correct answer is d x=4 y=2
Answer:
d (4,2)
Step-by-step explanation:
Your friend estimated that it would take 5 hours to finish an art project. It actually took him 16 hours to finish the project. The amount of time it took to finish the project was % of the estimated time Use pencil and paper. What does it mean to have more than 100% of something? Give at least two examples The amount of time it took to finish the project was % of the estimated time (Type an integer or a decimal.)
Answer:
320%
To have over 100% of something means that you have more than the original number you had.
Step-by-step explanation:
Step-by-step explanation:
To find what percent a first number is of second number, divide the first number by the second number and multiply by 100%.
To find what percent 16 is of 5, divide 16 by 5 and multiply by 100%.
16/5 * 100% = 3.2 * 100% = 320%
"Percent" literally means "per 100."
100% means 100 out of 100, and means an entire amount.
More than 100% percent means more than the entire amount.
5 hours was the estimated time. 100% of 5 hours is 5 hours, the entire amount. More than 100% is more than the entire amount, so it is more than 5 hours. 16 hours is certainly much more than 5 hours, and it is 320% of 5 hours.
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1. Determine f -1 (x) for each of the given functions
f (x) =2x-3
2. Determine f -1 (x) for each of the given functions
f (x) = x over x+2
Step-by-step explanation:
1) f(x) =2x -3
y=2x - 3
x= 2y -3
2y =x + 3
y = x+3 over 2
f(x)^-1 = x+3 over 2
2) f(x) = x /x+2
y= x / x+2
y / y+2 = x
y = (y+2)x
y= xy +2x
y -xy = 2x
y( -x +1) = 2x
y= 2x over -x + 1
f(x)^1 = 2x over -x + 1
Please help I need this answer. Answer ALL 3 questions to get free brainliest.
Tyler’s brother works in a shoe store.
A: Tyler’s brother earns a commission. He makes 2.5% of the amount he sells. Last week, he sold $900 worth of shoes. How much was his commission?
B: The store bought a pair of shoes for $50, and sold it for $80. What percentage was the markup?
C: Tyler’s brother earns $12 per hour. The store offers him a raise—a 5% increase per hour. After the raise, how much will Tyler’s brother make per hour?
Answer:
a. $22.50
b. 60%
c. $12.60/hr
Step-by-step explanation:
a. $900*0.025 = $22.50
b. $80-$50 = $30
$30/$50 = .60
.60*100% = 60%
c. $12*1.05 = $12.60
Answer:
1. $22.50
2. 60%
3. $12.60
Step-by-step explanation:
This time I put all three answers check for yourself
k/2 + 9 = 37
too lazy to do this work. lol
Answer:
K = 56
Step-by-step explanation:
Subtract 9
k/2 = 28
multiply by 2
k = 56
OA.
The slope is negative.
OB.
The slope is positive.
Oc.
The slope is zero.
D.
The slope is undefined.
The true statement about the slope is the slope is positive.
What is Slope?A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the
change in y coordinate with respect to the change in x coordinate as,
m = Δy/Δx where, m is the slope
To find the slope take two points from the graph as (0, 4) and (5, 6)
So, Slope of line
= (6-4) / (5-0)
= 2 /5
= 0.4
Thus, the slope of line is positive.
Learn more about slope here:
https://brainly.com/question/17310554
#SPJ7
HELPP QUICKKK its timedd
Answer:
10
Step-by-step explanation:
the measure of the angle is..
Answer:
149
Step-by-step explanation:
149 and the angle beside b are supplementary (Let's call it A)
180-149=A=31
180-31=149
149=B
100 POINT GIVEAWAY!!!! HAVE AN AMAZING DAY!!!!!
Answer:
yay
Step-by-step explanation:
Answer:
Thx
Step-by-step explanation:
Which ordered pairs make both inequalities true? Select two options.
y One-halfx + 1
On a coordinate plane, 2 straight lines are shown. The first solid line has a positive slope and goes through (negative 2, 0) and (0, 1). Everything above the line is shaded. The second dashed line has a positive slope and goes through (negative 1, negative 3) and (0, 2). Everything to the right of the line is shaded.
(–1, 3)
A. (0, 2)
B. (1, 2)
C. (2, –1)
D. (2, 2)
Answer:
d
Step-by-step explanation:
i took the test
Answer:
I just did this test, its 1,2 and 2,2
Step-by-step explanation:
How would i draw the line y= -x
Answer:
Hope this helps :)
Step-by-step explanation:
Answer:
Step-by-step explanation:
Round 5.096 to the nearest tenths
Answer: Rounded to the nearest tenths would be 5.1
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What is the value of y in the solution of the system?
x + y = 3
y = -6x + 3
Step-by-step explanation:
x + y = 3 ------------ eqn 1
y = -6x + 3 ---------- eqn 2
Substitute -6x + 3 for y in equation 1
x - 6x + 3 = 3
Evaluating we have,
-5x = 3 - 3
Evaluating further,
x = 0
Substitute 0 for x in equation 1
0 + y =3
Make y subject of formula
y = 3 - 0
y = 3
Hope this helped!
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what value of b makes the trinomial below a perfect square?
