Answers
Answer:
b=24
Step-by-step explanation:
VT^2 + (2b)^2 = 67^2
VT^2 + (b+24)^2 = 67^2
-> (2b)^2 = (b+24)^2
-> 2b = b+ 24
-> b = 24
The work is on the other guys answer
Related Questions
What is B H and area of the parallelogram
Answers
Answer:
see below
Step-by-step explanation:
The base is 16ft
The height is 10 ft
We can find the area by
A = bh
A = 10*16 = 160 ft^2
A tire salesman was paid a $25.90 commission after one of his customers purchased a set of new tires for $370. What is the commission rate?
Answers
Answer:
7%
Step-by-step explanation:
25.9÷370=0.07×100=7%
Identify Y, inscribed angels
Answers
Answer:
y = 2
Step-by-step explanation:
PQ is a diameter, so arc PQ has a central angle of 180°. Inscribed angle PRQ has a measure half that, or 90°. (An inscribed triangle with one side a diameter is a right triangle.)
Then you can write ...
53y -16 = 90
53y = 106 . . . . . add 16
y = 106/53 = 2 . . . . divide by the coefficient of y
y = 2
The owner-operator of a hardware store in a Virginia suburb along the banks of the Potomac River wants to learn several things about his customers and his business. Over the past 5 years, he has kept meticulous records on the contact information for his most frequent customers through a point-of-sale information system his cashiers use. He offers attractive discounts on every purchase to customers who have provided their contact information (name, phone number, home address, e-mail address) for inclusion in the database. When the customer provides his/her phone number to the cashier during checkout, the discount is activated in the cash register and all information about the purchase (products, quantities, prices) is captured by the point-of-sale system and stored in the master database. The system tracks the number of check-outs made by database customers vs. check-outs made by customers not in the database. In the past year, 80% of the 50,000 checkouts have been made by customers in the database. The owner-operator wants to survey his customers to learn their level of satisfaction with his business and to learn their attitudes toward certain changes he is contemplating.
Which of the following survey methods would most likely produce a representative sample of the owner's customer population at the least cost:
a. telephone calls to 5,000 randomly selected people in the Virginia suburb where the store is located
b. mailers to 5,000 randomly selected homes in the same zip code as the store
c. e-mails to 5,000 randomly selected customers in the store's database
Which of the following questions on customer satisfaction with the owner's business is unblased:
a. Do you like our store hours during the winter season?
b. How likely is it that you will make your next hardware purchase from our store?
c. Would you buy more from our store if we lowered our prices?
d. Which of our competitors do you buy from when you do not buy from our store?
Which of the following is the best the method for randomly selecting customers for the survey to produce representative results:
a. choose young adults aged 25-40 for the survey
b. choose half men and half women for the survey
c. assign numbers to each customer record and use a random number generator to pick customers for the survey
d. choose customers with last names that begin with a vowel
Which of the following statements is most correct about the minimum size of the sample required for confidence in the results?
a. the minimum size of the sample is 10
b. the minimum size of the sample depends upon the size of the population
c. the minimum size of the sample depends on the level of confidence required in the result
d. the minimum size of the sample depends on the standard deviation of the population
Which of the following statements is most correct about response rates and sample sizes?
a. It is preferable to have a high response rate from a randomly chosen small sample.
b. it is preferable to have a low response rate from a randomly chosen large sample.
c. It is preferable to have a low response rate from a randomly chosen small sample.
d. None of the above statements correctly describe response rates and sample sizes.
Answers
Answer: a for the seccond and b for the first
Step-by-step explanation:
help help help help help
Answers
b = 36.0
Step-by-step explanation:
These two triangles are similar, so they can have a ratio that is equal to one another. We need to pick a side on one of the triangles and match the corresponding side on the other triangle, an example of this would be 6/27. Something like 6/45 would be incorrect since they are totally different corresponding sides. For the other side of the ratio, you will want to keep the same pattern. So if you do the left triangle first in the first ratio, keep it the same for the other. An example of this would be 6/27 = 8/b. It would be incorrect to put 6/27 = b/8.
There are numerous different ratios you can do but this is the one I did...
