The right answer is -14
please see the attached picture for full solution
Hope it helps
Pls help me in math, I need this tomorrow, thx :)
Answer: Range and mean = 8 of both
variance of Set X= 4.7
variance of Set Y= 4.6
Step-by-step explanation:
Two sets of data, set X and set Y are given
a.) Range is the difference of the highest value and the lowest value,
Therefore, Range of set X = 12-4=8
Range of set Y = 12-4=8
Now, Mean of a given data set is the average of all the terms present in the given data set
Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8
Mean of set Y= (4+5+7+32+20+12)/10= 8
Therefore, both the data sets has same range and mean.
b.) Standard deviation tells about the variability of the date and is given by,
S.D= σ = √∑ ( X − μ )^2/n
S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7
S.D of set Y= √(16+9+1+0+4+16)/10= √4.6
Variance is the square of S.D, that is, σ^2
Therefore, variance of set X=4.6
variance of set Y= 4.7
c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.
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Answer: Range and mean = 8 of both
variance of Set X= 4.7
variance of Set Y= 4.6
Step-by-step explanation:
We know
a.) Range is the difference of the highest value and the lowest value,
Therefore, Range of set X = 12-4=8
Range of set Y = 12-4=8
Now, Mean of a given data set is the average of all the terms present in the given data set
Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8
Mean of set Y= (4+5+7+32+20+12)/10= 8
also
b.) Standard deviation tells about the variability of the date and is given by,
S.D= σ = √∑ ( X − μ )^2/n
S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7
S.D of set Y= √(16+9+1+0+4+16)/10= √4.6
Variance is the square of S.D, that is, σ^2
Therefore, variance of set X=4.6
variance of set Y= 4.7
c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.
what is the degree measure of an angle that measures 4.5 radians
Answer:
257.8°
Step-by-step explanation:
rad × 180/π = °
4.5*180=810
810/π=257.8
If a/b-d=2c/b find the value of c when a=3, b=4 and d=-5
One clue:The answer is not 23/32. I have tried it and it's wrong.
Please explain detailly
8. Abby studies a map of Italy that shows a scale of 0.5 cm 10 km. The Pantheon and the Spanish Steps are 0.4 cm apart on the map. The Trevi Fountain is located exactly half way between the Pantheon and the Spanish Steps. What is the distance in kilometers from the Trevi fountain to the Spanish Steps?
Answer:8
Step-by-step explanation:if you times 0.4 times 10 you will get 4 and the. Divide that by 0.5 and you will get your answer 8.
This is an example of a Function.
True
False
Answer:
True
Step-by-step explanation:
This function would be
x²
Because we are squaring the negative cancels out
Hope this helped and have a good day
Answer:
true
Step-by-step explanation:
Which decimal is terminating?
0.12
0.4444
0.56
0.7878
Answer:0.7878
Step-by-step explanation:
The Term Terminating means the decimal never stops
So,
0.12 does not go on forever
And, 0.56 does not go on forever
that leaves us with the final two answer choices
0.4444 repeating and 0.7878 repeating
And the answer is 0.7878 because
IT IS NOT A RATIO OF TWO INTEGERS.
HOPE THIS HELPS
-STAY SAFE
The coordinates of point A on a grid are (−2, −4). Point A is reflected across the y-axis to obtain point B. The coordinates of point B are (___, −4). (5 points)
Answer:
B = (2, - 4)
Step-by-step explanation:
Under a reflection in the y- axis
A point (x, y) → (- x, y), hence
A(- 2, - 4) → B(2, - 4)
what value of x makes this equation true -(x+3)=2(x-3)
A. 0
B. 1
C. 2
D. 3
Answer:
To solve the equation -(x + 3) = 2(x - 3) for x, we can follow these steps:
Step 1: Distribute the negative sign on the left side of the equation:
-(x + 3) = 2(x - 3)
=> -x - 3 = 2(x - 3) (using the distributive property)
Step 2: Expand the right side of the equation:
-x - 3 = 2x - 6
Step 3: Add x to both sides of the equation to isolate the x term on one side:
-x + x - 3 = 2x + x - 6
=> -3 = 3x - 6
Step 4: Add 6 to both sides of the equation:
-3 + 6 = 3x - 6 + 6
=> 3 = 3x
Step 5: Divide both sides of the equation by 3 to solve for x:
3/3 = 3x/3
=> 1 = x
So, the correct value of x that makes the equation true is B. 1.
