Answer:
No
Step-by-step explanation:
for it to be a right triangle, a² + b² = c². C must be the larger of the 3 sides, which in this case is 18. if you substitute 8 for a and 15 for b, you do not get C = 18, meaning that this is not a right triangle
When you combine zero with the set of natural numbers, you get the set of
whole numbers.
OA. True
OB. False
SUBMIT
can you please explain the answer to me
Answer:
[tex]b=\sqrt{7}[/tex]
Step-by-step explanation:
When we solve for this we should always remember this formula [tex]a^2+b^2=c^2[/tex] and since we already know a and c we can plug that in to find out what b could be but we won't actually solve it.
[tex]a^2+b^2=c^2\\3^2+b^2=4^2\\9+b^2=16\\b^2=7\\\sqrt{b^2}=\sqrt{7}\\b=\sqrt{7}[/tex]
So b would equal whatever the square root of 7 is.
write a decimal division problem that has an estimated quotation of 4. explain how to get the estimation
9514 1404 393
Answer:
15.8 ÷ 3.9
Step-by-step explanation:
To make up this problem, we can start with two numbers whose quotient we know is 4, such as 16 and 4. Then we can choose two numbers that round to these values, such as 15.8 and 3.9
__
The problem 15.8 ÷ 3.9 has an estimated quotient of 4. The estimate is found by rounding each value to the nearest integer and finding the quotient of those numbers: 16/4 = 4.
_____
Additional comment
The actual quotient is 4 2/39, about 4.05128.
0.12 cubic meters of silver which she needs to make into 9.9e4 coins of thickness 2 mm. If she uses all of the silver, what is the diameter in centimeters of each coin
Answer:
The diameter of each coin is approximately 2.778 centimeters.
Step-by-step explanation:
According to the statement, 0.12 cubic meters ([tex]1.20\times 10^{8}\,mm^{3}[/tex]) were used to produce 99000 coins. First, we calculate the volume of each coin ([tex]V_{c}[/tex]), measured in cubic meters, by dividing the total volume by the number of coins. That is:
[tex]V_{c} = \frac{1.20\times 10^{8}\,mm^{3}}{99000}[/tex]
[tex]V_{c} =1212.121\,mm^{3}[/tex]
Then, diameter ([tex]D[/tex]), measured in milimeters, can be derived from the following volume formula:
[tex]V_{c} = \frac{\pi}{4}\cdot D^{2}\cdot h[/tex] (1)
Where [tex]h[/tex] is the thickness of the coin, measured in milimeters.
If we know that [tex]h = 2\,mm[/tex] and [tex]V_{c} =1212.121\,mm^{3}[/tex], then the diameter of each coin is:
[tex]D^{2} = \frac{4\cdot V_{c}}{\pi\cdot h}[/tex]
[tex]D = 2\cdot \sqrt{\frac{V_{c}}{\pi\cdot h} }[/tex]
[tex]D = 2\cdot\sqrt{\frac{1212.121\,mm^{3}}{\pi\cdot (2\,mm)} }[/tex]
[tex]D \approx 27.779\,mm[/tex]
The diameter of each coin is approximately 2.778 centimeters.
Two silos are 25 meters apart. The height of the shorter silo is 23 meters. The angle of
elevation from the shorter silo to the taller silo is 30°. What is the height of the taller silo?
*see attachment for diagram
Answer:
37 m
Step-by-step explanation:
First, use trigonometric ratio to find the distance between the top of the shorter silo to the top of the taller silo.
Let the distance between the top of the smaller silo and the top of the taller silo be x.
Thus, we would have:
Tan 30 = opp/adj = x/25
Tan 30 = x/25
Multiply both sides by 25
25*Tan 30 = x
x = 14 m (nearest meter)
The height of the taller silo = height of the smaller silo + x
= 23 m + 14 m
= 37 m
plzz read whole thing and helpppppp
Renting video games from Store S costs $2.50 per game plus a monthly fee of $5.00. Renting video games from Store T costs $5.00 per game with no monthly fee. The monthly cost to rent video games depends on the number of video games, v , rented. Which inequality represents the situation when the monthly cost at Store S is less than the monthly cost at Store T?
a.7.5 v 5 v
d.2.5 v + 5 > 5 v
Answer:
2.5v + 5 < 5v is the correct answer.
Step-by-step explanation:
Given that:
Cost to rent one game at store S = $2.50
Monthly fee = $5.00
Let,
v be the number of video games.