[tex]\frac{10}{45}=\frac{8}{b}[/tex]
Notice how I used both of the triangles corresponding sides and followed the pattern of which triangle came first.
Now we can solve by cross multiplying.
[tex]10*b=10b[/tex]
[tex]45*8=360[/tex]
[tex]10b=360[/tex]
Divide.
[tex]360/10=36[/tex]
b = 36
Micah is filling up his cone-shaped cup with water. The cup (as shown) has a diameter of 72 millimeters and a slant height of 45 millimeters. How much water can Micah fill in his cup?
Answers
Answer:
Micah can put 61072.56 ml³ of water in his cup.
Step-by-step explanation:
The volume of a cone is given by the following formula:
[tex]V = \frac{h\pi r^{2}}{3}[/tex]
In which h is the height and r is the radius.
The radius is half the diameter.
In this question:
Radius of 72/2 = 36 ml. So [tex]r = 36[/tex]
Height of 45 ml, so [tex]h = 45[/tex]
The dimensions are in ml, so the volume will be in ml³.
So
[tex]V = \frac{h\pi r^{2}}{3}[/tex]
[tex]V = \frac{45\pi*(36)^{2}}{3}[/tex]
[tex]V = 61072.56[/tex]
Micah can put 61072.56 ml³ of water in his cup.
Answer:
The answer is 11664pimm^3
Step-by-step explanation:
Volume of a sphere in terms of π with a radius of 2
Answers
Answer:
33.51
Step-by-step explanation:
You need to use the equation [tex]\frac{4}{3} \pi r[/tex]³.
Hope this helps.
Answer:10.7π
Step-by-step explanation:
radius=r=2
volume of sphere=4/3 x π x r x r x r
Volume of sphere=4/3xπx2x2x2
Volume of sphere=(4xπx2x2x2) ➗ 3
Volume of sphere=32π ➗ 3
Volume of sphere=10.7π
How to factor Trinomial?
Answers
Answer:(x+10)(x+9)
Step-by-step explanation:
x^2+19x+90
x^2+10x+9x+90
x(x+10)+9(x+10)
(x+10)(x+9)
The ratio of the number of student in mr. Moore’s class compared to the number of student in miss Henry’s class is 5:4. The ratio of the number students in miss Henry’s class compared to the number of students on mr. Wilson’s class is 8:9. What is the ratio of number of students in mr. Moore’s class to mr. Wilson’s class?
Answers
Answer:
10:9
Step-by-step explanation:
First ratio is 5:4. 4 is equal to Henry class
If you múltiply the ratio by 2 you get
10:8, This ratio can be compared because now Henry class has 8
2(5:4)
10:8
8:9
Meaning that the answer is 10:9
The require ratio of number of students in Mr. Moore's class to Mr. Wilson's class is 10:9
What is Ratio?The ratio can be expression as how many times one number contain another number.
For example, If any bag contain 4 apples and 8 oranges then the ratio of apple to orange is 4:8 while the ratio of the orange to the apple is 8:2
How to find ratio?Consider M denote the number student present in the Mr. Moore's class
similarly H denote the number of student in miss Henry's class and W denote the number of student present in Mr. Wilson's class
then we have given that
M : H = 5 : 4 or
[tex]\frac{M}{H} = \frac{5}{4}[/tex]
Also we have H : W = 8 : 9
[tex]\frac{H}{W} = \frac{8}{9}[/tex]
Now multiply these two equations we have
[tex]\frac{M}{H}\times \frac{H}{W}=\frac{5}{4}\times\frac{8}{9}[/tex]
[tex]\frac{M}{W}= \frac{10}{9}[/tex]
The ratio of number of student in Mr. Moore's class to Mr. Wilson's class is 10:9
This is the conclusion to the answer.
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You commute to work by riding a bus each day for $4.25 round trip. A weekly pass is available for $19.75 a week. If you work 5 days a week, how much can you save by buying the pass?
Answers
Answer:
$1.50
Step-by-step explanation:
The cost of 5 daily fares is ...
5($4.25) = $21.25
The difference between that and the cost of a pass is ...
$21.25 -19.75 = $1.50
You can save $1.50 per week by buying the pass.
