Answers
Answer:
20
Step-by-step explanation:
Related Questions
Algebra question I don’t get it because you usually have to multiple A by C but there is no C in the problem.
Answers
And in this case, you are factorising in this question. You turn back into brackets basically.
We have:
72x^2 - 32
x^2 = x squared
factorising means finding the factor of.
(Forget the x squared for the moment to make life easier)
Factors of 72:
1 and 72
2 and 36
3 and 24
4 and 18
6 and 12
8 and 9
(9 and 8 = it repeats so we stop there)
And then factors of 32:
1 and 32
2 and 16
4 and 8
(8 and 4 = repeats so we stop there)
Notice how we see 8 twice in both factors of 72 and 32, this means that we use 8 as the main number we are going to multiply each of the 2 numbers in the brackets by. This is because it is the biggest common factor - this is what we have!
This is what we would have:
8(9-4)
BUT, that is not the answer!
Keep in mind we have the x squared too
But, 32 doesn’t have it?!!
It would be:
8(9x^2 - 4)
Do you get it??
Try to simplify it! Does it equal to 72x^2 - 32?
(And I am so very sorry for the long explanation, once you get the hang of it, it makes sense. Hope my explanation helped) :)
A printer is printing photos. For every 8 photos, the printer takes 4 minutes.
Complete the table below showing the number of photos and the time it takes to print them.
Answers
Answer:
Number of Photos: 2 8 14 16 20
Time: 1 4 7 8 10
Step-by-step explanation:
8 photos = 4 min
1 photo = 1/2
So Photo = Y × 2
Time = X/2
Does anyone know this?
Answers
Answer:
1 circifurence 6 18.850 area in squre 28.270
2 Circumference 37.70 Area in Square Inches 144.000
3 circumference 6.283 area in square inches 3.142
4 circumference 21.990 area in squre inches 38.480
pls help me!!
1. The graph of y = f(x) is a parabola whose vertex is at (1, -2). The graph of y = f(x - 3) is also a parabola. Where is the vertex of the graph of y = f(x-3)? Write your answer as an ordered pair.
2. The graph of has the line as an axis of symmetry. The graph also passes through the point. Find another point that must lie on the graph of y = f(x).
3. The graph of y = f(x) is shown in the first picture in red. Find the equation that corresponds to the blue graph.
Enter your answer in the form "y = …".
4. The graph of y = h(x) is shown in red in the second picture. Compute h(h(7)).
(Assume grid lines are spaced 1 unit apart.)
5. In the third picture is a portion of the graph of a function, y=u(x):
What is the exact value of u(-2.72)+u(-0.81)+u(0.81)+u(2.72)?
Answers
Answer:
Q1The graph of y = f(x), has vertex at (1, -2)
The vertex of a function f(x - 3) is going to be:
(1 - 3, -2) = (-2, -2)Q2The graph of y = f(x) has the line x = 5 as an axis of symmetry. The graph also passes through the point (8,-7). Find another point that must lie on the graph of y = f(x).The axis of symmetry is at the same distance from the symmetric points.
x = 5 is a vertical line. The point (8, -7) is 3 units to the right. So the mirror point will be 3 units to the left and have same y-coordinate: x = 5 - 3 = 2
The point is (2, -7)
Q3The graph in blue is the translation of the red to the left by 2 units.
So the equation is:
y = f(x + 2)Q4y = h(x) is graphed
h(7) = 5h(h(7)) = h(5) = -1Q5The graph of the function y = u(x) given
This is a odd function.
The coordinates of u(x) and u(-x) add to zero because u(-x) = -u(x)
Therefore:
u(-2.72) + u(-0.81) + u(0.81) + u(2.72) = [u(-2.72) + u(2.72)] + [u(-0.81) + u(0.81)] = 0 + 0 = 0i will give u brainlist just help pls and uh if u post nosence ur getting reported :))
Answers
A community center rents their hall for special events. They charge a fixed fee of $200 plus an hourly fee of $22.50.
How much would it cost Lin to rent the community center for 3 hours?
another community center rents their hall for special events. They charge a fixed fee of $200 plus an hourly fee of $22.50.
Write an expression to represent this situation using for the number of hours.
Answers
Answer:
it would cost $267.50
Step-by-step explanation:
if u mutiply 22.50x 3 it equals $67.50 plus the 200 dollars
Explanation:
Please help this is worth 15 points! Solve in y=mx+b from!
