Answer:
3
Step-by-step explanation:
w= x
l= x-4
x(x-4) = 45
x^2-4x = 45
IM 6 grader I need help on this plzzz
Answer:
A reflection over the y-axis
Step-by-step explanation:
David wants to determined the number of students in his school who like Brussels sprouts. What is the population of David's study?
Answer:
Answer is all of the students in David's school.
Step-by-step explanation:
I hope it's helpful!
Answer:
All the students in his school.
Step-by-step explanation:
The population would be all of the kids in his school because he has to ask every person to get accurate results.
HELP ASAP!!! WHICH EQUATION FITS THE PATTERN IN THE TABLE HOW DO YOU GO FROM 1 TO 22
Answer:
I believe its "the value of y is 21 more tha the value of x, equation is y= x+21"
Step-by-step explanation:
Apply the algebra tiles to find (5x^2+x+7)+(6x+4)
Answer:
=5x2+7x+11
Step-by-step explanation:
coach thomas has a player who made 9 free throws shots out of his 15 times . to make the team , a player must be able to to shoot 65% of the free throws . will he make the team
Expand & simplify
(2x + 6)2
Answer: 4x+12
Step-by-step explanation:
The distributive property states that a(b+c) = ab+ac.
Thus, simply do 2*2x+2*6 = 4x+12
Hope it helps <3 :D
Sam's mother is twice as old as Sam. In 12 years, Sam will be as old as his mother was 12 years ago. How old are Sam and his mother now?
Answer:
Sam is 24 years old and his mother is 48 years old.
Step-by-step explanation:
Equations
Let's call
x = Sam's current age
Since Sam's mother is twice as old as Sam:
2x = Sam's mother current age
x + 12 = Sam's age in 12 years
2x - 12 = Sam's mother age 12 years ago
These two last expressions are equal:
x + 12 = 2x - 12
Subtracting x and adding 12:
x = 24
2x = 48
Sam is 24 years old and his mother is 48 years old.
Sam, is 24 years old. His mom is 48 years old.
Please help ;-;
Jaxon measured a line to be 5.7 inches long. If the actual length of the line is 5.3 inches, then what was the percent error of the measurement, to the nearest tenth of a percent?
Answer:
7.5
Step-by-step explanation:
Percent Error =
Vobserved - Vtrue
Vtrue
=
5.7 - 5.3
5.3
=
0.4
5.3
= 7.5471698113208%
Answer:7.5
Step-by-step explanation:
Will give brainliest to correct answer
An ellipse centered at the origin has a focus of (3./11.0) and a minor axis vertex of (0,15). Find the equation of the
ellipse
A.X?
+
18
= 1
15
B.
x
+ =1
225 99
c.
x
+
225
324
D.
x?
+
324 225
1
Answer:
The answer is b
Step-by-step explanation:
Answer: The answer is B
Step-by-step explanation:
I don't know how to explain it but I am sorry if it is wrong
You win an online auction for a toy. Your winning bid of $90 is 75% of your maximum bid. How much more were you willing to pay for the toy than you actually paid?
I could have paid $30 more dollars for the toy than I actually paid.
What is the percentage?A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.
Given, You win an online auction for a toy and your winning bid of $90 is 75% of your maximum bid.
Assuming 'x' is the maximum amount I could have paid for the bid.
Therefore, 75% of 'x' is $90 which is,
(75/100)×x = 90.
0.75x = 90.
x = 90/0.75.
x = 120.
So, The amount of more money I could have actually paid is,
(120 - 90)
= $30.
learn more about percentages here :
https://brainly.com/question/24159063
#SPJ2
The ratio of girls to boys in a classroom is 4 to 5.
If there are 20 boys, how many girls are there?
Answer: 25 girls
Step-by-step explanation:
Need help ON THESE TOO PLEASE WILL MARK BRAINLY
Answer:
1)
angle 2WZX = angle ZYX ( Since all angles and sides of a rhombus are equal)
ZYX = 2 x 29.5
59
2)
4x - 10 =90 (since all angles of a rhombus intersect at 90°)
x=90+10/4
x=100/4
x=25
hope this helps
Marty paid $72 for a jacket that had been marked down 20%. Calculate the original price of the jacket.
Answer:
The original price was $90.
Step-by-step explanation:
Let j represent the original price. Then, subtract 20% from 100%, obtaining 80%. The markdown price is 80% of j, or 0.80j = $72
Solving for j, we get j = $72/0.80 = $90
Answer:
86.40
Step-by-step explanation:
86.4 rand 72 plus 14.4 equals 86.40
Please help.
Is algebra.
Answer:
Step-by-step explanation:
#3 D
#4 c
Answer:
1. D
2. C
Step-by-step explanation:
I used a ✨calculator✨
HELPPPPPPPPP MEEEEEEEE PLEASEEEEEE
Step-by-step explanation:
Hope it helps please give me brainliest
a car was traveling 35 miles per hour for a number of hours.
Answer:
how much hours and where is it going.
Step-by-step explanation:
what is the area of a rectangle with a length of 21 feet and a width of 12 feet?
What are the measures of Angles d, e, and f? Show your work and explain your answers. (10 points)
Part A - Find the measure of angle d showing all work and reasoning. (3 points)
Part B - Find the measure of angle e showing all work and reasoning. (3 points)
Part C - Find the measure of angle f showing all work and reasoning. (3 points)
Part D - What does the box mean in the triangle with angles e and d? (1 point)
Answer:
Part A - Angle d is 29º
Part B - Angle e is 61º
Part C - Angle f is 95º
Part D - the box represents a 90º angle
Step-by-step explanation:
Angle d is 29º because of the vertical angles theorem
Angle e is 61º because if you take into account that it tells you one of the angles is 90º, you'll add d, which is 29º, to that in order to get 119. Then you'll subtract 119 from 180, as all the angles in a triangle must have a sum of 180º degrees. The result should be 61º
Although it looks rather acute, f should be 95 degrees because it's a supplementary angle with 85º, meaning you subtract 85 from 180
The box in the triangle is just a symbol indicating a 90º angle
Which of the following options have the same value as 25%, percent of 64?
Choose 2 answers:
(Choice A)
A
25 6425⋅6425, dot, 64
(Choice B)
B
\dfrac{25}{100}\cdot 64
100
25
⋅64start fraction, 25, divided by, 100, end fraction, dot, 64
(Choice C)
C
0.25\cdot 640.25⋅640, point, 25, dot, 64
(Choice D)
D
64\div \dfrac{25}{100}64÷
100
25
64, divided by, start fraction, 25, divided by, 100, end fraction
(Choice E)
E
25\div \dfrac{64}{100}25÷
100
64
Answer: 96/100⋅25 and 0.96⋅25
Step-by-step explanation: i did it on khan academy :D
Answer:
choice A
choice c
Step-by-step explanation:
simplify (2x + 3)(2x - 3) - (25x + 10) with all steps included.
Answer:
4x^2-25x-19
Step-by-step explanation:
First off you got to distribute all the negative signs that were given. After distributing you gotta do it again to the remaining then after that, you must combine all like terms and get rid of them.
Can I get help on this page? ;v;
PLEASE PLEASE HELP ME!!
Answer:
C. BC ≅ EC
hopes this helps :)
Answer:
Line AC is congruent to line DC (top answer)
Step-by-step explanation:
If a point is a midpoint of a line, then each half of the line (AC and DC in this case) is equal
PLEASE, HELP ME IN THIS!!
Answer:
i think the 2nd one
Step-by-step explanation:
Answer:
y = x+40
Step-by-step explanation:
First, calculate the rate of the rate by using the slope formula, [tex]m = \frac{y_1-y_2}{x_1-x_2}[/tex].
m = (50-47)/(10-7) = 3/3 = 1
Now plug m = 1 into the slope-intercept form, y = mx+b. Also plugin y = 42 and x = 2 in other to find the y-intercept (b).
42 = 1(2)+b
42-2 = b
b = 40
Replace b with 40 in the slope-intercept formula.
y = x+40
Angela S. became a famous architect. She made $90000 in 2004 . Then, in 2005 she made $120000 . What is the percent of change in her income
Answer:
33.333333% change
Step-by-step explanation:
that 3333 actually goes on forever. also i could be wrong but im pretty sure im right.
Solve for f
0.3=0.5f-0.7
Answer:
f=2
Step-by-step explanation:
0.3+0.5f-0.7
Move the varibale (0.5f) to the left-hand side and change it's sign to negative.
-0.5+0.3+-0.7
Move the constant to the right hand side and change it's sign
-0.5f=-0.7-0.3
Calulate the differnce
-0.5f=-1
divide both sides by -0.5
F=2
Choose the ordered pair that describes point T
Answer:
D: 0,2
Step-by-step explanation:
the horizontal line is the x-axis (the first number) and the vertical line is the y-axis (the second number) it goes across the x-axis 0, times making 0 the first number and goes up the y-axis 2 times making 2 the second number and the only ordered pair that matched those numbers is D: 0,2
Hope i helped you!
In which quadrant, or on which axis, does the terminal side of angle 540° lie?
Your answer:
A. Q II
B. QIII
C. Quadrantal angle / positive x-axis
D. Quadrantal angle / negative x-axis
A sporting goods store is selling all their exercise equipment for 30% off.
The regular price for an exercise bicycle is $260. The regular price for a set of hand weights is $120.
Part A
Find 70,5,50,10? of the cost of the exercise bicycle. Multiply that amount by 30,260,3,10? to find 30% of the cost. Then x,/,-,+ the regular price to find the sale price.
Use your answers from Part A to find the sale price for the exercise bicycle. Enter your answer in the box.
___________
What is the sale price of the hand weights?
A.114
B.36
C.84
D. 380
Answer:
c. 84
Step-by-step explanation:
120 times .70 = 84
Nathan planted a tree that is 32.5 inches tall. If the tree grows 4 inches each year, how long will it take for the tree to reach a height of 40 inches
Answer:
10 years boi ez
Step-by-step explanation:
you go into best buy to purchase a new TV and bring 500 with you.The TV cost 466 and there is a 7% sales tax. how much will u have left after you leave best buy
Answer:
1.38
Step-by-step explanation:
The total cost of the TV is the retail price plus the tax, tax (in this case) is 7% or 0.07 of the retail price, so
T = p + 0.07p, at a price of 466
T = 466 + 0.07(466)
t = 466 + 32.62 = 498.62
If you arrived with 500, you'd leave with 500 - 498.62 = 1.38 and a TV