EXPAND it please and explain
(9r-s/7)(9r+s/7)
Answers
Answer:
2. 2
81r - s/49
Step-by-step explanation: I don’t know how to explain it but yeah
( I’m probably wrong so if I am I’m sorry)
Related Questions
Classify the numbers as rational or irrational.
7
√ 14
7 + √ 14
7./14
rational
irrational
Answers
Answer:
1. R
2.I
3. I
4.R
Step-by-step explanation:
NEED ANSWER NOW PLS HELP
Answers
Answer:
The second one: [tex]8x^{2}y+7x^{2}-5y^{2}+3x-2+2x^{2}y-x^{2}-2y^{2}-3x-4[/tex]
Step-by-step explanation:
You have to combine the like terms (any numbers with the same variables and exponents)
[tex]8x^{2}y+2x^{2}y=10x^{2}y, 7x^{2}-x^{2}=6x^{2}, -5y^{2}-2y^{2}=-7y^{2}, 3x-3x=0, -2-4=-6[/tex]
If you put all of the answers together you get [tex]10x^{2}y+6x^{2}-7y^{2}-6[/tex]
1.) Diego paid $47 for 3 tickets to a concert. Andre paid $141 for 9 tickets to a concert.
Did they pay at the same rate (what was the value they paid for 1 ticket)? How do you
know?
Answers
The value they paid for one ticket is 15.67$
How do you know:
Andre paid for 3 times more tickets than Diego. 47 x 3 is 141, so they are at the same rate.
47 / 3 is 15.667, which rounds up to 15.67$ in money terms.
Help me solve this problem please
Answers
Answer:
look at picture :)))
Step-by-step explanation:
is this right?
At a candy store, Jeremiah bought 1 pound of jelly beans for $9. Meanwhile, Emma bought 4
pounds of jelly beans and 6 pounds of gummy worms for $60. How much does the candy
cost?
Plz help ASAP
Answers
Answer:
I think the candy cost 51 dollars
Jellybeans: 36$
Gummy worms: 15$
36 + 15 = 51
Step-by-step explanation:
Since jeremiah bought 1 pound for 9 dollar you can minus 9 from the equation which is 51 and since each pound of jelly beans were 9 dollars 9 x 4 = 36 and 51 - 36 is 15 so the cost of the gummy worms are 15 so
either 51 or 36 and 15
The sum of a number and its reciprocal is 6.41. What is the number?
Answers
Answer:
i think you need to make the number into a whole all together.
If f(x)= 2x-5, then what is the value of f(2) + f(5)
Answers
Answer:
4
Step-by-step explanation:
replace x with 2 then you get -1
Next step replace x with 5 then u get 5
Add 5 and -1. You get four.
The value of f(2) + f(5) in f(x) = 2x - 5 is 4.
What is a function?A function can be defined as the outputs for a given set of inputs.
The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.
Given, f(x)= 2x-5, therefore f(2) + f(5) can be obtained if we replace x with numerical values 2 and 5 in f(x) which is,
f(2) + f(5) = 2(2) - 5 + 2(5) - 5.
f(2) + f(5) = 4 - 5 + 10 - 5.
f(2) + f(5) = 4
learn more about functions here :
https://brainly.com/question/12431044
#SPJ2
Simplify: 12x + 4(-7x + 3)
Answers
hope this helps
Answer:
-4x+3
Step-by-step
4*(-7)=-28
4*3=12
12x-28x+12
-16x+12
4/ (-16x+12)= -4x+3
You can buy 5 cans for green beans at the Village Market for $3.70. You can buy 10 of the same cans of beans at Sam's Club for $6.90. Which place is the better buy?
Answers
Answer:
1 can of green beans at Village Market is $0.74. At Sam's Club, one can of green beans is $0.69. Therefore, Sam's Club is the better buy, by being cheaper than Village Market's by $0.05.
Step-by-step explanation:
Can you please solve this?
Answers
Answer:
I think it’s c
Step-by-step explanation:
Please solve this multi-step equation that has parenthesis.
2(x - 5) + x = x + 8
Answers
Answer:
Your answer : x = 9
Isolate the variable by dividing each side by factors that don't contain the variable.
