Part A: Kennedy's expression is incorrect because 0.07 is 7 percent, not 70.
Part B: The correct expression would be 0.7 * 20, which equals 14
Evaluate the expression: -125 + 13 − 11 127 -90 123 -123
Answer:
-101485
Step-by-step explanation:
it seems like your question is incomplete, you dont have all the signs. this is the answer i got
Which of the following terms appear in the expansion of (x + y) 10? The letter a
in each term represents a real constant
A. axbys
B. ays
c. axy
D. axs
What is the range of the function y=√x+5?
O y≥-5
O y≥0
O yz√√5
O y≥5
It's not clear what is under the square root. Is it solely the x only?
In other words, is the equation this: [tex]y = \sqrt{x}+5[/tex] ?
If so, then the range is y≥5 because y = 5 is the smallest possible output. In other words, we can have y = 5 or y > 5. I recommend using a tool like Desmos to graph and verify.
-----
OR is the +5 also under the square root?
Is the equation this? [tex]y = \sqrt{x+5}[/tex]
If so, then the range would be y≥0
The smallest output possible of a square root function is 0. We cannot get negative outputs. This explains how y = 0 is the smallest output. So y = 0 or y > 0, or in short, y≥0
The solution is, the range of the function y=√x+5 is y∈(∞,∞) is Range, from the given options y≥0.
What is range ?The range of a function is the set of values that the function assumes. This set is the values that the function shoots out after we plug an x value in.
here, we have,
we know that,
Range of a function is defined as those values of y, for which x is Defined.
The given function is
y=√x+5
Squaring both sides
we get,
y² = x+5
or, x = y²- 5
x is defined for ,all Real values of y.
For any real y,we get defined value of x.
That is , y ∈ R
→→y∈(-∞,∞)⇒Range
Hence, The solution is, the range of the function y=√x+5 is y∈(∞,∞) is Range, from the given options y≥0.
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Help me on this ,appreciate it.
Answer:
I would say that the travling time is 3.5 hours and the Stationary time would be 2.5 hours.
Step-by-step explanation:
I'm sorry if I'm worng, (Can I get brainliest??)
An elevator goes up in a multi storey building at the rate of 6 m/min. If it starts from 20 m below the ground level, how long will it take to reach 320 m ?
Answer:
56 minute 40 seconds
Explanation:
unit rate: 6 meters per minute
The elevator starts from 20 m below ground level.
So, in total have to cover distance = 20 + 320 = 340 meter
Time taken = distance/speed
= 340/6
= 56.67 minute
≈ 56 minute 40 seconds
please help me asap!!
8. Compare the function g(x) modeled by the graph and the functionf (x) =
21x + 2) + 3.
True or false. Explain.
a) f(x) has a greater y intercept
b) g(1) > f(-1)
c) f(x) increases at a faster rate than g(x)over interval [0, 3).
Answer:
a) false
b) true
c) true
Step-by-step explanation:
Part (a)The y-intercept of a function is the point when x = 0
⇒ f(0) = 2|0 + 2| + 3
= 2|2| + 3
= 4 + 3
= 7
From inspection of the graph, the y-intercept of g(x) is (0, 7)
Therefore, the y-intercepts of f(x) and g(x) are the same.
"f(x) has a greater y-intercept" → false
Part (b)
From inspection of the graph, g(1) = 6
⇒ f(-1) = 2|-1 + 2| + 3
= 2|1| + 3
= 2 + 3
= 5
Therefore, g(1) > f(-1) → true
Part (c)The average rate of change of function f(x) over the interval a ≤ x ≤ b is given by:
[tex]\dfrac{f(b)-f(a)}{b-a}[/tex]
From inspection of the graph:
g(0) = 7
g(3) = 4
[tex]\textsf{average rate of change of g(x)} \implies \dfrac{4-7}{3-0}=-1[/tex]
f(0) = 7 (from part (a))
f(3) = 2|3 + 2| + 3
= 2|5| + 3
= 10 + 3
= 13
[tex]\textsf{average rate of change of f(x)} \implies \dfrac{13-7}{3-0}=2[/tex]
Function g(x) decreases over [0, 3] at the rate of -1
Function f(x) increases over [0, 3] at the rate of 2
Therefore, "f(x) increases at a faster rate than g(x) over interval [0, 3]" is true
**Please see the attached graph for reference**
The interval [0, 3] is shaded in grey
f(x) is shown in red
The added 2 points are f(-1) and g(1)
salaries of 38 college graduates who took a statistics course in college have a mean, x, of $69,800. assuming a standard deviation, o, of $16,094, constructs a 95% confidence interval for estimating the population mean u.