Total cost = 2.50v + 5
Cost to rent one game at store T = $5.00
y = 5v
Now,
Store S < Store T
2.50v + 5 < 5v
Hence,
2.5v + 5 < 5v is the correct answer.
Need help please. I answer 3.5 quarts and 2 oz, but the answer is wrong. I don't know why.. Please help me out... Thank you.
Note: I used this 1 quartz = 2 pints
and 1 gallon = 4 quarts = 8 pints....I either convert from gallon to pints then convert back to quart ( for before and after), or convert from gallon to quart directly.
Answer:
i think its 32 pints
Step-by-step explanation:
im pretty sure but sorry if im wrong ❤️
The remaining honey in the beehive is 4 gallons and 2 quarts, or 4 quarts and 2 ounces.
we need to convert the given measurements to quarts and ounces and then subtract them from the original 5 gallons.
1 gallon is equal to 4 quarts, and 1 quart is equal to 32 ounces.
4 gallons can be converted to quarts by multiplying by 4:
4 gallons × 4 quarts/gallon = 16 quarts
1 pint is equal to 2 cups, and 1 cup is equal to 8 fluid ounces.
1 pint and 2 ounces can be converted to ounces:
1 pint × 2 cups/pint × 8 ounces/cup = 16 ounces
2 ounces (already in ounces) = 2 ounces
Now, let's add up the converted measurements:
16 quarts + 16 ounces + 2 ounces = 16 quarts and 18 ounces
To find the remaining honey, we subtract the converted measurements from the original 5 gallons:
5 gallons - 16 quarts - 18 ounces = 4 gallons and 2 quarts
To learn more on Conversion factor click:
https://brainly.com/question/30567263
#SPJ6
Three potential employees took an aptitude test. Each person took a different version of the test. The scores are reported below. Norma got a score of 84.5; this version has a mean of 67.5 and a standard deviation of 10. Rebecca got a score of 306.5; this version has a mean of 293 and a standard deviation of 27. Morgan got a score of 8.38; this version has a mean of 7.1 and a standard deviation of 0.8. If the company has only one position to fill and prefers to fill it with the applicant who performed best on the aptitude test, which of the applicants should be offered the job
Answer:
Norma should be offered the job.
Step-by-step explanation:
For Norma;
Population mean; μ = 67.5
Sample mean; x¯ = 84.5
standard deviation; σ = 10
Formula for the test statistic is;
z = (x¯ - μ)/σ
z = (84.5 - 67.5)/10
z = 1.7
For Rebecca;
Population mean; μ = 293
Sample mean; x¯ = 306.5
standard deviation; σ = 27
Formula for the test statistic is;
z = (x¯ - μ)/σ
z = (306.5 - 293)/27
z = 0.5
For Morgan;
Population mean; μ = 7.1
Sample mean; x¯ = 8.38
standard deviation; σ = 0.8
Formula for the test statistic is;
z = (x¯ - μ)/σ
z = (8.38 - 7.1)/0.8
z = 1.6
The person with highest z-score is Norma and as such he should get the job.
Use slopes to determine if the lines -7x-2y=-8 and 2x+7y=-3 are perpendicular or not
Answer:
Since slopes of both lines are not negative reciprocals. Therefore Lines are not perpendicular to each other
Step-by-step explanation:
Slope of -7x-2y=-8 is -7/2
Slope of 2x+7y=-3 is -2/7
For perpendicular lines slopes are negative reciprocals of each other
Select all expressions below that are equivalent to (3^5)^3.
(3^3)^5
3^8
3^15
(3^1)^15
(3^2)^7
Ryan is building a tree house it will take 13 1/4 hours to complete he can work on the tree house 1 1/2 hours each day how many days will it take Ryan to complete the house
One hundred rats with mothers that were exposed to high levels of tobacco smoke during pregnancy were put through a simple maze. At the outset, the maze required the rats to make a choice between going left and going right. Eighty of the tats went right when running the maze for the first time. Assume that the 100 rats can be considered an SRS from the population of all rats born to mothers who were exposed to high levels of tobacco smoke during pregnancy. (Note that this assumption may or may not be reasonable, but researchers often assume that lab rats are representative of large populations because they are often bred to have uniform characteristics.) Let p be the proportion of rats in this population that would go right when running the maze for the first time. Determine a 90% confidence interval for p. Show as much work as is possible.
Answer:
The 90% confidence interval for pis (0.7342, 0.8658).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].
