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
ipn [44]
3 years ago
13

18m = 36 Please help me with this for brainliest HURRYYYY

Mathematics
1 answer:
Sladkaya [172]3 years ago
8 0

Answer: m=2

Step-by-step explanation: Hope this help :D

Let's solve your equation step-by-step.

18m=36

Step 1: Divide both sides by 18.

18m/18=36/18

m=2

You might be interested in
Factor f(x)=-8x^4-16x^2
guajiro [1.7K]

Answer:

8x^2(x^2-8)

Step-by-step explanation:

you find the lCM

the LCM of 16 and 8 is 8

the LCM of x^2 and x^4 is x^2

in all the LCM is 8x^2

8x^4/8x^2=x^2

you divide the numbers and subtract the powers of the variables

<h3>-16x^2/8x^2= -8 </h3><h3>the you put everything in a distribution form</h3><h3 />

7 0
4 years ago
Ab + 2b²<br> where<br> a = 7 b=4
Veronika [31]

Answer:

60

Step-by-step explanation:

a=7\\b=4\\ab+2b^2\\(7)*(4)+2*(4)^2\\28+2*16\\28+32\\=\fbox{60}

7 0
2 years ago
in a study of red/green color blindness, 600 men and 2150 women are randomly selected and tested. Among the men, 56 have red/gre
Umnica [9.8K]

Answer:

z=13.36 (Statistic)

p_v =P(Z>13.36)\approx 0

The p value is a very low value and using any significance level for example \alpha=0.05, 0,1,0.15 always p_v so we can conclude that we have enough evidence to reject the null hypothesis, and we can say the the proportion of men with red/green color blindness is significant higher than the proportion of female with red/green color blindness .

Step-by-step explanation:

1) Data given and notation

X_{MCB}=56 represent the number of men with red/green color blindness

X_{WCB}=5 represent the number of women with red/green color blindness

n_{MCB}=600 sample of male selected

n_{WCB}=600 sample of demale selected

p_{MCB}=\frac{56}{600}=0.093 represent the proportion of men with red/green color blindness

p_{WCB}=\frac{5}{2150}=0.0023 represent the proportion of women with red/green color blindness

z would represent the statistic (variable of interest)

p_v represent the value for the test (variable of interest)

2) Concepts and formulas to use

We need to conduct a hypothesis in order to check if the proportion for men with red/green color blindness is a higher than the rate for women  , the system of hypothesis would be:

Null hypothesis:p_{MCB} \leq p_{WCB}

Alternative hypothesis:p_{MCB} > \mu_{WCB}

We need to apply a z test to compare proportions, and the statistic is given by:

t=\frac{p_{MCB}-p_{WCB}}{\sqrt{\hat p (1-\hat p)(\frac{1}{n_{MCB}}+\frac{1}{n_{WCB}})}}   (1)

Where \hat p=\frac{X_{MCB}+X_{WCB}}{n_{MCB}+n_{WCB}}=\frac{56+5}{600+2150}=0.0221

t-test: Is used to compare group means. Is one of the most common tests and is used to determine whether the means of two groups are equal to each other.

3) Calculate the statistic

Replacing in formula (1) the values obtained we got this:

z=\frac{0.093-0.0023}{\sqrt{0.0221(1-0.0221)(\frac{1}{600}+\frac{1}{2150})}}=13.36  

4) Statistical decision

For this case we don't have a significance level provided \alpha, but we can calculate the p value for this test.  

Since is a one side test the p value would be:

p_v =P(Z>13.36)\approx 0

So the p value is a very low value and using any significance level for example \alpha=0.05, 0,1,0.15 always p_v so we can conclude that we have enough evidence to reject the null hypothesis, and we can say the the proportion of men with red/green color blindness is significant higher than the proportion of female with red/green color blindness .

4 0
3 years ago
You deposit $800 in an account that earns simple interest at an annual rate of 5%.
S_A_V [24]

Step-by-step explanation:

$800 × 5% = $40

for 1 year, I earn $40

100 ÷ 40 = 2 remainder 2

Therefore I would have to leave the money in for at least 3 years to earn $100

7 0
4 years ago
Read 2 more answers
Four times the square of a number increased by five times the same number
erastovalidia [21]
4(n²+ 5n)

I believe that is the answer :)



** the other answer is probably right. this is worded really weird. SORRY!
7 0
4 years ago
Read 2 more answers
Other questions:
  • Births are approximately Uniformly distributed between the 52 weeks of the year. They can be said to follow a Uniform distributi
    11·1 answer
  • What is the area of the figure?
    15·2 answers
  • You notice you are growing awfully fast lately. You have been growing at a rate of 3 inches per year. If you are 5 feet tall now
    8·1 answer
  • Can anyone find the value of b?
    5·2 answers
  • What is a numerator and a denominator
    11·2 answers
  • Find 3/7 of 1/5. A 4/12. B 3/35 C 8/35 D 22/35
    12·1 answer
  • 5) Ziegler is using paper for an art project
    7·1 answer
  • 2. True or False: According to financial experts, a renter should allow no more than 30%
    10·2 answers
  • Divide. 46 532 Enter your answer by filling in the boxes
    15·1 answer
  • Marcia bought a car for £34500 and sold it for £29700. what was her percentage loss?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!