Step-by-step explanation:
Hope this helped : )
The value of 4.8-(2.5-6.3)
Answers
Answer:
first you will Subtract 6.3-2.5 and should get 3.8 now 4.8-3.8=1
Step-by-step explanation:
Answer:
The answer is 1
Step-by-step explanation:
PEMDAS
The product of a and 52 is the same as 676
Answers
Answer: A= 13
Explanation: 13x52=676
Answer:
a = 13
Step-by-step explanation:
a * 52 = 676
52a = 676
a = 13
Please mark me the brainliest!?!
Nikki used the calculations shown to determine whether a carton of 12 eggs or a carton of 18 eggs was the better buy. A carton of 12 eggs cost $2.39, and a carton of 18 eggs cost $3.39. Unit price of the 12-egg carton = ($2.39)(12 eggs) = $28.68 per egg Unit price of the 18-egg carton = ($3.39)(18 eggs) = $61.02 per egg The 12-egg carton has the lower unit cost, so it is the better buy. What was her first error?
Answers
Given :
A carton of 12 eggs or a carton of 18 eggs was the better buy. A carton of 12 eggs cost $2.39, and a carton of 18 eggs cost $3.39. Unit price of the 12-egg carton = ($2.39)(12 eggs) = $28.68 per egg Unit price of the 18-egg carton = ($3.39)(18 eggs) = $61.02 per egg The 12-egg carton has the lower unit cost, so it is the better buy.
To Find :
What was her first error.
Solution :
Her first error is to find Unit price of egg in each carton.
To find, unit price we should divide total amount by number of units :
Unit price for carton of 12 eggs, $ (2.39)/12 = $0.199 .
Hence, this is the required solution.
Answer:
She is right, however her explanation is wrong.
In order to find the unit price, you need to divide the amount by the cost.
You will then see that 12 divided by 2.39 < 18 divided by 3.39.
The smaller unit price is obviously the better buy.
Step-by-step explanation:
plz help me understand this question
Answers
Answer:
sorry I can't understand this question
Step-by-step explanation:
im busy sorry
If b = 5, what is b3?
Answers
Answer:
15
Step-by-step explanation:
I'm assuming that b3 is the variable b times 3. So if you plug in 5 for the b variable you'd get (5)3 which is 5 times 3, or 15.
Find the midpoint between (2.8) and (-6.2). *
Answers
I added the two numbers together an divided it by two to find the median, or midpoint. Can I have brainliest?
help me pls A.S.A.P interpret in English
1. je mange toujours de la slade
2. tu as mange du riz
3. Elle a beaucoup d'enfants
4. IL a bu du the
5. je bois toujours du vin
6. vous etes des etudiants de la Langue francais
Answers
Step-by-step explanation:
1.)i always eat salad
2.)you ate rice
3.)She has a lot of children
4.)He drank tea
5.)i still drink wine
6.)you are students of the French language
(thanks, sorry and hope I helped)
What do you do in algebra
Answers
Basics of Algebra cover the simple operation of mathematics like addition, subtraction, multiplication, and division involving both constant as well as variables. For example, x+10 = 0. ...
Q 1: Find y, when, y + 15 = 30.
Solution: y = 30 – 15.
Q 2 : Find x, when, 9x = 63.
Q. 3: If x/7 = 21, then find x. Learning algebra helps to develop your critical thinking skills. That includes problem solving, logic, patterns, and reasoning. You need to know algebra for many professions, especially those in science and math.
Algebra is a system of manipulating numbers and operations to try to solve problems. When you learn algebra, you will learn the rules to follow for solving problems. But to help make that easier, you need to have a strong understanding of basic math facts. ... Being able to work with two-digit numbers is even more helpful. The Basic Laws of Algebra are the associative, commutative and distributive laws. They help explain the relationship between number operations and lend towards simplifying equations or solving them. Algebraic expressions include at least one variable and at least one operation (addition, subtraction, multiplication, division). For example, 2(x + 8y) is an algebraic expression. Algebra is thinking logically about numbers rather than computing with numbers. ... Paradoxically, or so it may seem, however, those better students may find it harder to learn algebra. Because to do algebra, for all but the most basic examples, you have to stop thinking arithmetically and learn to think algebraically. Algebra is an important life skill worth understanding well. It moves us beyond basic math and prepares us for statistics and calculus. It is useful for many jobs some of which a student may enter as a second career. Algebra is useful around the house and in analyzing information in the news.