Help plz? With show work !!! Plzzz
Answers
Answer:
B; D
Step-by-step explanation:
5) 3x + 7 = 6x - 11 -->
18 = 3x -->
6 = x (B)
6) (t+6)(10) = (t)(12) -->
10t + 60 = 12t -->
60 = 2t -->
30 = t (D)
Jessica bought the ingredients to make chicken soup, and wanted to make a double batch, which would be 18 cups of soup. A quick Google search told her that this was 259.9 cubic inches. She hoped the soup pot below would be big enough. The soup pot is 9 inches tall with a radius of 3.5 inches. What is the volume of the soup pot? Answer choices are rounded to the nearest tenth cubic inch. 169.6 cubic inches 890.6 cubic inches 197.9 cubic inches 346.4 cubic inches
Answers
Answer: 346.4 in^3
Step-by-step explanation:
The pot can be thinked as a cylinder:
The volume of a cylinder is equal to:
V = (pi*r^2)*h
where h is the height, r is the radius and pi = 3.1416
Here we have that: r = 3.5in, h = 9in.
Then the volume is:
V = 3.1416*(3.5in)^2*9in = 346.4in^3
find the missing measurement lesson 13.1, 13.2 A=62.5 length is 14 and width is 11 what is the highth.
Answers
Answer:
11.36
Step-by-step explanation:
A=1/2*b*h
62.5=1/2*11*x(height)
62.5= 1/2*11*x
62.5=5.5*x
X=62.5/5.5
=11.36
22. Find the perimeter of the square:
28
Answers
Answer:
56√2 ≈ 79.20
Step-by-step explanation:
The hypotenuse of an isosceles right triangle is √2 times the side length, so the side length here is ...
s·√2 = 28
s = 28/√2
The perimeter is 4 times the side length, so is ...
P = 4s = 4·28/√2
= 4·28·(√2)/2 . . . . . multiply by (√2)/(√2) to rationalize the denominator
= 56√2 ≈ 79.195959
The perimeter of the square is 56√2, about 79.20 units.
Find the digit in the tenths place of 25.391
Answers
Answer:
Step-by-step explanation: The digit in the tenths place will be 1 place to the right of the decimal point.
So in this problem, the digit in the tenths place is 3.
Hector invests $20,000 at age 21. He hopes the investment will be worth $200,000 when he turns 40. If the interest compounds continuously, approximately what rate of growth will he need to achieve his goal? Round to the nearest tenth of a percent.
Answers
Answer:
12.12%
Step-by-step explanation:
We have that the formula is given by:
A = p * e ^ (r * t)
From here, we know that A = 200000; p = 20000 and the time we can calculate 40 - 21 = 19
if we replace we have:
200000 = 20000 * e ^ (19 * r)
we must calculate r:
e ^ (19 * r) = 200000/20000
e ^ (19 * r) = 10
19 * r = ln 10
r = ln 10/19
r = 0.1212
In other words, the rate of growth is 12.12%
Answer:
12.1%
Step-by-step explanation:
Many fundraisers ask for donations using e-mail and text messages. The paper "Now or Never! The Effect of Deadlines on Charitable Giving: Evidence From Two Natural Field Experiments" ( Journal of Behavioral and Experimental Economics [2016]: 1-10) describes an experiment to investigate whether the proportion of people who make a donation when asked for a donation by e-mail is different from the proportion of people who make a donation when asked for a donation in a text message. In this experiment, 1.32% of those who received and opened an e-mail request for a donation and 7.77% of those who received a text message asking for a donation actually made a donation. Assume that the people who received these requests were randomly assigned to one of the two groups (e-mail or text message) and suppose that the given percentages are based on sample sizes of 2000 (the actual sample sizes in the experiment were much larger).
a. The study described is an experiment with two treatments. What are the two treatments?
b. Use a 90% confidence interval to estimate the difference in the proportions who donate for the two different treatments
c. Is there convincing evidence that the proportion who make a donation is not the same for the two different methods? Carry out a hypothesis test using a significance level of 0.05.
d. Is there convincing evidence that the proportion who make a donation after receiving an email is smaller than the proportion who make a donation after receiving a text message? Carry out a hypothesis test using a significance level of 0.10.
Answers
Answer:
IT SAYS YOU IN COLLEGE SOOO YOU SHOULD BE ABLE TO ANSWER IT YOUR SELF
Step-by-step explanation:
anyone knows the answer
Answers
Answer:C
Step-by-step explanation:
3.1 x 10^(-4) x 8.5 x 10^(-2)
3.1 x 8.5 x 10^(-4) x 10^(-2)
26.35 x 10^(-4-2)
26.35 x 10^(-6)
2.635 x 10^1 x 10^(-6)
2.635 x 10^(1-6)
2.635 x 10^(-5)
Find the area of a circle with a diameter of 15 feet
Answers
Answer:
15[tex]\pi[/tex]
Step-by-step explanation:
with diameter
A=[tex]\pi[/tex]d
A=[tex]\pi[/tex](15)
A=15[tex]\pi[/tex]
Because...
The diameter is two times the radius and the formula for the area is pi r squared. So multiply half of the diameter, ( 7.5 ) by itself to square it and then multiply that by pi I did it by 3.14 so it’s approximately 176.625
I have the brainy app on my phone, and I have plus on my phone, but when I try to log in on my computer< it says I still need to upgrade, how do I use brainy plus on my computer?
Answers
to use brainy plus on your computer you need to log in with the same account you used on the phone
Answer:
try to restart and delete then re download the app:)
Step-by-step explanation:
Which of the following expressions could be used to find the sale price of an item that costs d dollars if it is on sale for 30% off?
Answers
Answer:
d-30%d
Step-by-step explanation:
What equations have many solutions
76x+76=76x+76
76x+76=-76x+76
-76x+76=-76x+76
-76x+76=76x+76
Answers
Answer:
[tex]76x+76=76x+76\\-76x+76=-76x+76[/tex]
Step-by-step explanation:
They have the same values and the same signs, therefore, they cancel each other giving a result of 0=0
Answer:
0
Step-by-step explanation:
This equation actually has more than one equal sign
Round 38 to the nearest ten. Enter your answer in the box below.
Answers
Answer:
40
Step-by-step explanation:
Answer:
40
Step-by-step explanation:
Here are the rules;
• If the number undergoing the rounding is followed by 5, 6, 7, 8, or 9, round the number up
• If the number undergoing the rounding is followed by 0, 1, 2, 3, or 4, round the number down.
Example: 32 and 38 rounded to the nearest ten is 30 and 40 respectively.
Two trains leave stations 390 miles apart at the same time and travel toward each other. One train travels at 70 miles per hour while the other travels at 80 miles per hour. How long will it take for the two trains to meet?
Do not do any rounding.
Answers
Answer:
Let's denote:
x: the time both trains traveled.
Then, we have:
70x + 80x = 390
=> 150x = 390
=> x = 390/150 = 2.6 hour
Answer:
2.6 hours ( or 2 hours 36 minutes).
Step-by-step explanation:
The combined speed is 70+80 = 150 mph.
Speed = distance / time, so time = distance / speed.
So the time when they will meet
= 390 / 150
= 2.6 hours.
In a math class of 32 students, 18 boys and 14 are girls. On a unit test, 5 boys and 7 girls made an A grade. A student is chosen at random from the class. What is the probability of choosing a girl or an A student?
Answers
Answer:
14+7=21
The probability is 21/32 or 65,625%
Step-by-step explanation:
You just add the number of girl students (including the ones that got an A) with the number of boys that got an A
Then you divide that number by the total of students (32)
The probability of choosing a girl or an A grade student is 19/32.
What is probability ?Probability is the chance or possibility to occur any selected event.
If the number of possible outcomes of an event is divided by the total number of outcomea of the event then it is called probability of that particular event.
What is the required probability ?In a maths class,
The total number of students = 32
No. of boys = 18 & no. of girls = 14
On an unit test, 5 boys made an A grade whereas 7 girls made an A grade.
The probability of choosing a girl = 14/32 = P(A) (say)
And, The probability of choosing an A grade student = 12/32 = P(B) (say)
Hence, the probability of choosing an A grade student who is a girl = P(A∩B) = 7/32
∴ The probability of choosing a girl or an A grade student =
P(A∪B) = P(A)+P(B)-P(A∩B)
= 14/32+ 12/32-7/32
= 26/32-7/32
= 19/32
Hence, The required probability is 19/32.
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Sophie needs 420 g of flour to bake a cake. Her scales only weigh in ounces. How many ounces of flour does she need? 1 ounce = 25 grams ounces
Answers
Answer:
16.8 ounces
Step-by-step explanation:
(420 x 1)/ 25 = 16.8
Answer:
16.8 ounces
Step-by-step explanation:
Hope that helped
A local eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. The owner of the store has determined that home delivery will be successful if the average time spent on the deliveries does not exceed 34 minutes. The owner has randomly selected 23 customers and has delivered pizzas to their homes in order to test if the mean delivery time actually exceeds 34 minutes. Suppose the P-value for the test was found to be 0.0290. State the correct conclusion
Answers
Answer:
We conclude that the mean delivery time actually exceeds 34 minutes.
Step-by-step explanation:
We are given that the owner of the store has determined that home delivery will be successful if the average time spent on the deliveries does not exceed 34 minutes.
The owner has randomly selected 23 customers and has delivered pizzas to their homes in order to test if the mean delivery time actually exceeds 34 minutes. Suppose the P-value for the test was found to be 0.0290.
Let [tex]\mu[/tex] = average time spent on the deliveries.
So, Null Hypothesis, [tex]H_0[/tex] : [tex]\mu[/tex] [tex]\leq[/tex] 34 minutes {means that the mean delivery time is less than or equal to 34 minutes}
Alternate Hypothesis, [tex]H_A[/tex] : [tex]\mu[/tex] > 34 minutes {means that the mean delivery time actually exceeds 34 minutes}
Now, the decision rule based on the P-value to whether null hypothesis should be accepted or rejected is given by;
If the P-value of test statistics is less than the level of significance, then we will reject our null hypothesis.If the P-value of test statistics is more than the level of significance, then we will not reject our null hypothesis.Here, we assume that the level of significance is 5%.
Since, the P-value of test statistics is less than the level of significance as 0.029 < 0.05, so we have sufficient evidence to reject our null hypothesis.
Therefore, we conclude that the mean delivery time actually exceeds 34 minutes.
The value of 8 in the hundreds place is how many times the value of the 8 in the tens place
Answers
Answer:8 in the hundreds place is 10 times the value of the 8 in the tens place.
Step-by-step explanation:its easy
The hundreds place is 10 times of the tens place.
What is Algebra?The analysis of mathematical representations is algebra, and the handling of those symbols is logic.
Division means the separation of something into different parts, sharing of something among different people, places, etc.
The value of 8 in the hundreds place. If the value of the 8 is in the tens place. Then the number will be 880.
Then the number of times of the hundreds place and tens place will be given by the division of the numbers 800 and 80.
⇒ 800 / 80
⇒ 10
The hundreds place is 10 times of the tens place.
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Find the limit of the function by using direct substitution lim (x^2+8x-2) x-> 2
Answers
Answer:
[tex] lim_{x \to 2} x^2 +8x -2 [/tex]
And using the properties of limit we got:
[tex] lim_{x \to 2} x^2 +8 \lim_{x \to 2} x - lim_{x \to 2} 2 [/tex]
And replacing we got:
[tex] 2^2 + 8 (2) -2 = 4 +16-2 =18[/tex]
Step-by-step explanation:
For this case we want to find this limit:
[tex] lim_{x \to 2} x^2 +8x -2 [/tex]
And using the properties of limit we got:
[tex] lim_{x \to 2} x^2 +8 \lim_{x \to 2} x - lim_{x \to 2} 2 [/tex]
And replacing we got:
[tex] 2^2 + 8 (2) -2 = 4 +16-2 =18[/tex]
The Senate in a certain state is comprised of 58 Republicans, 39 Democrats, and 3 Independents. How many committees can be formed if each committee must have 3 Republicans and 2 Democrats?
Answers
YuAnswer:
Step-by-step explanation:
I really don't know the answer sorry
