Answer:
C. No, it is not a proportional relationship because the graph is not a straight line
Step-by-step explanation:
Which discovery by astronomer Vera Rubin helped prove the existence of dark matter?
HELP MEEEH :c
Galaxies exist outside of the Milky Way.
The expansion of the universe is accelerating.
Galaxies spin faster than they should, based on their visible matter.
Gas giants form farther from the Sun, where temperatures are cooler.
Answer:
Galaxies spin faster than they should based on their visible matter
Step-by-step explanation:
Hope this helps :)
Answer: Galaxies spin faster than they should based on their visible matter
Step-by-step explanation:Took the test got an A
Complete the table. (if u dont know how to do it then pls answer another question)
Answer:
The original price is 112.5
Step-by-step explanation:
80% of 112.5 is 90
brainliest plzz
Consider the function f(x) = 2x^2 - 4x + 9. Evaluate 2f(3) + 3f(-3).
Answer: 147
Step-by-step explanation:
To evaluate 2f(3)+3f(-3), we first need to find the values of f(3) and f(-3). Given f(x), we just plug in x=3, -3 into f(x).
f(3)=2(3)²-4(3)+9 [exponent]
f(3)=2(9)-4(3)+9 [parenthesis]
f(3)=18-12+9 [subtract]
f(3)=6+9 [add]
f(3)=15
Now, we find f(-3).
f(-3)=2(-3)²-4(-3)+9 [exponent]
f(-3)=2(9)-4(-3)+9 [parenthesis]
f(-3)=18+12+9 [add]
f(-3)=30+9 [add]
f(-3)=39
With the values of f(3) and f(-3), we can evaluate the expression.
2(15)+3(39) [multiply]
30+117 [add]
147
Now, we know the value is 147.
A rental hall has 60 tables.
55% of the tables have 10 chairs at each table.
The remaining 45% of the tables have 8 chairs at each table.
Complete the model.
Then complete the statements to find the total number of chairs in the rental hall.
Answer:
Plz name me brainlieset thank you
Step-by-step explanation:
55% of the tables would be 33 tables times 10 chairs equals 330 Chairs That mean 60 Tables -33 tables Leaves you with 27 tables Times 8 Chairs Equals 216 Chairs So 330 and 216Equals 546 chairs
Answer:
55% 10 chairs:33
45% 8 chairs:27
330
216
546
Step-by-step explanation:
i just got it right
ill give brainliest and 25 points to whoever makes me laugh
Answer:
Sorry mam Bin laden is not in the mood of joke today hope jeff bezus would do that for you
Answer:
Today at the bank, an old lady asked me to help check her balance. So I pushed her over.
Step-by-step explanation:
Assuming x, y, and z are positive real numbers satisfying:
xy - z = 15,
xz - y = 0,
and yz - x = 0,
then, what is the value of xyz?
Answer:
16
Step-by-step explanation:
X= 4
Y = 4
Z = 1
It all makes sense, you can try it yourslef
I’ve asked 3 times and no one knows pls helpahh
Explanation:
The two angles shown combine to 180 degrees because the angles form a straight line.
(3x+18)+(4x+15) = 180
7x+33 = 180
7x = 180-33
7x = 147
x = 147/7
x = 21
Sally spelled 2 words incorrectly out of 20 spelling words on the test. What percent grade did Sally get on the test?
Answer:
90%
Step-by-step explanation:
So Sally gets 18/20 of the questions correct then you need to make the denominator of the fraction to 100 which makes a percent. So you multiply both the numerator and denominator by 5:
90/100
which is equal to 90%
Hope this helps!
Answer: 90%
Step-by-step explanation:
Explain how you might go from gallons to cups using more than one conversion factor.
Answer:
use it as so-
4 cups/1 x 1 pint/2 cups= 2 pints
2 pints/1 x 1 quart/2 pints = 1 quart
1 quart/1 x 1 gallon/4 quarts= 1/4 gallons
therfore, 4 cups is equal to 1/4 gallons. hope this helps!
In order to convert gallons to cups using more than one conversion factor, first convert gallons to quarts and then convert quarts to cups.
How to convert gallons to cups?
The first step is to convert gallons to quarts:
1 gallon = 4 quarts
The convert quarts to cups:
1 quart = 4 cups
To learn how to convert units, please check: https://brainly.com/question/25993533
#SPJ2
The price of one share of a company declined $1.50 per day for 4 days in a row. What is the overall change in the price of one share?
Answer:
Overall, the price of the share declined by $6.
Step-by-step explanation:
1.5*4=6
please solve both will give all points and brainiest
5
Step-by-step explanation:
Which inequality best represents that ice cream at −5°C is cooler than ice cream at 4°C?
