Answer:
-10
Step-by-step explanation:
Find f(x) = - x^2 + 2x first
f(3) = -(3)^2 + 2(3)
f(3) = - 9 + 6
f(3) = - 3
Now do f(3) - 7
f(3) - 7 = - 3 - 7
f(3) - 7 = - 10
Alice purchased a cell phone for 30% ff the original price. The sales price was $84 . What was the original price of the cell
Answer: $120
Step-by-step explanation:Quick maths.
square?
i neeed 200000000 charaters reeeeeeeee
Answer:
31
Step-by-step explanation:
you do 6×3=18 then you do 18+7=25 last 25+17=42 then you add 2
Answer:
i dont know what ur saying but square would me x2 or somthing like that.
Kyle was asked to make a model to solve the following problem.
Mr. Bloom is creating a garden. 4/10 of his garden will be roses and 2/10 will be made up of sunflowers. How much room does Mr. Bloom have left after planting the roses and sunflowers?
Kyle said the answer was 2/5. Do you agree? Justify your reasoning in the post below.
Answer:
yes, kyle is right.
Step-by-step explanation:
4/10 + 2/10 = 6/10
there are 4/10 left after planting which can be reduced by 2 = 2/5
Answer:
No, it is 3/5
Step-by-step explanation:
Because you divide by 2 for both bottom and top of the fractions and you will get 1/5, and 2/5 and you add them together and you get 3/5.
Look at the two equations: -3x + 6 = 21 -3x + 6 < 21
Answer: b
i got it right and the answer was b for me
1. Use the graph
below to find how
many solutions there
are and solve to find
the solution(s) to the
system of equations.
Answer:
One solution ; (2,5)
Step-by-step explanation:
When looking at a graph, the number of times the lines intersect is equal to how many solutions there are.
In this instance, there is only one intersection. Therefore, there is only one solution.
The solution is also that point of intersection. Therefore, the solution here is the point (2,5).
140% of what number is 39?
Provide an exact fraction answer.
Answer:
54.6 or 1 4/10
Step-by-step explanation:
If you find the 40 percent and add that to 39 (which is 100) you get 54.6.
What are m and b in the linear equation, using the common meanings of m and b?
1 + 4x + 6 - x = y
helppppppppppppppppppp
Step-by-step explanation:
sqrt(x + 2) - 15 = -3
sqrt(x + 2) = 12 (add 15 to both sides)
x + 2 = 12² = 144 (square both sides)
x = 142.
Answer:
x = 142
Step-by-step explanation:
√x+2 - 15 = -3 (Given)
√x+2 = 12 (Add 15 on both sides)
x + 2 = 144 (Square both sides to get rid of the radical)
x = 142 (Subtract 2 on both sides)
-4 -(-12)= 12 + (-4) true or false
In a random sample of 50 West High School students, 14 students have a pet. If 500 students attend West
High School, which of the following is the best estimate of the number of West High School students who
have a pet?
A 36
B 50
140
D 464
Answer:
the answer is 140
Step-by-step explanation:
prove tha "an empty set is a subset of any set"
Answ
yes it is
Step-by-step explanation:
What is 1,864.29 - 375
Answer:
1489.29
Step-by-step explanation:
Ignore the decimals, and just subtract 375 from 1864. That gives you 1489. Put the decimal values back and you get your answer of 1489.29.
for a time-series plot, what is emphasized if the vertical axis starts at a nonzero value?
Answer:
The changes in the variable described by the vertical axis are being emphasized.
Step-by-step explanation:
2. Explain. How do you know something is a pattern?
Answer:
It repeats over and over..
Step-by-step explanation:
Answer:
As such, the elements of a pattern repeat in a predictable manner. A geometric pattern is a kind of pattern formed of geometric shapes and typically repeated like a wallpaper design.
Step-by-step explanation:
Pls help me!!!!!!!!
Answer: 127,500
Step-by-step explanation: I just used a calculator
Answer:
the answer is 127,500
Step-by-step explanation:
Ron flies his airplane 20 km over the ground. He gains 800 m in altitude over the flight. What is the slope of the line segment representing the flight.