What is the value (3-54(2) - 16
10
Answers
Answer:
I believe the exact value is -265
What property is 7+(a+b)=(7+a)+b
Answers
Answer:
associative property
Step-by-step explanation:
Associative property of addition is when you move the parentheses but the values don't move
Hope this helps you out!!!!
Write the equation for a parabola whose vertex is (-6,-1) and passes through (-12,17).
Answers
Answer:
[tex]y=\frac{1}{2}(x+6)^2-1[/tex]
Step-by-step explanation:
Equation of the Quadratic Function
The vertex form of the quadratic function has the following equation:
[tex]y=a(x-h)^2+k[/tex]
Where (h, k) is the vertex of the parabola that graphically represents the function, and a is a coefficient different from zero.
The vertex of the required equation is located at (-6,-1)
The parabola passes through (-12,17)
Substituting the coordinates of the vertex, the equation of the function is:
[tex]y=a(x+6)^2-1[/tex]
The value of a will be determined by using the given point:
[tex]17=a(-12+6)^2-1[/tex]
Operating:
[tex]17=a(36)-1[/tex]
[tex]36a=18\Rightarrow a=18/36=1/2[/tex]
Solving:
[tex]a=1/2[/tex]
The equation of the parabola is:
[tex]\boxed{y=\frac{1}{2}(x+6)^2-1}[/tex]
Working simultaneously, eight pumps fill in a pool in 32 hours. All pumps work at the same pace. If only half of the pumps are working, in how many hours will the pool be filled in?
Answers
Answer:
16 hours
Step-by-step explanation:
trust me its rsm principal test rite? lol u just divide the hours by 2 cuz there are only half the pumps
Answer:
64 hours
Step-by-step explanation:
Use the diagram below to answer the question.
6x + 15
10x-5
14 What is the value of ?
Use the diagram below to answer the following questions.
1
32 degrees
2
43 degrees
3
15 What is the measure of 21?
What is the measure of 232
Answers
Answer:
1. x = 5
Remember that all angles add up to 180, and because you know that one of the angles = 90, you can add the other two angles like so.
6x + 15 + 10x - 5 = 90
2.
Angle 1 = 43 degrees
Angle 3 = 32 degrees
Give two other names for PS
Answers
Answer:
it's c
Step-by-step explanation:
The line PS can be represented by the other names will be PQ, RQ, RS, PR, RS, and PS. Then the correct option is D.
What is a linear equation?A relationship between two or more parameters that, when shown on a graph, produces a linear model. The degree of the variable will be one.
A line is an object in geometry that is indefinitely long and has neither breadth nor depth nor curvature. Since lines can exist in two, three, or higher-dimensional environments, they are one-dimensional things. In daily speech, a line segment with two points designating its endpoints is also referred to as a line.
The line is shown below.
The line PS can be represented by the other names will be PQ, RQ, RS, PR, RS, and PS.
More about the linear equation link is given below.
https://brainly.com/question/11897796
#SPJ5
Using the figure below, find the measure of z ( just enter in the number for your answer don’t worry about the degree symbol or saying “ degrees” after the number
Answers
Answer:
z = 29°
Step-by-step explanation:
We know that the 3 angles in a triangle always add up to 180°. So for triangle ABC, angle A = 59° (given), and angle B = 43° + 49° = 92° (given).
angle A + angle B + angle C = 180°
59° + 92° + z = 180°
151° + z = 180°
Subtract 151° from both sides of the equation
z = 180° -151°
z = 29°
Solve
-5(x + 3) = 2(x - 4)
Answers
Answer:
x=-1
Step-by-step explanation:
Answer:
X = -1
Step-by-step explanation:
Eight and seventy-four hundredths in standard decimal form
Answers
Hey there!
Fact: Usually whenever you see the “-th” in word-form in mathematics we know the result will have a decimal in it!
Since you have the “-th” in your problem we know it’ll have a decimal
Now let’s start solving!
8 would be in your ONES place
.
7 would be in your TENTHS place
4 would be in your HUNDREDTHS place
Your answer SHOULD look like this: 8.74 ☑️
Note: ALWAYS check your wording in problems. It’ll come easier to you!
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
“The product of a number and negative 8” ( translating expression).
Answers
Answer:
x(-8)
Step-by-step explanation:
Plz help this assignment is due today!!! Also plz make sure to write the equation, graph, and type the solution. Thank you
Answers
Answer:
u can search on google the example