PLEASE MARK BRAILYISTT :D
Answer:
B, one
Step-by-step explanation:
In order to solve this, you can solve the equation. First, you can use the distributive property to get -x-3=2x-6. If you make the variables on one side and the constants on the other, you will get -3x-3=-6. This can further simplify to -3x=-6. Divide both sides by -3 to get that x=1. Then, the correct answer is B.
Determine the value of x in the triangle shown. answers: 48° 42° 228° 132°
Answer:132
Step-by-step explanation:
Answer:
132°
Step-by-step explanation:
first find the interior angle of the triangle.
the interior angle of a triangle is 180°
90°+42°+y°=180°
132°+y°=180°
y°=180°-132°
y°=48°
(y° represents the empty part).
angle on a straight line is equal to 180°
y°+x°=180°
48°+x°=180°
x°=180°-48°
x°=132°
Am I correct?????????? :D
Answer:
What?
Step-by-step explanation:
Is there an attachment?
Answer:
Si senora
Step-by-step explanation:
A car travels 40 miles west then goes 30 miles north. How far is the car from its starting point?
In the figure m1=(3x+12), m2=(3x+18), and m3=(7x+10). What is m3? Explain your method
Answer:
The solution is, the value of m<3 = 31.
What is simplification?
Simplify simply means to make it simple. In mathematics, simply or simplification is reducing the expression/fraction/problem in a simpler form. It makes the problem easy with calculations and solving.
here, we have,
given that,
in the figure, m<1= (3x+12)°, m<2= (3x+18)° and m<3= (7x+10)°.
now we get,
m<1= (3x+12)° is equal to m<3= (7x+10)°.
so, we have,
3x+12=7x+10
4x=2
x=1/2
m<3=7(3)+10=31
Hence, The solution is, the value of m<3 = 31.
Step-by-step explanation:
Pls ad me brainliest
Which is the value of the expression?
(-5)2
a. -25
b. -10
c. 10
d. 25
Step-by-step explanation:
option d is correct
as the exponent is even so the required ans. will be positive.
hope this answer helps you dear...take care and may u have a great day ahead!
can someone help? im not sure about this questons and its getting me so stressed out :( pls help :(
Answer:
Lets start:
Picture 1:-
1. Length of EH= 12cm
2. Angle G= 55 degrees
Picture 2:-
1. Scale factor= 1/4 (I'm not sure about this but this is what I think it is ;-;)
2. Value of y= 28 cm
Picture 3:- [Picture 3 is cropped so I'm guessing its the last one so imma answer those questions :D]
1. Scale factor= 5 (Again I'm not sure but its my best guess)
2. Value of z= 5
Picture 4:-
1. Scale factor= 4 (I'm pretty sure you know that my scale factor answers are guesses so yea ;-;)
2. Value of b= 12
Step-by-step explanation:
Since i can't add links in answers you can watch:
Similar figures
-By The Organic Chemistry Tutor
It'll help you understand how we solve these questions
Well anyways i hope this clears your concepts :D
Answer:
Step-by-step explanation:
EH is 12cm as the shape has been enlarged by scale factor two (all sides have been multiplied by 2).
Angle G remains the same at 55 degrees.
PART A
Scale factor for the triangle = 1/4
Value of y = 28cm
3) z = 5, scale factor = 5
SIMILAR RECTANGLES:
Scale factor = 4
Side b = 12cm
Hope these answers work out for you
You have a pizza with diameter 12
2
3 in., and a square box that is 12.65 in. across. Write 12
2
3 as a decimal. Can you fit the pizza inside the box?
