Name the type of factoring (DoPS, GCF, Trinomials, factoring by parts, factoring with a leading coefficient)
Answers
Answer:
1) (x - 9)(x + 2) ==> trinomials
2) (s + z) (3m - 2n) ==> factorising by parts
3) (x + 2)(5x + 3) ==> factorising with a leading coefficient
4) 9y²(3y² - 2) ==> GCF
5) (4m - 12)(4m + 12) ==> DoPS
Step-by-step explanation:
1). Find multiples of -18 that add up to -7
Multiples of -18 : (only one number can be negative, because positive*negative = negative)
1, 18 or 3, 6 or 2, 9
Only one pair adds up to -7 which is -9 + 2
Hence ==> (x - 9)(x + 2)
2). Find the common things between the terms and factorise it out
3m(s + z) - 2n(s + z)
Since the terms inside the brackets are the same, you simplify it to:
(s + z) (3m - 2n)
3). Multiply the first coefficient with the last coefficient: 5(6) = 30
Find two numbers that multiply to 30 and add up to the middle coefficient -13.
Multiples of 30 are: 1, 30 or 2, 15 or 3, 10 or 5,6, but only one pair would add to -13 and that is 3 and 10
So the next step is to write it in this form: 5x² + 10x + 3x + 6
Factorise: 5x(x + 2) + 3(x + 2)
(x + 2)(5x + 3)
4). Find the greatest common factor within 27y⁴ and 18y², which is 9y²
9y²(3y² - 2)
5). Square root each number: √16 = 4 and √144 = 12
(4m - 12)(4m + 12)
Related Questions
Samantha and Henry are planting flowers and they decided that for every 5 tulips, they would like to plant 3 daisies. They need to plant 24 flowers to fill the garden. What number do they need to put into this tape diagram to get a total of 24 flowers?
Answers
Answer:
yw
Step-by-step explanation:
i dont get it
Answer:
Samantha and Henry are would need to plant 15 tulips and 9 daises.
or 3 sets.
Simplify.
(8) = 81
DONE
Answers
Answer:
What are we supposed to simplify? 8/81?
Step-by-step explanation:
Solve -11h − 27 ≤ 16h for h.
Answers
The Answer:
[tex]h \geqslant - \frac{27}{17} [/tex]
Answer:
h ≥ -1
Step-by-step explanation:
i took a quiz and got it right
hope this helps :)
Find the x and y intercept of the following equation. 10x - 3y = 9
Answers
Answer:
x-intercept= ( 0.9, 0)
y-intercept= (0,-3)
Step-by-step explanation:
Graph out the equation and look for the x and y intercept.
Colleen is selling tubs of popcorn to raise money for the school choir. Her goal is to raise $150. Colleen starts with 40 tubs of popcorn, and she has already sold
3/4 of them. If each tub of popcorn sells for $3.75, how much more money does Colleen need to raise to reach her goal?
Answers
Colleen needs to raise $37.5 to reach her goal.
What is the arithmetic operation?In mathematics, the arithmetic operation has four main operators such as addition, subtraction, multiplication, and division.
The symbol of + represents addition.
The symbol of - represents subtraction
The symbol of × represents multiplication
The symbol of ÷ represents division.
The goal of Collen is 40 tubs.
3/4 of 40 = 30 tubs.
Money for 30 tubs
⇒ 30 × 3.75 = $112.5
She needs
$150 - $112.5 = $37.5
Hence " Colleen needs to raise $37.5 to reach her goal".
To learn more about the arithmetic operators,
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An iron rod of length 25cm weighs 196.5g.What will be the weight of an iron rod of length 1.6m?
Answers
Answer:
1257.6 g
Step-by-step explanation:
1 m = 100 cm
1.6 m = 1.6 * 100 cm = 160 cm
Use a proportion.
196.5/25 = x/160
25x = 196.5 * 160
25x = 31,440
x = 1,257.6
Answer: 1257.6 g
In the diagram, GB = 2x + 3..
Triangle F D E has centroid G. Lines are drawn from each point to the midpoint of the opposite side to form line segments F A, D C, E B. The length of line segment F G is 5 x and the length of line segment G A is x + 9.
What is GB?
5 units
10 units
15 units
30 units
Answers
Answer:
C) 15 units
Step-by-step explanation:
just got it right on edge
Answer:
c 15 units
Step-by-step explanation:
pls help
A group of 8 people are picking up litter along a 4/5 km length of road. Each person is assigned an equal section of the road. How can you divide 4/5 km among 8 people?
Which expression is equivalent to 4/5÷ 8?
