Answer:
Step-by-step explanation:
let the amount spent on popcorn be x and amount spent on drinks be y
If the total bill paid is $17.94, then x+y = $17.94
If she spend twice as much on popcorn as on drinks, then y = 2x
Substitute y = 2x into the original equation
x+y = $17.94
x + 2x = $17.94
3x = $17.94
x = $17.94/3
x = $5.98
Since y = 2x
y = 2($5.98)
y = $11.96
Therefore she spent $5.98 on popcorn and $11.96 on drinks
I'm having trouble finding the x-intercepts AND the y-intercept, could some help and explain there work?? :)))) thank you!!
f(x)= x^3 - 4x^2 - 11x + 30
Hello,
[tex]f(x)=x^3-4x^2-11x+30 \\\\f(0)=30[/tex]
so y-intercept is (0,30)
The product of the roots are -30 = 2 * 5 * -3, and the sum is 4 = 2 + 5 - 3 , so we can factorise
[tex]f(x)=x^3-4x^2-11x+30 \\\\f(x)=0 \\\\<=> x^3-4x^2-11x+30=(x+3)(x-2)(x-5)=0\\\\<=> x=-3 \ or \ x=2 \ or \ x=5[/tex]
x-intercepts are (-3,0) (2,0) and (5,0)
thanks
22 - 3 × 6 + 5^2
A.
38
B.
139
C.
29
D.
65
Answer:
C. 29
Step-by-step explanation:
22 - 3 × 6 + 2522 - 18 + 254 + 2529Two angles are supplementary if their sum is 180 degrees
Answer:
maybe 80 degrees and 100? might be wrong dont count on me fully
Step-by-step explanation:
someone help please answer asap
Answer:
[tex]g(x) = 5x^2[/tex]
Step-by-step explanation:
In the equation x^2, when x = 1, y = 1. But in g(x), when x is 1, y is 5. Since g(x) is a scaled version of x^2, we can conclude that g(x) is 5 times x^2.
Therefore, [tex]g(x) = 5x^2[/tex].
I hope this helped you.
. . .Step-by-step explanation:
if f(x)=1/x and g(x) = X+4, which of the following is the graph of (gºf)(x)?
Answer:
See attached graph
Step-by-step explanation:
[tex]f(x)=\frac{1}{x}\\ \\g(x)=x+4\\\\(g\circ f)(x)=g(f(x))=g(\frac{1}{x})=\frac{1}{x}+4[/tex]
I cannot see all of the options, so I attached a graph of the correct graph for you to match up your options with.
a square room has a floor area of "100" square feet. the height of the room is 6 feet what is the area of one wall
Answer:
Its 60
Step-by-step explanation: 10x10=100 so 10x6=60
Did that help you???
The area of one wall of the square room is 60 sq. feet.
What is the area of a square?The area of a square is the square of its side.
If the length of a side of a square is a unit, then its area is
Area = a² sq. units.
How to solve the question?In the question, we are informed that a square room has a floor area of 100 sq. feet, and its height is 6 feet.
We are asked to find the area of one wall.
The floor of the room is given a square. We let the length of the side of that square be 'a' units.
Then, its area is a² sq. units.
We are given that the area of the floor is 100 sq. feet.
So, we can write the equation as:
a² = 100 sq. feet,
or, a = 10 feet.
The height of the room is given as 6 feet.
Therefore, the area of a wall is 10*6 sq. feet = 60 sq. feet.
As the floor is rectangular in shape, with dimensions 10 and 6.
Therefore, the area of one wall of the square room is 60 sq. feet.
Learn more about the area of a square at
https://brainly.com/question/26418430
#SPJ2
The probability that an event will occur is 9/10. Which of these best describes the likelihood of the event occurring?
Answer:
Likely
Step-by-step explanation:
The odds are in favor of it, but it hasn't been proven.
(PLEASE HELP!!!)Which shows the list of numbers in order from least to greatest?
Answer:
B
Step-by-step explanation:
hope this helps
Answer:
A
Step-by-step explanation:
-2 is the least because the two lines means the number inside will be positive.
this means that -4/5 will be 4/5. Then 1. Then 3.5. Finally, 4.2
Hope this helps you
Greg wants to estimate the percentage of people who lease a car. He surveys 340 individuals and finds out that 90lease a car
Answer:
26.47%
Step-by-step explanation:
Total individual =340
Individual who lease car=90
Now,
90 out of 340 people lease car.
