Answers
Answer:
C) 27 degrees
Step-by-step explanation:
N+63=90
-63. -63
N=27
Related Questions
4. The__________ is the original figure.
A. image
B. per-image
C. enlargement
D. reduction
Answers
Answer:
he is the answer
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
Solve the equation 2(x-3) = 14
Answers
What is the product of 3.6 x 4.2
Answers
Answer:
15. 12
Step-by-step explanation:
just multiply them
What is the distance between the points (2, 1) and (14, 6) on a coordinate
plane?
Answers
Answer:
the answer is 13 units
Step-by-step explanation:
When a virus is placed on a tobacco leaf, small lesions appear on the leaf. To compare the mean number of lesions produced by two different strains of virus, one strain is applied to half of each of 8 tobacco leaves, and the other strain is applied to the other half of each leaf. The strain that goes on the right half of the leaf is decided by a coin flip. The lesions that appear on each half are then counted. The data are given below:
Leaf Strian 1 Strain 2
1 31 18
2 20 17
3 18 14
4 17 11
5 9 10
6 8 7
7 10 5
8 7 6
What is the number of degrees of freedom associated with the apropriate t-test for testing to see if there is a difference between the mean number of lesions per leaf produced by the two strains?
a. 7.
b. 8.
c. 11.
d. 14.
e, 16.
Answers
Answer: a. 7
Step-by-step explanation: Degrees of Freedom is the number of values "allowed" to vary. For example:
In the experiment above, the sample has 8 tobacco leaves. Two strains will be applied to each leaf. The decision of which strain goes to the right or left is random. Each strain have 7 possible leaves it can be applied, because, for the last, the eight leaf, there is no choice.
Therefore, the degrees of freedom for this experiment is 7.
It can also be calculated as
df = n - 1
df = 8 - 1
df = 7
URGENT
I put an answer already but I am not sure if it is right. I need a Confirmation.
Answers
Answer:
I think you are correct.
Step-by-step explanation:
Sorry if I am wrong
Pls help!!! Will mark Brainiest!
Factor each expression using the GCF. Check your work using the Distributive Property.
9. 3x + 12
10. 6x - 30
11. 20x - 16
12.-50x + 80
13. 77 + 22x
14. 21x - 14
Answers
Answer:
9.3(x+4)
10.6(x-5)
11.4(5x-4)
12.-10(5x-8)
13.11(7+2x)
14.7(3x-2)
Step-by-step explanation:
Kevin can travel 22 1/2 miles in 1/3 hours. What is his average speed in miles per hour
Answers
Answer:
67 1/2
Step-by-step explanation:
22 1/2*3
If 3/4 pounds of Fudge coast $6. 75, how much does 1 pound cost. Write as an equation.
Answers
Calculate the sample mean and sample variance for the following frequency distribution of heart rates for a sample of American adults. If necessary, round to one more decimal place than the largest number of decimal places given in the data. Heart Rates in Beats per Minute Class Frequency 51 - 58 6 59 - 66 3 67 - 74 11 75 - 82 13 83 - 90 4
Answers
Answer:
[tex]Mean = 68.9[/tex]
[tex]s^2 =18.1[/tex] --- Variance
Step-by-step explanation:
Given
[tex]\begin{array}{cccccc}{Class} & {51-58} & {59-66} & {67-74} & {75-82} & {83-90} \ \\ {Frequency} & {6} & {3} & {11} & {13} & {4} \ \end{array}[/tex]
Solving (a): Calculate the mean.
The given data is a grouped data. So, first we calculate the class midpoint (x)
For 51 - 58.
[tex]x = \frac{1}{2}(51+58) = \frac{1}{2}(109) = 54.5[/tex]
For 59 - 66
[tex]x = \frac{1}{2}(59+66) = \frac{1}{2}(125) = 62.5[/tex]
For 67 - 74
[tex]x = \frac{1}{2}(67+74) = \frac{1}{2}(141) = 70.5[/tex]
For 75 - 82
[tex]x = \frac{1}{2}(75+82) = \frac{1}{2}(157) = 78.5[/tex]
For 83 - 90
[tex]x = \frac{1}{2}(83+90) = \frac{1}{2}(173) = 86.5[/tex]
So, the table becomes:
[tex]\begin{array}{cccccc}{x} & {54.5} & {62.5} & {70.5} & {78.5} & {86.5} \ \\ {Frequency} & {6} & {3} & {11} & {13} & {4} \ \end{array}[/tex]
The mean is then calculated as:
[tex]Mean = \frac{\sum fx}{\sum f}[/tex]
[tex]Mean = \frac{54.5*4+62.5*3+70.5*11+78.5*13+86.5*4}{6+3+11+13+4}[/tex]
[tex]Mean = \frac{2547.5}{37}[/tex]
[tex]Mean = 68.9[/tex] -- approximated
Solving (b): The sample variance:
This is calculated as:
[tex]s^2 =\frac{\sum (x - \overline x)^2}{\sum f - 1}[/tex]
So, we have:
[tex]s^2 =\frac{(54.5-68.9)^2+(62.5-68.9)^2+(70.5-68.9)^2+(78.5-68.9)^2+(86.5-68.9)^2}{37 - 1}[/tex]
[tex]s^2 =\frac{652.8}{36}[/tex]
[tex]s^2 =18.1[/tex] -- approximated
A coffee pot had 1
1/2 pints of coffee.
After a mug was
filled, there were 1
pint left in the pot.
How many ounces of
coffee were in the
mug?
Answers
Answer:
8 ounces
Step-by-step explanation:
Since there was 1 pint left, that means the mug had 1/2 pints of coffee.
Now, convert this to ounces. There are 16 ounces in a pint, so we can find how many ounces there were by multiplying 16 by 1/2
16(1/2)
= 8
So, there were 8 ounces of coffee in the mug
A shoe store uses a 60% markup for all of the shoes it sells. What would be the selling price of a pair of shoes that has a wholesale cost of $55?
Answers
The selling price should be $88
Given that,
The markup percentage is 60% and the wholesale cost is $55.calculation:= $55 + (60% of $55)
= $55 + $33
= $88
Learn more about the price here: https://brainly.com/question/25300841?referrer=searchResults
Answer:
88
Step-by-step explanation:
What is the value of the expression? 21.18
÷
6 =
ASAP PLEASE
Answers
Answer:
3.53
Step-by-step explanation:
I checked it using a calculator. :)
12 children in art class have to share 8 packages of clay so that everyone gets the same amount. How much clay can each child have?
Answers
Answer:8 y sobran 4
Step-by-step explanation:
8entre 4
Answer:
1.5
Step-by-step explanation:
Which one is the right answer
Answers
Answer:
The second one. y = .2x + 1
Step-by-step explanation:
1 = .2*0 + 1
1.4 = .2*2 + 1
And so on
Hope this helps :)
A phone company has two long distance calling plans. The first plan is $25 per month plus $0.01 per minute of long distance calling after the first 100 minutes. The second plan is $10 per month plus $0.05 per minute of long distance calling.
How many minute of long distance calls will it take for the plans to cost the same amount?
Answers
Answer:
286 minutes
Step-by-step explanation:
can you give brainlest or good review
Answer:
Hello!
Let's call X to the number of minutes of long-distance calls you plan to make.
The cost of plan A is given by 25%2B0.05X
The cost of plan B is given by 5%2B0.12X
Plan B is advantageous when its cost is lower than plan A's. Therefore, we set the inequality
5%2B0.12X+%3C+25%2B0.05X
And then solve for X. This will give us the range of minutes for which B is more convenient.
Subtract 5 from both sides of the inequality to get:
0.12X+%3C+20%2B0.05X
Now subtract 0.05X:
0.12X+-+0.05X+%3C+20
0.07X%3C20
Finally, divide by 0.07 to get:
X+%3C+20%2F0.07
X++%3C+285.71
So plan B is advantageous if you plan to use less than 286 minutes of long distance calls.
I hope this helps!
Step-by-step explanation:
Which amount is greater, 5 feet or 2 yards?
Answers
Answer:
2 yards is greater then 5 feet
Step-by-step explanation:
A yard is 3 feet, 3+3=6 I hope this helps!
Which line is parallel to the graph of the line y=-2/3x-5?
y=-3/2x-1
y=-2/3x-7
y=2/3x+2
y=3/2x+6
Answers
Brainliest to best answer :D
The difference of two numbers is 63. The sum of two numbers is 111. What are the two numbers?
Answers
Answer:
Step-by-step explanation:
Let b>a
b-a=63
b=63+a
a+b=111, substituting 63+a from above in this equation gives you
a+63+a=111
2a+63=111
2a=48
a=24, since b=63+a
b=63+24
b=87 so the two numbers are
24 and 87
Please help I don't get this question
Answers
Answer:
10x+30
Step-by-step explanation:
Distributive property is distributing what is in the parentheses.
To do that on this problem you have multiply each of these numbers by 10!
10 times x is 10x
10 times 3 is 30
Put them back together and you get 10x+30!
I hope this helps, and have a great day! :)
P.S. If you need a better explanation I can help. I just didn't want to make this to long. :D
Solve p
0.6p+4.5=22.5
I need an answer before 11:59 pm
Answers
-7(y – 5) + 8 = -27
help?
Answers
Answer:
10
Step-by-step explanation:
-7y + 35 + 8 = -27
collect like terms
-7y = -27 - 35 - 8
-7y = -70
y= -70/-7
y= 10
it takes 15 cups of water to fill 1/3 bucket. How much water is needed to fill 1 bucket?
Answers
15 ÷1\3 = 15 x 3 =45 cups
Hope this helps (:
Answer:
45 cups
Step-by-step explanation:
HELP PLS 30 PTS !!!!!!!!!!!!
Answers
Answer:
its the second one bc if u multiply 8.34 times 5305 it equals to 44243.7 the diameter of the pool was jus to throw u off it was unneeded information.
Step-by-step explanation:
Enter a number in the space provided to make the equation true.
Answers
Answer:
4.5
Step-by-step explanation:
5 - 9.5 = 4.5 so 5 + 4.5 = 9.5
Solve step by step:
n + 8 = -10
Answers
Answer:
n=-18
Step-by-step explanation:
subtract 8 from both sides.
then you do -10 subtracted by 8 and thats -18.
What is 5 x 5 is it 25 or 35
Answers
Answer:
25 7 x 5 is 35
Step-by-step explanation:
hope this helps have a good rest of your afternoon :) ❤
Answer:
5 times 5 is 25.
Step-by-step explanation:
Hope this helps you dude
s h r e k (in a maid outfit)
Help me from 3 through 8
Answers
Answer:
3)x=−9 and x=4
4)x=−12 and x=−5
5)x=8 and x=14
6)x=−7 and x=3
7)x=-1 2/3 and x = 1/4
8)x=2/5
Step-by-step explanation:
Hope this helps
If f(x) = 3x - 7, find f(-1)
Answers
Add +7 to each side
6 = 3x
Divide each side by 3
X = 2
f(-1) = 3 * 2 - 7
What type of jobs offer commissions?
Answers
Answer:
Sales Engineers. ...
Wholesale and Manufacturing Sales Representatives. ...
Securities, Commodities, and Financial Services Sales Agents. ...
Advertising Sales Agent. ...
Insurance Sales Agent. ...
Real Estate Brokers and Sales Agents. ...
Travel Agents.
Step-by-step explanation:
What type of jobs offer commissions?
-Sales Engineers
-Wholesale and Manufacturing Sales Representatives
-Securities, Commodities, and Financial Services Sales Agents
-Advertising Sales Agent
-Insurance Sales Agent
-Real Estate Brokers and Sales Agents
-Travel Agents