Answer:
25%
Step-by-step explanation:
500,000-400,000 = 100,000
100,000 / 400,000 = .25 or 25%
Answer: the answer is 25%
Ten voltage measurements in a circuit have produced the following values: 49.3, 50.1, 48.9, 49.2, 49.7, 50.5, 49.9, 49.3, 49.8, 50.2 If the standard deviation for the above data set is 0.50 V, Which of the values can be rejected:
Answer:
48.9 and 50.5 are rejected.
Step-by-step explanation:
Since the standard deviation shows the spread of the values of the voltages, we need to find the mean of the values and use the standard deviation to find the minimum and maximum voltage allowed.
So mean μ = Σx/N where x = individual values of voltage and N = number of values = 10
So, μ = Σx/N
= (49.3 + 50.1 + 48.9 + 49.2 + 49.7 + 50.5 + 49.9 + 49.3 + 49.8 + 50.2)/10
= 496.9/10
= 49.69
≅ 49.7 V
So, the acceptable values of voltage are in the range μ ± σ where σ = standard deviation = 0.50 V.
So, the acceptable values of voltage are in the range 49.7 ± 0.50 V
So, minimum value = 49.7 V - 0.50 V = 49.2 V
and maximum value = 49.7 V + 0.50 V = 50.2 V
So any voltage outside the range 49.2 V ≤ x ≤ 50.2 V is rejected.
There are two values outside this range which are 48.9 and 50.5. So these two values are rejected.
Evaluate: f(x) = 2x^2 + 6x - 4; f(-5) *
[tex]f(x)=2x^2+6x-4\\[/tex]
Find f(-5) by substituting x = -5 in the equation.
[tex]f(-5)=2(-5)^2+6(-5)-4\\f(-5)=2(25)-30-4\\f(-5)=50-34\\f(-5)=16[/tex]
Therefore, the answer is f(-5) = 16
Answer:
f(-5)=126
Step-by-step explanation:
what you would do first is plug -5 in for x which would give you the equation of f(-5)= 2(-5)^2 + 6(-5) -4
then you multiply the negative 5 and you will get
f(-5)= -10^2 + 30 -4
remove that square by multiplying -10 by -10 and you will get
f(-5)= 100 + 30 -4
combine like terms and you will get
f(-5)=126
i hope this helped you and that i explained it to you in a way that you understand
boy weighs 55 pounds. How much does he weigh in kilograms? Use the following conversion: 1 kilogram is 2.2 pounds.
Answer:
24.9476
Step-by-step explanation:
55= 24 kilo. but since its 2.2 pounds its gonna be the answer i said (i think) Hope this helps
Answer:
24.94
Step-by-step explanation:
this is the answer
URGENT I ONLY HAVE 5 MINUTES LEFT I WILL GIVE YOU 42 points
PLEASE HELP MEEE!!! What is the experimental probability that Mr. Fell's class rolled a 3?
Probability = the number of ways of achieving success (getting the desired outcome).
P(E) = event with the desired outcome/total no. of events
P(E) = 7/60
Jake's mom is making peanut butter cookies with her chocolate chips. In her first batch, she used the ratio of 2:2 for the number of cups of chocolate chips to the number of peanut butter chips. In her second batch she used the ratio of 3:1 for the number of cups of chocolate chips to the number of cups of peanut butter and made the same number of cookies in the first batch. Jake made the following tape diagrams for his mom to reference. If her first batch used 4 cups of peanut butter chips, how many cups of chocolate chip did jakes mom use for the second batch?
Answer: i need help on this one to
Step-by-step explanation:
Answer:
6 just trust me
Step-by-step explanation:
What is the circumference of this circle?
Answer:
12.5663
Step-by-step explanation:
circumference = pi x diameter
d= 2r
d = (2)2
d=4
c=4pi
c=12.5663
Answer:
Option D : 12.56 km
........!
Help with this math problem right answers only points and brainlest!
Answer: it is c because there is 4 balls for red and 3 balls for clear not the same there is more possibility for red
Step-by-step explanation:
Answer:
The answer is C.
Can someone help me with this question
Evaluate 6+ 4/a + b/3 when A = 4 and when be = 3
30 POINTS PLEASE ANSWER ASAP!! The dimensions of a rectangular prism are shown below: Length: 2 1/4 Width: 1 foot Height: 1 1/4 The lengths of the sides of a small cube are 1 /4 foot each. Part A: How many small cubes can be packed in the rectangular prism? Show your work. (5 points) Part B: Use the answer obtained in part A to find the volume of the rectangular prism in terms of the small cube and a unit cube. (5 points)
Answer:
84 cubes
Step-by-step explanation:
Given,
The dimension of the rectangular prism are,
Hence, the volume of the prism,
Now, the volume of a cube = side³,
If side = ft,
Then the volume of each cube,
Hence, the number of cubes that can be packet in the prism
Answer:
Step-by-step explanation:
Answer:
84 cubes
Step-by-step explanation:
Given,
The dimension of the rectangular prism are,
Hence, the volume of the prism,
Now, the volume of a cube = side³,
If side = ft,
Then the volume of each cube,
Hence, the number of cubes that can be packet in the prism
The table shows the price for different numbers of cupcakes:
Answer:
Ok what are we supposed to do?
Step-by-step explanation:
please help me asap
Answer:
1. C
2.