What is the decimal expansion for 12
2
3?
A.12.6
B.12.65
C.12.6
D.12.66
pls help me
Answer:
D is the right choice and no you cannot fit the pizza inside the box.
Step-by-step explanation:
D is the answer because to turn 2/3 into a decimal you would divide 2 by 3 and the answer you would get would be 0.66666666666...You would then add 12 to the answer and get 12.6666... Once you get this answer you would round it to the hundredths to get 12.67 but since that is not an option you could use D, 12.66 inches.
Answer:
I believe the answer is D.
Step-by-step explanation:
help me I only have 1 hour
Answer:
your answer is 29
Step-by-step explanation:
using BODMAS
2.1+3.9 is 6
multiply by 4 gives 24
subtract 7 will give 17
on to the next bracket
6.2-4.2 is 2
multiply by 6 gives 12
17 +12 gives 29
your answer is 29
Which mixed number is equivalent to the improper fraction 4/25?
425
745
825
935
Answer:
4/25
Step-by-step explanation:
hope this helps if i'm wrong sorry but if i'm right plz mark me brainlest
Help asap I will mark you as the brainliest
Answer: 12.78
Step-by-step explanation:
Discount = 15.98 × 20/100
Discount = 319.6/100
Discount = 3.196
Final Price = Original Price - Discount
Final Price = 15.98 - 3.2
Final Price = $12.78
Answer:
Step-by-step explanation:
Answer- 7.24
Explanation-
(3x2.99)+4.98+(4x0.5)
8.97+4.98+2 = 15.95
15.95 x .20 = 3.19
15.95-3.19 = 12.76
20- 12.76=7.24
Correct answers only!
After conducting a survey of all her classmates Midge discovers that the amount of money everyone spends buying books each month has a mean of $30. What does the mean say about the amount of classmates spend on books?
Half of her classmates spent exactly $30 per month buying books.
Half of your classmates spent more than $30 per month buying books.
The majority of her classmates spent $30 per month buying books.
If the amount spent on books per month by all her the classmates is leveled, the amount will be $30.
Answer:
C: The majority of her classmates spent $30 per month buying books.
Step-by-step explanation:
The mean is the average of the numbers -> its C
Answer:
C
Step-by-step explanation:
Help Please I don't know what to do.
Answer:
y=4
y=7 (2,7)
y=10 (3,10)
y=-2 (-1,-2)
Answer:
Attached is the same chart. I inputted the values i the blank spaces
Nathan found two worms in the yard and measured them with a ruler. One worm was 4/5 of an inch long. The other worm was 1/10 of an inch long. How much longer was the longer worm? Write your answer as a fraction or as a whole or mixed number.
please help and thank you even if you dont
Answer:
7/10
Step-by-step explanation:
4/5 is greater than 1/10
I converted 4/5 into 8/10 because I multipled the numerator and denominator by 2.
Then I subtracted 8/10 from 1/10 and got 7/10
At a recent football game of 8,450 in attendance, 150 people were asked what they prefer on a hot dog. The results are shown.
Ketchup Relish Chili
54 36 60
Based on the data in this sample, how many of the people in attendance would prefer ketchup on a hot dog?
4,225
3,380
3,127
3,042
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Answer:
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Step-by-step explanation:
double the difference between 7 and y
Answer:
Difference indicates subtraction: The difference of a number and 9 is (x−9) Twice the difference means 2(x−9) We know that the answer to this is 2 , so as an equation: 2(x−9)=2.
Step-by-step explanation:
:|
Whoever answers my question the best gets brainliest
what is the constant rate of 21 + 0.99x?
what is the constant rate of 1.29x?
Answer:The constant percent rate of change of the function. The equation of the function is given as. f (x) = 35 (1.06)^x.
Hope this helps
Step-by-step explanation:
Joseph was kayaking on the Hudson River. While looking at the Breakneck Ridge trail-head, he lost a whole bag of donuts. Joseph didn't realize he had lost it for fifteen minutes. That's when he turned back and started going in the opposite direction. When he found the bag, which was going at the speed of the Hudson's current, it was two miles from the Breakneck Ridge trail-head. What is the speed of the current in the Hudson River?