Answer:2,652,400
Step-by-step explanation:
A scientist studying earth's rotation determines that a specific location on earth's equator travels about 40,000 kilometers in one day. What is the approximate speed of the location, in miles per hour, due to earth's rotation
Answer:
Step-by-step explanation:
Discussion
The first thing you have to do is convert km to miles
Formula
1 mile = 1.6 km
x mile = 40000 km Cross Multiply
Solution
1.6*x = 1 * 40000 Divide by 1.6
x = 40000/1.6
x = 25000 miles
Answer Part 1
The distance covered is 25000 miles
Discussion Part 2
That's the distance covered in a day. Now we need to convert that to speed. The time (in hours) for 1 day is 24 hours.
Givens
d = 25000 miles
t = 24 hours
s = ?
Solution
s = d/t
s = 25000 / 24
s = 1041.66 miles per hour
Answer: 1041.66 is what is to be entered as your answer
Data were recorded for a car’s fuel efficiency, in miles per gallon (mpg), and corresponding speed, in miles per hour (mph). Scatterplot A displays the relationship between the car’s speed and fuel efficiency. Two transformations of the data are shown in scatterplots B and C. Scatterplot B displays the relationship between the car’s speed and the natural log of the fuel efficiency. Scatterplot C displays the relationship between the natural log of the car’s speed and the natural log of the fuel efficiency.
Which scatterplot best represents the relationship between a car’s speed and its fuel efficiency?
A linear model would best represent the relationship because scatterplot A is fairly linear.
An exponential model would best represent the relationship because scatterplot B is fairly linear.
A power model would best represent the relationship because scatterplot C is fairly linear.
A linear model would best represent the relationship because scatterplot C is fairly linear.
Answer:
A power model would best represent the relationship because scatterplot C is fairly linear.
Step-by-step explanation:
I think that is the answer but I am not sure between option 2 and 3. I would eliminate linear models for this graph for sure.
I hope I helped you a little!
Have a nice day! :)
Name the
solid figure
Answer:
That is a rectangular prism
Step-by-step explanation:
Because I'm smart
Please help!! This is 30 points, I will mark brainiest if to the first person if two people answer.
The experimental (aka empirical) probability for your friend is 1/500 = 0.002 since she hit the bulls eye once out of 500 tries. This is a 0.2% chance.
To calculate the theoretical probability, we have to determine the area of each circle:
A = smaller circle area = pi*r^2 = pi*(0.25)^2 = 0.0625pi
B = larger circle area = pi*r^2 = pi*6^2 = 36pi
Divide A and B to get the theoretical probability
A/B = (0.0625pi)/(36pi) = 1/576 = 0.0017 approximately
This is fairly close to the 1/500 = 0.002 your friend got, which in my opinion means that her result is expected. She does seem a bit more skilled than expected since she managed to hit the bulls eye in 76 fewer tries (576-500 = 76). However, I would stick to the "result is expected" answer, since problems like this tend to have variability.
SOMEBODY HELP ME PLSSS
Answer:
5.88*10^12
Step-by-step explanation:
You have to move the decimal place over 12 times and to the left, so it's positive.
4) Find the area of a
rectangular poster (in cm²)
that is 95 cm by 45 cm.
PLS HELPPPP
Answer:
I think it is 4275cm square.
Answer:
Area= 4275cm
Step-by-step explanation:
The area formula for a rectangle is length x width so if we plug in the numbers and multiply we get 4275 as our product.
The astronauts of Expedition 28 on the international Space Station spend 15 weeks in space. Convert the time to minutes.
A prism is completely filled with 270 cubes that have edge length of 13
in.
What is the volume of the prism?
Answer:
593190 cubic inches
Step-by-step explanation:
to solve this equation you must first find out the volume of one cube
that can be modeled by 13*13*13 or more simply 13^3
13^3 = 2197
then you multiply that to 270
2197 * 270 = 593190
that is your answer
Which inequality is equivalent to 5(2x-6)+6(3-x)<2x+4
Answer: [tex]x < 8\\[/tex]
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Interval Notation: (-∞, 8)
The equivalent inequality to 5(2x-6)+6(3-x)<2x+4 is x < 8.