Answer:
this might help.......
Step-by-step explanation:
...
The slope of the line segment representing the flight is 0.04.
The slope of a line segment is calculated by dividing the change in the vertical direction (the altitude) by the change in the horizontal direction (the distance traveled). In this case, the change in the vertical direction is 800 meters (800 / 1000 = 0.8 kilometers) and the change in the horizontal direction is 20 kilometers. Therefore, the slope of the line segment is 0.8 / 20 = 0.04.
In other words, for every kilometer that Ron travels, he gains 4 meters in altitude.
Here is the solution in more detail:
Define the variables.
x: The distance traveled in kilometers.
y: The altitude in meters.
Write the equation for the line segment.
The slope of the line segment is 0.04, so the equation for the line segment is y = 0.04x + b.
We know that when x = 0, y = 0, so b = 0.
Substitute the known values into the equation.
We know that x = 20 and y = 800, so we can substitute these values into the equation to get 800 = 0.04 * 20 + 0.
Simplifying the right side of the equation, we get 800 = 0.8.
Solve for the slope.
The slope is 0.8 / 20 = 0.04.
Therefore, the slope of the line segment representing the flight is 0.04.
To learn more about slope here:
https://brainly.com/question/14511992
#SPJ2
Which graph shows a linear relationship?
Answer:
Graph C
Step-by-step explanation:
Graph C shows a linear relationship
Answer:
For that one is C
easy question????????????/
Answer:
The answer to this is...........
Step-by-step explanation:
unknown
or 95
Answer:
95
Step-by-step explanation:
Danica made $319 babysitting last month. In the that month, She babysat for a total of 29 hours. How much money did Dianica make per hour?
Answer:
$11/hr
Step-by-step explanation:
$319 divided by 29 hours she worked= getting paid 11/hr
two percent of a product are defective. if a lot of 100 items are ordered what's the probability that there are no defective item? what's the probability that there are at least two defective items?
Answer:
P(X ≥ 2) = 0.5967
Step-by-step explanation:
Using binomial probability distribution formula;
P(X = k) = C(n, k) × p^(k) × (1 - p)^(n - k)
two percent of a product are defective. Thus; p = 0.02
a lot of 100 items are ordered. Thus, n = 100
Probability that there are no defective items is;
P(X = 0) = C(100, 0) × 0.02^(0) × (1 - 0.02)^(100 - 0)
P(X = 0) = 0.98^(100) = 0.1326
the probability that there are at least two defective items will be;
P(X ≥ 2) = 1 - P(X < 2)
Now,
P(X < 2) = P(X = 0) + P(X = 1)
P(X = 1) = C(100, 1) × 0.02^(1) × (1 - 0.02)^(100 - 1)
P(X = 1) = 100 × 0.02 × 0.98^(99) = 0.2707
Thus;
P(X < 2) = 0.1326 + 0.2707
P(X < 2) = 0.4033
P(X ≥ 2) = 1 - 0.4033
P(X ≥ 2) = 0.5967
The two triangles shown are similar. Which of the following is an acceptable similarity statement for the triangles?
Question 8 options:
A)
ΔQSR ∼ ΔVUT
B)
ΔSRQ ∼ ΔVUT
C)
ΔRQS ∼ ΔVUT
D)
ΔSQR ∼ ΔVUT
Answer:
B
Step-by-step explanation:
they are two 90° .so B is correct I think
Answer:
B)
ΔSRQ ∼ ΔVUT
Step-by-step explanation:
The angles in the order SQR match VUT
Please mark me brainliest if this helped. :)
I need help please?!!!!
Answer:
I am think so opction (C).....
estimate the solution.
y=x+4
y=3x−1
9514 1404 393
Answer:
(x, y) = (2.5, 6.5)
Step-by-step explanation:
I find it easier just to solve the system of equations:
x + 4 = 3x - 1
5 = 2x
x = 5/2 = 2.5
y = x+4 = 6.5
(x, y) = (2.5, 6.5)
__
Additional comments
The first equation has a positive y-intercept and a positive slope, so makes a triangle with the axes in the 2nd quadrant.
