Answers
Answer:
C
Step-by-step explanation:
Related Questions
Need help with these questions
Answers
Answer:
Area = 31.5 units²
Step-by-step explanation:
Area of the triangle = ½ × base × height
base = 9
height = 7
Substitute
Area = ½ × 9 × 7
Area = ½ × 63
Area = 31.5 units²
A mason gets $684 for 9 days
of work how many days
should he work to get $912
Answers
Answer:
12days
Step-by-step explanation:
A mason gets 76 dollars per day. To get 912 dollars, divide 912 by 76. 12days.
Answer:
12 days
Step-by-step explanation:
912/76 = 12
Three people take 2 1⁄2( two and a half ) hours to deliver leaflets to 270 houses
Assuming all people deliver leaflets at the same rate, how long will it take five people to deliver leaflets to 450 houses?
Give your answer in hours and minutes
Answers
9514 1404 393
Answer:
2 hours 30 minutes
Step-by-step explanation:
Effort is measured in people-hours per house. Here, the effort to deliver one leaflet is ...
(3 people)(2.5 hours)/(270 houses) = 1/36 people-hours/house
Then the number of hours (h) for 5 people and 450 houses is ...
(5 people)(h hours)/(450 houses) = 1/36 people-hours/house
h = (1/36)(450/5) = 2.5
It will take 2 hours 30 minutes to deliver to 450 houses.
_____
Alternate solution
The time is (assumed) inversely proportional to the number of people, so increasing the number of people from 3 to 5 multiplies the time by 3/5. The time is proportional to the number of houses, so increasing the number of houses from 270 to 450 multiplies the time by 450/270 = 5/3. The time for the second task is (3/5)(5/3) = 1 times the time for the first task.
2 1/2 hours is 2 hours 30 minutes.
- A statistical question is answered by a distribution of results.
?
True or false
Answers
Task 1
Nonlinear Systems of Equations
Create a system of equations that includes one linear equation and one quadratic equation.
Part 1. Show all work in solving your system of equations algebraically.
Part 2. Graph your system of equations and show the solution graphically to verify your solution.
Task 2
Polynomial Identities
Part 1. Pick a two-digit number greater than 25. Rewrite your two-digit number as a difference of two numbers. Show how to use the identity (x − y)2 = x2 − 2xy + y2 to square your number without using a calculator.
Part 2. Choose two values, a and b, each between 8 and 15. Show how to use the identity a3 + b3 = (a + b)(a2 − ab + b2) to calculate the sum of the cubes of your numbers without using a calculator.
Answers
Answer:
part 1 : y = x^2 + 3x + 5
y = x + 13
solution:
x^2 + 3x + 5 = x + 13
x^2 + 2x -8 = 0
(x+4)(x-2) = 0
x = -4 or x = 2
if x = -4, y = 9
if x = 2 , y = 15
part 2 : x^2 + 2x + 1 = 0
(x + 1)^2 = 0
x = -1
y = 1
task 2
part 1 : Let our two digit number be 26
Next, we rewrite it as a difference of two numbers
26=32-6
We want to square 26 using the identity:
In this case,
x=32
y=6
Substituting into the identity
plz make me brainliest
Can someone help me pls
Answers
Answer:
x = 10 units
Step-by-step explanation:
By theorem,
Perpendicular drawn from the center to the chord of a circle, bisects the chord.
AB = BC = 6
In right triangle ΔCBD,
By applying Pythagoras theorem,
CD² = BC² + BD²
= 6² + 8²
CD = [tex]\sqrt{36+64}[/tex]
= 10
Since, CD and the side measuring x are the radii of the circle D.
x = CD = 10 units
Need help!
Please explain your answer
Answers
k = (2,2)
L=(4,5)
first see the x-axis and then y-axis
–25(15 – 20d + 5c)
help please
Answers
Answer:
-375 + 500d - 125c
Step-by-step explanation:
Multiply everything by -25. Also keep in mind that 2 negatives make a positive. You can't simplify any further since each numbers have different variables.
Answer:
Step-by-step explanation:
-375 + 500d - 125c
Hope that helps! :)
The dot plot below shows how many campsites have each number of campers.
What is the mean absolute deviation of the data set shown?
