubka84 [21]

Answer:

− 3

Step-by-step explanation:

We can rewrite the equation as: y = − 3 x + 0 This equation is now in the slope-intercept form. The slope-intercept form of a linear equation is: y = m x + b Where m is the slope and b is the y-intercept value. For: y = − 3 x + 0 the slope is: m = − 3

8 0
3 years ago
Two birds sit at the top of two different trees. The distance between the first bird and a birdwatcher on the ground is 29.7 fee
VladimirAG [237]

Answer:

44.87°

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Pls answer quick pls pls pls
xxTIMURxx [149]

Answer:

I got 2 km per hour

Step-by-step explanation:

7 0
2 years ago
Sample Size for Proportion As a manufacturer of golf equipment, the Spalding Corporation wants to estimate the proportion of gol
Dima020 [189]

Answer:

n=\frac{0.5(1-0.5)}{(\frac{0.025}{2.58})^2}=2662.56  

And rounded up we have that n=2663

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".  

The population proportion have the following distribution

\hat p \sim N(p,\sqrt{\frac{p(1-p)}{n}})

Solution to the problem

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 99% of confidence, our significance level would be given by \alpha=1-0.99=0.01 and \alpha/2 =0.005. And the critical value would be given by:

t_{\alpha/2}=-2.58, t_{1-\alpha/2}=2.58

The margin of error for the proportion interval is given by this formula:  

ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}    (a)  

And on this case we have that ME =\pm 0.025 and we are interested in order to find the value of n, if we solve n from equation (a) we got:  

n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}   (b)  

We can assume an estimated proportion of \hat p =0.5 since we don't have prior info provided. And replacing into equation (b) the values from part a we got:

n=\frac{0.5(1-0.5)}{(\frac{0.025}{2.58})^2}=2662.56  

And rounded up we have that n=2663

6 0
3 years ago
Help plz. 6th grade math
evablogger [386]

Answer:

2.5z^2+3z+4.2

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Other questions:
  • Round 534 to the nearest tenth
    7·2 answers
  • What properties do you think stay the same after a translation?
    12·1 answer
  • Kovach Ski Supply manufactures hand warmers for skiers. The expense function is =1.18+12,000 where q is the number of hand warme
    8·1 answer
  • Evaluate using long division first to write f(x) as the sum of a polynomial and a proper rational function. (Use C for the const
    14·1 answer
  • -3x+11=4x+2-(2x-4)<br><br> Please solve this problem with work. <br> Thanks!
    15·2 answers
  • What is the solution of 5x-6=44
    6·2 answers
  • $29,000; 4% decrease
    6·2 answers
  • if you are the first one to answer this question, you will be marked brsinlyest (ik I spelled that wrong but yk what I mean) wha
    13·1 answer
  • CAN SOMEONE HELP PLZ
    12·2 answers
  • Who Bigger 4 kilograms or 4,000 grams
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!