I need Helpppp ASAP!!
Answer:15
Step-by-step explanation: 9^2+12^2=c^2 and solve :)
Answer:
C) x = 15
Step-by-step explanation:
This is a right triangle
to find the length of x (hypotenuse) we calculate the square sum of other two sides
9^2 + 12^2 = x^2
81 + 144 = x^2
225 = x^2
15 = x
HELP WORTH 50 POINTS AND ILL GIVE YOU BRAINLESS IF ITS RIGHT
Evaluate. Express your answer in scientific notation.
4.58 x 10^-6 + 7.33 x 10^-6
Answer:
[tex]1.19*10^{-5}[/tex]
Hope this helps!
pls don’t answer if you don’t know
Answer:
C. 0
Step-by-step explanation:
I had the question on a test before, and I remember the answer.
Solve for a.
ab + c = d
The answer Answer is:
a=d-c/b
helpm eplaydbfhdhrhjrjrhrhthrhrhrgdvfbfbfbfbdjdueneusjd
Answer:
3x
Step-by-step explanation:
Answer:
what the heck what grade are you in so i can drop out know
Step-by-step explanation:
Solve the inequality 2-x<7
Answer:
x > -5
Step-by-step explanation:
what are thex intercepts of 푓(푥) = − 1 5 푥 4 −푥 3 +푥 2 +7푥 +7
Answer:
Is this language Chinese
(20 PTS) WILL GIVE BRAINLIST
Which statement best describes the area of the triangle shown below?
A coordinate grid is shown with a triangle. The base is 4 units, and the height is 4 units.
It is one-half the area of a rectangle of length 4 units and width 2 units.
It is twice the area of a rectangle of length 4 units and width 2 units.
It is one-half the area of a square of side length 4 units.
It is twice the area of a square of side length 4 units.
Answer: 3rd one I think
Step-by-step explanation: I had smth like this
Answer:
You got it right! The answer is [A].
Step-by-step explanation:
Visualize a rectangle 4 units long and 2 units wide. Doesn't each part of the triangle seem to be a half of different parts of the rectangle?
second question of today. what would the equation be if the slope was -2, and the coordinate 1, -3 was on the line?
Answer:
y=-2x-1
Step-by-step explanation:
y=mx+b
y=-2x+b
so now we plug in the coordinates
-3=(1)-2+b
-3=-2+b
-1=b
31. The director of a marketing department wants to estimate the proportion of people who purchase a certain product online. The director originally planned to obtain a random sample of 2.500 people who purchased the product. However, because of budget concerns, the sample site will be reduced to 1.500 people. Which of the following describes the effect of reducing the number of people in the sample? (A) The variance of the sample will increase
(B) The variance of the population will decrease.
(C) The variance of the sampling distribution of the estimator will increase
(D) The variance of the sampling distribution of the estimator will decrease
(E) The variance of the sampling distribution of the estimator will remain the same
Answer:
C
Step-by-step explanation:
AP Classroom says so
The correct option should be C: "The variance of the sampling distribution of the estimator will increase" because the sample size is decreased from 2500 to 1500.
Given information:
The director originally planned to obtain a random sample of 2500 people who purchased the product.
However, because of budget concerns, the sample size will be reduced to 1500 people.
Now, the variance of the sample distribution can be written as,
[tex]\dfrac{\sigma^2}{n}[/tex] where n is the sample size.
So, the variance is inversely proportional to the sample size.
Here, we can conclude that with an increase in sample size, the variance will decrease and vice versa.
Therefore, the correct option should be C: "The variance of the sampling distribution of the estimator will increase" because the sample size is decreased from 2500 to 1500.
For more details, refer to the link:
https://brainly.com/question/7635845
Geometry please help! I’ll mark Brainlest
Answer:
it is 23.
Step-by-step explanation:
The hypotenuse has to be each leg added together which is 44. And 44 - 21 is 23.