Answers
Answer:
The coordinates of every point on the line will solve the equation if you substitute them in the equation for x and y. The equation of any straight line, called a linear equation, can be written as: y = mx + b, where m is the slope of the line and b is the y-intercept
Step-by-step explanation:
What is the measure of the angle C?
Answers
Answer:
110
Step-by-step explanation:
the rest of that line has to equal 180 and you already have 70 20 180 - 70 = 110
Glen has a flower Garden with an area of 24 square feet. He is adding a square vegetable garden with a side length of x feet. The total area, in square feet, of these two gardens will be x2+24. What will the total area, in square feet of the garden when x = 9
A. 35
B. 42
C. 105
Answers
Answer:
my guess would be b
Step-by-step explanation:
if wrong sorry
PLEASE DO 9 NO ONE IS HELPING ME
Answers
Answer: A.5 B. 4
Step-by-step explanation:
I Need Help With No. 5
Answers
Answer:
3 times
Step-by-step explanation:
Explanation:
Factor the expression using the GCF
100 - 80 = ???
Answers
Answer:
20
Step-by-step explanation:
We found the factors and prime factorization of 80 and 100. The biggest common factor number is the GCF number. So the greatest common factor 80 and 100 is 20.
The greatest common factor of 100 and 80 is 20, so the answer is 20
1st question; What is 12 decreased by 8?
(Enter your answer as a number, for example, 5)
2nd question;How many 5's go into 25?
(Enter your answer as a number, for example, 8.)
3rd question:What is the product of 7 and 8?
Answers
Answer:
bjujvhuhvvhknjuvhvihhgv
Sean determines that the triangle shown in the diagram has angle measures of 40°, 40°, and 100°. Is Sean correct?
Answers
So the remaining 2 angles are equal 80
As all angles in a triangle are equal to 180
X+5 + x - 5 =80
Simplify
2x=80
X=40
Soo one of the angles are 40-5 which is (35)
And the other is 40+5 which is (45)
So sean is not correct
~sorry sean teehee
Answer:
Step-by-step explanation:
The two angles add to 80 degrees. Two remote angles always equal the exterior angle not connected to them.
That means that
x + 5 + x - 5 = 80
2x = 80
x = 40
The base angle is
40 + 40 + y = 180
80 + y = 180
y = 100
Note
You could do this much quicker by noticing that
80 + y = 189
y = 100
No he is not right
The given 2 angles are x + 5 which is 45 and x - 5 which is 35
All he got correct was the fact that the third angle is 100 degrees.
The list below shows the results of a survey of favorite ice-cream flavors among middle-school students.
18 students voted for chocolate.
12 students voted for strawberry.
20 students voted for vanilla.
What percentage of the students chose vanilla as their favorite ice-cream flavor?
A. 20%
B. 30%
C. 40%
D. 50%
Answers
Answer:
C. 40%
Step-by-step explanation:
There are 18 + 12 + 20 = 50 students in total.
20 students voted for vanilla.
So... 20 out of 50 students voted for vanilla.
20/50 = 2/5
2/5 = 40%
Answer:
C. 40%
Step-by-step explanation:
First you add them together:
12+18+20 = 50
Then, you times both sides of the equation by 2
24+36+40 = 100
You can see that 20 changed to 40, and that's the answer!
Use your knowledge about parentheses and substitution to solve the following:
7. 2(x + 4) + 10 =
8. 3(6x) + 4 =
9. 10(xy) =
10. 5(x + y) =
11. 2(rs) + 4(x)
12. 2(q) + 2(x + t) =
13. 6(7t + 4s) =
14. 9(10x) + 10y =
15. 2x(xy) =
16. r(s)(t) =
17. (r)(s)(t)(x)(y) =
18. (7x + 2Y) =
Answers
Answer:
7. 2(x + 4) + 10 =2x+18
8. 3(6x) + 4 = 18x+4
9. 10(xy) = 10xy
10. 5(x + y) =5x+5y
11. 2(rs) + 4(x) = 2(rs+2x)
12. 2(q) + 2(x + t) = 2(q+x+t)
13. 6(7t + 4s) = 42t+24s
14. 9(10x) + 10y = 90x+10y
15. 2x(xy) =2x^2y
16. r(s)(t) =
17. (r)(s)(t)(x)(y) =
18. (7x + 2Y) =
I didn't know the last ones- sorry-
Stuart wants to find the value of 3 3/4 -2 1/3 Before Stuart can subtract, he needs to rewrite both fractions with a common denominator. Drag a number or expression into each box to show how to write equivalent fractions so the new fractions have a common denominator.