(4/10, 4/8 8/10, 8/5) ÷ 8
Each person picks up litter from a (1/10 2/5 4/5) km length of the road.
Answers
Answer:
A group of 8 people are picking up litter along a 4
5
km length of road. Each person is assigned an equal section of the road. How can you divide 4
5
km among 8 people?
Which expression is equivalent to 4
5
÷ 8?
✔ 8/10
÷ 8
Each person picks up litter from a
✔ 1/10
km length of the road.v
Step-by-step explanation:
Select all the pairs that could be reasonable approximations for the diameter and circumference of a circle. * 1 point A. 5 meters and 22 meters. B. 19 inches and 60 inches. C. 33 centimeters and 80 centimeters.
Answers
Answer:
B. 19 inches and 60 inches.
Step-by-step explanation:
Required
Select matching pairs
Represent diameter with D and Circumference with C
C is calculated as:
[tex]C = \pi D[/tex]
Where
[tex]\pi = 3.142[/tex]
A. D = 5m; C = 22m
Using: [tex]C = \pi D[/tex]
[tex]C = 3.142 * 5[/tex]
[tex]C = 15.71[/tex]
15.71 does not approximates to 22m.
Hence, the pair do not match
B. D = 19 in; C = 60 in
Using: [tex]C = \pi D[/tex]
[tex]C = 3.142 * 19[/tex]
[tex]C = 59.698[/tex]
59.698 approximates to 60.
Hence, the pair match
C. D = 33 cm; D = 80 cm.
Using: [tex]C = \pi D[/tex]
[tex]C =3.142 * 33[/tex]
[tex]C =103.686[/tex]
103.686 does not approximates to 22m.
Hence, the pair do not match
From the analysis above, only option B matches the diameter with the circumference
Determine x for the problem
Answers
Answer:
Step-by-step explanation:
2d^5(3d)^x=162d^9
I would assume x is 4 since the ending power is 9. When you multiply powers you add them.
Question 1
(04.03 LC)
Which of the following options is an equivalent function to f(x) = 2(5)2X? (2 points)
a. f(x) = 50x
b. f(x) = 100x
c. f(x) = 2(25)
d. f(x) = 4(25)
Answers
Answer:
C is the correct answer
Answer:
the correct answer will be
c. f(x) = 2(25)^x
Step-by-step explanation:
is my answer correct??
Answers
Answer:
no
Step-by-step explanation:
Answer:
you are correct!!
Step-by-step explanation:
Math help pleaseeeeeee
Answers
Answer:
c
Step-by-step explanation:
can someone solve for b please
Answers
what are the x and y intercepts of the function f(x)=x/x^2-3x
Answers
Answer:x and x2
Step-by-step explanation:
help plzzz I'm almost done
Answers
Step-by-step explanation:
7 and 4 are solutions the others not
Which of the following is an arithmetic sequence with common difference 2
Answers
Answer:
D
Step-by-step explanation:
The arithmetic sequence with a common difference of 2 is 13,15,17,19. The correct option is D.
What is an arithmetic progression?The sequence in which every next number is the addition of the constant quantity in the series is termed as the arithmetic progression.
A number series is a number-based sequence. In the number series questions, we must identify the rules that lead to the formation of a number series.
The common difference is equal to 2. The arithmetic sequence will be written as,
13,15,17,19
Therefore, the arithmetic sequence with a common difference of 2 is 13,15,17,19. The correct option is D.
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Bernard ate part of a small pizza. He started with StartFraction 11 Over 12 EndFraction of a pizza but only ate Two-thirds of it. Which is the best estimate of the amount Bernard ate?
A. Bernard ate a little less than One-half of the pizza.
B. Bernard ate a little more than One-half of the pizza.
C. Bernard ate a little less than Two-thirds of the pizza.
D. Bernard ate a little more than Two-thirds of the pizza.
Answers
Answer:
b
Step-by-step explanation:
* In your math class there are 2 boys for every 3 girls. Which of the following could be the ratio of boys to girls in the class? *
Answers
Answer:
the ratio is 2 to 3
Answer:
well if you had bigger number you would divide but you cant here it would stay the same
Step-by-step explanation: Hope this helps
What is the median of the follow 6 scores ? 64 , 72, 85 , 80 , 72 , 89
Answers
Answer:
76
Step-by-step explanation:
median is the number in the very center of the list of numbers in order:
64, 72, 72, 80, 85, 89
to find the one in the middle we take away the numbers from both ends:
72, 72, 80, 85
72, 80
since there are two numbers in the middle we’ll find the average
(72+80)/2
152/2
76
Answer:
76
Step-by-step explanation:
Median means middle
so we are looking for the middle number
place the numbers in order and look for the number thats in the middle
64, 72, 72, 80, 85, 89
72 and 80 are both the middle numbers.
