Answer:
D, B, and F.
Step-by-step explanation:
Points D, B, and F lie on the line when graphed.
HELP ME ASAP!!
Which of the following tables represents a function?
x 1 −1 4 −4
y 8 8 10 10
x 2 2 3 3
y 6 −6 7 7
x 5 −5 5 −5
y 10 11 12 13
x 2 2 7 7
y 2 3 4 5
Answer:
1) x 1 −1 4 −4
y 8 8 10 10
Step-by-step explanation:
x 1 −1 4 −4
y 8 8 10 10
When each input in set x has exactly one output in set y, the relation is a function.
ALL OF THESE ARE NOT FUNCTIONS !!!!!!!!!!
x 2 2 3 3 number 2 has 2 different outputs → not a function
y 6 −6 7 7
x 5 −5 5 −5 number 5 and -5 have 2 different outputs → not a function
y 10 11 12 13
x 2 2 7 7 2 and 7 have 2 different outputs → not a function
y 2 3 4 5
Answer:
A. x 1 −1 4 −4
y 8 8 10 10
Step-by-step explanation:
what is 1000 + 903 efwkfhawrjkarlvkjvheargjdvbejeqbgjvkdsfbwrilcjeabjesbwelvkjabvwelrgkjahfhfwahfsaldkjfasdjfhsakdflsadjfshadjkfsahsaduhfaewsfhiaowsadlkffhsdflksfahflksadfsalslkfdlahsfaweiofwahfesdfdsakfsak;falskhfdsadfojanefwuhrohafdhsd,fesuighfdsdhasfl;sfkdsdguegreffjsafakslfdsdfhfdsaklfawfieow
Answer:
1903
Step-by-step explanation:
Answer:
the answer is 1903
Step-by-step explanation:
The average age of people attending a concert was 23 years old, with a standard deviation of 7. What percentage of people at the concert were older than 37 years old?
Answer:
2.28%
Step-by-step explanation:
We have that the mean (m) equals 23 and that the standard deviation (sd) is 7.
We can calculate the value z and in this way we can calculate the probability in this case with the calculation of the normal distribution table:
z = m - x / sd
we know that x is 37, replacing:
z = (23 - 37) / 7
z = -2
according to the normal distribution table the value of z = -2, is equivalent to 0.0228
So the probability is 2.28%
Examine these points on line u and line v.
Line u: (9,-8), (5,4)
Line v: (4,2), (7.-7)
How many points of intersection are there between line
u and line v?
zero
one
two
infinitely many
Answer:There are zero interception.
Step-by-step explanation:
The equation to Line U: is y=-3x +19 and the equation to line V is y=-3x +14
So as you can see ,the lines have the same slopes but different y-intercepts.This means the lines are going to be parallel when being graph.Parallel lines never cross or intersect so there is no points of intersection.
Answer:
A. zero.
Step-by-step explanation:
i took the assignment.
Provide the reflected ordered pair for each of the given ordered pairs. Reflect the ordered pair ( − 4 , 5 ) across the y-axis Reflect the ordered pair ( 0 , 3 ) across the x-axis
100 POINTS NEEDED RIGHT NOW! On a graph plot the points where the following function crosses the x-axis and y-axis g(x) = -5^x+5
Answer:
see below
Step-by-step explanation:
X-AXIS
when a graph intersects the x-axis, the y value is always 0.
Ex. Points (1,0), (-5,0), (-3,0), (6,0), etc. are all on the x-axis because y = 0.
to find where the graph crosses the x-axis, let y or g(x) = 0
0 = -5^x + 5 subtract 5 from both sides
-5 = -5^x if x is 1, that would produce -5 = -5
(1,0) x axis
Y-AXIS
when a graph intersects the y-axis, the x value is always 0.
Ex. Points (0, 1), (0, -2), (0, 3), etc. all lie on the y-axis because x = 0.
to find where teh graph crosses the y-axis, let x = 0
does the exponent "x" apply to (-5) or just 5?
[tex]-5^{x} or (-5)^{x}[/tex]
(-5)^0 + 5 any number with a 0 power is 1
1 + 5 = 6
(0, 6)
or -5^0 + 5
-1 + 5 = 4
(0, 4)
Answer:
The person above is correct. this is just confirmation
Step-by-step explanation:
When 40% of a number is added to twice the number, the result is 88. What is the number?
Answer:
36.67 or 36 and 2/3
Step-by-step explanation:
.4x + 2x = 88 divide by .4
x + 5x = 220 add like terms
6x = 220 divide by 6
x = 36.67 or 36 and 2/3
Simplify (2a – 5)2 using the square of a binomial formula.
Question 20 options:
A)
4a2 – 20a + 25
B)
4a2 – 25
C)
4a2 – 10a + 25
D)
4a2 + 25
Answer:
B
Step-by-step explanation:
0-o
pls helppp
The slope of the line segment joining the points (2, 3) and (2, -6) is undefined.
a)True b) False
Answer:
True
Step-by-step explanation:
The points (2,3) and (2,-6) are undefinable because it makes a vertical line. The slope cannot be defined.
What is the value of x ?
Answer:
720
Step-by-step explanation:
you just need to multiply
Help plz!!!!!!!!
In the diagram, Cand D are located such that AB is divided into three equal parts. What are the coordinates of Cand D?
A.(1.3). D(3,1)
B.(-3,0). D(3-6)
C.(20.3). D(3, 0)
D. (-1.5, 3), 011.5, 0)
Answer:
itsc c (0,3) ,d(3,0)
Step-by-step explanation:
If AB is divided into three equal parts then coordinates of C is (0, 3) and D coordinates are (3, 0)
What is Coordinate Geometry?A system that uses one or more numbers, or coordinates, to uniquely determine the position of the points or other geometric elements on a manifold such as Euclidean space.
Divide AB into three equal parts
[tex]X_{c}-X_{a}=\frac{1}{3} (X_{B}-X_{D})[/tex]
=3
[tex]Y_{a}-Y_{c}=\frac{1}{3} (Y_{A}-Y_{B})[/tex]
=3
So C is (0, 3)
[tex]X_{B} -X_{D} =\frac{1}{3} \times 9[/tex]
=3
[tex]Y_{D} -Y_{B} =\frac{1}{3} \times 9[/tex]
=3
So D coordinates are (3, 0)
Hence, if AB is divided into three equal parts then coordinates of C is (0, 3) and D coordinates are (3, 0)
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Find the volume of the following cone. Use 3.14 for π.
Question 2 options:
9847.04 cubic meters
39388.16 cubic meters
10257.33 cubic meters
41029.33 cubic meters
Answer:
A. 9847.04 cubic meters
Step-by-step explanation:
Answer:
B; 39388.16 cubic meters
Step-by-step explanation:
I think the following information will make things clearer:
The formula for finding the volume of a cone is V = πr²h/3:
We can substitute our lengths to find out the volume.
[tex]28^{2} = 784\\48 \: \div \: 3 = 16\\16\: \cdot \: 784 \: \cdot \: 3.14\\= 39,388.16[/tex]
Thusly, the volume of the cone is [tex]\boxed{39,388.16}[/tex].
Hope this helps!! ((:
Mr. Franco's records show that 44% of his students bring their own lunches to school. What is the percent and decimal of the students who DO NOT bring their own lunches.
Answer:
Percentage 56%
Decimal 0.56
Step-by-step explanation:
As percentages are out of 100, to work out the people who did not bring their own lunches you would simply minus the percentage of people that do which is 44 by 100, this gives you 56. this is because subtracting it from 100 we are removing the people that did from the total and so will leave us with the percentage of people that did not.
To work out the percentage who did not bring in their own lunches as a decimal you would divide the percentage of 56 by 100, this gives you 0.56. This is because percentages are out of 100%.
1) Minus 44 from 100.
[tex]100-44=56%[/tex]
2) Divide 56 by 100.
[tex]56/100=0.56[/tex]
help plz. question is in photo.
Answer:
A.) [tex]10\sqrt{5}[/tex]
Step-by-step explanation:
I'll explain rn hold up
Answer:
A.) [tex]10\sqrt{5}[/tex]
Step-by-step explanation:
Fist simplify [tex]40\sqrt{40}[/tex] :
[tex]40\sqrt{40}\\\\40\sqrt{4}\sqrt{10}\\\\40*2\sqrt{10}\\\\80\sqrt{10}[/tex]
Now simplify [tex]4\sqrt{8}[/tex] :
[tex]4\sqrt{8}\\\\4\sqrt{4}\sqrt{2} \\\\4*2\sqrt{2}\\\\8\sqrt{2}[/tex]
Insert both into expression:
[tex]\frac{80\sqrt{10}}{8\sqrt{2}}[/tex]
Simplify:
[tex]\frac{10\sqrt{10}}{\sqrt{2}}[/tex]
Rationalize:
[tex]\frac{\sqrt{2}}{\sqrt{2}}*\frac{10\sqrt{10}}{\sqrt{2}}\\\\\frac{10\sqrt{20}}{\sqrt{4}}\\\\\frac{10\sqrt{20} }{2}[/tex]
Simplify:
[tex]5\sqrt{20}[/tex]
Convert to simplest radical form:
[tex]5\sqrt{4*5} \\\\5\sqrt{4}\sqrt{5}\\\\5*2\sqrt{5}\\\\10\sqrt{5}[/tex]
:Done
True or false.
If the dilated image is larger than the pre-image, then the scale factor of the dilation is less than 1.
Answer:
False
Step-by-step explanation:
In order for the dilated image to become larger, it has to have a scale factor that is more than one not less than one.
False, Because If the scale factor is greater than 1, the image is larger than the preimage.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
We know that;
If the scale factor is between 0 and 1, the image is smaller than the preimage. Dilations with a scale factor between 0 and 1 are called reductions.
And, If the scale factor is greater than 1, the image is larger than the preimage. Dilations with a scale factor greater than 1 are called enlargements.
Thus, The given statement is false.
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What is the equation of the graphed line written in standard
form?
X-4y=4
X+4y=4
Y=1/4x-1
Y=-1/4x-1
Explanation:
Choices C and D are in slope intercept form, and not standard form, so we can rule them out. It's been choice A and choice B.
Solve for y in choice A, and you should get y = (1/4)x-1. The slope is 1/4. The positive slope tells us the line moves uphill as you move from left to right. In contrast, x+4y = 4 has a negative slope because it solves to y = (-1/4)x+1. Therefore, choice B can be eliminated.
To confirm that choice A is the correct answer, plug in each point and see if we get a true equation. Let's start with (0,-1)
Plug in (x,y) = (0,-1)
x-4y = 4
0-4(-1) = 4 ... replace x with 0, replace y with -1
0+4 = 4
4 = 4 ... true equation, so the point (0,-1) works
Now try the other point
x-4y = 4
4-4(0) = 4 .... plug in (x,y) = (4,0)
4-0 = 4
4 = 4 ... works as well
Both points make the equation true, so they are both on the same line.
If a cross section was cut that was parallel to the base of a triangular prism below a shape with that cross section be ?
A. Square
B. Triangle
C. Parallelogram
D. Rectangle
Name three exponent rules
Answer:
Quotient rules
Derivative rule
Negative exponents
hope this helps
in your class 6 students do not receive weekly allowance. 16 students receive $4 3 students receive $10 and 6 students receive $5. What is the mean weekly allowance?
Answer:
4
Step-by-step explanation:
During the 1920's there was an overproduction of consumer goods. What happened to the price of goods when demand did not increase?
Prices Increased
Prices decreased
Prices Skyrocketed
Prices stayed the same
Answer:
Prices decreased
Step-by-step explanation:
What happened to the price of goods when demand did not increase is prices decreased.
49 increased by twice a number m
Answer:
The third one I think
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
First -> twice m is -> 2m
Then
49 increased so -> 49+2m
14
Select the decimal that is equivalent to
40
Answer
40% = 0,4
ExplantionDivide 40 by 100
remove the 0s from both side
it will be
4 ÷ 10=
you go one step to the right and add a zero before the dot
which equal to
0.4
How are the solution sets to s<3 and |s|<3 different ?
Answer:
The solution set for [tex]s<3[/tex] would be (-∞,3)
The solution set for [tex]|s|<3[/tex] would be (-3,3)
Step-by-step explanation:
The solution set for [tex]s<3[/tex] can be any number that is lower than 3.
When we have the inequality [tex]|s|<3[/tex], we need to rewrite this without the absolute values to find our answer
[tex]|s|<3[/tex]
[tex]s<[/tex] ± [tex]3[/tex]
This can be be split into [tex]s<3, s<-3[/tex]
But, there one thing that needs to be done to the inequality with the-3. As we multiplied it by a -1 to make it negative, we must reverse the sign of the inequality. This leaves us with [tex]s<3, s>-3[/tex]
Now, we can combine these to get one inequality
[tex]-3<s<3[/tex]
Complete 4 A,B 9 for points.
Answer:
R = (1/t) (A/P - 1)
T = (1/r) (A/P - 1)
Find the slope of the line
Answer:
A) 3/2
Step-by-step explanation:
slope of the line equation:
m (slope) = (y₂ - y₁)/(x₂ - x₁)
Let:
(x₁ , y₁) = (-3 , -3)
(x₂ , y₂) = (1 , 3)
Plug in corresponding numbers to the corresponding variables:
m = (3 - (-3))/(1 - (-3))
Simplify:
m = (3 + 3)/(1 + 3)
m = (6)/(4)
m = 3/2
A) 3/2 is your slope.
~
Answer:
the answer is three over two 3/2
Step-by-step explanation:
the equation is
Ya-Yb
divided by
Xa-Xb
so basically:
-3-3/-3-1
Choose the function to match the graph.
f(x) = log x + 2
f(x) = log x - 2
f(x) = log (x + 2)
f(x) = log (x - 2)
Answer:
C; f(x)=log(x+2)
Step-by-step explanation:
How many 1/4 pound
hamburgers can be made
from 2 1/2 pounds of ground
beef?
Answer:
9 hamburgers
Step-by-step explanation:
[tex]\frac{1}{4}[/tex] × 2 = [tex]\frac{1}{2}[/tex]
[tex]\frac{1}{2}[/tex] × 5 =[tex]2\frac{1}{2}[/tex]
[tex]\frac{1}{4}[/tex] × 9 =2 [tex]\frac{2}{4}[/tex] 2
,so 9 hamburgers can be made
We need to find the number of quarter pound hamburgers that can be made from given the amount of ground beef.
10 quarter pound hamburgers can be made.
The amount of ground beef available is [tex]2\dfrac{1}{2}[/tex] pounds.
One hamburger has a mass of [tex]\dfrac{1}{4}[/tex] pound.
[tex]1\ \text{hamburger}=\dfrac{1}{4}\ \text{pound of beef}[/tex]
[tex]\\\Rightarrow 1\ \text{pound of beef}=4\ \text{hamburgers}[/tex]
[tex]2\dfrac{1}{2}\ \text{pound of beef}=(2+\dfrac{1}{2})\times4=10\ \text{hamburgers}[/tex]
So, a total of 10 quarter pound hamburgers can be made.
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If function g(x) = x2 + 2 is a transformation of the quadratic parent function, f(x) = x2, where is the y-intercept of function g located?
A.
(0,-2)
B.
(2,0)
C.
(0,2)
D.
(-2,0)
Answer:
The y-intercept of function g located at (0,2)
Step-by-step explanation:
Function :[tex]g(x)=x^2+2[/tex]
g(x) is a transformation of the quadratic parent function
We are supposed to find the where is the y-intercept of function g located
y intercept = the y-coordinate of a point where a line, curve, or surface intersects the y-axis i.e. x =0
So, substitute x = 0 in function
g(x)=x^2+2
g(0)=0^2+2
g(0)=2
So,(x,y)=(0,2)
So, The y-intercept of function g located at (0,2)
Answer:
c
Step-by-step explanation:
The lower the average monthly temperature, the higher the monthly heating bill.
There is a low correlation between the average monthly temperature and the monthly heating bill.
There is no correlation between the average monthly temperature and the heating bill.
The lower the average monthly temperature, the lower the monthly heating bill.
For the given equation, find the values of a, b, and c, determine the direction in which the parabola opens, and determine the y-intercept. Decide which table best illustrates these values for the equation:
y = x squared + 7 x
Answer:
a=1, b= 7, c=0
Opens upward since a is positive(meaning it has a minimum vertex)
Y-int: (0,0)
Step-by-step explanation:
y=[tex]x^{2}[/tex]+7x
In order to find, the y-intercept, x has to be 0, so plug in 0 for x
y=[tex]0^{2}[/tex]+7(0)
y=0
So the y intercept: (0,0)
The equation form a parabola that opens up and the y intercept is at y = 0. a = 1, b = 7 and c = 0
What is a quadratic function?A quadratic function is in the form:
y = ax² + bx + c
Given that:
y = x² + 7x, hence:
a = 1, b = 7 and c = 0
The equation form a parabola that opens up and the y intercept is at y = 0.
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