Answer:
6
Step-by-step explanation:
area of carpet =18
the formula to calculate the area of carpet is l×b so.
l×b=18
l×3=18
3l =18
l=18/3
L=6
7.
Find the specified value.
(2x +5)
a. Using the figure to the right, find the value of x.
b. Using the figure to the right find the value of y.
Answer:
a. The value of x is [tex]38^{o}[/tex].
b. The value of y is [tex]25^{o}[/tex].
Step-by-step explanation:
a. Applying the vertically opposite principle,
(2x + 5) = (3x - 33)
2x + 5 = 3x - 33
33 + 5 = 3x - 2x
38 = x
⇒ x = [tex]38^{o}[/tex]
b. Sum of angles on a straight line = [tex]180^{o}[/tex]
So that,
(4y - 1) + (3x - 33) = [tex]180^{o}[/tex]
But,
( 3x - 33) = (3x38 - 33)
= 114 - 33
= [tex]81^{o}[/tex]
(4y - 1) + [tex]81^{o}[/tex] = [tex]180^{o}[/tex]
4y - 1 = [tex]180^{o}[/tex] - [tex]81^{o}[/tex]
= [tex]99^{o}[/tex]
4y = [tex]99^{o}[/tex] + 1
= [tex]100^{o}[/tex]
y = [tex]\frac{100}{4}[/tex]
= [tex]25^{o}[/tex]
y = [tex]25^{o}[/tex]
The value of x is [tex]38^{o}[/tex], and y is [tex]25^{o}[/tex].
Find the magnitude of the vector from the origin to (8,-6) and write the vector as the sum of unit vectors
Answer:
Step-by-step explanation:
let V be the vector.
V=8i-6j
|V|=√(8²+(-6)²)=√(64+36)=√(100)=10
Answer:
D on edg2021
Step-by-step explanation:
Just took the test
Please help me help this
Write 1/5 as a percent.
Answer:
0.2
Step-by-step explanation:
Please help if you answer this correctly I will give you brainliest. Is this a zero slope or an undefined slope?
Picture below
Answer:
undefined
Step-by-step explanation:
m= y/x
and x =0
Answer:
It is undefined slope
Step-by-step explanation:
Evaluate the expression when y=5 and x=18 x-3y
Answer:
3
Step-by-step explanation:
Step 1: replace y for 5, and x for 18
x-3y
18-3(5)
Step 2: simplify.
18-15
3
Answer:
Step-by-step explanation:
18 - 3(5)= 18 -15= 3
How do I solve these?
Answer:
I don't know
Step-by-step explanation:
is there a picture of a graph or anything
Help I need the answer
log101 = -1 0 1
Answer:
wht is the question
Step-by-step explanation:
what is a multiplication expression that is equal to 2/3 divided by 6
Answer:
1/9
Step-by-step explanation:
400000 divided by 625
Answer:
643.08
Step-by-step explanation:
You can use long division or a calculator
Answer:
640
Step-by-step explanation:
(used a calculator)
Ariana invested $400 in an account paying an interest rate of 3.8% compounded monthly. Assuming no deposits or withdrawals are made, how much money, to the nearest ten dollars, would be in the account after 11 years?
Answer:
After 11years there'll be$602.880
Step-by-step explanation:
Amount after 11years
=$400(1+3.8/100)¹¹
=$602.880
The after 11 years the amount will be $602.880
We have given that,
Ariana invested $400 in an account paying an interest rate of 3.8% compounded monthly.
What is the formula for the future value on simple interest?[tex]A=p(1+r)^n[/tex]
Amount after 11 years,
[tex]P=$400r=3.8[/tex]
[tex]=\frac{3.8}{100} =0.38[/tex]
[tex]=$400(1+3.8/100)^{11}[/tex]
[tex]=$602.880[/tex]
Therefore the after 11 years the amount will be $602.880.
To learn more about future values visit:
https://brainly.com/question/24703884
5/6 divided by 1/4 equals?
Answer:
10/3 or 3 1/3
Step-by-step explanation:
Members at a popular fitness club currently pay a $40 per month membership fee. The owner of the club wants to raise the fee to $50 but is concerned that some members will leave the gym if the fee increases. To investigate, the owner plans to survey a random sample of the club members and construct a 95% confidence interval for the proportion of all members who would quit if the fee was raised to $50.
