Answer:
72Step-by-step explanation:
Given the function;
g(x) = x^2 - x
We are to find g(-9)
g(-9) = (-9)² - 9
g(-9) = 81 - 9
g(-9) = 72
hence the value of g(-9) is 72
Can somebody please help me?
Answer:
576 cm2
Step-by-step explanation:
How do I solve this equation?
Lucy has 68 books.
This number of books is 70% more than the number of books she had last year.
How many books did Lucy have last year?
Answer:
Lucy had 40 books last year.
Step-by-step explanation:
assuming 100% is the percent;
100% + 70%
100 : x
170 : 68
cross multiply = 170x = 100 x 68
-------- ————-
170 170
cancel 170/170
therefore x = 100 x 68 divided by 170
result is 40
The number of books that Lucy has last year will be 40 books.
What is the percentage?The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates to one hundred percent. It is symbolized by the character '%'.
The percentage is given as,
Percentage (P) = [Final value - Initial value] / Initial value x 100
Lucy has 68 books. This number of books is 70% more than the number of books she had last year.
Let 'n' be the number of books. Then the equation is given as,
1.7 n = 68
n = 68 / 1.70
n = 40
The number of books that Lucy has last year will be 40 books.
More about the percentage link is given below.
https://brainly.com/question/8011401
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Which statements are true regarding the sides and angles of the triangle? Select three options. Line segment X Y is the longest side. Angle X is the largest angle. Angle Z is greater than angle Y. Line segment X Z is opposite the largest angle. Line segment X Z is the shortest side.
Answer:
B. Angle X is the largest angle.
C. Angle Z is greater than angle Y.
E. Line segment X Z is the shortest side.
Step-by-step explanation:
YZ = 2n, XZ = n - 2, XY = n + 4 and n ≥ 5.
YZ - XZ = 2n - (n - 2) = n + 2. but n ≥ 5, hence YZ - XZ = n + 2 ≥ 7.
YZ > XZ
YZ - XY = 2n - (n + 4) = n - 4. but n ≥ 5, hence YZ - XY = n - 4 ≥ 1
YZ > XY
XY - XZ = n + 4 - (n - 2) = 6: XY > XZ
Therefore:
YZ > XY > XZ
The angles are proportional to their opposite sides, hence:
∠X > ∠Z > ∠Y
A. Line segment XY is the longest side.
This is wrong because YZ is the longest side.
B. Angle X is the largest angle.
This is correct. ∠X is the largest angle because it is opposite to the longest side (YZ)
C. Angle Z is greater than angle Y.
This is correct. ∠Z is opposite to the side XY while ∠Y is opposite to the side XZ
D. Line segment XZ is opposite the largest angle.
This is wrong. ∠X is the largest angle which is opposite to the longest side (YZ)
E. Line segment X Z is the shortest side.
This is correct
Answer:
bce
Step-by-step explanation:
For the mathematics part of the SAT the mean is 514 and the standard deviation of 113, and for the mathematics part of the ACT the mean is 22 with a standard deviation of 4. Bob scores a 685 on the SAT and a 29 on the ACT. Use z-scores to determine on which test he performed better.
A) ACT
B) SAT
The principal of East High School wants to buy a new cover for the sandpit used in the long-jump competition. He measured the sandpit and found that the length is 29.2 feet and the width is 9.8 feet. What will the area of the new cover will be. (I'll give brainliest for an explanation)
uhhh if you get all of these correct ill gib banana
Answer:
For the first one, I believe it's RT and TV - ST and TU
Second one, first and second answer.
And third is SSS I believe
Really hope this helps you out, I struggle a bit in Geometry as well, so I get what you're going through
i need help
this is due today at 4
Answer:
Hi The Answer is A.
Step-by-step explanation:
The Answer is A Because of the funter travel of the X.
x*y=z
Hope This Helps.
:)
My name is John henry.
Please help if you help thank you so much
Answer:
All answers apply
Step-by-step explanation:
Although it may seem like it doesnt, the absolute value of -12 is just 12, which ends up still being less than 14.
Absolute value takes away the negative and leaves positive number as a result.
Answer:
all of them since it's absolute value all numbers are below 14
What is the constant of proportionality for the data represented on the graph?
Answer:
200 meters per minute
Step-by-step explanation:
each minute goes by 200 meters
6) Cassie and Gabby are selling pies for a school fundraiser. Customers can buy apple pies and lemon pies. Cassie sold 6 apple pies and 4 lemon pies for a total of $80. Gabby sold 6 apple pies and 5 lemon pies for a total of $94. What is the cost of each pie?
I need help plz
What is the value of the expression if z=27?
7/9z-18+1/3z
A. 12
B. 30
C. 48
D. 84
Answer:
12
Step-by-step explanation:
Just put in the value of 27 in all the z's
help me plzzz!!!
I’ll give brainliest
Answer:
-11.5
Step-by-step explanation:
write the equation for two less than x PLEASE HELP ASAP!! WILL MARK BRAINILIEST!!
Answer:
x - 2
Step-by-step explanation:
Have an amazing Christmas break!
Feel free to give brainliest, cuz I really need some right now. I'm getting tired of people deleting them.