Fraction of people leasing car=90/340 =9/34
Percent of people leasing car=fraction *100%
=9/34 *100%
=26.47%
Choose the equation for the graph
below.
x+1
a.y =
X-2
2x-3
b.y =
X-4
3-X
c. y =
xt?
x+2
X
d.y=
2x+4
X-1
e.y=
x+4
Pls help ill give brainliest!!!
A- What do you notice? Why is this true?
B- What is slope? Write a conclusion about the ratio and slope.
C- Write an equation for the line that represents wages earned (y = mx + b):
D- According to the equation, how much could a person earn who works 40 hours?
E- What if the person got a $50 bonus and also worked some hours? How would this change the graph?
The linear equation is given by y = 15x. A person earns $600 for working 40 hours
What is a linear equation?A linear equation is in the form:
y = mx + b
Where y, x are variables, m is the rate of change and b is the y intercept.
The line passes through (7, 105) and (8, 120), hence:
y - 105 = [(120 - 105)/(8-7)}(x - 7)
y = 15x
For 40 hours:
y = 15(40) = $600
if the person got a $50 bonus and also worked some hours, it would change the graph
Find out more on linear equation at: https://brainly.com/question/14323743
A wave has a frequency of 50Hz and a wavelength of 10m. What is the speed of the wave? Given:
Unknown:
Formula:
Solution:
Final answer:
Answer:
formula 8.334
Step-by-step explanation: formula 8.334 so
Aaron and his mother planted 27 trees on Wednesday.
The ratio of oak trees they planted to the total number of
trees they planted was 2:9. How many oak trees did Aaron
and his mother plant on Wednesday?
A)5
B)13
C) 6
D) 21
Answer:
A. 5Step-by-step explanation:
let us use the part to whole approach
given the ratio= 2:9
the total ratio= 2+9=11
the total trees planted=27
using the part to whole, the oak trees planted is given as
let the number of oak trees be x
2/11=x/27
cross multiply we have
11x=27x2
11x=54
x=54/11
x= 4.90
approximately 5 tree
Answer: A 5
Step-by-step explanation:
Solve for h.
A=3h
Can anyone help me?
Answer:
h = 3/A
Step-by-step explanation:
A = 3h
Divide both sides by 3 to isolate h:
A/3 = 3h/3
Simplify and get
A/3 = h or h = A/3
Hope this helps!
1) To make plaster, Kevin mixes 3 cups of water with 4 pounds of plaster powder. Complete the table.
How much water will Kevin mix with 20 pounds of powder?
can somebody please teach me how to do compound inequalities?
i don't need a certain equation to be done, i just need to know how to do it. :)
pls help!...
Answer:?
Step-by-step explanation:
Answer:
Desmos Practice Worksheetdyh.astromirasole.it › desmos-practice-worksheet
Multiplying and Dividing Polynomials Worksheet Answer Key Poly Want a ... Desmos is a graphing calculator that can be accessed through any web ... Activity: Compound Inequalities on the Number Line
What is the mode of the following distribution: 8, 6, 5, 4, 1, 5, 3?
Answer:
5
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
5 repeats twice
How many 7 digits numbers are there?
Answer:
9000000 seven
There are 9000000 seven-digit numbers.
Step-by-step explanation:
please mark me brainliest
Answer:
9000000 seven
Step-by-step explanation:
There are 9000000 seven-digit numbers.
Answer provided by Education Point
Find the next two terms in this sequence. -900, 300,-100,_,_? Please I need help
Answer: 500
Step-by-step explanation: it increases and decrease in a pattern so -900+600= 300-600= -100+600=500
To make the expression 4x−2+□(2x+4) equivalent to 2(6x+7), what must be the value in the box?
Answer: 4 goes into the box!!
Step-by-step explanation:
Answer:
yo add AlexGot_u on ps4
Step-by-step explanation:
what is the sum of 2.5 × 10^4 × 10^4
Answer:
2.5 ⋅10^8
Step-by-step explanation:
IT cost $11 for 15 granola bars.
What is the unit price , un dollars per granila bar , rouned to the nearest hundredth.?
Answer:
$1.36
Step-by-step explanation:
Answer: yee yee nation
Step-by-step explanation:
two years ago the cats tim and tom were toghether 15 years old.Now tom is 13 years old.In how many years will tim be 9 years old?
Answer:
3 years
Step-by-step explanation:
As with many age problems, you can reason it without equations. If Tom is 13 now, 2 years ago he was 11. If the total age of the two cats at that time was 15, then Tim was 15 -11 = 4.
That means Tim is now 4+2 = 6, so will be 9 in 3 years.
_____
Additional comment
If you want to write equations, there are several ways you can do it. We often like to use variables to represent the current age. We can assign ...
x = Tim's current age; y = Tom's current age.
The sum of their ages 2 years ago was ...
(x -2) +(y -2) = 15
Tom's current age is 13, so we have y=13. Using that in the equation gives ...
x -2 +13 -2 = 15
x = 6 . . . . . . . . . . subtract 9, collect terms
That's Tim's current age, so Tim will be 9 years old in 3 years.
Avoiding an accident when driving can depend on reaction time. That time, measured in seconds from the moment the driver see danger until they step on the brake pedal, can be described by the Normal model with a mean of 1.5 seconds and a standard deviation of 0.18 seconds.
Note that this scenario is talking about a population distribution. There is no discussion of a sample or sample size. Therefore, you do not need to adjust the standard deviation that is given before using the normalcdf and invNorm commands.
a) What percent of drivers have a reaction time greater than 1.8 seconds?
Give the command and values you used as a way of showing your work:
Give your final answer rounded to 2 decimal places:
b) Describe the reaction time of the slowest 10% of all drivers? (Hint: The slower a person reacts, the higher their reaction time so this is looking at the right tail of the distribution)
Give the command and values you used as a way of showing your work:
Give your final answer rounded to 2 decimal places:
Using the normal distribution, it is found that:
a) 4.75% of drivers have a reaction time greater than 1.8 seconds.
b) The reaction time is of at least 1.73 seconds.
Normal Probability DistributionIn a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
It measures how many standard deviations the measure is from the mean. After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.In this problem, the mean and the standard deviation are given by, respectively:
[tex]\mu = 1.5, \sigma = 0.18[/tex]
Item a:
The proportion is one subtracted by the p-value of Z when X = 1.8, hence:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{1.8 - 1.5}{0.18}[/tex]
[tex]Z = 1.67[/tex]
[tex]Z = 1.67[/tex] has a p-value of 0.9525.
1 - 0.9525 = 0.0475 = 4.75%.
4.75% of drivers have a reaction time greater than 1.8 seconds.
Item b:
The reaction time is of at least X seconds, in which X is the 90th percentile, that is, X when Z = 1.28, hence:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]1.28 = \frac{X - 1.5}{0.18}[/tex]
[tex]X - 1.5 = 1.28(0.18)[/tex]
[tex]X = 1.73[/tex]
The reaction time is of at least 1.73 seconds.
More can be learned about the normal distribution at https://brainly.com/question/24663213
How do u work out
65% of 8700
First off, you have to make 65 % into an actual number, which is 0.65 (every time you want to convert percentages into numbers, you have to divide that by 100)
Now
0.65 * 8700 = 5655
Answer: 5655
HELP ME ILL GIVE YOU BRAINLY IF U GET IT RIGHT AND EXPLAIN HOW PLEASE
Answer:
59
Step-by-step explanation:
A is a 90 degree angle, we can see the other side is 31
so we subtract 90-31=59
Can anyone help me here this is a mastery test by the way. Too tired to type it out so I put a photo.
^
|
Answer:
1st Question is 22r4
2nd Question is 22r16
3rd Question is 11r11
4th Question is 11r30
Step-by-step explanation:
Hope this helps. I'll give you my energy.
Can anyone solve 8,9 and 10 please
Answer:
8=90,000,000,000
9=250,000,000,000
10=360,000,000,000
PLEASE HELP!!! ILL GIVE BRANLIEST *EXTRA POINTS* dont skip :((
PLEASE HELP! FIND THE AREA
Answer:
All you need to do is split the shape so that you can find the individual area
Step-by-step explanation:
So we first split the shape so we get a triangle...
A=1/2bhB=2H=4A=1/2*2*4A=4Now we split the shape again to get another square...
A=lwA=2*4A=8Then we find the area of the other square...
A=lwA=2*5A=10Our last step is to add all the areas together
we let TA represent Total areaTA=4+8+10TA=22Hence the area is 22