Answer: C. 13.86
Step-by-step explanation:
Write 9/12 as a sum of unit fractions.
Answer:
9/12 = 1/2 + 1/4
Step-by-step explanation:
This can be done in an unlimited number of ways. Which you choose depends on what you are trying to achieve. Each way will get you the same sum. <33
I need help please anyone ?????!!!
Answer:
3) No solution
4) No solution
Step-by-step explanation:
3) The equation simplifies to ...
5x +15 = 5x +3
15 = 3 . . . . . . . . . . subtract 5x; no value of x will make this true
There is no solution.
__
4) The equation simplifies to ...
4 = -5 . . . . . . . . . subtract y; no value of y will make this true
There is no solution.
Answer:
Step-by-step explanation:
What is the answer to 809 x 67
Answer:
The answer is 54203!
Step-by-step explanation:
Pls mark me branlyist
Answer:
The answer to your question is....
809 x 67 = 54203
Find all of the x-intercepts of the polynomial function
p(x) = 3x^3-23x^2+33x–5
Answer:
x=5/3
x= 3+2[tex]\sqrt{2}[/tex]
x= 3-2[tex]\sqrt{2}[/tex]
Step-by-step explanation:
if graphed the x intercepts would be (5/3 , 0) (3+2[tex]\sqrt{2}[/tex] ) (3-2[tex]\sqrt{2}[/tex])
y intercepts (0,-5)
A survey of randomly selected visitors to a mall yielded the following data:
Approved new design for the seating in the food court
Number surveyed
Male
155
254
Female
157
301
Based on this sample, what would be the correct decision and conclusion of a test to determine whether the proportion who approve the design plan for the seating area in the food court is higher for men than it is for women at the 5% level?
a) Reject the null concluding that there is evidence the proportion is higher for men.
b) Reject the null hypothesis concluding that there is no evidence that the proportion is higher for men.
c) Do not reject the null hypothesis concluding that there is evidence that the proportion is higher for men.
d) Reject the null concluding that there is evidence the proportion is higher for women.
e) Do not reject the null hypothesis concluding that there is no evidence that the proportion is higher for men.
Answer:
The answer is A
Step-by-step explanation:
Reject the null concluding that there is evidence the proportion is higher for men.
Using the z-distribution, as we are working with proportions, it is found that the correct option is:
b) Reject the null hypothesis concluding that there is no evidence that the proportion is higher for men.
What are the hypothesis tested?At the null hypothesis, it is tested if the proportions are the same, that is:
[tex]H_0: p_M - p_W = 0[/tex]
At the alternative hypothesis, it is tested if it is higher for men, that is:
[tex]H_1: p_M - p_W > 0[/tex]
What is the distribution of the difference of proportions?For each sample, we have that:
[tex]p_M = \frac{155}{254} = 0.6102, s_M = \sqrt{\frac{0.6102(0.3898)}{254}} = 0.0306[/tex]
[tex]p_W = \frac{157}{301} = 0.5216, s_W = \sqrt{\frac{0.5216(0.4784)}{301}} = 0.0288[/tex]
Then, for the distribution of differences, the mean and the standard error are given by:
[tex]\overline{p} = p_M - p_W = 0.6102 - 0.5216 = 0.0886[/tex]
[tex]s = \sqrt{s_M^2 + s_W^2} = \sqrt{0.0306^2 + 0.0288^2} = 0.042[/tex]
What is the test statistic?It is given by:
[tex]z = \frac{\overline{p} - p}{s}[/tex]
In which p = 0 is the value tested at the null hypothesis, hence:
[tex]z = \frac{\overline{p} - p}{s}[/tex]
[tex]z = \frac{0.0886 - 0}{0.042}[/tex]
[tex]z = 2.11[/tex]
What is the decision?Considering a right-tailed test, as we are testing if the proportion is higher than a value, with a significance level of 0.05, the critical value is of [tex]z^{\ast} = 1.645[/tex].
Since the test statistic is greater than the critical value for the right-tailed test, there is enough evidence to reject the null hypothesis that the there is no evidence that the proportion is higher for men, hence option b is correct.