Pls mark brainliest.
a group of 4 pupils can take 2 weeks to do a certain job.how long will 12 pupils take to complete the job if they work at the same rate
Answer:
6 weeks
Step-by-step explanation:
Set up a proportion where x is the amount of time with 12 pupils:
[tex]\frac{4}{2}[/tex] = [tex]\frac{12}{x}[/tex]
Cross multiply and solve for x:
4x = 24
x = 6
So, it will take 12 pupils 6 weeks to complete the job.
Help Plssssssaaa s s s
Solve the inequality. Graph the solution.
−8 ≤ z + 6.4
Answer:
Solve for z- by simplifying both sides of the inequality, then isolating the variable.
Inequality Form:
z≥−14.4
Step-by-step explanation:
The solution of the inequality −8 ≤ z + 6.4 is z ≥ 14.4.
What are open and closed circles?A closed circle on a point represents including(less than or equal to or greater than or equal to) the point and an open circle on a point represents we are not including(strictly less than or greater than) that point.
The solution of the inequality −8 ≤ z + 6.4 is,
z ≥ 6.4 + 8.
z ≥ 14.4.
∴ The graph of the inequality z ≥ 14.4 will be a line denoted by a closed circle at 14.4 to infinity or a region greater than or equal to 14.4.
learn more about inequalities here :
https://brainly.com/question/20383699
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results of a random survey showed that 15 out of 25 students plan to vote for Stacy for class
president. Based on this survey, about how many votes will Stacy receive if 225 students cast votes?
165 votes
So we know that there would be 225 votes.
Explanation:
225 divide 25=11
Then lastly multiply 15 with 11.
Final Result: 165 votes
i need help with this too please
100 points Explain what the slope and intercept mean in the situation.
The graph shows the cost in dollars, y, of a muffin delivery and the number of muffins, x, ordered. The slope of the line is 2 and the y-intercept is 3.
Answer:
The slope means that every time the x value changes by +1, then the y value will change by +2.
The y-intercept is 3, which means is that when the y value is at 3, the line crosses the y-axis, or x has as value of 0.
For real though, why are there so many questions about slope and intercept, I just finished answering a question like this.
Drag the numbers to order them from least to greatest.
Javier walks from his house to the zoo at a constant
Answer:
Congrats?
Step-by-step explanation:
I don´t understand the question
maria draws one marble from a bag containing 5 red, 3 green, and 4 yellow. the probability she draws a yellow marble is____
Answer:
33% or 4/12
Step-by-step explanation:
There are 5 red, 3 green, and 4 yellow, so make it into a fraction. In total there are 12 marbles(5+3+4). There are 4 yellow marbles, so the fraction would be 4/12. Turn this into a percent to get the probability. 4/12 = 0.33 = 33%
Please help someone :)
Answer:
the answer should be B as the correct domain and range
Yuna's favorite type of cheese crackers has 30 crackers for each serving.
Answer:
??????
Step-by-step explanation:
Answer:
nice i like crackers but 30 crackers is a bit much an average serving size should be 7.
Step-by-step explanation:
A veterinarian estimated the weight of a puppy to be 7 kg. The actual weight of the puppy was 6.6 kg.
Find the absolute error and the percent error of the veterinarian's estimate. If necessary, round your answers to the nearest
tenth.
Х
$
?
absolute error = [kg
percent error = []%
9514 1404 393
Answer:
absolute error: 0.4 kgrelative error: 6.1%Step-by-step explanation:
The absolute error is the difference between the estimate and the actual weight:
7.0 kg -6.6 kg = 0.4 kg . . . . absolute error
__
The relative error is the ratio of the absolute error to the actual weight:
(0.4 kg)/(6.6 kg) × 100% = 6.060606...% ≈ 6.1% . . . . relative error
Sarah was thinking of a number. Sarah doubles it and gets an answer of 4.5. What was the original number?
