Answer:(b^7/4^5)^-3=? Select the equivalent expression. A: b^-21times 4^-15. B: b^21/4^15. C: 4^15/b^21
Step-by-step explanation:
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I NEED HELP FAST please
a) The step where Mardie first made an error is given as follows: Step 1, as the negative sign means that the sign of each term inside the parenthesis should be changed.
b) The correct expression is given as follows: -8.6b + 28.
How to simplify the expression?The expression in the context of this problem is defined as follows:
(-3.78b + 12) - (4.82b - 16).
The negative sign before the parenthesis means that the sign of each term inside the parenthesis is changed, hence:
-3.78b + 12 - 4.82b + 16.
This is the step where Maddie made the first error.
Then, to simplify the expression, we combine the like terms, as follows:
b(-3.78 - 4.82) + 12 + 16 = -8.6b + 28.
More can be learned about simplification of expressions at https://brainly.com/question/723406
#SPJ1
The equation y = 9.5x + 100 represents the amount y that Javier earns by working at the grocery store for x hours, plus a holiday bonus. Which of the following is the amount of Javier’s holiday bonus?
A $9.50
B $100
C $90.50
D $109.50
Answer:
100
Step-by-step explanation:
Answer:
B) 100
Step-by-step explanation:
The 9.5 is how much he earns per hour for x hrs
Explain relationship between the factors of a quadratic expression, the roots of the related quadratic equation, and the x-intercepts if the graph of the related function
Step-by-step explanation:
So, let's use x2 - 3x - 28 as an example.
It's factors are (x - 7)(x + 4).
The roots are the x-values that make our expression equal 0. In order for x2 - 3x - 28 to equal 0, either of our factors need to equal 0, since 0 times anything is 0.
x2 - 3x - 28 = 0
(x - 7)(x + 4) = 0
x - 7 = 0
x = 7
(7 - 7)(7 + 4) = 0(11) = 0
x + 4 = 0
x = -4
(-4 - 7)(-4 + 4) = -11(0) = 0
That gives us two points on our graph, (7,0) and (-4,0). Where are those? On the x-axis! Thus, there are our x-intercepts.
By the way, for the future, along the x-axis, y = 0, so if you are asked for the x-intercepts (or roots), set y = 0 and solve for x.
Along the y-axis, x = 0, so if you are asked for the y-intercepts, set x = 0 and solve for y.
y = 02 - 3(0) - 28
y = -28
So, the y-intercept(s) of our same equation is y = -28, or (0,-28).
Boom.
Answer:
The x-intercepts are happen are when y = 0. If you tried to substitute y = 0 into a quadratic in the standard form you can not use traditional methods for solving for x.
Y=0 when looking for an x-intercept. Doing the factored form you are finding the x-intercepts. You always want the equation to equal 0 then factor out the equation till you get the numbers for the x-intercept.
Anil wants to multiply 5, 6, and 3. Which expression could Anil write in the box to
show a way to multiply these numbers?
5 x 6 x 3=0
5 x 18
30 + 3
11 + 3
11 x 3
(NO FILES OR LINKS!)
Answer:
5x18
Step-by-step explanation:
5x6x3 and 5x18 equal 90
Please help me with this volume problem!♪☂♧(^.^)
Answer:
30,000
Step-by-step explanation:
Okay so you know the formula. I would presume, so first you do 600 times 5 by doing just 6 times five which is 30 then adding the two zeroes back on. Then, proceed to multiply that by 10 by moving the decimal spot adding another 0. I hope this is correct.
Answer:
12 in
Step-by-step explanation:
Hey! Okay, so volume = l x h x w
We know the volume is 600, the height is 5, and the width is 10, so let's set up an equation.
volume = l x h x w
600 = l x 5 x 10
600 = l x 50
l = 600 / 50
l = 12
Hope that helps!