For this problem, we have that:
100 rats mothers, 80 went right. So [tex]n = 100, \pi = \frac{80}{100} = 0.8[/tex]
90% confidence level
So [tex]\alpha = 0.1[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.1}{2} = 0.95[/tex], so [tex]Z = 1.645[/tex].
The lower limit of this interval is:
[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.8 - 1.645\sqrt{\frac{0.8*0.2}{100}} = 0.7342[/tex]
The upper limit of this interval is:
[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.8 + 1.645\sqrt{\frac{0.8*0.2}{100}} = 0.8658[/tex]
The 90% confidence interval for pis (0.7342, 0.8658).
Solve 4(5x+2)=14x+32
Answer:
x=4
Step-by-step explanation:
4(5x+2)=14x+32
20x+8 = 14x+32
20x-14x+8=14x-14x +32 (Both side +14x)
6x+8=32 (cancel 14x -14x)
6x+8-8=32 -8(both side -8)
6x=24 (both side divide 6)
6x/6=24/6
x=4
Answer:
34x+34
Step-by-step
20x+2=14x+32
20x+14x=2+32
34x+2+32
2+32=34
34x=34
WG-W Online Textboo
WOODALFEPNSNJ
Homework 6.4-6.6
Question 8 of 13 (1 point) | Question Attempt: 1 of Unlimited
Tin
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The Watson family and the Nelson family each used their sprinklers last summer. The water output rate for the Watson family's sprinkler was 35 L per hour. The
water output rate for the Nelson family's sprinkler was 25 L per hour. The families used their sprinklers for a combined total of 60 hours, resulting in a total
water output of 1700 L. How long was each sprinkler used?
Note that the ALEKS graphing calculator can be used to make computations easier.
Answer:
We have two variables W and NW= 35 L N = 25L Total: 60 hrs respectfully between W and N Total Water: 1700 L 35W + 25N = 1700 (1)W + N = 60 (2)Just substitute!N = 60 + W 35W + 25(60 + W) = 170035 W + 1500 + 25W = 170060W + 1500 = 170060W = 200 W = 3.33 Now solve for NPlz help this is due tonight
A bicycle is on sale for 20% off. The bicycle regularly costs 129.95 What is the sale price
Calculator Use
Calculate the sale price you will pay for an item based on the type of discount in the sale promotion:
Percent off list price
Fraction off list price
Multi-item discount
You can also compare discounts to find the lowest price for an item. Enter a percentage off price, fraction off price, multiple items for the price of one or other "two-for" type discounts. Compare the final discounted price for each in the answer table.
Delete any pricing inputs you don't need for your calculations.
Sale Price Formulas and Calculations
Percent Off Price Formula
Discounted price = List price - (List price x (percentage / 100))
Example: Sale price is 25% off list price of $130
Convert 25% to a decimal by dividing by 100: 25/100 = 0.25
Multiply list price by decimal percent: 130*0.25 = 32.50
Subtract discount amount from list price: 130 - 32.50 = 97.50
With the formula:
130 - (130*(25/100)) =
130 - (130*0.25) =
130 - 32.50 = 97.50
25% off $130 is $97.50
Answer:
103.96
Step-by-step explanation:
100% (full price) --> 129.95
80% (retail price = 100%(full price) - 20% (discount)) --> x
x = 80*129.95/100 = 103.96
Decide if the following statement is true or false. Explain why. It is possible to have a standard deviation of 445,000.
Answer:
TRUE
Step-by-step explanation:
Standard deviation is defined as the measure of spread. In other words, it shows and determines how spread out the numbers are, i.e. the amount of dispersion or variation of a given set of numbers.
The standard deviation ranges from zero to any number. So it is possible to have a standard deviation of number 445,000 because the standard deviation can be of any value greater than or equal to zero.
Using the standard deviation concept, it is found that since the standard deviation is always a positive value or zero, the statement is true.
What is the standard deviation of a data-set?The standard deviation is given by the square root of the sum of the differences squared of each observation and the mean, divided by the one less than the number of values.It always assume a positive value or zero.Hence, considering that the standard deviation is always a positive value or zero, the statement is true.
You can learn more about the standard deviation concept at https://brainly.com/question/24754716
HURRY PLEASE!!! IM BEING TIMED. I WILL GIVE YOU BRAINLIEST!
Answer:
Josh charges $5 more than Lindsay
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
lindsay's equation is y=6x+15.
you compare the first row and second row to find the cost per dog and then subtract from the total to find the initial cost.