Answer:
(a) It implies that if many samples of the members of the fitness club were selected and many 95% confidence intervals were constructed, the true proportion of all members of the fitness club who would quit would be captured by about 95% of the intervals.
(b) It implies that there is a 95% confidence that the true proportion of all members of the fitness club who would quit if there is an increase in the fee will be captures by the interval 0.105 – 0.225 (i.e. calculated as 0.18 – 0.075 = 0.105 and 0.18 + 0.075 = 0.225).
(c.) No, as there are plausible values above 20 as it is not all the intervals that are below 20. The implication of this is that there is a possibility that more than 20% would quit.
(d) The implication of the condition is that the distribution of the sample is approximately normal. This gives the opportunity to do estimations. However, the it will not be possible to estimate the 2 critical values if the distribution is not approximately normal. .
Step-by-step explanation:
Note: This question is not complete. The complete question is therefore provided before answering the question as follows:
Members at a popular fitness club currently pay a $40 per month membership fee. The owner of the club wants to raise the fee to $50 but is concerned that some members will leave the gym if the fee increases. To investigate, the owner plans to survey a random sample of the club members and construct a 95% confidence interval for the proportion of all members who would quit if the fee was raised to $50.
(a) Explain the meaning of "95% confidence" in the context of this study.
(b) After the owner conducted the survey, he calculated the confidence interval to be 0.18 +/- 0.075. Interpret this interval in the context of the study.
(c.) According to the club’s accountant, the fee increase will be worthwhile if fewer than 20% of the members quit. According to the interval from part (b) can the owner be confident that the fee increase will be worthwhile? Explain.
(d) One of the conditions for calculating the confidence interval in part (b) is that np ≥ 10 and n(1 – p) ≥ 10. Explain why it is necessary to check this condition.
The explanation of the answer is now provided as follows:
(a) Explain the meaning of "95% confidence" in the context of this study.
It implies that if many samples of the members of the fitness club were selected and many 95% confidence intervals were constructed, the true proportion of all members of the fitness club who would quit would be captured by about 95% of the intervals.
(b) After the owner conducted the survey, he calculated the confidence interval to be 0.18 +/- 0.075. Interpret this interval in the context of the study.
It implies that there is a 95% confidence that the true proportion of all members of the fitness club who would quit if there is an increase in the fee will be captures by the interval 0.105 – 0.225 (i.e. calculated as 0.18 – 0.075 = 0.105 and 0.18 + 0.075 = 0.225).
(c.) According to the club’s accountant, the fee increase will be worthwhile if fewer than 20% of the members quit. According to the interval from part (b) can the owner be confident that the fee increase will be worthwhile? Explain.
No, as there are plausible values above 20 as it is not all the intervals that are below 20. The implication of this is that there is a possibility that more than 20% would quit.
(d) One of the conditions for calculating the confidence interval in part (b) is that np ≥ 10 and n(1 – p) ≥ 10. Explain why it is necessary to check this condition.
The implication of the condition is that the distribution of the sample is approximately normal. This gives the opportunity to do estimations. However, the it will not be possible to estimate the 2 critical values if the distribution is not approximately normal.
Y=-7x + 15 cordinates of the y intercept
Answer: Don’t quite understand what you are asking but the Y-Intercept = 15, and the slope would be -7. Hope this helps you
Step-by-step explanation:
Danny writes this phrase:
Three less than five times a number
Enter the expression that represents Danny's phrase into the box.
Use x for the variable.
PLZZ hurry no rush doe
Hey there!
The answer is 5x - 3
"five times a number" represents multiplication, so "5x"
"three less" represents subtracting 3, so "-3"
put together we get "5x - 3"
Good luck and have a nice day!
James can eat 12 jelly beans per minute, and Jenny can eat 8 jelly beans per minute. How
many minutes will it take Jenny and James to eat a combined total of 100 jellybeans?
Answer:
5 mins.
Step-by-step explanation:
hope his helps good luck
Answer:
5 minutes
Step-by-step explanation:
Quadrilateral A'B'C'D' is the image of quadrilateral ABCD under a dilation with a scale factor of 4. What is the length of segment CD'?
Answer:
C'D' = 8
Step-by-step explanation:
A'B'C'D' is the figure gotten by multiplying each segment of Quadrilateral ABCD by the scale factor of 4.
To get the length segment of C'D', multiply the length of CD by 4.