Step-by-step explanation:
1. 1/3×7=7/3
3√7=2/1/3
if y varies jointly as x and x = 33 when y = 22, find x when y = 32
Answer:
answer is 43
Step-by-step explanation:
A family buying school clothes for their two children spends $48.46 at one store,$ 41.92 at another, and $22.97 at a third store. What is the total amount spent at the three stores?
Answer:
113.35
Step-by-step explanation:
Which of the following pairs of functions are inverses of each other?
Answers:
(C)
step by step Explanation:
Help any one plz thank you
I believe its the first one, think of it like a mirror you would flip the shape which would do make x negative and y positive, sorry if im wrong
A.
B.
C.
D.
(I think it’s C)
Answer:
The answer would be C. I believe it is C. The force believes it is C. So put C.
Which expression can be used to find 75% of 60?
75% of 60
25%
25%
25%
0.25
15
0.25
15
* 0.25
15
25%
0.25
15
0 (0.25)(60)
0 (0.25)(15)
O (3)(15)
O (360)
Answer:
(3)(15)
Step-by-step explanation:
75% of 60=60 x 0.75
=(3)(15)
Answer:C
Step-by-step explanation:
C
Solve the matrix equation AX=B for X.
Answer:
I think this is the solution
By calculating the inverse of matrix, X = [tex]\left[\begin{array}{ccc}0.5&2\\1.5&1\\\end{array}\right][/tex].
What is inverse of matrix?The inverse of matrix is another matrix, which on multiplying with the given matrix gives the multiplicative identity.
[tex]A = \left[\begin{array}{ccc}3&1\\4&2\end{array}\right] \\\\B = \left[\begin{array}{ccc}3&7\\5&10\end{array}\right] \\\\AX = B\\\\X = A^{-1}B\\ \\A^{-1} = adjA/|A| = \left[\begin{array}{ccc}1&-0.5\\-2&1.5\end{array}\right] \\\\X = \left[\begin{array}{ccc}0.5&2\\1.5&1\end{array}\right][/tex]
Learn more about inverse of matrix here
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Hi! Can someone help, please with a cherry on top?
Answer:
b bbb bbhdixbxidndidjd
4. To ship a package, it costs $5 for shipping supplies and $0.75 for each pound the piece weighs. If Tori
wants to ship a 12-pound package, how much would it cost?
Which number is 150 more than 689?
Answer:
839
Step-by-step explanation:
689+150=839
Hope this helped!
The area of a triangle is 105 square inches. The base is 15 inches. What is the height in inches?
Step-by-step explanation:
Area of triangle=1/2×base×Height
105=1/2×15×h
210=15×h
h=14inches
Find the perimeter of a rectangle with the length of 4 cm and a width of 7 cm.
Answer:
22 cm
Step-by-step explanation:
Amare runs 1/10 mile in 2/3 minutes. What is his speed in miles per minute
Answer:
6 2/3 minutes
Step-by-step explanation:
Amare runs 1/10 mile in 2/3 minutes
Therefore his speed in miles per minutes clean be calculated as follows
= 1/10, the denominator here is 10
= 10 × 2/3
= 20/3
= 6 2/3 minutes
Why are there so many pennies on Rows 1-4. How do you think the number of pennies on Rows 5-8 will compare?
Answer:
The number of pennies doubles each time, so the count grows exponentially. The number of pennies on Rows 5-8 will be much greater than on Rows 1-4.
Step-by-step explanation:
How many solutions are there for the system shown below?
2x² + y2 = 33
x2 + y + 2y=19
Answer:2 max because exponet
segment Y prime Z prime has endpoints located at Y'(0, 3) and Z'(−6, 3). segment YZ was dilated at a scale factor of 3 from the origin. Which statement describes the pre-image?
Answer:
YZ is located at Y (0, 1) and Z (-2, 1) and is one-third the size of Y'Z'.
Step-by-step explanation:
Since Y'Z' was dilated from the origin at a scale factor of 3, you can divide its X and Y coordinates by 3 to find the coordinates of YZ.
The statement fourth "segment YZ is located at Y (0, 1) and Z (−2, 1) and is one-third the size of segment Y prime Z prime" is correct.
What is dilation?The transformation dilation is used to resize an item. Dilation is a technique for making items appear larger or smaller. The image created by this transformation is identical to the original shape.
The question is incomplete.
The complete question is:
Segment Y prime Z prime has endpoints located at Y'(0, 3) and Z'(−6, 3). segment YZ was dilated at a scale factor of 3 from the origin. Which statement describes the pre-image?
segment YZ is located at Y (0, 9) and Z (−18, 9) and is three times the size of segment Y prime Z prime.segment YZ is located at Y (0, 3) and Z (−6, 3) and is the same size as segment Y prime Z prime.segment YZ is located at Y (0, 1.5) and Z (−3, 1.5) and is one-half the size of segment Y prime Z prime.segment YZ is located at Y (0, 1) and Z (−2, 1) and is one-third the size of segment Y prime Z prime.As we know, in the dilation image of the two-dimensional figure can be larger or smaller depending on the dilation factor.
We have:
segment Y prime Z prime has endpoints located at Y'(0, 3) and Z'(−6, 3).
After dilation:
Y (0, 1) and Z (−2, 1)
Thus, the statement fourth "segment YZ is located at Y (0, 1) and Z (−2, 1) and is one-third the size of segment Y prime Z prime" is correct.
Learn more about the dilation here:
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Solve the system of equations below by elimination.
(Show your work)
x+2y=5
2x+6y=12