NAME
DATE
Write the letter for the correct answer in the blank at the right of each question.
1. Use the Distributive Property to write 2(-5 + 3) as an equivalent expression.
What is the value of the expression?
A. 2(8); 16
C. 2(-5) + 2(3); -4
B. 2(-5) + 3; 13
D. (5 + 3)2; 16
2. Add (-x + 4) + (3x + 2).
Answer:
Option C - 2(-5)+2(3) ; -4
Step-by-step explanation:
Distributive property means breaking up the factors and multiplying them separately
So here we have 2(-5+3) = 2(-5)+2(3) = (-10)+(6) = (-4)
So (-4) is the value.
Hope this helps you.
not sure need help please
Answer:
it should be A. because the lead broke her arm immediately. causing her to spike her preformances
Step-by-step explanation:
Answer:
A.
Step-by-step explanation:
Because it shows that after the 1st week, into the 2nd week, it shows an increase of 9 performances.
5x + 7y = 3
2x + 3y = 1
Solve
Answer: x=2 and y=−1
Step-by-step explanation:
5x+7y=3for x:
5x+7y=3
5x+7y+−7y=3+−7y(Add -7y to both sides)
5x=−7y+3
x= −7/ 5 y+ 3 /5
Substitute −7 /5 y+ 3 /5 for x in2x+3y=1:
2( −7/ 5 y+ 3 /5 )+3y=1
1 /5 y+ 6 /5 =1(Simplify both sides of the equation)
1 /5 y= −1 /5
y=1
Substitute −1 for y in x
−7 /5 y+ 3 /5 : x=
x=2
x=2(Simplify both sides of the equation)
. For every 5 students at Raymond Middle School, 3 students are in band, and
2 students are in sports. What part of the student population is in band?
Answer:
10 I believe
Step-by-step explanation:
someone pls help i’m desperate
Answer:
Filling in the blanks:
1. Opposite 2. C3. OppositeFactoring the polynomial:
x² + 11x - 26 = x² + 13x - 2x - 26 = x(x + 13) - 2(x + 13) = (x - 2)(x + 13)Brad buys a sandwich. The regular cost is $6. He uses a coupon for 10% off. After that deduction, a sales tax of 5% is added. How much money Brad need to pay for the sandwich?
A. $5.10
B. $5.67
C. $5.94
D. $6.93
HELP PLEASE!!!
Answer: ?
Answer:
third choice
Step-by-step explanation:
divide remember to reduce 2/10÷ 2/3
Answer:
3/10
Step-by-step explanation:
2/10÷2/3=2/10x3/2=6/20=3/10
Please help MEEEEEE!! NOWWWWW
Answer:
Tyler.
Step-by-step explanation:
The balance in Petra's account is -$32.50. The balance in Joh
account is $34.60. Who owes less money?
Explain please
Answer:
jon
Step-by-step explanation:
he owes less because his banks account is not in the negitives
Pls help I’ll brainlest for the correct answer
Answer:
U didn't add a file..
Step-by-step explanation:
A recipe needs 3/4 teaspoon black pepper and 1/4 teaspoon red pepper. How much more black pepper does the
recipe need?
Answer:
2/4 more teaspoons of black pepper then red pepper
Pls help with math ASAP
i will mark right answer branliest and report all wrong!!!
find for x
Answer:
120°
Step-by-step explanation:
The angle next to the x will be 40° due to the alternate angles so
x + 40° + 20° = 180° { being linear pair }
x + 60° = 180°
x = 180° - 60°
x = 120 °
Hope it will help :)
Answer:
120˚
Step-by-step explanation:
Since the two lines are parallel, they are alternate angles
So that means that the angle next to x must be 40˚
So 40 + 20 + x = 180 (since it's half a circle)
60 + x = 180
x = 120
The leaning Tower of Pisa is 84.32 meters (m) long.
84.32 m
height
not to scale
In the 1900s, engineers restored the building so that angle y changed from 6.5° to
2.8°. To the nearest hundredth of a meter, how much did the restoration change the
height of the leaning Tower of Pisa?
Answer:
67.32m
Step-by-step explanation:
Pizazz manufactures a 5.0 oz. energy drink of the same name. Because the cans are so small, consumers are concerned that they are not receiving the full 5 ounces in each can. A quality engineer at the company is charged with analyzing the filling process and ensuring accurate readings. On 15 different occasions over the past month, she has taken a sample of 6 energy drinks off the production line and recorded their weight. The sum of the sample means is 80.20 ounces and the sum of the sample ranges is 12.68 ounces (Hint: You are already given the sum. You just have to find the x-double bar and R-bar).
Determine the control limits of an x-bar and R-chart. What is your conclusion?