CD = 2 units
Therefore, C'D' = 4*2
C'D' = 8
Answer: it was 12 :(
Step-by-step explanation:
I got it wrong on khan academy but then I checked the explanation and it wasn’t 8 but 12.
Solve the system if equations
x + y = 30
y = 9x
Answer:
(3, 27)
Step-by-step explanation:
I will use substitution method.
y = 30-x
y = 9x
30 -x = 9x
30 = 10x
x = 3
So far we have (3, ?).
Now that we know x, we can plug in x to one of the equation to find y. I will plug it in at the bottom equation.
y = 9(3)
y = 27
Now we know that the solution is (3, 27).
How do i solve the equation please (Explain)!!
Answer:
a = 4.8
Step-by-step explanation:
9 - 4a + 12 = 6a - 27
21 - 4a = 6a - 27
48 - 4a = 6a
48 = 10a
4.8 = a
A train traveled 260 miles in 4 hours. If the train’s average rate of travel increases by 12 mph, what is its new average rate of travel?
A. 77 mph
B. 65 mph
C. 60 mph
D. 48 mph
Answer:
Correct option A
Step-by-step explanation:
Average rate = 260/4 = 65 mph
It increases by 12mph
So 65+12 = 77 mph
Correct option A
What numbers are a distance of 12 unit from 35 on a number line?
Select the locations on the number line to plot the points.
30 points
Answer:
The numbers are 1/10 & 11/10
Answer:
yes means yes
Step-by-step explanation:
GET 5 STARS, THANKS, AND BRAILIEST!!!
Solve by elimination:
2x + y = 20
6x - 5y = 12
Group of answer choices
(7 , 6)
(6 , 7)
(-7 , -6)
(4 , 10)
Answer:
its (7,6)
Step-by-step explanation:
2x + y = 20
2(7) + 6 = 20
14 + 6 = 20
20 = 20
6x - 5y = 12
6(7) - 5(6) = 12
42 - 30 = 12
12 = 12
Evaluate: 4×2²-10÷2+5
Answer:
The answer is 16.
Step-by-step explanation:
Simplify the expression.
Hoped this helped!
Answer:
Hi! The correct answer is 16!
Step-by-step explanation:
Simplify the expression
Complete: 0
Class:
1. Solve. Draw a tape diagram or number bond to add or subtract
tens. Write the new number sentence.
1
a. 26 + 38 =
1
1
1
Answer:
Step-by-step explanation:
Solve n/2+5=3 help me please thank you
Answer:
n=-1
Step-by-step explanation:
.....................
What is this missing angle?
If a person runs 10 kilometers in 0.4 hours, at what speed are they running per hour? I Need a explanation!!!!
Answer:
62.5 i think use a calculater i...
divided 25 by 0.4 got 6.25
6.25 times 10 got 62.5
Step-by-step explanation:
done i hope its right sorry if its not
On each trial of an experiment, a participant is presented with a constant soft noise, which is interrupted at some unpredictable time by a slightly louder sound. The time it takes for the participant to react to the louder sound is recorded. The following list contains the reaction times (in milliseconds) for 8 trials of this experiment:
486, 358, 395, 759,496, 692, 353, 306 0
(a) What is the mean of this data set? If your answer is not an integer, round your answer to one decimal place.
(b) What is the median of this data set? If your answer is not an integer, round your answer to one decimal place.
(c) How many modes does the data set have, and what are their values?
Answer:
480.6 ; 440.5, 8 mode values
Step-by-step explanation:
Given that :
Given the data :
486, 358, 395, 759,496, 692, 353, 306
Rearranged data: 306, 353, 358, 395, 486, 496, 692, 759
The mean:
Σx/ n
n = sample size = 8
Σx = sum of all data values = 3845
Mean = 3845 / 8
Mean = 480.6
The median :
0.5(n + 1)th term
0.5(8 + 1) th term
0.5(9)th term
= 4.5term
(4th + 5th term) / 2
(395 + 486) / 2
= 440.5
The mode = most frequently occurring data value ; since all the data values have a frequency of 1, then the number of modes = 8.
You receive 5 bonus points in class Wright an integer to represent that
Answer:
to represent what-
Step-by-step explanation:
help me pls ASAP!
(screenie below)
Answer:
i didnt see a screenie
Step-by-step explanation:
