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[tex]1)3k - 2k \\ = k(3 - 2) \\ = k(1) \\ = k[/tex]
[tex]2) {5x}^{2} - 10x - {8x}^{2} + x \\ = {5x}^{2} - {8x}^{2} - 10x + x \\ = - 3 {x}^{2} - 9x \\ = - 3x(x - 3)[/tex]
[tex]3) - (m + n) + 2(m - 3n) \\ = - m - n + 3m - 6n \\ = - m + 2m - n - 6n \\ = m - 7n [/tex]
Hope you could get an idea from here.
Doubt clarification - use comment section.
Related Questions
1 2/5m-3/5(2/3m+1)pls help
Answers
Answer: (10m-3)/5
Step-by-step explanation:
Convert 1 2/5 into an improper fraction
Simplify 5+25+2 to 7
Simplify 2/3m to 2m/3
Simplify 7/5m to 7m/5
Expand and remove the parenthesis
Collect the like terms
Simplify
Factor. 9(p-1)+(p-1)^2
Answers
Answer:
9(−1)+(−1)(−1)Step-by-step explanation:
[tex]9(p-1)+(p-1)^2[/tex]
[tex]p^2+7p-8[/tex]
[tex]=(p-1)(p+8)[/tex]
Answer:[tex](p-1)(p+8)[/tex]Find the equation of the function of the specified type that is the best fit for the given data
Answers
Simplify the linear expression. −4x+5(−5x−1) Enter your answer in the box.
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Answer:
-29x - 5
Step-by-step explanation:
-4x - 25x - 5 = -29x - 5
Answer:
- 29x - 5
Step-by-step explanation:
- 4x + 5(- 5x - 1) ← distribute the parenthesis by 5
= - 4x - 25x - 5 ← collect like terms
= - 29x - 5
help me plssssssssssssss
Answers
multipley by 2, to get the answer
f(x)=x^2-7 and h(x)=7x-5, then f(h(2))= ?
Answers
==================================================
Work Shown:
h(x) = 7x-5
h(2) = 7(2)-5
h(2) = 14-5
h(2) = 9
f(h(2)) = f(9)
f(x) = x^2-7
f(9) = 9^2-7
f(9) = 81-7
f(9) = 74
f(h(2)) = 74
-----------
Here's a slightly alternative approach:
f(x) = x^2 - 7
f(h(x)) = ( h(x) )^2 - 7
f(h(x)) = ( 7x-5 )^2 - 7
f(h(2)) = ( 7*2-5 )^2 - 7
f(h(2)) = ( 14-5 )^2 - 7
f(h(2)) = ( 9 )^2 - 7
f(h(2)) = 81 - 7
f(h(2)) = 74
f(x) = {(1,0),(2,1),(3,-1),(4, -2),(-1,-2)
Find the inverse of the function
Answers
Help help help help help math
Answers
Step-by-step explanation:
don't panic. just breathe and think logically.
why would these angles be different ? how could they be different ?
right : they cannot be different. otherwise the 2 horizontal lines would not be parallel.
so, yes, indeed, these 2 angles are identical.
3x + 2 = 2x + 6
x = 4
that's it.
help , I have like no clue on what I'm doing
Answers
Answer:
Step-by-step explanation:
Linear equations can have the form y = mx + b
where m is the slope of the line and equals Δy/Δx
and b is the y intercept.
Just for fun, let's choose the first and last sets of data points.
Δy = (275 - 135) = 140
Δx = (5 - 1) = 4
so slope m = 140/4 = 35 and the units on the slope would be $/month
Answer:
The slope of the line is 35
Step-by-step explanation:
We'll select [tex](1,135)[/tex] and [tex](2,170)[/tex] for this problem.
The slope is defined as the rate of change. Its formula is [tex]Slope=m=\frac{Rise}{Run}=\frac{y_2-y_1}{x_2-x_1}[/tex] where our two points are [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex].
Therefore, we have [tex]m=\frac{y_2-y_1}{x_2-x_1}=\frac{170-135}{2-1}=\frac{35}{1}=35[/tex] as our slope.
- The width of a rectangle is 4x – 1 feet and the length is 2x + 6 feet. Find the perimeter of the rectangle.
Answers
Answer:
12x + 10 feet
Step-by-step explanation:
Perimeter = 2( length + width)
= 2[ 2x + 6 + (4x -1)]
= 2( 2x + 6 + 4x - 1)
= 2( 6x + 5)
= 12x + 10
Given ABCD, solve for x.
A. 11
B. 13
C. 14
D. 12
Answers
Answer:
Step-by-step explanation:
Because you have a parallelogram, the two angles shown are "same side interior angles" which means they add up to 180°.
We would say that they are supplementary (they add up to 180°)
So add them together and set them equal to 180°
(4x+18) + (8x+30) = 180°
This is all adding, so we dont really need any of these parenthesis.
4x+18+8x+30=180
Add the x terms together and add the constants (plain numbers) together.
12x + 48 = 180
Subtract 48 from both sides of the equation.
12x = 132
Divide both sides by 12
x = 11
Solve the proportion:
11/10 = 22/x
Answers
Answer:
x=20
Step-by-step explanation:
No clue if someone can explain
Answers
Answer:
your trying to find out how much each cookie cost
from looking at this we can see that 2 cookies is 1 dollar so each cookie is 50 cents
Hope This Helps!!!
Quantity is proportional of 40/8
Answers
40/8=5
Solve 3/8+n = 7/8
N =
Answers
Answer:
n = 1/2 or 0.5
Step-by-step explanation:
Answer:
n=1/2
Step-by-step explanation:
To find "n", you need to subtract 3/8 from the left side, and do (7/8)-(3/8)(7/8) - (3/8) = 4/8 = 1/2Therefore, your answer is 1/2, or 0.5How many times do 5 go into 32
Answers
Answer:
6 times or 6.4
6 times
Explanation
32/5 = 6.4
Suppose you receive a shipment of 29 engines, two of which are defective. What is the probability of picking a sample of 4 engines with two bad engines in it? (Round approximations to the nearest thousandth.)
Answers
Answer:
0.4%
Step-by-step explanation:
2 are defective and 27 are good out of 29. Chance of picking 1 defective is 2/29 or .069. Chance of picking good is 27/29 or .931.
2 good and 2 bad is
.931 * .931 * .069 * .069 = .004
There is a 0.4 % chance of 2 bad.
a ratio of two measurements having different units of measure IS ONE
STEP EQUATION
true
false
Answers
The statement that a ratio of two measurements having different units of measure IS ONE is false
Ratios are used to relate measurements of different quantities.
The measures of the quantities may or may not be one (1).
When the second quantity has a measure of one, then the ratio is called a unit rate.
So, the quantities may be one, but it is not a requirement that the measure of one or both quantities be one.
Hence, the statement is false
Read more about ratios at:
https://brainly.com/question/14341008
i really need help, does anyone know these
Answers
Answer: If angle A is congruent to angle E
i need some help, please
Answers
Answer:
i think probably x = 10
Step-by-step explanation:
sin(60°) = 5√3/x
√3/2 = 5 √3/x
√3 x = 10√3
x = 10
4781/32 without a decimal
Answers
Answer:
149(13/32)
Step-by-step explanation:
4781/32 and then take the remainder to make it an improper fraction
1985 x 99 I already know the answer: 196515
Answers
Answer:
the answer is 196515
Step-by-step explanation:
If u already knew the why u put upped the question?
PLZ HELPPPPP QUICKLYYYY!!!!!!!!!!!!!
Answers
Answer:
root 490
Step-by-step explanation:
.....................................................
Answers
Mrs. Montgomery earns a 6.5% commission on her total sales. Last month, she had sales of $55,780. How much commission did Mrs. Montgomery earn last month?
Answers
Answer:
3625.7
Step-by-step explanation:
hope that will help goodbye
What is the slope of the line containing (-3, 1) and (1, -2)?
Answers
Answer:
C is the answer
Step-by-step explanation:
Answer: The answer is C, -3/4.
Explanation: First graph the points, then add the straight line through them and to find the slope you do rise/run, formula being y2-y1/x2-x1. This means putting the second y value minus the first y value and dividing that by the second x value minus the first x value. Then simplify.
A number is between 63 and 68 It has prime factors of 2 and 11 whats the number
Answers
Answer:
66
Step-by-step explanation:
66 is the only number between 63 and 68 that is divisible by both 2 and 11.
66/2=33 66/11=6
Which function is shown in the graph?
Answers
Answer:
k(x)=-3/4x+5
Step-by-step explanation:
Multiply and write the result in Scientific notation
(3 x 10^5) (2 x 10^2)
?
Answers
ratio of boys to girls is 2:3 what is the ratio of boys of there are 6 girls
Answers
Answer:
4:6
Step-by-step explanation:
2 x
- = ----
3 6
6/3 = 2
2 x 2 = 4