A line has a slope of -2 and a y-intercept of –3. Graph the line using the slope and y-intercept.
Which of the following points lie on this same line? Check all that apply.
(–2, 0)
(–1.5, 0)
(–6, 9)
(2, –3)
(3, –9)
(–4, 4)
Answers
Answer & Step-by-step explanation:
First write the line equation.
y=mx+b is the format where m=slope, b= y intercept
y=-2x-3
plug each x in to see if they match the point
y= -2(-2) -3 = -4 - 3 = -7 ; the point is (-2,0) so NO
y= -2(-1.5) -3= 3-3 = 0; point is (-1.5, 0) so YES it matches
y= -2(-6) -3 = 12-3 = 0; point matches so YES
y= -2(2) -3 = -4-3 = -7; point is (2, -3) so NO
y = -2(3) -3 = -6-3= -9; point matches so YES
y= -2(-4)-3 = 8-3 = 5; point is (-4, 4) so NO
(-1.5, 0) & (-6, 9) & (3, -9)
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Answer:
the answers are B C E
Step-by-step explanation:
-1,5, 0
-6, 9
3, -9
Related Questions
A rectangle has a height of a^2+3 and a width of a^2 +2a+5
Express the area of the entire rectangle.
Your answer should be a polynomial in standard form.
Answers
Answer:
Area = a^4 + 10 a^2 + 6 a + 15
Step-by-step explanation:
Height: a^2+3
Width: a^2 +2a+5
Area of the entire rectangle = Height x Width
So we have to multiply both expressions and apply distributive property:
Area = (a^2 + 3) x (a^2 + 2a + 5)
Area = a^2 x (a^2 + 2a + 5) + 3 x (a^2 +2a + 5)
Area = a^4 + 2a^2 + 5a^2 + 3a^2 + 6a + 15
grouping terms of same power of a:
Area = a^4 + (2+5+3)a^2 + 6a + 15
Area = a^4 + 10 a^2 + 6 a + 15
Need help pleaseeee.
Answers
Answer:
m angle B=141
Step-by-step explanation:
a 7 sided shape has 900 total degrees
subtract all the known angkes to find your answer
900-90-148-142-130-129-120=141
hope this helps :)
Diego has two jobs. He works 3 hours at the library each day, making $8 per hour. In addition, he works at a coffee shop, making $7.50 per hour. At the coffee shop, he works more than 4 hours but less than 7 hours
each day Diego needs to make at least $70 daily to afford his living expenses.
Which of the following systems represents the constraints given in this scenario?
Let I represent the number of hours he works at the library
and c represent the number of hours he works at the coffee shop.
A: l = 3
4 < c < 7
8l + 7.50 ≥ 70
B: l = 3
4 ≤ c ≤ 7
8l + 7.50 ≥ 70
C: 1 = 3
4 ≤ c ≤ 7
7.50l + 8c ≤ 70
D: 1=3
4 < c < 7
7.50l + 8c ≥ 70
Answers
Answer:b
Step-by-step explanation:
Answer:B
Step-by-step explanation:
Antwan Campbell earns $494 per week. He is married and claims 1 child as a dependent. The state tax rate is 2.25% of taxable income. What amount is withheld from his weekly pay for state income tax?
Answers
Answer:
$12.35
Step-by-step explanation:
Amount earned by Campbell per week = $494
Tax rate = 2.25 %
Amount withheld = 2.25% of his earning;
Amount withheld = 2.25 % of 494
Amount withheld = 0.025 * 494
Amount withheld = $12.35
Hence the amount withheld from his weekly pay for state income tax is $12.35
if x2=18x+y and y2=18y+x, then find the value of root
Answers
Answer:
[tex]\sqrt{x^2+y^2+1}=18[/tex]
Step-by-step explanation:
We are given:
[tex]x^2=18x+y\qquad\qquad[1][/tex]
[tex]y^2=18y+x\qquad\qquad[2][/tex]
Subtracting [1] and [2]:
[tex]x^2-y^2=18x+y-(18y+x)[/tex]
Operating:
[tex]x^2-y^2=18x+y-18y-x[/tex]
Recall:
[tex]x^2-y^2=(x-y)(x+y)[/tex]
Substituting:
[tex](x-y)(x+y)=18x+y-18y-x[/tex]
Rearranging:
[tex](x-y)(x+y)=18x-18y-(x-y)[/tex]
[tex](x-y)(x+y)=18(x-y)-(x-y)[/tex]
Dividing by x-y (recall x≠y):
[tex]x+y=18-1=17[/tex]
[tex]x+y=17\qquad[3][/tex]
Now we add [1] and [2]:
[tex]x^2+y^2=18x+y+18y+x[/tex]
Rearranging:
[tex]x^2+y^2=18x+18y+x+y[/tex]
[tex]x^2+y^2=18(x+y)+(x+y)[/tex]
[tex]x^2+y^2=19(x+y)[/tex]
Substituting from [3]
[tex]x^2+y^2=19*17=323[/tex]
Adding 1:
[tex]x^2+y^2+1=324[/tex]
Taking the square root:
[tex]\sqrt{x^2+y^2+1}=\sqrt{324}=18[/tex]
Thus:
[tex]\mathbf{\sqrt{x^2+y^2+1}=18}[/tex]
What percent is represented by the shaded portion on this 10 × 10 grid? A grid model has 100 squares. 76 squares are shaded. StartFraction 7.5 Over 100 EndFraction percent StartFraction 75 Over 100 EndFraction percent 7.5% 75%
Answers
Answer:
either b or d
Step-by-step explanation:
Answer:
75%
Step-by-step explanation:
PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP
Emilia needs at least $240 to buy new headphones. She has already saved $30. She earns $14 per car that she washes.
What is the least number of cars she can wash to buy the headphones?
a. 14x+30 ≥ 240
B. 14x+30 ≤ 240
C.30x+14 ≥ 240
D. 30x+14 ≤ 240
Explain your reasoning and solve equation:
Answers
Answer:
A is the correct equation to use when solving this problem
The least number of cars she can wash is 15
Step-by-step explanation:
If "'x" is the number of cars Emilia washes, then we would need to multiply that by the amount of money she gets from each car which means that "14x" needs to be in the equation somewhere. From this, we can already rule out C and D because those don't have "14x".
Also, since it says that Emilia needs at least $240, that would mean that she needs $240 or higher. Since the sign in equation A shows that, we know that it is equation A.
Since Emilia needs $240 or higher, the least number of cars she could wash would need to give her enough money to get to $240 when added to the $30 Emilia already has. We can multiply 14 by 15 to give us 210 which when added to the $30 she already has, will give us $240 which is the minimum amount of money she needs to buy new headphones.
(I'm sorry this is so confusing. I'm not good with words but I hope this helped)
Cory made 4,500g of candy He saved 1 kg to eat later. He divided the rest of the candy over 7 bowls to serve at his party.
How many grams of candy did Cory serve in each bowl?
Answers
Answer:
In each bowl, Cory put 500 grams of candy.
Step-by-step explanation:
You would do 4,500 - 1 (since he save a kilogram for himself), which would equal 3,500.
Then, you would do 3,500 divided by 7 (since there are 7 bowls and he wants to split the remaining candy evenly), which would equal 500.
Answer:
Cory served 500 grams of candy in each bowl.
Step-by-step explanation:
4,500 = 4.50 kilograms
4.50kg - 1.00kg = 3.50kg
3.50kg ÷ 7kg = 0.50kg
0.50kg = 500g
are the lines y=x+4 and y=x-2 perpendicular
Answers
Answer:
no they are parallel because the slope is the same they just are at different y- intercepts
pls answer and ill give brainliest
Answers
Answer:
185
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
3885=21d
21d=3885
d=185
The cost of renting a jet ski for a certain number of hours can be modeled by
y=40x+50.
How much does it cost per hour?
Answers
You might need:
y
3+
2+
1+
2
-4 -3 -2 -1
1
2.
-1
-27
-3
Answers
Answer:
-36
Step-by-step explanation:
3+2+1+2=8-4-3=1-2=-1-1=-2x1x2=-4-1=-5-27=-33-3=-36
I need help on this....
Answers
its a
Step-by-step explanation:
Answer:
Option A
Step-by-step explanation:
A linear function's standard form is represented by the equation
[tex]y=mx+b[/tex]
where m is the slope and b is the y-intercept(where the line crosses the y-axis).
So if a function has a slope of 7/2 which is the value of m and crosses the y-axis at 9 which is the value of b then the equation would be
[tex]y=mx+b\\y=\frac{7}{2}x+9[/tex]
So option A is our answer
Nathaniel invests money in an account paying a simple interest of 6% per year. If he invests $90 and no money will be added or removed from the investment, how much will he have in one year, in dollars and cents?
Answers
Answer:
95.40 total and 5.40 in intreset
Step-by-step explanation:
Answer:
A = $95.40
I = A - P = $5.40
Equation:
A = P(1 + rt)
Calculation:
First, converting R percent to r a decimal
r = R/100 = 6%/100 = 0.06 per year.
Solving our equation:
A = 90(1 + (0.06 × 1)) = 95.4
A = $95.40
The total amount accrued, principal plus interest, from simple interest on a principal of $90.00 at a rate of 6% per year for 1 years is $95.40.
The parking lot charges 75 cents for each half hour or part of a half hour. If Edie parks her car in the lot from 10:45 am until 1:05 pm, how much money will she pay?
Answers
Answer:
she will pay $3.75
Step-by-step explanation:
report the following sentence He said to me,"He is a nice fellow." i said to him,"You look sad and tired." she said to me ,"You are a clever person."
she said to them ,"You can pass your exams if you work hard."
sabnam said,"I went to the hospital yesterday."
Arbind said,"I lost my keys in the train yesterday.,:
shilpa said,"I was extremely nervous last week."
Husaain said,"We went to bed early last night."
Rahul said ,"I didn't take a taxi home last night."
Answers
Answer:
He told me that he was a nice fellow
I told him that he looked sad and tired
She told me that I was a clever person
She told them that they could pass their exams if they worked hard
Sabnam said that she had gone to the hospital the previous day
Shilpa said that she had been extremely nervous the previous week
Husaain said that they had gone to bed early the previous night
Rahul said that he had not taken a taxi home the previous night
Kathy is a repair technician for a phone company. Each week, she receives a batch of phones that need repairs. The number of phones that she has left to fix at the end of each day can be estimated with the equation P=108−23d P = 108 − 23 d , where P is the number of phones left and d is the number of days she has worked that week. What is the meaning of the value 108 in this equation?
Answers
Answer:
What 108 represents here is that the total number of phones she has to fix each week is 108 phones
Step-by-step explanation:
The linear equation is
P = 108-23d
compare this with the general form;
y = mx + c
we have;
P = -23d + 108
We can see that 108 represents the y-intercept in this case
The x-value at the y-intercept is 0
So what this mean is that the number of phones she has to fix each week is 108
Which algebraic expression has like terms?
9n7 - 2n+3-4112
7 + 3n-3-672
7n+4n-3m-6n?
612 -4n4+6n-5772
Answers
Answer:
the answer is 612 -4n4+6n-5772
The expression that has like terms is (C) 7n+4n-3m-6n.
What is an expression?An expression can be as simple as a single number or variable, or it can be more complex, involving multiple operations and variables.
For example, the expression "3x + 4" contains the variable x, along with the constant values 3 and 4, and the operations of multiplication and addition.
Like terms are terms that have the same variables raised to the same powers.
In the first expression, 9n^7 and -2n have different powers of n, so they are not like terms. The constant term, -4112, is also not like any other term.
In the second expression, 3n and -3 are like terms, as they are both constants with no variables.
In the third expression, 7n, 4n, and -6n are all like terms because they all have the same variable, n, raised to the first power.
In the fourth expression, -4n^4 and 6n have different powers of n, so they are not like terms. The constant term, 612-5772=-5160, is also not like any other term.
Therefore, the expression that has like terms is (C) 7n+4n-3m-6n.
To know more about an expression follow
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step by step solution will give brainlist
Answers
Make both equal to each other
2x - 5 = 2x + 1
Add 5 to both sides
2x = 2x + 6
Subtract 2x to both sides
0 = 6, not possible
Answer: no solution
For a rectangle with length 3x+4 and perimeter of 10x+18, what is the width of the rectangle?
Answers
Answer:
For a rectangle with length 3x+4 and perimeter of 10x+18, what is the width of the rectangle
has a business selling perfume at the mall. Currently his business has a
balance of -$20.
Which amounts of sales would give Mason's business a positive balance?
Choose ALL that apply.
$29
$19
$21
$30
$35
$15
Answers
Hey guys so tommorow I have to sing infront of the class but I don't have any song ideas. Give me you best song suggestions!
Answers
Answer:
Lost Boy, One Call Away, Train wreck, Sad song?
Step-by-step explanation:
Those are just some songs I thought of their not the best but hope it helps some. And good job on singing hope you do well... YOU GOT THIS!! Have a nice day stranger!!
The reciprical of 312-938 is what number? If 23-3x=2 then x=y for 3
Answers
Answer:
-1/626 and for 23-3x=2 x=7
Step-by-step explanation:
Bernadette works at a Car Lot in Buffalo selling used cars. Each month Bernadette receives $2000 plus she receives a 5% commission for all of her sales. In April, Bernadette sold $84,000 worth of used cars. Calculate the total amount of money Bernadette earned in April.
he said SHOW ALL WORK, please help
Answers
Answer:
The total amount of money Bernadette earned in April was $6200
Step-by-step explanation:
Let us solve the question
∵ Each month Bernadette receives $2000
∵ She also receives a 5% commission for all of her sales
∴ She earns each month = 2000 + 5% of her sales
∵ In April, Bernadette sold $84,000 worth of used cars
→ Multiply it by 5% to find her commission
∴ Her commission = 5% × 84,000
→ Change 5% to decimal by divide it by 100
∵ 5% = 5 ÷ 100 = 0.05
∴ Her commission = 0.05 × 84,000
∴ Her commission = $4200
→ Add her commission to her fixed amount to find her salary in April
∵ She earned in April = 2000 + 4200
∴ She earned in April = 6200
∴ The total amount of money Bernadette earned in April was $6200
Answer: Bernadette works at a Car Lot in Buffalo selling used cars. Each month Bernadette receives $2000 plus she receives a 5% commission for all of her sales. In April, Bernadette sold $84,000 worth of used cars. Calculate the total amount of money Bernadette earned in April.
Step-by-step explanation:
$2000 + 5% + $84,000= 86000.05 or 86000
All you have to do is just Add - $2000 + 5% + $84,000=
And it gives you 86000.05 or 86000
Sorry if I got it wrong.
7X-2=19
7x=19+2
7x=21
X=3
How do I verify this answer?
Answers
Answer:
to verify this answer you need to substitute the answer you got for x
Step-by-step explanation:
7(3)-2=19
21-2=19
19=19
this means that you are correct
A student measures the wingspans of 40 local dragonfly specimens selected at random. The sample mean is 6.8 centimeters with a margin of error of 0.9 centimeters. Based on this information, what are plausible values for the mean wingspans of the population of local dragonflies?
Explain or show your reasoning.
Answers
Answer:
6.8 - 0.9 = 5.9
Step-by-step explanation:
5.9 is the only average that seemed reasonable. Hope I helped.
According to the margin of error, it is found that plausible values for the mean wingspans of the population of local dragonflies are between 5.9 and 7.7 cm.
What is the margin of error of a measure?It is about how much the measure can plausibly differ from the sample mean.
In this problem, considering the sample mean of 6.8 cm and the margin of error of 0.9 cm, the bounds of plausible values are given by:
6.8 cm - 0.9 cm = 5.9 cm.6.8 cm + 0.9 cm = 7.7 cm.More can be learned about margin of error at https://brainly.com/question/25779324
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Which graph shows only a reflection?
Answers
Answer:
D BOTTOM RIGHT
Step-by-step explanation:
HELP HAVING A BAD DAY
Brandon decided to make his own hand sanitizer.
To be effective, hand sanitizer should contain 60% alcohol.
How much pure alcohol does Brandon need to make
a)150ml of hand sanitizer?
b)250ml of hand sanitizer?
I WILL AWARD BRAINLIEST FOR THE CORRECT ANSWER
Answers
Answer:
A - 90ml
B - 150ml
Step-by-step explanation:
A - 150ml ÷ 100 = 1.5 x 60 = 90ml
B - 250ml ÷ 100 = 2.5 x 60 = 150ml
Brandon needs 90 ml and 150 ml of alcohol to make 150 ml and 250 ml hand sanitizer.
What is a percentage?A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.
Given:
Brandon decided to make his own hand sanitizer.
To be effective, hand sanitizer should contain 60% alcohol.
a) 150ml of hand sanitizer;
Use percentage formula,
Percentage of alcohol = 150 x 60 / 100
Percentage of alcohol = 90 ml
a) 250ml of hand sanitizer;
Use percentage formula,
Percentage of alcohol = 250 x 60 / 100
Percentage of alcohol = 150 ml
Therefore, he needs 90 ml and 150 ml of alcohol to make 150 ml and 250 ml hand sanitizer.
To learn more about the percentage;
https://brainly.com/question/24159063
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procedure you are to give the scientific explanation to clarify the belief of the people in your locality and phenomena
1.red sky in the afternoon sunset
2. rainbows only appear after the rain
3. there's a pot of gold at the end of the rainbow
Answers
1.) As the sun light travels along path through as atmosphere to reach our eyes, the blue light has been mostly remove living mostly red and yellow light remain since red light waves are scattered the list by atmospheric gas molecules
2.) Rainbows are formed when it’s misty or spray the sky with water. It’s not solely just from after a rain; you only need water that can act at as prism and light to shine to create a rainbow.
3.) Having gold at the end of rainbow is just a myth since you can never reach the end of the rainbow. A rainbow is caused by dispersion of light in water droplet which is why they occur when sun comes out after rain.
can someone help me with this please
Answers
Answer:
x<-4
Step-by-step explanation:
First you have to add 4 by both sides, which will give you 8x<-32.
Then just divide both sides by 8 and you should get the same answer.