Answer:
2.25
Step-by-step explanation:
Just half 4.5 and you should get 2.25 which is quite easy to be honest
Answer:
2.25
Step-by-step explanation:
4/5/2=2/25
Let N be the universal set and A, B, C, D be its subsets given by A={x:xisaevennaturalnumber},B={x:xNandxisamultipleof3} C={x:xNandx 5},D={x:xNandx 10} Find complements of A, B, C and D respectively.
Answer:
[tex]A^{'}[/tex] = {1,3,5,7,9,....}
[tex]B^{'}[/tex] = {1,2,4,5,7,8,10,11,13,14......}
[tex]C^{'}[/tex] = {1,2,3,4,5}
[tex]D^{'}[/tex] = {10,11,12,13,14,15,......}
Step-by-step explanation:
Solution:
It is given that, Universal set is the set of all Natural Numbers.
and
Set A, Set B, Set C, Set D are subsets of Universal set.
A = {x:x is even natural numbers} = {2,4,6,8,10,.....}
B = {x:x ∈ N and x is a multiple of 3} = {3,6,9,12,15,....}
C = {x:x∈ N and x < 5} = {6,7,8,9,10,.....}
D = {x:x ∈ N and x > 10} = {1,2,3,4,5,6,7,8,9}
U = {1,2,3,4,5,6,7,8,9,10,11,........}
Complements:
[tex]A^{'}[/tex] = U-A = {1,2,3,4,5,6,7,8,9,10,11,........} - {2,4,6,8,10,.....}
[tex]A^{'}[/tex] = {1,3,5,7,9,....}
[tex]B^{'}[/tex] = U-B = {1,2,3,4,5,6,7,8,9,10,11,........} - {3,6,9,12,15,....}
[tex]B^{'}[/tex] = {1,2,4,5,7,8,10,11,13,14......}
[tex]C^{'}[/tex] = U-C = {1,2,3,4,5,6,7,8,9,10,11,........} - {6,7,8,9,10,.....}
[tex]C^{'}[/tex] = {1,2,3,4,5}
[tex]D^{'}[/tex] = {1,2,3,4,5,6,7,8,9,10,11,........} - {1,2,3,4,5,6,7,8,9}
[tex]D^{'}[/tex] = {10,11,12,13,14,15,......}
Decide whether there is enough information to prove that ab. If so, state the theroem you would use.
Logan was paid $45 for 3 hours of work on Friday. He was paid $90 for 6 hours of work on Saturday.
Are Logan’s pay rates, in dollars per hour, proportional for these 2 days? please help
Answer:
Yes, Logan's pay rates are proportional for those 2 days.
Step-by-step explanation:
First, we have to figure out what 6 divided by 3 is.
6 ÷ 3 = 2
So, now we have to divide 90 by 45.
90 ÷ 45 = 2.
So, yes it is proportional because 6 ÷ 3 = 2 and 90 ÷ 45 is also 2 so yes it is proportional.
Hope this helps! :)
I need help I don't know how to do this
please help!
Does the equation x+7=12 have the same answer as 2x+14=24? Do you think there is a way to tell without solving each equation? Explain.
Answer: yes they both have the same answer.
Step-by-step explanation: 12 - 7 equals 4 and 28/7 equals 4
Answer:
yes x is the same in both problems
Step-by-step explanation:
in the first one you subtract seven from both side to leave you with x=5
in the second problem you subtract 14 (2x=10) from both sides then divide both sides by 2 so you are left with x=5
The table shows data from an experiment with two trials. Calculate the percent errors. Which trial had the greater percent error?
Percent Errors
Trial A
Trial B
Measured Value
240
195
Actual Value
200
240
Percent Error
?
?
Complete the table.
Percent Errors
Trial A
Trial B
Measured Value
240
195
Actual Value
200
240
Percent Error
440440%
435435%
Answer:
A is the answer 456% and 512%
Step-by-step explanation:
Answer:
trial A percent error is 20%. trial B percent error is 18.75%
trial A had the greater percent error.