(3.05 Practice Test)
Answer:
4°C > -5°C
hope this helps!
and dont forget 2
MARK ME BRAINLIEST!
Step-by-step explanation:
Answer:
−5°C < 4°C?
Step-by-step explanation:
A laptop has a listed price of $759.95 before tax. If the sales tax rate is 7.25%, find the total cost of the laptop with sales tax included.
Round your answer to the nearest cent, as necessary.
Answer:
$815.05
Step-by-step explanation:
7.25% x $759.95 = 55.10
7.25% = 55.10
$759.95 + $55.10 = £815.05
i did not round it, this is the answer on the calculator so not sure how to round it sorry
Reason about the correct unit of measure.
Explain your reasoning, using complete sentences.
Answer:
they each
Step-by-step explanation:
A baker makes 24 cookies in 4 hours. At this rate,
how many cookies can the baker make in 10
hours?
help this is IMPORTANT!!!!
Answer:
The baker will make 60 cookies in 10 hours.
Which equation is linear?
A) [tex]y=4/x-2[/tex]
B) [tex]y=x-3/4[/tex]
C) [tex]y=2x^2-10[/tex]
D) [tex]y=2x(x-4)[/tex]
Answer:
B
Step-by-step explanation:
the way that i was taught was that if you want to find out if a equation is linear is if you it cant have an exponential in it equation and it cant be a fraction and cant have a parenthesis(for the beginning it cant be a fraction or have a exponent.
Harry was given an assignment. He had 42 days to get 336 tasks done at work.
Which operation would he use to figure out how many tasks he needs to complete each day?
Which equation is non-linear?
A) [tex]y=3x^3-10[/tex]
B) [tex]y=1/2x+4[/tex]
C) [tex]y=4x-5/3[/tex]
D) [tex]-3x--7y=-21[/tex]
Answer:
[tex]\huge\boxed{\text{A is not linear.}}[/tex]
Step-by-step explanation:
Linear equations are equations that, when graphed, form a "line" and have a constant rate of change.
Usually, these are in the form [tex]y=mx+b[/tex] when put in that order.
There are a few types of equations, I'll list some of the major ones
Linear = has a constant rate of changeExponential = increases for x as the exponent Quadratic = is in a binomial, trinomial, or polynomial - it has a vertex
Linear functions are usually in the form [tex]y=mx+b[/tex]
Exponential functions are usually in the form [tex]y=b^x[/tex]
Quadratic functions are usually in the form [tex]ax^2 + bx + c[/tex]
We must note that linear functions can not
A) Have an exponent on any x term
B) Have x and y multiplied by each other
We can see that every equation, except A
A) Follows the form [tex]y=mx+b[/tex] ([tex]-3x--7y=-21[/tex] can be simplified to [tex]y= \frac{3}{7}x-3[/tex])
B) Does not have any exponents on their x terms
That leaves A) to be the equation that isn't linear.
Hope this helped!
Answer:
Equation A is non-linear.
Step-by-step explanation:
We are given four equations in which we need to determine if they are linear or non-linear relationships.
Firstly, we need to know some information about linear equations:
Linear equations cannot have an exponent.Linear equations have a constant slope and are straight lines.Linear equations can be negative or positive.Linear equations have a domain of all real numbers. They also have a range of all real numbers.Now, in order to check this easily, we need to place these equations into slope-intercept form.
Equation A
[tex]\displaystyle y = 3x^3 - 10[/tex]
We see that this has an exponent, so this cannot be a linear equation.
In fact, because it is cubed, this is called a cubic function. Therefore, equation A is not a linear equation.
Equation B
[tex]\displaystyle y = \frac{1}{2}x + 4[/tex]
This equation does not have a exponent. It also has a slope and a y-intercept. Therefore, equation B is a linear equation.
Equation C
[tex]\displaystyle y = 4x -\frac{5}{3}[/tex]
The equation does not have a exponent. It also has a slope and a y-intercept. Therefore, equation C is a linear equation.
Equation D
[tex]-3x--7y = -21[/tex]
First off, we need to get this equation into slope-intercept form, if possible.
[tex]\displaystyle -3x -- 7y = -21\\\\-3x + 7y = -21 \ \ \ \text{Change the sign on 7y.}\\\\7y = 3x - 21 \ \ \ \text{Move 3x to the other side by adding.}\\\\\frac{7y}{7}=\frac{3x-21}{7} \ \ \ \text{Divide both sides by 7 to isolate y.}\\\\\bold{y = \frac{3}{7}x-3}[/tex]
Our final equation is [tex]\displaystyle y = \frac{3}{7}x-3[/tex].