-Aphrodite
A group of seventh graders and a group of teachers at a local middle school were asked how many siblings they each have. The dot plots below show the results. Students A dot plot titled Students. A number line going from 0 to 9 labeled number of siblings. There are 2 dots above 0, 4 above 1, 7 above 2, 5 above 3, 2 above 4, and 0 above 5, 6, 7, 8, and 9. Teachers A dot plot titled Teachers. A number line going from 0 to 9 labeled Number of siblings. There is 1 dot above 0, 3 dots above 1, 2 above 2, 4 above 3, 5 above 4, 3 above 5, 1 above 6, 0 above 7, 1 above 8, and 0 above 9. When comparing the shape of the two sets of data, what conclusion can someone draw? The students tend to have fewer siblings than the teachers. The teachers tend to have fewer siblings than the students. Both the students and the teachers have a wide range of siblings. Both sets of data have the same shape. the answer is- a. The students tend to have fewer siblings than the teachers.
Answer:
A. The students tend to have fewer siblings than the teachers.
Step-by-step explanation:
First we need to draw the dot plots correctly. If you count both sides they have 20 each.
Now, clearly none have fewer nobody here yet has more or less but going on to the next step.
Multiply exactly the number of siblings times how many people chose that many siblings. Ex: 2 (siblings) times 7 (people who has 2 siblings) = 14. And so on.
On the Student A, we get a total of 41 people having sibling, if you count the 0's then there were a total of 43 people. But now on the Teacher's A Dot Plot, we have a total of 68 people, if you include the 0 then we have a total of 69.
So the answer is A. The students tend to have fewer siblings than the teachers.
Answer:
The sum is A
Step-by-step explanation:
Just ma duty to help the community
The O! Natural Company sells a juice 1-gallon Bottles. The current retail price of the juice is $3.50 for 1 gallon. In order to remain competitive, the company will decrease the price to $3.20.
A. What percent of the original price are consumers going to pay?
B Suppose the company's cost per 1 gallon is $2.70. What is the markup if they sell each gallon at $3.20?
What is the markup if they sell each gallon at $3.50?
Answer:
look below
Step-by-step explanation:
the percent of the original price customers are paying is 91% (or rounded to 90%).
markup: 1.18% rounded to 1.2%.
markup:1.3%
plz help 8th grade math
I am so confused this doesn't make any sense
Answer:
1 3/4
Step-by-step explanation:
The length shown is the diameter.
The radius is half of the diameter.
so 3 1/2 divided by 2
If the inflation rate is 123% per year and sales tax is 16%, how much would a $29 pair of slippers marked up 24.3% cost two years from now at and 18.5% off sale?
Help please! The formula is A = 1/2 BH I believe, I'm just a bit confused on what to do after! Thanks :)
Answer:
Area of the triangle is 8ft^3
Step-by-step explanation:
b=8
h=2
8x2=16
16 divided by 2=8
A=8
Hope this helps
Which of the following equations is equivalent to: 4x - 2 = 38
5x = -50
x - 20 = 30
5x = 50
2x = 10
Answer:
5x = 50
Step-by-step explanation:
4x - 2 = 38
solved - x=10
5x = -50
solved - x=-10
x - 20 = 30
solved - x=50
5x = 50
solved - x=10
2x = 10
solved - x=5
Answer:
5x = 50
Hope this helps!!
Step-by-step explanation:
if x equals y what does y equal
Answer:
x
Step-by-step explanation:
If x is y than y is equal to x only
Robin wants to buy a membership at a carwash this summer so that she can keep her car clean. She compared deals from Speedy Clean Carwash and Sudsy Bubbles Carwash to decide which membership to get. Robin arranged the information in the tables below.
How many times will Robin need to wash her car to spend the same amount at both carwashes?
P.S.: I attached the table below:)
There is a proportional relationship between any length measured in centimeters (cm) and the same length measured in millimeters (mm).
Use the ruler to help you complete the table.
Answer:
4 cm = 40mm
12 cm = 120mm
50 cm = 500mm
88,49 cm = 884,9
Timmy knows that, in his school, 10 out of every 50 students wear glasses. There are 600 students in Timmy’s school. How many students wear glasses?