X^2-bx+100
a- 10
b-20
c-5
d-50
Answer:
Step-by-step explanation:
1. Perfect square trinomials, are 2nd degree polynomials, of the form so that , which can be written as perfect squares.
2. For example
3. Thus are perfect square trinomials.
4.
5. In the first case -b=20, so b=-20. In the second case, -b=-20, so b=20.
6. b∈{-20, 20}
Answer:
b) 20
Step-by-step explanation:
x^2-20x+100 If you factor it, it would be (x-10)^2
One card is drawn from a deck of 13 cards numbered 1 through 13. Find the following probabilities. (Enter your probabilities as fractions.)
Find the probability that the card is even or divisible by 3.
Answer:
the probability is 6/13
I need help with algebra 2
Answer:
Lucky you I am taking Algebra 2 right now. Whats ur question??
Step-by-step explanation:
NEED ANSWER ASAP WILL GIVE 20 POINTS ONLY IF CORRECT PLS ANSWER NOW
Which statement is true for the equation 3x − 3x − 2 = −2?
It has no solution.
It has one solution.
It has two solutions.
It has infinitely many solutions.
Answer:
Hey. This equation has infinite many solutions.
3x - 3x - 2 = - 2
3x - 3x = 0
3x = 3x
This equals to each other meaning infinite solutions
Step-by-step explanation:
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Explain how to find the slope of the function without using technology.
2x + 3y = 12
Answer: The slope is −2/3
Step-by-step explanation:
2 x + 3 y = 12 is the standard form for a linear equation. To determine the slope, solve the equation for y in order to convert to the slope-intercept form y = m x + b , where m is the slope and b is the y-intercept.
2 x + 3 y = 12
Subtract 2 x from both sides.
3 y = − 2 x + 12
Divide both sides by
3 . y = − 2 /3 x + 12 /3 =
y = − 2 /3 x + 4
The slope is
− 2 /3
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Answer:
6,000cm^3
Step-by-step explanation:
I don't know if this is correct but, volume is LxWxH and for each rectangular prism, it is 20cm x 10cm x 15cm. So each rectangular prism is 3,000cm^3 and you add them together, you get answer.
human activities have drastic effects on biomes match the human activities with the biomes they primarily
i don’t understand this , what’s the answer?
plz help! will give brainliest!!
Answer:
D) 18 units
Step-by-step explanation:
The ratio is
2 : 3
The actual number values are
12 : ?
Divide 12 by 2 (square A's side) = 6
Multiply 6 by 3 (square B's side) = 18
If a polynomial function f(x) has roots -7, 1 and 5i, what must also be a root of f(x)?
a) -5
b) -5i
c) 5+i
Answer:
-5i
Step-by-step explanation:
The band director of Eagle Rock High School asks her students to have a carwash as a fundraiser. They are going to charge $7.50 per car. The graph that represents the situation is shown below. Which of the following statements about the graph are true? Select all that apply. o The graph represents a function since every input value corresponds to exactly one output value. o The graph has an x-intercept. o The graph has a y-intercept. o The y-intercept represents the amount of money raised by the carwash. o The amount of money in the band fundraiser account represents the input values. o The number of cars washed relates to the amount of money in the band fundraiser account.
Answer:
The y-intercept represents the amount of money raised by the carwash.
The graph has a y-intercept
Step-by-step explanation:
Most reasonable, and not only that it's true bc it's shown on the graph label. :)
Please help me with this math question.
A university wants to conduct a sample survey to determine the average number of students who earned a GPA higher than 3.5. Which of the following survey methods is most likely to produce valid results?
A. The university surveys students who earned less than a 3.5 GPA.
B. The university surveys every other student who earned more than a 3.5 GPA.
C. The university surveys 600 randomly selected students who attend the university.
D. The university selects one department and surveys all of its students
Answer:
C. The university surveys 600 randomly selected students who attend the university.
Step-by-step explanation:
Consider function f.
f(x) = square root of 7x – 21
Place the steps for finding f-1(x) in the correct order.
Answer:
f⁻¹(x) = 1/7x² + 3Step-by-step explanation:
Givenf(x) = [tex]\sqrt{7x-21}[/tex]To find Inverse of f(x)SolutionChange f(x) → x, and x → y, and solve for y:
x = [tex]\sqrt{7y -21}[/tex]x² = 7y - 217y = x² + 21y = 1/7x² + 3y = f⁻¹(x)
f⁻¹(x) = 1/7x² + 3Mrs. Jagielski has $300 put aside for Christmas shopping. She spent 65% of her money on
Black Friday. How much money does she have LEFT to keep shopping with? *
Answer:
$195
Step-by-step explanation:
$300*.65 (your precent turns to a decimal) = $195 left
which list orders the numbers from least to greatest
Answer:
-5, -2, 1, 3
Step-by-step explanation:
mark the points on the number line and go from left to right. The points on the left are always less than the right
Answer:
the person above me is right mark me brainiest for being right
Step-by-step explanation:
Help me out hereeeeeeeeeeeeeeeeee
Answer: The answer would be the 2nd choice. 2 4/5 is the answer. Step by-step explanation:
For 1 miles distance : 7/10 of a mile she runs and 3/10 she walks.
For 4 miles distance:(4 times the previous distance) she will run:
4*(7/10)= 18/20 = 2.8
2.8 as a mixed number/fraction is 2 4/5 therefore the answer is 2 4/5.