Answers
Answer:
1 21/50
Step-by-step explanation:
3 3/4 = (3/4 x 4/4) = 3 9/12
2 1/3 = (1/3 x 3/3) = 2 4/12
3 9/12 - 2 4/12 = 1 21/50
Simplify the fraction below.
35/4
Answers
Answer:
8 3/4
Step-by-step explanation:
find the greatest common factor of 35 and 4, which is 1. Then divide both 35 and 4 by the greatest common factor to get the following simplified fraction: 35/4
If the numerator is greater than or equal to the denominator of a fraction, then it is called an improper fraction. You could convert it into a whole number or mixed number fraction. Which would now be 8 3/4
(If its not right let me know so I can rethink my answer)
8 3/4 as a fraction
PLEASE HELP I WILL GIVE BRAINLIEST TO THE FIRST PERSON TO ANSWER
1. The sum of two numbers is 55. The difference of the same two numbers is 3. What are the two numbers?
2. The product of two numbers is 66. The difference of the same two numbers is 19. What are the two numbers?
Answers
Answer:
1. 2x = 60
x = 30
y = x - 5 = 30 - 5 = 25
2. x= 11
please help asap ill give brainliest
answer choices
98
82
126
8
Answers
Answer:
82° all supplementary angles equal 180°.
This year, Ann watched 80 movies. She thought that 52 of them were very good. Of the movies she watched, what percentage did she think were very good?
Answers
Answer:
65%
Hope this helps :)
Answer:
65%
Step-by-step explanation
The problem can be represented by a fraction; 52/80, then to solve for a decimal, we will just divide 52 / 80 = 0.65, which equals 65% because any decimal can be written as a percent.
Lmk pls
Will pick the correct answer brainliest!!
Answers
Answer:
false
Step-by-step explanation:
because it would not result in a pre-image.
Ms. Blake spent 11 hours making gift baskets for families. Each gift basket took 15 hourto make. How many gift baskets did Ms. Blake make in 11 hours?
50
54
55
56
Answers
Answer:
0 baskets. It is not possible to make more than 0 baskets in 11 hours if it takes 15 hours to make a single one.
Step-by-step explanation:
Find the output, y, when the input, x, is -5.
Answers
Answer:
The output y is
Step-by-step explanation:
I need help, I need to determine the slope and y-intercept for each group. I need to write an equation for the graph in slope-intercept form.
Answers
Answer:
slope= 3/5 y int=-2 equation y = 3/5 -2
Step-by-step explanation:
slope= rise over run
y int = where the y axis and the line meet
equation= y =mx+b
m=slope
b = y int
Answer:
Step-by-step explanation:
Slope:3/5
Y Intercept: -2
Equation: y=3/5x-2
find the difference. 14.3 - (-4.3)
Answers
Write an equation for each line (use the picture)
Red Line:
Blue Line:
Green Line:
Yellow Line:
Answers
Answer:
Red Line: y=4
Blue Line: y=-2
Green Line: x=-1
Yellow Line: x=6
Step-by-step explanation:
Red line: the line crosses through 4 on the y axis. Therefore, y=4.
Blue line: the line crosses through -2 on the y axis. Therefore, y=-2.
Green line: the line crosses through -1 on the x axis. Therefore, x=-1.
Yellow line: the line crosses through 6 on the x axis. Therefore, x=6.
This is a bit confusing because when you see a horizontal line your mind might assume it would be an x=. Yet, it is the opposite. Hope this helps!
It is currently 0 degrees outside, and the temperature is dropping 4 degrees every hour. The temperature after h hours is -4h<-14. Find 2 possible answers for h that make the inequality true.
A. 3.5 hours
B. 1.5 hours
C. 2 hours
D. 4 hours
E. 4 hours
Answers
A. 3.5
Explanation:
3.5 x 4 = 14
Plz Help Its MATH!!!
Answers
Answer:
13 tenths and 6 hundredths
Hope this helps :)
Points for 2-3 people <3