Answer:
To find the inverse, interchange the variables and solve for y.
f−1(x)=√x+2−8,−√x+2−8
A package of 4 pairs of insulated socks costs $22.36 . What is the unit price of the pairs of socks ?
Answer:
5.59
Step-by-step explanation:
22.36/4 = 5.59
hope this helps!
What is the slope of the line represented by 5x – 2y = 24?
Answer:
the slope is y=5/2x-12
Use the protractor to find the degree measure of the angle.
Make sure to write your answer with the degree sign.
Answer:
the angle is 136*
Step-by-step explanation: hope this heled pls mark braineist
All of the following devices are used in the second paragraph EXCEPT A. metaphor B. parallelism C. allusion D. abstract terms E. chiasmus
Answer:
a. Metaphor
Step-by-step explanation:
what -45 divided by 75
Answer:
-0.6
Step-by-step explanation:
The answer is negative because -45 was a negative number.
I didn't explain that very well :|
Hope I helped :)
Can I get Brainliest anyway, even though I did a terrible job explaining? .-.
How does light travel so you can see in the dark
Answer:
Step-by-step explanation:
Light travels as a wave. But unlike sound waves or water waves, it does not need any matter or material to carry its energy along. This means that light can travel through a vacuum—a completely airless space. ... It speeds through the vacuum of space at 186,400 miles (300,000 km) per second.
A rock is tossed vertically from a height of 2m with an initial velocity of 20 ms-1. The height of the rock, h, after t seconds can be modeled by the polynomial function :h(t)=−4.9t2+20t+2, t≥0. Calculate how many seconds, rounded to three significant figures, it takes for the rock to hit the ground.
Answer:
The rock takes 4.18 seconds to hit the ground
Step-by-step explanation:
Function Model
The height of a rock h, after t seconds, can be modeled by the polynomial function:
[tex]h(t)=-4.9t^2+20t+2, t\geq 0[/tex]
When the rock hits the ground, the height is 0, thus we need to find the value of t such as:
[tex]-4.9t^2+20t+2=0[/tex]
A quadratic equation can be expressed as:
[tex]at^2+bt+c=0[/tex]
where a,b, and c are constants.
Solving with the quadratic formula:
[tex]\displaystyle t=\frac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]
The values for the given equation are:
a=-4.9, b=20, c=2
Applying the formula:
[tex]\displaystyle t=\frac{-20\pm \sqrt{20^2-4(-4.9)(2)}}{2(-4.9)}[/tex]
[tex]\displaystyle t=\frac{-20\pm \sqrt{400+39.2}}{-9.8}[/tex]
[tex]\displaystyle t=\frac{-20\pm 20.957}{-9.8}[/tex]
There are two possible solutions:
[tex]\displaystyle t=\frac{-20- 20.957}{-9.8}=4.18[/tex]
[tex]\displaystyle t=\frac{-20+ 20.957}{-9.8}=-0.1[/tex]
Since t > 0, the only solution is t=4.19 seconds
The rock takes 4.18 seconds to hit the ground
Multi-step Equations
5) 5n + 34 = -2(1 - 7n)
Answer:
4
Step-by-step explanation:
if you do all the steps right you should get 4
ILL MARK YOU AS BRAINLIEST, PLEASE HELP!!!
Answer:
A
Step-by-step explanation:
A professional basketball player typically attempts 8 free throws per game. Let X represent the number of free throws made out of 8. The distribution for X is shown in the table.
A 2-column table with 9 rows. Column 1 is labeled number of free throws made with entries 0, 1, 2, 3, 4, 5, 6, 7, 8. Column 2 is labeled Probability with entries 0.002, 0.008, 0.04, 0.12, 0.23, 0.28, 0.21, 0.09, 0.02.
What is the standard deviation of the distribution?
Answer:
1.40
Step-by-step explanation:
took the test
Answer:
What is the expected value of the distribution?
4
4.5
x 4.8
5
Step-by-step explanation:
PLEASE HELP THESE ARE MULTI STEP EQUATIONS!!!!!!!!!
Answer:
1.-3
2.4
3.3
4. -4
5. -4
6.3
7. -19/9
8. -3
9.0
10. -2
Step-by-step explanation:
Answer ASAP for brainliest
Answer:
81
Step-by-step explanation:
uh indeed d ejd2njdenje
Answer:
-81
Step-by-step explanation:
I searched it up, should be right
Pls help me answer it thx
Answer:
20d+4
Step-by-step explanation:
Solve the equation
d-6=-20
Answer:
d = -14
Step-by-step explanation:
[tex]d-6=-20\\\\d-6+6=-20+6\\\\\boxed{d=-14}[/tex]
Hope this helps.
Answer:
d = –14
Step-by-step explanation:
Simplify the equation to find d:
d – 6 = –20
d = –20 + 6
d = –14
f(x) = -7x + 1, find f(0).
Answer:
Step-by-step explanation:
f(0)= -7(0)+1= 0 + 1 = 1
what is the inverse of function F f(x) 3-x/7
Answer: f^-1(x)=-7x+3 maybe ? i think
Step-by-step explanation:
Question 3
What condition is necessary for AE and BF to be equal? In this situation, what is the relationship between AB and CD? What can you conclude
about parallel lines with regard to the distance between them? Use the word perpendicular in your answer.
Answer:
In order for line AE to equal line BF, m/DFB and m/CEA must both be 90°. When this occurs, line AB does not intersect line EF: the two lines are parallel. line AE and line BF represent the perpendicular distances between line AB and line CD. When the two lines are parallel, the perpendicular distance between them is the same throughout their length.
Step-by-step explanation:
Plato Sample Question
When the two lines are parallel, then the perpendicular distance between them is the same throughout their length.