Need some help with math pleasee
Answer:
whats the question? I ca answer it if you tell me :)
Step-by-step explanation:
7) A cylindrical pipe has a circumference of 16 cm. Calculate the diameter of the pipe
Answer:
pi×diamiter = circumference
pi÷circumference = diamiter
3.14159265358979 (pi) ÷ 16
Step-by-step explanation:
PLS HELP W MATH FINAL
Answer: ask ma th way
Step-by-step explanation: it gives you the right answer
Please answer if your good with graphs please!
Answer:
x = -5
Step-by-step explanation:
f(x)= is another way of saying y=
When y is equal to -3...you are looking for a point on the graph where it is -3 on the y-axis..then x is -5.
Look at (-5,-3).
A. 7.6
B.9
C.7.1
D.8 units
HELPP PLEASEE
Answer:it will be c
Step-by-step explanation:
9514 1404 393
Answer:
C. 7.1
Step-by-step explanation:
The distance is found using the distance formula:
d = √((x2 -x1)² +(y2 -y1)²)
d = √((1-(-6))² +(1-2)²) = √(7² +(-1)²) = √50
d ≈ 7.07107 ≈ 7.1 . . . . . matches choice C
Calculate the average times it took the car to travel 0.25 and 0.50 meters. Record the averages, to two decimal places, in Table C of your Student Guide.
What is the average time it took the car to travel 0.25 meters?
seconds
What is the average time it took the car to travel 0.50 meters?
seconds
Answer:
What is the average time it took the car to travel 0.25 meters?
2.23 secondsWhat is the average time it took the car to travel 0.50 meters?
3.13 secondsI hope is work you!!
(1) The first velocity of the car with two washers at the 0.25 meter mark is 0.125 m/s.
(2) The second velocity of the car with two washers at the 0.5 meter mark is 0.25 m/s.
What is velocity?Velocity is the rate of change of displacement with time. The velocity of the cars depends on displacement and time of motion.
First velocity of the car at the 0.25 meter markThe first velocity is calculated as follows;
v1 = 0.25 m / t1
let t₁ = 2 s
v₁ = 0.25/2
v₁ = 0.125 m/s
Second velocity of the car at the 0.5 meter markv2 = 0.25 m / (t2 – t1)
let t₂ = 3 s
v₂ = 0.25(3 - 2)
v₂ = 0.25 m/s
The complete question is below:
Calculate the first and second velocities of the car with two washers attached to the pulley, using the formulas
v1 = 0.25 m / t1, and
v2 = 0.25 m / (t2 – t1)
Learn more about velocity here: https://brainly.com/question/6504879
What is the symbol for infinitely many solutions?
HELPPP!!!!!
Enter the LCD of the fractions.
5/6 , 2/7 , and 17/21.
DONT GET IT WRONG PLEASE!
Maria bought cupcakes for her sister's birthday party. 20% of the 15 cupcakes had sprinkles on top. How many cupcakes had sprinkles? Please answer
Answer:
3 cupcakes
Step-by-step explanation:
to figure it out you could've done 15*0.20
use that equation for future percentage problems
amount x percentage in the form of a decimal
Solve the absolute value inequality: |8x + 5| > 15. Express using interval notation
Answer:
8 < 2
Step-by-step explanation:
8x + 5 > 15
8x > 15 - 5
8x > 10
x < 2
cmiiw
1 2⁄3 ÷ 3 1⁄3 =
answer ASAP please
Answer:
0.5 or 1/2 ☺
Step-by-step explanation:
Answer:
1/2
Step-by-step explanation:
............Find .....X......
Answer:
x=50
Step-by-step explanation:
(x-10)+x+90=180
2x-10+90=180
2x+80=180
2x=100
x=50
Which steps are needed to solve this equation?
.
b minus 21 = 177
Subtract 21 from the left side and add 21 to the right side of the equation.
The answer is b = 198.
Check the solution by substituting 198 for b.
Add 21 to the left side and subtract 21 from the right side of the equation.
The answer is b = 156.
Check the solution by substituting 198 for b.
Subtract 21 from both sides of the equation.
The answer is b = 156.
Check the solution by substituting 156 for b.
Add 21 to both sides of the equation.
The answer is b = 198.
Check the solution by substituting 198 for b.
Answer:
D. Add 21 to both sides of the equation.
The answer is b = 198.
Check the solution by substituting 198 for b.
Step-by-step explanation:
D. 21-21= 177+21=198
0
198-21=177
The steps are needed to solve b - 21 = 177 equation are:
Add 21 to both sides of the equation.
The answer is b = 198.
Check the solution by substituting 198 for b.
What is an equation?"It is a statement which consists of equal symbol between two mathematical expressions."
What is the solution of the equation?"It is the set of all values that that make an equation true."
For given question,
We need to solve the equation b - 21 = 177
⇒ b - 21 = 177 ................(original equation)
⇒ b - 21 + 21 = 177 + 21 .................(Add 21 to each side)
⇒ b = 198
Therefore, the steps are needed to solve b - 21 = 177 equation are:
Add 21 to both sides of the equation.
The answer is b = 198.
Check the solution by substituting 198 for b.
Learn more about solution of equation here:
https://brainly.com/question/545403
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51=3x-4x+4 solve for x please
Answer:
you answer is x=-47
Step-by-step explanation:
easy peasy
Please please help!!! Solve for the value of x and y
a=3/a+2
Answer please ?
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