Let's simplify the given inequality step by step:
Original inequality: 5(2x - 6) + 6(3 - x) < 2x + 4
Distribute the constants inside the parentheses:
10x - 30 + 18 - 6x < 2x + 4
Combine like terms on the left side:
(10x - 6x) - 30 + 18 < 2x + 4
4x - 12 < 2x + 4
Subtract 2x from both sides to isolate the x terms on the left side:
4x - 2x - 12 < 4
Simplify:
2x - 12 < 4
Now, add 12 to both sides:
2x - 12 + 12 < 4 + 12
2x < 16
Finally, divide both sides by 2:
2x / 2 < 16 / 2
x < 8
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I need help ASAP please
Can someone plot this for me please.
Represent the sum of the complex numbers –4 + 3i and — 2 — on the complex plane.
Use the Point and Segment tools to plot all required points and segments.
The sum of -4 + 3i and -2 - i implies that we plot -6 on the real side, and 2i on the imaginary side of the complex plane
How to plot the points?The complex numbers are given as:
-4 + 3i and -2 - i
The sum of these numbers is represented as:
Sum = -4 + 3i -2 - i
Collect the like terms
Sum = -4 -2 + 3i - i
Evaluate the like terms
Sum = -6 + 2i
The above means that we plot -6 on the real side, and 2i on the imaginary side of the complex plane
See attachment for the graph of the sum
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Three forces, (15i+j) N, 5qi – pj) N and (-3pi - gj) N, where p and q are
constants, act on a particle.
Given that the particle is in equilibrium, find the value of p and the value of q.
Given that the particle is in equilibrium, the value of p = 2.5 and the value of q = -1.5
To answer the question, we need to know what force are
What is a force?A force that thing which cause a change in motion of an object
Since there are three forces (15i + j) N, (5qi – pj) N and (-3pi - qj) N, where p and q are constants, act on a particle. Given that the particle is in equilibrium, the resultant force on the particle is zero.
What is a resultant force?A resultant force is a vector sum of two or more forces
So, (15i + j) N + (5qi – pj) N + (-3pi - qj) N = 0i + 0j
15i + 5qi - 3pi + j - pj - qj = 0i + 0j
(15 + 5q - 3p)i + (1 - p - q)j = 0i + 0j
Equating components, we have
15 + 5q - 3p = 0 and 1 - p - q = 0
5q - 3p = -15 (1) and - p - q = -1
5q - 3p = -15 (1) and p + q = 1 (2)
From equation (2), p = 1 - q (3).
The value of q
Substituting p into (1), we have
5q - 3p = -15 (1)
5q - 3(1 - q) = -15
5q - 3 + 3q = -15
5q + 3q = -15 + 3
8q = -12
q = -12/8
q = -3/2
q = - 1.5
The value of p
Substituing q into (3), we have
p = 1 - q
p = 1 - (-3/2)
p = 1 + 3/2
p = (2 + 3)/2
p = 5/2
p = 2.5
So, the value of p = 2.5 and the value of q = -1.5
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Line contains points a,b, and c from left to right. ac =60 bc 2times ab
Answer:
AB=20, BC=40
Step-by-step explanation:
Let AB be x
Therefore, ATQ:
x+2x=60
x=60/3=20
AB=20
And BC =2(AB)
So BC=2*20=40
Write the coordinates of the vertices
after a reflection over the line y = -4.
Answer:
--------------------------- HeyA --------------------------
Explanation :
- GiveN :
C( 8 , -4 ) , D( 9 , -4 ) , E( 9 , 1 ) & F( 8 , 1 ) are the vertices of the given rectangle.Reflection in the line y = k :
P( x , y ) ----------------------P'( x , 2k - y )
C( 8 , -4 ) ----------------------C'( 8 , -4 ) D ( 9 , -4 ) ----------------------D' ( 9 , -4 ) E ( 9 , 1 ) ----------------------- E' ( 9 , -9 )F ( 8 , 1 ) ----------------------- F' ( 8 , -9 ) C' ( 8 , -4 ) , D'( 9 , -4 ) , E' ( 9 , -9 ) & F'( 8 , -9 ) are the coordinates of the vertices after a reflection over the line y = -4 .-----------------HappY LearninG <3 -----------------
What quadrant does the terminal side of this angle lie in?
A) Quadrant ll
B) Quadrant IV
C) Quadrant l
D) Quadrant III
Answer:
D. quadrant III
Step-by-step explanation:
Investment: $200
Simple Interest Rate 2%
Function:
Sketch:
Please help me and I’ll give you brainlist
The width of the desk is 7 in. The perimeter of the desk is 63 in. What is
the length of the desk?
The formula to find the perimeter of a rectangle is as follows:
[tex]P=2l+2w[/tex]
[tex]l[/tex] = length[tex]w[/tex] = widthSolving the QuestionWe're given:
[tex]w[/tex] = 7 inches[tex]P[/tex] = 63 inchesWe are solving for [tex]l[/tex]⇒ Plug the given information into the perimeter formula and solve for l:
[tex]P=2l+2w\\63=2l+2(7)\\63=2l+14\\49=2l\\l=24.5[/tex]
AnswerTherefore, the length of the desk is 24.5 inches.
A local print shop has a big order of pamphlets to print, so they decide to use two of their printers for the one job. The newest printer can print the pamphlets four times as fast as the old printer Working together the printers can complete the job in 4 hours. How many hours would it take cach printer to print all of the pamphlets by itself a . Use the table to set up a rational equation to describe the situation. Use the variable x to represent the time it takes the newest printer to complete the job .
If both printers work together. Then the number of the pamphlets will be 20x in four hours.
What is Algebra?Algebra is the study of mathematical symbols, and the rule is the manipulation of those symbols.
A local print shop has a big order of pamphlets to print, so they decide to use two of their printers for the one job.
The newest printer can print the pamphlets four times as fast as the old printer Working together the printers can complete the job in 4 hours.
Let x be the number of the pamphlets are printed by the old printer in one hour.
Then the number of the pamphlets are printed by the new printer in one hour will be 4x.
Then if they work together, then the number of the pamphlets in one hour will be 5x.
Then the number of the pamphlets in 4 hour will be
→ 5x × 4
→ 20x
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Solve this equation what is 5/6+4/6=
Answer:
[tex]1\frac{2}{3}[/tex]
Step-by-step explanation:
[tex]\frac{5}{6} + \frac{4}{6} = \frac{10}{6} = \frac{5}{3} = 1\frac{2}{3}[/tex]
Can someone help me with this and pls explain how u did it if you’re able to I don’t need an explanation but it would be appreciated I’ll give brainliest if it’s correct
[tex]\huge{\green}\fcolorbox{blue}{cyan}{\bf{\underline{\red{\color{red}Answer}}}}[/tex]
To find :-
The value of x
Given :-
Here 2 angles are given
142°, and (3x + 22)°
Solution :-
We can see here the 2 lines intersect each other.
And the angle is formed
Since the angles are just opposite to each other so they are equal.
142° = (3x + 22)° {vertically opposite angles}
[tex]142 - 22 = 3x \\ 120 = 3x \\ \frac{120}{3} = x \\ 40 = x[/tex]
Result :-
The value of x is 40°.
3. The perimeter of a rectangle is 24 cm. One side is 7 cm.
Work out the length of the other sides,
7 cm
cm
cm
Not drawn
to scale
ст
Answer:
L=5cm
Step-by-step explanation:
[tex]p = 2(l + w) \\ 24 = 2(l + 7) \\ l + 7 = 12 \\ l = 5cm[/tex]
The relationship between
A:All of these
B:Adjacent
C:Linear Pair
D:None of these
E:Supplementary
Answer:
I think you are intended to pick A as your answer. But D is a thorn. The question especially D is not worded accurately.
Step-by-step explanation:
Remark
I take it that you are asked what the relationship between a and b is. What you can say is that a and b are a linear pair if a and be have 1 leg on a ray. I will treat it that way, but you should always question whether that is true or not.
Solution
Adjacent Math meaning: Each angle has a common side and a common point where they meet. A and B are adjacent: True.
Linear Pair. True A and B are adjacent angles and they are also supplementary. So C and E are both true.
That makes D incorrect.
ANSWER THIS CORRECTLY FOR BRAINLIEST (algebra)
Answer:
24416.64 cubic centimeters
Step-by-step explanation:
The equation for the volume of a sphere is [tex]V=4/3\pi r^3[/tex]. The radius given is 18cm and we are instructed to use 3.14 instead of pi, so our equation will be [tex]V=4/3(3.14)(18^3)[/tex]. Once this is multiplied out, we see that the volume of the sphere is 24416.64 cubic centimeters.
Hope this helps! :)