You work as a bank manager. Applicants for tellers jobs took a skills test and their scores are listed in the chart shown. To compare the group of applicants with groups for other positions, you need to find their average scores. What was the average score on the test for this group?
You haven't listed the information in the table, but that's okay :). I believe I can still help you.
To find the average score on the test for this group you would have to add up all the test scores listed in the chart, then divide that sum by the number of people in the group.
Here's an example;
I'll make a list of people with some test scores
Jimmy- 80
Andrea- 44
Samuel- 15
Jerica- 65
To find the average of their scores, I'll first add up their points:
80+44+15+65 = 204
Once I've calculated my sum, I will divided that sum by the number of people who took the test. In this case it's 4 different people, so :
204÷4= 51
So in my made up scenario the average score in my group was 51.
Now you can apply this process into your problem.
(Hope this helps :). Please let me know if you need more help on this problem)
Evaluate y/4-2y-3
when y = -4
Answer:
4
Step-by-step explanation:
Hope that helps!
9514 1404 393
Answer:
4
Step-by-step explanation:
Substitute the given value for y, then do the arithmetic.
[tex]\dfrac{y}{4}-2y-3\\\\=\dfrac{-4}{4}-2(-4) -3 \qquad\text{use $y=-4$}\\\\=-1+8-3=7-3=\boxed{4}[/tex]
I WILL GIVE YOU BRAINLIEST!! I AM BEING TIMED SO HURRY!
answer choices
A. y = 1/2x - 5
B. y = 3x - 4
C.y = 2x + 3
D.y = 5/2x + 7
Answer:
b is the right answer
Step-by-step explanation:
Answer:
if you are already cheating use desmos but it is C
Step-by-step explanation:
plz give brainliest
Solve the equation -30p – 2 = 58 for p.
A. -2
B. -1
C. 0
D. 2
Answer:
p=-2
The answer is A
Step-by-step explanation:
-30p-2=58
Both side +2 ,
-30p=60
p=-2
The answer is A
pablo drove 240 mies using 9 gallons of gas. At this rate how many gallons of gas would he need to drive 216 miles?
meow help me pls :(((
Answer:
a) 3x-5=16
b) 30cm
Step-by-step explanation:
a) 5(x-1)=2(x+8)
5x-5=2x+16
5x-2x-5=16
3x-5=16
b) solving the equation gives x=7
put x=7 into first line, 5(7-1)=30cm
to check we can place it into second one as well
2(7+8)=30cm
Question #5
Х
Given: L is the midpoint of segment JN and segment
KM.
1) Mark the diagram with the given information along
with anything else you know in the diagram. (3 points)
2) State if the triangle JKL is congruent to triangle NML.
If yes, state which triangle congruence can be used to
prove it. (2 points)
Not congruent
SSS
O SAS
M
ASA
what is the domain of the function a(x) in this context? will mark brainliest if you give right answer
Functions assign outputs to inputs. The domain of a function is the set of all possible inputs for the function. For example, the domain of f(x)=x² is all real numbers, and the domain of g(x)=1/x is all real numbers except for x=0. We can also define special functions whose domains are more limited.
Gianna is going to an amusement park. The price of admission into the park is $40, and once she is inside the park, she will have to pay $4 for every ride she rides on. How much money would Gianna have to pay in total if she goes on 12 rides? How much would she have to pay if she goes on r rides?
Answer:
88 dollars
Step-by-step explanation:
you multiply 4 by 12 and you get 48 then you add the admission fee which is 40, then you have 88
Answer:
1) $88
2) $40 + $4r
Step-by-step explanation:
1) $40 + $4(12)
$40+$48
$88
2) $40 + $4(r)
$40 + $4r
1.36 is 17% of x, 1.05 is y% of 15
solve x and y
Answer:
The answers are that x = 8 and y = 7%
Step-by-step explanation:
To find the value of x, we need to divide 1.36 by the percentage it is of the whole (17%).
1.36/17% = 8
And now to find y, we divide 1.05 by 15
1.05/15 = 7%
Reflect (-3, -3) over the y-axis.
Then translate the result to the left 2 units.
What are the coordinates of the final point?
Answer: (1,-3)
Step-by-step explanation:
Solve 7x + 12 = 3x
Solve for x
Answer:
= − 3
thats the asnwer
Answer:
x = -3
Step-by-step explanation:
7x + 12 = 3x
4x = - 12
x = -3
hope this helps :)