(Those my shoes)⤵️
Answer:
120
Step-by-step explanation:
10 out of 50 is 1/5 which is 20 percent and 20 percent of 600 is =120
Mrs. Gregory needs to buy backpacks for the 60 children in her family. She calls 4 stores and records their prices in the table below. Mrs. Gregory goes to the store where she will save the most money. From which store does Mrs. Gregory purchase the backpacks?
Answer:
C) 2 for $39.50
Step-by-step explanation:
A) 119.70/ 6 = 19.95
19.95 x 60 = $1197
B) 60.75/3 = 20.25
20.25 x 60 = $1215
C) 39.50/2 = 19.75
19.75 x 60 = $1185
D) 21.99 x 60 = $1319.4
HELP!!!
A. y= x+25
B. x= y+25
C. x= 25y
D. y= 25x
Answer:
D. y=25x
Step-by-step explanation:
Since it's in the place of the slope which is also the constant rate of change.
Answer:
D
Step-by-step explanation:
x is the number of balloons popped so if you substitute x with a number and multiply it by 25 you will get y. so that’s what y equals
6. This box plot shows the number of minutes passengers spent in a station waiting room. What is the range of times spent in the waiting room? 7. This box plot shows the number of minutes passengers spent in a different station waiting room. What is the inter-quartile range of times spent in the waiting room? 8. This box plot shows the lengths of leaves (in centimeters) collected by a botanist. Express the minimum length as a percentage of the maximum length. 6 points if correct
Answer:
For 6, 30. For 7, 20. And for 8, 15.
Please answer correctly
Answer:
9 x 10 x 7 and 9 x 4 x 5
Step-by-step explanation:
I explained in the other question you asked
I need help with this plz.
I need help on this ASAP!
Answer:
4/9
Step-by-step explanation:
need more words to send
Answer:
Step-by-step explanation:
There are at least 2 ways you could do this. The best way is to use algebra. The trick is to equate 0.444444 to x, and then create a second equation by multiplying the first equation by 10. In doing this, you can subtract the two equations and that will get rid of the decimal.
10x = 4.444444...
x = .444444... Now subtract these 2 equation
9x = 4 Divide both sides by 9
9x/9 = 4/9
x = 4/9.
Since you are given choices, you could put each one into your calculator.
1/9 = 0,111111 not the answer.
40 /99 = 0.40404040 which is close but not the answer.
4 / 99 = 0.040404 ... which again is close but not the answer.
help me with b, please :)
Answer:11.25
Step-by-step explanation:
The number 5.25 is increased by one which is 6.25 then you add it by one again you get 7.25 but if you add 2 you get 9.25 so you add 2 to 9.25
Please help with question 14
Answer: C= 288
Step-by-step explanation:
Based on the given conditions, formulate: (480)(18)/30
Cross out the common factor: (16)18
Calculate the product or quotient: 288
Answer:
288
Step-by-step explanation:
If 18/30 ➗ x/10 = 6
x/480 ➗ 6/10 = 288
what is 2x + 30 = 186 First Answer will get Brainliest
2x+30=186
We move all terms to the left:
2x+30-(186)=0
We add all the numbers together, and all the variables
2x-156=0
We move all terms containing x to the left, all other terms to the right
2x=156
x=156/2
x=78
Answer:
78
Step-by-step explanation:
2x + 30 = 186
2x=186-30
2x=156
x=156/2
x=78
Help me pls
need helppppppp
Answer:
9 I think I'm not entirely sure
2 0 3 find the product. esamaite to check for reasonable
x 2 1
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Answer:
Step-by-step explanation:
North Carolina has 14 less electoral votes
than Florida. Write and solve a subtraction equation to find the
number of electoral votes for Florida.
solve and express your answer in both scientific and standard notation.
8.4 x 10^10
___________
3 x 10^7
Answer:
8.4 x 10^10 in scientifif notation is the same, in regular its 84000000000
3 x 10^7 in scientific notation is the same and in regular its 30000000
Answer:
8.4 x 10^10= 84000000000 (because 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10)
3 x 10^7 = 30000000 (because 10 x 10 x 10 x 10 x 10 x 10 x 10)
I hope this helps and brainlest please !