Answer:
The LCL of the R-chart starts from the origin ( i.e. zero value ) while the LCL of an X -chart did not start from the origin
LCL of R-chart = 0 * 0.84533 = 0
LCL of R-chart = 75.128
Step-by-step explanation:
Given data:
number of observations = 15
sample size ( m ) = 6
sum of sample mean = 80.20 ounces
sum of sample range ( R ) = 12.68 ounces
Determine the control limits of an x-bar and R-chart
for an R-chart
LCL of R-chart = D3 * R(bar) ---- ( 1 )
where : m = 6 , D3 = 0 , R = 12.68
R(bar) = 0.84533
back to equation 1
LCL of R-chart = 0 * 0.84533 = 0
for an X-chart
LCL of X-bar) = ( mean ) - (m x R-bar)
= 80.20 - ( 6 * 0.84533 )
= 75.128
The LCL of the R-chart starts from the origin ( i.e. zero value ) while the LCL of an X -chart did not start from the origin
Evaluate the indefinite integral. (Use C for the constant of integration.) sin(10x) 1 cos2(10x) dx
Answer:
The result of the integral is [tex]-\frac{\cos^3{10x}}{30} + C[/tex]
Step-by-step explanation:
We are given the following integral:
[tex]\int \sin{(10x)}\cos^{2}{(10x)} dx[/tex]
I am going to solve by substitution, using [tex]u = \cos{10x}[/tex], so [tex]du = -10\sin{10x}dx, dx = -\frac{du}{10\sin{10x}}[/tex]. So, we have
[tex]-\frac{1}{10} \int u^2 du[/tex]
Which has the following result:
[tex]-\frac{u^3}{30} + C[/tex]
Going back to x, the result of the integral is
[tex]-\frac{\cos^3{10x}}{30} + C[/tex]
help pls im trying pls
Answer:
5/10 + 3/10 = 8/10
5/10 - 3/10 = 2/10
Step-by-step explanation:
1/2 = 5/10
5/10 + 3/10 = 8/10
5/10 - 3/10 = 2/10
Answer: 1/2+3/10
= 5/10+3/10=8/10=0.8=80%
Answer:1/2-3/10
=5/10-3/10=2/10=0.2=20%
What function is the inverse of the exponential function y = 4^x?
The function that is the inverse of the exponential function y = 4^x is lnx/ln4
Exponential functionsThe standard exponential function is given as y = ab^x
Given the function
y = 4^x
Replace y with x
x = 4^y
Make y the subject of the formula
lnx = ln4^y
lnx = yln4
Divide both sides by ln4
lnx/ln4 = y
Hence the function that is the inverse of the exponential function y = 4^x is lnx/ln4
Learn more on inverse function here: https://brainly.com/question/2873333
#SPJ2
Please help ASAP! answer as mush as you want but I need the answers! Thanks have a great and blessed day!!
Answer:
2 is b 3 is a 4 is b
Step-by-step explanation:
The hanger image below represents a balanced equation.
Select an equation that represents the image.
Answer:
its b because we have to plus
Step-by-step explanation:
A store is selling a pair of boots for $45.00 is making a 30% profit at this.price. How much did the boots originally cost?
Answer:
$31.50 profit
Step-by-step explanation:
By subtracting 30% of 45 from 45, we are left with $31.50.
Answer:
$31.50 profit
Step-by-step explanation:
By subtracting 30% of 45 from 45, we are left with $31.50.
please help its a differcult math problem that im having a hard time solving
Answer:
Find ouut what It’s talks about
Step-by-step explanation:
what is the answer to this question - 2x + 5 = 12
Answer:
7/2
Step-by-step explanation:
2x+5=12
2x=7
x=7/2
slope, y-intercept, and equation
Answer:
slope: 2.5
y-intercept: -7
equation: 2.5x - 7
Step-by-step explanation:
I hope I helped. Sorry if I'm wrong :(
If you would like an explanation I'd be glad to give one.
Easy 20 points !!!!! Please help
Solve for u
5u + 8= -7
Answer:
Step-by-step explanation:
5u + 8 = - 7
5u = - 7 - 8
5u = - 15
u = -15/5
u = - 3
Convert 40/9 into a mixed number.
PLEASE HURRY!
Answer:
Step-by-step explanation:
40/9=4 4/9 ...
Which Which expression is equivalent to the 1 below
Answer:
B
Step-by-step explanation:
(2^6*9^6):18^14
18^6:18^14
18^-8
1:18^8
cos ( sin ^1 16\20) ??
help
Answer:
[tex]cos(sin^{-1} (\frac{16}{20} )[/tex] = 0.60
Step-by-step explanation:
Explanation
Given that the trigonometric function
[tex]cos(sin^{-1} (\frac{16}{20} )[/tex]
= [tex]cos(sin^{-1} (0.8 )[/tex]
= [tex]cos(53.13010)[/tex]
= 0.60
help me pls I need answers right now