Answer:
8 miles per hour
Step-by-step explanation:
Actually pretty simple. It took 15 minutes for the bag to travel two miles from the Breakneck Ridge so it will be four miles per 30 minutes six miles per 45 minutes and 8 miles per hour.
A car's speedometer is reading 55 miles per hour. The percent of error is 5%. What is the actual speed of the car? Round your answer to the nearest mile per hour.
A) 51 or 54 mph
B) 50 or 60 mph
C) 53 or 56 mph
D) 52 or 58 mph
2(4x-3)-8=4+2x please solve this linear equation I need help
Answer:
x = 3
Step-by-step explanation:
Perform the indicated multiplication. We get
8x - 6 - 8 = 4 + 2x
Combining the x terms results in:
6x - 14 = 4
Isolate x by adding 14 to both sides:
6x = 18
Find x by dividing both sides by 6:
x = 18/6 = 3
x = 3
The solution or the value of x for the given linear equation 2(4x-3)-8=4+2x is x = 3.
Given that:
2(4x - 3) - 8 = 4 + 2x
Use the distributive property on the left-hand side.
(2 × 4x - 2 × 3) - 8 = 4 + 2x
(8x - 6) - 8 = 4 + 2x
Using the associative property:
8x + (-6 - 8) = 4 + 2x
8x - 14 = 4 + 2x
Subtract both sides by 2x.
8x - 2x - 14 = 4
6x - 14 = 4
Add 14 on both sides.
6x = 18
Divide both sides by 6.
x = 3
Hence, the value of x is 3.
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A coordinate grid is drawn over a postcard of Da Vinci's Mona Lisa. The postcard is a 1/4 dilation of the original painting. If the tip of Mona Lisa's nose on the postcard is at the point (−4, 2), what would be the coordinates of the tip of her nose in the preimage?
Answer:
Step-by-step explanation:
(-16,8) is your answer!
Please help i’ll give brainliest!
For which set of data are the median and mode the same number?
A. 4, 5, 7, 7, 8, 10
B. 3, 5, 6, 8, 8, 9
C. 5, 5, 6, 8, 9, 10
D. 4, 5, 7, 8, 9, 9
Answer: A
Step-by-step explanation:
median: 7+7=14
14/2=7✅
mode: 7 shows up the most (twice)
ILL MARK BRAINLIEST TO FIRST CORRECT ANSWER
Dave solved a quadratic equation. His work is shown below, with Step 111 missing.
What could Dave have written as the result from Step 111?
\begin{aligned} \dfrac{1}{3}(x+4)^2&=48 \\\\ &&\text{Step }1 \\\\ x+4&=\pm 12&\text{Step }2 \\\\ x=-16&\text{ or }x=8&\text{Step }3 \end{aligned}
3
1
(x+4)
2
x+4
x=−16
=48
=±12
or x=8
Step 1
Step 2
Step 3
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
\left(\dfrac{1}{3}x+\dfrac{4}{3}\right)^2=48(
3
1
x+
3
4
)
2
=48left parenthesis, start fraction, 1, divided by, 3, end fraction, x, plus, start fraction, 4, divided by, 3, end fraction, right parenthesis, squared, equals, 48
(Choice B)
B
\left(\dfrac{1}{3}x\right)^2+\left(\dfrac{4}{3}\right)^2=48(
3
1
x)
2
+(
3
4
)
2
=48left parenthesis, start fraction, 1, divided by, 3, end fraction, x, right parenthesis, squared, plus, left parenthesis, start fraction, 4, divided by, 3, end fraction, right parenthesis, squared, equals, 48
(Choice C)
C
(x+4)^2=144(x+4)
2
=144left parenthesis, x, plus, 4, right parenthesis, squared, equals, 144
(Choice D)
D
(x+4)^2=16(x+4)
2
=16
Answer:
C is the correct answer
Step-by-step explanation: