Answer: [tex]y=-6x^2[/tex] never touches the y-axis
[tex]y=-6x^2-4[/tex] touches the y-axis at -4
Step-by-step explanation:
Because -4 means that the graph touches the y-axis at negative 4, not having it means that it never touches the y-axis
Which multiplication expression could the area model represent
A: 1.5x4.7
B: 1.5x47
C: 15x0.47
D: 15x4.7
Answer:
1.5 * 4.7
Step-by-step explanation:
The top adds to 4+.7 = 4.7
The side adds to 1+.5 = 1.5
When they multiply it is
1.5 * 4.7
complete the square to solve the equation below (check all that apply)
Answer:
A and D
Step-by-step explanation:
We have to create a perfect square. To make x^2+bx+c into a perfect square, c has to be (b/2)^2. In this case, b is -10. so, c has to be (-10/2)^2, which is 25. To make the left hand side 25, we would have to add 30 to both sides.
This leads to a new equation:
x^2 - 10x + 25 = 9+30
x^2 - 10x + 25 = 39
Now, we can change the left hand side to a perfect square.
(x-5)^2 = 39. (the -5 is b/2)
Then we square root both sides;
x-5 = +/- sqrt39. (When you square root an expression, remember that you need to include both the positive AND negative)
x = 5-sqrt39 or 5+sqrt39
Does this equation y=87.2/x represent a direct or inverse variation?
Answer:
Inverse relationship
Step-by-step explanation:
The equation we are looking at is;
y = 87.2/x
which implies xy = 87.2
If it was a direct relationship
y = constant * x
if it was inverse, it would have been
y * x = constant
since 87.2 is a constant, the question looks exactly like the second scenario.
This means that what we have is an inverse relationship
Find an equation for the line that passes through the points (2, 3) and (-6,5).
Please I need help
Answer:
work is shown and pictured
what are the solutions of x^2-4x-9=29
Answer: x =(4-√168)/2=2-√ 42 = -4.481
x =(4+√168)/2=2+√ 42 = 8.481
Step-by-step explanation:
Answer:
x = -4.48, 8.48 to the nearest hundredth.
Step-by-step explanation:
x^2 - 4x - 9 = 29
Completing the square:
(x - 2)^2 - 4 - 9 = 29
(x - 2)^2 = 29 + 13 = 42
x - 2 = +/-√42
x = 2 +/-√42
x = 8.48, -4.48 .
Patty’s gymnastics class is 5/6 of an hour long. Patty practices five different skills and spends the same amount of time on each skill. How can you find how much time she spent on each skill? Explain how to use an area model to solve the problem.
Answer:
10 minutes
Step-by-step explanation:
5/6 of an hours is 50 min. Assume x is the time she spends on each skill.
5x=50
x=10
She spent 1/6 of an hour i.e. 10 minutes on each skill.
What is area model?In area model for multiplication a rectangle is used to represent multiplication between two quantities. Width and Length of the rectangle are assigned the numerical value of the two quantities being multiplied.
Solution
Let the number of skills be represented by the length of the rectangle in the figure.
Let the time spent(in hours), which is same for all skills, on each skill be represented by the width of the rectangle in the figure.
The area of the rectangle = length × width = 5 × t = 5t hours.
This area represents total time spent on five skills, which is 5/6 hours.
The smaller rectangles into which the whole rectangle is divided have area 1 × t = t hours. This represents time spent on one skill.
From the figure, such five smaller and equal rectangles constitutes the whole rectangle.
So, area of one smaller rectangle = Area of big rectangle / number of small rectangles = (5/6)/5 = 1/6 hours.
Since, this represents time spent on one skill. So, the required time is 1/6 hours.
She practice each skill for 1/6 of an hour.
Learn more about the area model here
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Larry rolls 2 fair dice and adds the results from each. Work out the probability of getting a total that is a multiple of 3.
Answer:
12/36 = 1/3
Step-by-step explanation:
draw a possibility diagram or table where you get the possible outcomes. 1 to 6 along the bottom and 1 to 6 across.
you will results such as 11 12 13 14 15 16
21 22 23 24 25 26
and so on.
Then, you total up each of them and will get
2 3 4 5 6 7 from the first row
3 4 5 6 7 8 from 2nd row
and so on.
from the final results, count how many are multiples of 3.
we should get 12 and over total possible outcomes which is 36, since it's a 6 by 6 table.
Find the volume of the composite solid.
Answer:
Equal.
Step-by-step explanation:
The volume of the rectangular prism is:
V = length x width x height
V = 3a x 2b x c
V = 6abc
The volume of the pyramid is:
V = (base area x height)/3
V = (a x b x 18c)/3
V = 18abc/3
V = 6abc
The two volumes are equal.
please thank youuu asap!!!!!!!!!!!!!!!!!
All direct proportional graphs go through the origin (0,0). So this is where one point could go. The second point is found by going up 5 units and then to the right 3 units to get to (3,5)
Draw a straight line through (0,0) and (3,5) to graphThe equation of this line is y = (5/3)x
if(x+3) and 133 digree is a pair of vertically opposite angles then the measure of x is
Answer:
x=130
Step-by-step explanation:
as vertically opposite angles are equal therefore,
133=X+3
x=133-3= 130
I hope it helps
A weather station reports that there is a 40% chance of rain today. What is the probability that it will not rain today?
Answer:
Since the full percentage of something is 100% thats because 1*100 = 100.
So since it has 40% chance of rain what would 100-40 be? Well it would be 60. So the probability that it will not rain is
60%Can I please have help
Answer:
A (1,0), B (3,0) Q (2,-1) P(0,3)
Step-by-step explanation:
A(1,0) B (3,0) these are the roots of the current graph so the factors or the x-intercepts.
Q is the minimum so it is halfway between the x-intercepts
halfway = 3+1/2 , x=2
plug x=2 into the equation
y=(2-1)(2-3)
y= -1
therefore Q = (2,-1)
P is the y-intercpet when x=0, so plug x=0 into the equation
y=(0-1)(0-3) = 3
therefore Q =
(0,3)
Select the correct answer. Consider these equations: f(x)=[tex]x^{3}[/tex]+3 g(x)=[tex]x^{2}[/tex]+2 Approximate the solution to the equation f(x) = g(x) using three iterations of successive approximation. Use this graph as a starting point.
Answer:
A
Step-by-step explanation:
The solution to these two graphs will be when they are equal. Therefore:
[tex]x^3+3=x^2+2 \\\\x^3-x^2+1=0 \\\\x\approx -0.755\approx -\dfrac{13}{16}[/tex]
Hope this helps!
Answer:
-13/16
Step-by-step explanation:
f(x)=x^3+3
g(x)=x^2+2
We know the solution is around -1
x^3+3 = x^2 +2
Subtract x^2+2 from each side
x^3 -x^2 -1 = f(x)
We need to find the derivative
3x^2 -2x = f'(x)
Newtons method of successive approximation states
xn+1 = xn -f(xn) / f'(xn)
Function
x3−x2+1
Derivative
x⋅(3⋅x−2)
x
-0.75488
Iterations
Step x F(x) |x(i) - x(i-1)|
x1 -0.8 -0.152000 0.152000
x2 -0.75682 -0.006259 0.006259
x3 -0.75488 -0.000012 0.000012
The approximate answer is -0.75488
The closest answer given is -13/16
Given r,s,t are midpoints of AC,AB, and CB use the figure below to complete the following problem
Answer:
The first option, RT.
Step-by-step explanation:
what is the slope-intercept equation of the line below?
Answer:
4
Step-by-step example
Slop is the
A fair dice is rolled.
Work out the probability of getting a factor of 8.
Give your answer in its simplest form.
Answer:
1/2
Step-by-step explanation:
The factors of 8 are 1,2,4
So there are three factors of 8 on the dice
There are a total of 6 numbers on the dice
So the probability is ,3/6
Which in its simplest form is 1/2
Please help! Correct answer only!
In a raffle, one ticket will win a $900 prize, and the remaining tickets will win nothing. There are 500 in the raffle. If you have a ticket, what is the expected payoff?
Answer:
" Expected Payoff " ⇒ $ 1.80 ; Type in 1.80
Step-by-step explanation:
Take the probability of winning into consideration;
[tex]Total Number of Tickets - 500,\\Tickets 1 Person Can Enter - 1 Ticket,\\\\Probability of Winning - 1 / 500,\\Money Won - 900 Dollars,\\\\Proportionality - 1 / 500 = x / 900 - where, x = " Expected Payoff "\\1 / 500 = x / 900 - CrossMultiplication,\\\\500 * x = 900,\\x = 900 / 500,\\x = 1.80 Dollars Won!\\\\Conclusion ; x = 1.80 Dollars[/tex]
Solution ; " Expected Payoff " ⇒ $ 1.80
Find the area of rhombus. Please help
Answer:
195
Step-by-step explanation:
The area of a rhombus is the product of the two diagonal lengths / 2. The two diagonals measure 15 and 26 respectively. Therefore, the rhombus' area is 390/2=195
does y = 2x + 3 and y = 2x – 11. intercept
Answer:
yesssssssssssssssssssssssssssssss
Helpppp with this asappp plz❤️
Step-by-step explanation:
1 (b) ( boy, boy), (boy,girl), ( girl,boy ), ( girl, girl )
(c) 4
(d) 2/4 = 1/2
(e) 1/4
2 (a) (1,head), (1,tail), (2,head), (2,tail), (3,head), (3,tail), (4,head), (4,tail)
(b) (A,1) (A,2), (A,3), (B,1), (B,2), (B,3), (C,1), (C,2),
(C,3)
Please Help ASAP!
What values are in the domain of the function f(x)= 4-2x, if the range is {0,4,8}
Replace the range for f(x)
So...
0=4-2x
x=2
4=4-2x
x=0
8=4-2x
x=-2
Solve!
These are your domains!
What equation represents three less than 1/5 of a number is 28
the answer is x÷5-3 = 28
Answer:
(28+3)×5=x
Step-by-step explanation:
28+3= [tex]\frac{1}{5}[/tex] of x
31 is 1/5 of x
x is 155
Checking:
155÷5-3=28
31-3=28
x is 155
Alternate solution:
(28+3)×5=x
help pls tysm
What are two examples of financial institutions?
Answer:
The major categories of financial institutions include central banks, retail and commercial banks, internet banks, credit unions, savings, and loans associations, investment banks, investment companies, brokerage firms, insurance companies, and mortgage companies
Step-by-step explanation:
sorry i did not put 2 examples, i put too many examples lollll
Answer:
There are two primary types of financial institutions non-depository and depository.
Step-by-step explanation:
an insurance company would fall under the non-depository group, and a credit union would be defined as a depository institution.
Given the equation y = 2x - 8, what is the slope and the y-intercept? A.) m = 8 and b = 2 B.) m = 2 and b = 8 C.) m = 2 and b = -8 D.) m = -8 and b = 2
Answer:
C.) m = 2 and b = -8
Step-by-step explanation:
Generally:
In an equation of the form y = mx + b
the slope is m
the y-intercept is b
In our equation y = 2x - 8 = 2x + (-8)
then
m = 2 and b = -8
if the sum of two ratinol numbers is 30 and there ratio is 2:3 then find the numbers please help me with this
Answer:
12 and 18
Step-by-step explanation:
sum the parts of the ratio, 2 + 3 = 5
30 ÷ 5 = 6 ← value of 1 part of the ratio
2 parts = 2 × 6 = 12
3 parts = 3 × 6 = 18
The numbers are 12 and 18
Which graph represents the solution set to the following system of linear inequalities? y <= 2x + 7 y > - 1/3 * x - 2
A linear inequality seems exactly like a linear equation where the inequality sign is replaced by the equality sign.
Solution set is the dark region enclosed by both inequality equation shown in attached graph.
Given inequality are, [tex]y\leq 2x+7,y>-\frac{1}{3}x-2[/tex]
By using graphing tool, draw graph of both inequality.
The dark region enclosed by both inequality equation shown in attached graph is solution set for given equation.
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BRAINLIEST WILL BE MARKED(THAT MEANS- 3 EXTRA POINTS) HERE! GRAPHING HELP 101
The graph of f(x)=x2 is shown.
Use the parabola tool to graph the function g(x)=(1/5x)2.m
The 1/5 is a fraction.
The graph with the blue highlight is my answer. LET ME KNOW IF MY ANSWER IS RIGHT OR WRONG! ASAP PLEASE AND THANK YOU WILL MARK BRAINLIEST!
Answer:
I think its wrong. For g(5)=(5/5)^2=1 and in your graph is something close to 3. The correct graph for [tex]g(x)=(\frac{1}{5}x)^2[/tex] is
Answer:
False
Step-by-step explanation:
Took the test and this is what I got
The expression sin^-1(4/5) has and infinite number of values. True or false?
It is indeed false.
[tex]\sin^{-1}x[/tex] is a function that takes values of [tex]x[/tex] between -1 and 1, and takes on values between -π/2 and π/2. Most importantly, it's a function that takes *one* value in its domain and assigns it to exactly *one* value in its range. Hence [tex]\sin^{-1}x[/tex] is one-to-one.
It's true that [tex]\sin x=\frac45[/tex] has infinitely many solutions, but [tex]\sin x[/tex] itself is not one-to-one.
Answer:
False
Step-by-step explanation:
Now look at this information
[tex]2y + 3 \leqslant 11[/tex]
What is the largest value that y could be?
Answer:
4
Step-by-step explanation:
Given
2y + 3 ≤ 11 ( subtract 3 from both sides )
2y ≤ 8 ( divide both sides by 2 )
y ≤ 4
Since y has to be less than or equal to 4
Then the largest value y could be is 4
what would be the answer???
Answer:
120
Step-by-step explanation:
The sum of the angles in a quadrilateral is 360 degrees
2t+t+2t+t = 360
6t = 360
Divide by 6
6t/6 = 360/6
t = 60
Angle Z = 2t
Angle Z = 2*60 = 120
Answer:
[tex]120 \: \: degrees[/tex]
Second answer is correct.
Step-by-step explanation:
The sum of the angles in a qudrilateral = 360°
[tex]t + 2t + t + 2t = 360 \\ 6t = 360 \\ \frac{6t}{6} = \frac{360}{6} \\ t = 60[/tex]
angle z
[tex]2t = 60 \times 2 \\ \: \: \: \: \: \: \: = 120[/tex]