Plezz help :(
Answers
Answer:
1
Step-by-step explanation:
The answer is 1.
Answer: The answer is 1 100%
Step-by-step explanation: i took the test
O GEOMETRY, MEASUREMENT, DATA ANALYSIS
Metric conversion with decimal values: Two-step problem
A coral reef grows 0.17 m every week. How much does it grow in 13 weeks?
Write your answer in centimeters.
cm
X Х
5
?
Meters to centimeters
Answers
Answer:
It grows 221 centimeters in 13 weeks.
Step-by-step explanation:
Each meter has 100 centimeters.
A coral reef grows 0.17 m every week
So it grows 0.17*100 = 17 cm every week.
How much does it grow in 13 weeks?
17 cm every week for 13 weeks, so
17*13 = 221
It grows 221 centimeters in 13 weeks.
Please help ASAP! Which answer choice is it???
Answers
Answer:
Choice A
Step-by-step explanation:
You can rule out choices B and D because they do not have 6 sides which your prism does. You can forget about C being correct because it doesn't have 4 long sides.
Answer:
A is the best answer
Step-by-step explanation:
it has four sides
Select the correct answer.
29 points!! Kathy distributes jelly beans among her friends. Alia gets 42 fewer jelly beans than Kelly, who gets 33 jelly beans. How many jelly beans does Alia get?
A. 4^2 - 3^3
B. 3^3 + 4^2
C. 4 - 3^3
D. 3^3 - 4^2
E. 3^2 - 4^3
Answers
Answer:
Alia has 11 jelly beans.
Step-by-step explanation:
4^2= 163^3= 2727-16=11
What type of angles are A and B?
Answers
Answer:
supplementary angles
Step-by-step explanation:
Answer:
supplementary
they are also adjacent
they also form a 'straight angle'
they can also be termed as a 'linear pair'
Step-by-step explanation:
Write an equation in slope-intercept form for the line shown.
Answers
Answer:
this is the answer
Step-by-step explanation:
hope it helped!!!
What is the area? Write the answer
Answers
Answer:
the answer to the question is 179/25
A manufacturer claims that a particular automobile model will get 50 miles per gallon on the highway. The researchers at a consumer-oriented magazine believe that this claim is high and plan a test with a simple random sample of 25 cars. What should the researchers conclude if the sample mean is 49 miles per gallon with standard deviation 2.3 miles per gallon
Answers
Answer:
Following are the responses to the given question:
Step-by-step explanation:
Given values:
[tex]The \ population\ mean(\bar{x})=50\\\\The \ sample \ mean, \mu =49\\\\standard \ deviation, \sigma =2.3\\\\ (n)=25\\\\null, H_o :\ \mu=50\\\\alternate, H_1 :\ \mu<50\\\\ testing \ the \ statistic (t) = \frac{\bar{x}-\mu}{\frac{\sigma}{\sqrt(n)}}\\\\to = \frac{49-50}{\frac{2.3}{\sqrt{25}}}\\\\to =-2.1739\\\\| to | =2.1739\\\\p-value\ :left \ tail - H_a : (p < -2.1739 )=0.0199\\\\null, H_o: \ \mu=50\\\\alternate, H_1: \ \mu<50\\\\test \ statistic: \ -2.1739\\\\p-value: 0.0199 \sim 0.02\\\\[/tex]
Therefore, the 0.02 p-value is sufficient proof to reject the claim form of the manufacturer.
A computer password contains six characters but does not permit repetition of any characters (either letters or numbers). If uppercase and lowercase letters are used, how many possible passwords are there?
Answers
Answer:
[tex]\frac{62!}{56!}[/tex]
Step-by-step explanation:
We can either look at all 62 characters (2 * 26 in the alphabet and 10 digits), choose 6 of them, and add the fact that we care about their order - so multiply by 6! and we get [tex]\binom{62}{6}\cdot 6! = \frac{62!}{6!\cdot 56!} \cdot 6! = \frac{62!}{56!}[/tex]
Or, we can look atr all the permutations of all the characters and take into account that we DON'T care about the order of the 56 after the first six. Getting [tex]\frac{62!}{56!}[/tex] immediately.
What point's coordinates will not change signs whether it is reflected over the x-axis or the y-axls?
Answers
Answer:
The origin (0,0)
Step-by-step explanation:
Is this a Percent Increase or Decrease Problem?
Shaleka had a 10%-off coupon and paid $36 for pair of
jeans.
Answers
Answer:
Percent Decrease
Please mark as brainliest for further answers :)
Six friends arrive at a party their arrival increases the number of people at the party by 20% in total how many people are now at the party
Answers
Answer:
Step-by-step explanation:
If the height of a cylinder is tripled, but the area of the base stays the same, what happens to the volume? The volume is four times greater. The volume triples. The volume is nine times greater. The volume doubles.
Answers
Answer:
I gotchu
Step-by-step explanation:
The volume triples
Odysyware
Answer:
The volume triples
Step-by-step explanation:
i got 100% on quiz for odysseywa
1 million =_____________ hundred thousand
Answers
Answer:
seriously,I think the answer is 10 hundred thousand
Step-by-step explanation:
10*100000=1000000
Show that area under multivariate normal distribution over the whole range in unity. Find characteristics function of multivariate normal distribution and mean and variance of multivariate normal distribution. Differentiate between univariate and multivariate normal distribution and their practical applications. Also explain characteristic function, its application and differentiate between mean and variance of univariate and multivariate normal distribution with help of some practical examples
Answers
Answer:
here is the answer
Step-by-step explanation:
you may please search it
First answer gets brainest. 8th grade math root question
Answers
Answer:
9
Step-by-step explanation:
Answer: 9
Step-by-step explanation:
Square Rooting is basically going down to the origins of the number, trying to figure out what times (x) would give you your current number. In order it get 81, you would need to do 9*9, therefore making the square root 9
What is the factorization of the expression below?
4x^2-9y^2
O A. (2x - 3)(2x + 3y)
B. (2x-3y)(2x-3y)
O C. (4x - 3y)(x + 3y)
D. (4x-3y)(x-3y)
Answers
Answer:
answer will be A. (2x-3)(2x+3y)
15. Which graph shows - 3x + y = 8
first question
Answers
Answer:
Im sorry but i can't read it
Step-by-step explanation:
3. Solve - 3/5t = 15
O t = 25
O t = -25
O t = 15
O t = -15
PLEASE HURRY ILL GIVE 10 POINTS AND BRAINLYEST
Answers
Answer:
t= - 15
Step-by-step explanation:
(-3/5)t = 15
Multiply both sides by 5:
-3t=75
Divid both sides by -3:
t=-15
Use the net as an aid to compute the surface area of a triangle pyramid with an equilateral triangle base
Answers
Answer:
106 ft 2
Step-by-step explanation:
Answer:
323 in
Step-by-step explanation:
Assume that you have obtained a sample mean of 56 Pa, a test statistic of -2.02 and a p-value of 0.095. Which of the statements below are correct interpretations of the p-value?
a. There is a 9.5% chance of making a mistake by rejecting the null hypothesis of the mean elasticity being as per design specification.
b. Assuming the mean elasticity is as per design specification, the probability of observing a sample mean as small or smaller than 56 Pa is 0.095.
c. Assuming the mean elasticity is as per design specification, the probability of observing a sample mean as large or larger than 56 Pa is 0.095.
d. Assuming the mean elasticity is as per design specification, the probability of obtaining a test statistic as small or smaller than -2.02 is 0.095.
e. Assuming the mean elasticity is as per design specification, the probability of obtaining a test statistic as large or larger than -2.02 is 0.095.
f. There is a 0.095 probability that the results are due to chance.
g. None of the above.
Answers
Answer:
options : B and D
Step-by-step explanation:
Given that the sample mean = 56 pa , test statistic = -2.02 and the p-value = 0.095 . the correct statements about the interpretations of the p- value are :
Assuming the mean elasticity is as per design specification, the probability of observing a sample mean as small or smaller than 56 Pa is 0.095. Assuming the mean elasticity is as per design specification, the probability of obtaining a test statistic as small or smaller than -2.02 is 0.095.Find x in each triangle.
Answers
Answer:
it is 3.4 cm
Step-by-step explanation:
by phythagorous teorm
3 square +1.6 square=x square
11.56=x square
then x =radical 11.56 =3.4 cm