The equation does not have an exponent. It has a constant slope and a y-intercept. Therefore, equation D is a linear equation.
Let's check our equations:
Equation A: [tex]\displaystyle y = 3x^3 - 10 \ \text{X}[/tex]Equation B: [tex]\displaystyle y = \frac{1}{2}x + 4 \ \checkmark[/tex]Equation C: [tex]\displaystyle y = 4x -\frac{5}{3} \ \checkmark[/tex]Equation D: [tex]\displaystyle y = \frac{3}{7}x-3 \ \checkmark[/tex]Therefore, we have determined that Equation A is not a linear equation, making it non-linear.
Use point-slope form, y - y1 = m(x - x1), to find the linear equation of a line that passes through the points (2, -1) and (10, 7).
Answer:
y = ✔ 1 x + ✔ -3
Step-by-step explanation:
edge 2020!
write a word problem with 3-4 full sentences that can be represented by the expression 14 1/8 divided by 3.
Answer:
Step-by-step explanation:
Mary and her two friends are going out to eat. Mary orders 14 1/8 pints of ice cream ice cream cones. how much ice cream will each friend including mary get if they all get equal amounts.
Find the quotient:
7/8 ÷ 3/8
Answer:
2 and 5/8
Step-by-step explanation:
Find a linear inequality that contains the points (1,0) and (-5, -2)
Answer:
-5
Step-by-step explanation:
Answer:
-5
Step-by-step explanation:
Answer each question with an explanation, First person to get this right gets brainliest
Answer:
2 is slope
Step-by-step explanation:
d = √(Δy2 + Δx2) = √(82 + 42) = √80 = 8.94427
Distance between x's (Δx) is 4
-2 is y-intercept
m = 8 / 4 = 2 / 1 = 2
The least common multiple of two numbers is 84, and one of the numbers is 5 less than the other number. What are the numbers? Complete the explanation.
The two numbers are __ and __.84 is a multiple of each of its factors. The factors with a difference of 5 are__ and __ their LCM is 84.
Answer:
factor 1 = x
factor 2 = x - 5
(factor 1) * (factor 2) = 84
(x) * (x - 5) = 84
x² - 5x = 84
x² - 5x - 84 = 0
(x - 12) (x + 7) = 0
x - 12 = 0 or x + 7 = 0
x = 12 or x = -7
factor 2 = x - 5 = (12) - 5 = 7 or (-7) - 5 = -12
Answer: 12, 7 or -7, -12
Answer:
Below.
Step-by-step explanation:
84 = 7 * 12.
The 2 numbers are 7 and 12.
12 and 7 have a difference of 5.
Identify which estimate seems the most reasonable for 5% tax on a $62.00 purchase. Explain.
under $3.00
exactly $3.00
over $3.00
Choose the correct answer below.
A.
The most reasonable estimate is over $3.00. Since 5% of $60.00 is $4.00, 5% of $62.00 would be greater than $3.00.
B.
The most reasonable estimate is over $3.00. Since 5% of $60.00 is $3.00, 5% of $62.00 would be greater than $3.00.
C.
The most reasonable estimate is under $3.00. Since 5% of $60.00 is $3.00, 5% of $62.00 would be less than $3.00.
D.
The most reasonable estimate is exactly $3.00 since 5% of $62.00 is $3.00.
Answer:
the answer is b , thanks
5 + 5Consider triangle ABC. Triangle A B C. Angle C is 80 degrees and angles B and A are y degrees. What is the value of y in the triangle? Angle y = °
Answer:
y=50°
Step-by-step explanation:
if all triangles add up to 180° you would subtract the angle you already know(80) from 180 which would be 100°
since there are 2 corners we dont know you would divide by 2 which would be 50°
HELPPPP look at image
Answer:
She is wrong because each our, she earns 8$. 3 hours would give her $24 and another half-hour would give her 4 more dollars which would bring her to $28
Step-by-step explanation:
ok i got your mcdonalds 2 - 4x = 14
Answer:
x= gimme mcdonalds
Step-by-step explanation:
Answer:
x=3
Step-by-step explanation:
2-4x=12
-2. -2
-4x=12
divide by negative four x=3
if a = and b = -1 what is the value of ab -b^2
Answer:
-2
Step-by-step explanation:
To solve you need to replace the variables with their numbers.
3(-1) - (-1^2)
-1 x -1 = -1
3 x (-1) = -3
-3 - (-1) =
-2
I dont get this pls help
Answer:
First and second are functions, third isn't
Step-by-step explanation:
PLS GIVE BRAINLIEST
Answer:
1 and 2 are vertical
Third one is NOT