More can be learned about the z-distribution at https://brainly.com/question/26454209
PLEASE HELP HELP HELP IMAGE ATTAcHED
Answer:
is 3
Step-by-step explanation:
because look at the down the trigal and you will see that they pointing at the tree
Answer:
3
Step-by-step explanation:
P(1, 3) ⇒ P'(3, 9)
R(1, 1) ⇒ R'(3, 3)
Q(3, 1) ⇒ Q'(9, 3)
Looking at the points, it appears that the x and y coordinates are being multiplied by 3. Therefore, the scale factor is 3.
7 David spent 2 2/5 hours reading on Saturday night. On Sunday, he spent 3 1/5 hours reading. How much time did he spending reading on Saturday and Sunday?* (10 Points) O 54/5 hours A 5 3/5 hours 6 hours 075/5 hours Next
Answer:
5 and 3/5
Step-by-step explanation:
For this problem, they are asking that we basically sum up the total amount of reading time on Saturday and Sunday. Saturday's reading time is 2 and 2/5, while Sunday's reading time is 3 and 1/5. Add them together to get 5 and 3/5.
Please hurry it’s missing
Answer:
B. $1,400
Step-by-step explanation:
8.75 x 20 x 8 =
8.75 x 160 = $1400
B
Hope that helps!
1400 hurry also hoped it helped
just the answer and I'll give the best rating.
Answer:
89 i dont know
Step-by-step explanation:
6TH grade math please help AP EX
Answer:
I think the 1st one would be 10...
Step-by-step explanation:
Because 12-2=10 and 18-8=10.
If I'm wrong, im super sorry
24. On the coordinate plane to the right, graph
the inequality 2x +y >1.
Help fast pls
3. If there are 220 members of the 7th grade
class, then how many students can be expected
to prefer the zoo?
A tank contains 10 gallons of water. Joanna uses a hose to slowly add more water to the
tank. Five gallons of water are added to the tank every minute. Write an equation to describe the relationship between the number of gallons in the tank and the number of minutes the tank is being filled. Use x to represent the number of minutes, and use y to represent the number of gallons of water.
Answer:
Y= 5x + 10
give brainlyest
Step-by-step explanation:
Answer:
y = 5x
Step-by-step explanation:
Please help! The question is above^
(Ignore the one already selected, it may not even be the right one)
Find the sum of the polynomials below: (4x? + 5x5 + 1x+6) + (10x7 + 6x5 - 4x + 4)
Answer:
10 x^7 + 6 x^5 - 4 x + 4
Step-by-step explanation:
James divided 144 ounces of water evenly among 4 containers. One of the containers leaked 8 ounces.
How many ounces of water were left in the leaky container?
Answer:
I dont understand your question rither
Step-by-step explanation:
sorry I would help is I neew
y=x+6 and y= -2x - 3
Answer:
y = 3
x = - 3
Step-by-step explanation:
First we represent "x" through "y"
y = x + 6
x = y - 6
Then we substatute this value instead of "x" in the other formula, and so we get...
y = - 2x - 3
y = - 2(y - 6) - 3
y = - 2y + 12 - 3
3y = 9
y = 3
Now that we know "y" we can find out "x" by doing...
x = y -6
x = 3 - 6
x = - 3
Can you guys help me with all 3 questions please would really appreciate it.
Answer:
Number 1 is 17 cents
Number 2 is 164.35
Number 3 is 213
Step-by-step explanation:
Please mark brainliest
Can someone please help me on this question if you know the answer.
Answer choices:
F. 1/4
G. 1/16
H. 1/2
J. 1/8
Answer:i need more info
Step-by-step explanation:
Will Give Brainy ( Geometry) look at picture please
Answer:
x=12 , y= 49
Step-by-step explanation:
X= 180 - (90+78)= 12
180-(90+41)= 49
y=49 (isosceles triangle)
Which expression represents the distance between -3 and 5 on the number line?
- 3+5
-3-5
1-3+51
1-3-51
Answer:
B
Step-by-step explanation:
Write 21.4 in decimal expanded form
Answer:
20+1+0.4
Step-by-step explanation:
to rite in decimal expanded form you need to separate the numbers.
we see that we have a 20 and a 1. This means we write 20+1. You also see that this number has a decimal, 0.4 so our final answer would be 20+1+0.4
Logx(x-3)=1 solve for x
what fraction of 7 2/5 is 49 1/3?
Answer:
8 1/6 / 1 7/8 = 196/45 = 4 16/45 ≅ 4.3555556
Step-by-step explanation:
Conversion a mixed number 8 1/6
to a improper fraction: 8 1/6 = 8 1/6 = 8 · 6 + 1/6= 48 + 1/6 = 49/6
To find new numerator:
a) Multiply the whole number 8 by the denominator 6. Whole number 8 equally 8 * 6/6 = 48/6
b) Add the answer from previous step 48 to the numerator 1. New numerator is 48 + 1 = 49
c) Write a previous answer (new numerator 49) over the denominator 6.
Eight and one sixth is forty-nine sixths
Conversion a mixed number 1 7/8
to a improper fraction: 1 7/8 = 1 7/8 = 1 · 8 + 7/8 = 8 + 7/8= 15/8
To find new numerator:
a) Multiply the whole number 1 by the denominator 8. Whole number 1 equally 1 * 8/8 = 8/8
b) Add the answer from previous step 8 to the numerator 7. New numerator is 8 + 7 = 15
c) Write a previous answer (new numerator 15) over the denominator 8.
One and seven eighths is fifteen eighths
Divide: 49/6 : 15/8 = 49/6 · 8/15 = 49 · 8/6 · 15 = 392/90 = 2 · 196 /2 · 45 = 196/45
Dividing two fractions is the same as multiplying the first fraction by the reciprocal value of the second fraction. The first sub-step is to find the reciprocal (reverse the numerator and denominator, reciprocal of 15/
8 is 8/15
) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators. In the next intermediate step , cancel by a common factor of 2 gives 196/45
.
In words - forty-nine sixths divided by fifteen eighths = one hundred ninety-six forty-fifths.
help right here ;----
Answer:
(5x+2)+(7x+3) and 12x+5
Step-by-step explanation:
Evaluate 2a-b for a=2 and b=3.
Answer:
1
Step-by-step explanation:
What is the equation for this line, in Slope Intercept Form (6,1) and (2,-1)
Answer:
y=1/2x-2
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(-1-1)/(2-6)
m=-2/-4
m=1/2
y-y1=m(x-x1)
y-1=1/2(x-6)
y=1/2x-6/2+1
y=1/2x-3+1
y=1/2x-2
How much paint is needed to paint a house ? Estimate or exact
Answer:
One gallon can of paint will cover up to 400 square feet, which is enough to cover a small room like a bathroom. Two gallon cans of paint cover up to 800 square feet, which is enough to cover an average size room. This is the most common amount needed, especially when considering second coat coverage.
Step-by-step explanation:
Answer:
well it depends on how big the house so... One gallon can of paint will cover up to 400 square feet, which is enough to cover a small room like a bathroom. Two gallon cans of paint cover up to 800 square feet, which is enough to cover an average size room. so about 2 maybe 3 gallons
Step-by-step explanation:
hope this is useful!
Which fraction is equivalent to the whole number 8?
A.1/8
B.2/10
C.12/8
D.16/2
Answer:
D: 16/2
Step-by-step explanation:
you take 16 and divide it by 2 making your answer 8
Pls help I really don’t get it
Answer:
9
Step-by-step explanation:
hope u understand sorry for bad photo
Answer:
x = 9
Step-by-step explanation:
[tex] \triangle ABC\sim \triangle ADE.... (given) [/tex]
[tex] \therefore \frac{AB}{AD} = \frac{BC}{DE}.... (csst) [/tex]
[tex] \therefore \frac{28}{20} = \frac{2x+3}{15}[/tex]
[tex] \therefore \frac{7}{5} = \frac{2x+3}{15}[/tex]
[tex] 5(2x+3) = 7\times 15[/tex]
[tex] 10x+15 = 105[/tex]
[tex] 10x = 105-15[/tex]
[tex] 10x = 90[/tex]
[tex] x = \frac {90}{10}[/tex]
[tex] x = 9[/tex]