How are parallel straight lines related?Parallel lines have the same slope since the slope is like a measure of steepness and since parallel lines are of the same steepness, thus, are of the same slope.
Since the given parallel line has equation y = 2x + 2, thus its slope is 2 and thus, the slope of the needed line is 2 too.
In order for line AE to equal line BF, Angle DFB and Angle CEA must both be 90°.
When this occurs, line AB does not intersect line EF then the two lines are parallel.
Thus the line AE and line BF represent the perpendicular distances between line AB and line CD.
When the two lines are parallel, then the perpendicular distance between them is the same throughout their length.
Learn more about parallel lines here:
https://brainly.com/question/13857011
#SPJ5
1x
—— + 6 = -8 please help me I don’t understand do if you could explain I’d appreciate it.
7
Answer:
-14
Step-by-step explanation:
_____ + 6 = - 8
Let x + 6 = - 8
x = - 8 - 6
x = - 14
Thus, - 14 + 6 = - 8
Answer: -14
Step-by-step explanation:
We know all the numbers can be found in a different equation because three numbers are always in a fact family.
Remember: negative + positive = negative-8 + 6 = -14
The answer is -14.
help i need the answer ASAP
Answer:
you literly break down 10 to 6 then times the answer with 7
Step-by-step explanation:
answer:
i agree the answer is 7!
explanation:
hope this helped <3 also if wouldn't mind could you pls give me brainliest? (im trying to level up) thanks! :)
a line passes through the point (0, 5) and has a slope of -5/4 what is the equation of the line?
Answer:
y=-5/4x+5
Step-by-step explanation:
( 0 , 5 )
The 5 is the y point meaning.
y = -5/4 x + 5
*slope
y = -5/4 x + 5
*where it crosses the y-axis
Jimmy wants to buy socks that cost $20.
How much change does he receive if he
gives the cashier $100?
Answer:
80
Step-by-step explanation:
100-20=80
Answer:
He receives $80 in change.
Step-by-step explanation:
Simple Math.
Leisha is retiling a hallway in her house with linoleum squares. The area she is tiling measures 60 inches by 132 inches. Each square measures 8.0 inches by 8.0 inches. How many whole tiles should Leisha buy
Answer:
124
Step-by-step explanation:
Multiply 60 by 132. You get 7920.
Now multiply 8 by 8. You get 64.
Divide 7920 by 64. You get 123.75.
SInce the question asks for whole tiles we can't buy 0.75 of a tile, so she could just get one more to fill in that 0.75. That would be 124.
Please help, here's the screen shot
====================================================
Work Shown:
Everywhere you see an x, replace it with 5.
Then use PEMDAS to simplify.
y = 4*(x-2)*(x-3) + 7*(x-2)*(x-5) - 6*(x-3)*(x-5)
y = 4*(5-2)*(5-3) + 7*(5-2)*(5-5) - 6*(5-3)*(5-5)
y = 4*(3)*(2) + 7*(3)*(0) - 6*(2)*(0)
y = 24 + 0 - 0
y = 24
This means,
4*(x-2)*(x-3) + 7*(x-2)*(x-5) - 6*(x-3)*(x-5) = 24
when x = 5
Answer:
should be 74, if it isnt, im sorry.
slope = -1/6; (12, -2)
Do you need it graphed?
Help with questions 15. Please i need it ASAP ‼️‼️‼️‼️
Answer:
The first one and the thirds one. (I’m pretty sure)
Step-by-step explanation:
what if 8 crayons cost $11.50 what would one crayon cost lol.
Answer:
$1.44Step-by-step explanation:
Simply divide 11.5 by 8
8 goes into 11 1 time with 3 left over.
8 goes into 35 4 times with 3 left over.
8 goes into 30 3 times with 6 left over.
8 goes into 60 7 times with 4 left over.
8 goes into 40 5 times.
1.4375
Answer $1.44 a CrayonA school is planning a fundraiser with all profits going to charity. The amount of profit is found by subtracting the total cost from total ticket sales.
Ticket Sales: 200x−10x2
Event Cost: 500+20x
If x represents the price of a ticket, what ticket prices will result in a profit of $200 or more? Express your answers rounded to the nearest cent.
A
$5.69≤x
B
$5.69≤x≤$12.33
C
$3.29≤x
D
$3.29≤x≤$21.29
Please help.
The value of the x should be more than or equal to 5.69. Then the correct option is A.
What is inequality?Inequality is simply a type of equation that does not have an equal sign in it. Inequality is defined as a statement about the relative size as we will as is used to compare two statements.
A school is planning a fundraiser with all profits going to charity.
Ticket Sales: 200x − 10x²
Event Cost: 500 + 20x
The amount of profit is found by subtracting the total cost from total ticket sales. A profit of $200 or more.
Event cost − Total sales ≥ Profit
(500 + 20x) − (200x − 10x²) ≥ 200
− 200x + 10x² + 500 + 20x − 200 ≥ 0
10x² + 180x − 700 ≥ 0
10x² − 180x + 700 ≥ 0
x² − 18x + 70 ≥ 0
On simplifying, we have
(x − 5.69) (x − 12.33) ≥ 0
x ≥ 5.69, 12.33
Thus, the value of the x should be more than or equal to 5.69. Then the correct option is A.
More about the inequality link is given below.
https://brainly.com/question/19491153
A 3-yard roll of butcher paper costs $8.55. What is the price per foot?
Answer:
$2.85
Step-by-step explanation:
8.55/3
Answer:
$2.85 per foot
Step-by-step explanation:
all u gotta do is 8.55/3
Which number is IRRATIONAL?
A)
V
B)
V16
32
D)
164
the answer is c because it is a decimal
72 = -6r
Pls solve in steps forgot how to solve these lol
Answer:
72 = -6r
r= -72/6
r = -12
is the answer