The second equation has a negative y-intercept and a (more) positive slope, so makes a triangle with the axes in the 4th quadrant. The slope is greater for this line, so the lines will intersect in the 1st quadrant. Without more effort, the best estimate at this point is that x and y are both positive and y > 4.
Pedro had 17.70 in his wallet he spent 3.25 on a drink . How much does he have left? Estimate the answer by rounding to the nearest whole numbers before subtracting
Answer:
15
Step-by-step explanation:
$17.7 rounded to $18
$3.25 rounded to $3
$18 - $3 = $15
Stephanie and Jill share a reward of $65 in a ratio of 1 : 4. How much does Stephanie get?
Answer:
The answer is 52$
Step-by-step explanation:
the ratio converted in fraction is 1/5 by doing 4+1,
now you do 1/5 of 65 total dollars,
so you do 1/5 of 65,
=65/5
=13
jill will get 13$. but the question is asking for how much money did stephanie get. So now we do 13*4 which is 52$.
So stephanie gets 52$
Hope this helps,
Have a great day,
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It took Cedric 60 minutes to jog 8 laps. At this rate, how many minutes did it take to jog each lap?
Answer:
7.5 mins
Step-by-step explanation:
60 ÷ 8 = 7.5
hope it's right
How do you turn a fraction into a percentage
Answer:
you turn a fraction into a percentage by dividing the numerator by the denominator. then multiply the decimal by 100.
Step-by-step explanation:
how do I solve this?
Answer:
[tex] x = \frac{3}{2} + \frac{ \sqrt{5} }{2} ; \: \: x = \frac{3}{2} - \frac{ \sqrt{5} }{2} [/tex]
Step-by-step explanation:
[tex]1 + \frac{1}{ {x}^{2} } = \frac{3}{x} \\ \\ \frac{ {x}^{2} + 1 }{ {x}^{2} } = \frac{3}{x} \\ \\ {x}^{2} + 1 = \frac{3 {x}^{2} }{x} \\ \\ {x}^{2} + 1 = 3x \\ \\ {x}^{2} - 3x + 1 = 0 \\ equating \: it \: with \\ a {x}^{2} + bx + c = 0 \\ a = 1 \\ b = - 3 \\ c = 1 \\ \\ x = \frac{ - b \pm \sqrt{ {b}^{2} - 4ac} }{2a} \\ \\ x = \frac{ - ( - 3) \pm \sqrt{ {( - 3)}^{2} - 4 \times 1 \times 1} }{2 \times 1} \\ \\ x = \frac{ 3 \pm \sqrt{ {9 - 4}} }{2} \\ \\ x = \frac{ 3 \pm \sqrt{ {5}} }{2} \\ \\ x = \frac{3}{2} + \frac{ \sqrt{5} }{2} ; \: \: x = \frac{3}{2} - \frac{ \sqrt{5} }{2} [/tex]
Please awnser this. -5r + 6 < -5(r + 2)
Answer:
No solutionStep-by-step explanation:
-5r + 6 < -5(r + 2)-5r + 6 < -5r - 106 < - 10Wrong inequality so no solution
GR5_Math_U7_FS
Jasmine and Kelly each bought a pizza. The pizzas are the same size.
Jasmine cut her pizza into 12 slices.
Kelly cut her pizza into 6 slices, and ate 2 slices.
Together, Jasmine and Kelly ate of one pizza.
How much of the pizza did Jasmine eat?
Answer:
4/6 of a pizza.
Step-by-step explanation:
We know that:
Both pizzas are of the same size.
Jasmine cut her's into 12 slices.
Kelly cut her's into 6 slices, and ate 2 slices, then Kelly ate 2/6 of a pizza.
Jasmine ate X of a pizza, and we know that between them ate a total of 1 pizza.
This means that:
X of a pizza + 2/6 of a pizza = 1 pizza
X + 2/6 = 1
X = 1 - 2/6
X = 6/6 - 2/6 = 4/6
Jasmine ate 4/6 of a pizza, knowing that she cut her's into 12 slices, this would mean that she ate 8/12 of a pizza, or 8 slices.