Therefore, we add 72+80 and then divide by 2
72+80= 152
152/2= 76
Final answer: 76 is the median
Please help I will mark Brainiest
Answers
Answer:
The rate of change is the slope
slope = 72/6 = 12
(0, 0) means zero pages have been printed in 0 minutes
(6, 72) means there have been 72 pages printed in 6 minutes
Step-by-step explanation:
The rate of change is the slope
slope = 72/6 = 12
(0, 0) means zero pages have been printed in 0 minutes
(6, 72) means there have been 72 pages printed in 6 minutes
I need help please, please help me it done tomorrow
Answers
7. False
Step by step:
Answer:
Step-by-step explanation:
6). 8 - x ≥ 3 ; x = 2
8 - 2 ≥ 3
6 ≥ 3 ( true) ⇒ Yes, x = 2 is the solution.
7). 15 ≤ 4w ; w = 3
15 ≤ 4(3)
15 ≤ 12 (false) ⇒ NO, w = 3 is not a solution.
is triangle MLK similar to Triangle GEF
Answers
Answer:
Step-by-step explanation:
ΔMLK and ΔGEF are not similar.
[tex]\frac{ML}{GE}[/tex] ≠ [tex]\frac{MK}{GF}[/tex]
Sophia bakes 120 cookies in 6 hours. If she bakes the
same number of cookies every hour, how many does she
bake in 2 hours?
Answers
Answer:
40 cookies
Step-by-step explanation: She would bake 40 cookies in 2 hours because, if she baked 120 in 6 hours it would be like 6 + 6 = 12 but add the zero so yea
Find the slope of the line with points (-1,-2) (2,7)
Answers
Answer:
3
Step-by-step explanation:
You may use this formula to find the slope of a line going through points [tex](x_1,y_1) \text{ and } (x_2,y_2)[/tex]:
[tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
Notice the numerator is just a subtraction of the y's while the denominator is a subtraction of the x's. The order you choose your y's on top will matter to how you subtract the x's.
You could just line up the points and remember that the y difference goes on top and the x difference goes on bottom.
This is my favorite way.
(-1 , -2)
minus
(2 , 7)
---------
-3 -9
The slope is -9/-3 or 3.
You could do it the other way:
(2 , 7)
minus
(-1 , -2)
--------------
3 9
The slope is 9/3 or 3.
A laundry mat can clean five shirts in 20 minutes. What is the rate of shirts per hour?
Answers
Answer:
15 shirts in one hour
Step-by-step explanation:
there are 60 minutes in an hour, 20 times 3 is 60, 5 times 3 is 15
20 secs : 2 mins ratios
Answers
Answer:
HAHAHAAHAAHHAHAHA
Step-by-step explanation:
NBBBbahahahhahahahahahahahahaa
4y - 7 = 5x2 - x + 2 + 3y
Quadratic Equations
Options are No, One, Two.
I don't remember learning how to do it with more than a, b, and c variable. I'm so confused please help.
Answers
Answer:
y = 9 + -1x + 5x2
Step-by-step explanation:
Simplifying
4y + -7 = 5x2 + -1x + 2 + 3y
Reorder the terms:
-7 + 4y = 5x2 + -1x + 2 + 3y
Reorder the terms:
-7 + 4y = 2 + -1x + 5x2 + 3y
Solving
-7 + 4y = 2 + -1x + 5x2 + 3y
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Add '-3y' to each side of the equation.
-7 + 4y + -3y = 2 + -1x + 5x2 + 3y + -3y
Combine like terms: 4y + -3y = 1y
-7 + 1y = 2 + -1x + 5x2 + 3y + -3y
Combine like terms: 3y + -3y = 0
-7 + 1y = 2 + -1x + 5x2 + 0
-7 + 1y = 2 + -1x + 5x2
Add '7' to each side of the equation.
-7 + 7 + 1y = 2 + -1x + 7 + 5x2
Combine like terms: -7 + 7 = 0
0 + 1y = 2 + -1x + 7 + 5x2
1y = 2 + -1x + 7 + 5x2
Reorder the terms:
1y = 2 + 7 + -1x + 5x2
Combine like terms: 2 + 7 = 9
1y = 9 + -1x + 5x2
Divide each side by '1'.
y = 9 + -1x + 5x2
Simplifying
y = 9 + -1x + 5x2
What is the surface area of the cylinder?
175π ft2
224π ft2
273π ft2
126π ft2
Answers
Step-by-step explanation:
A=2πrh+2πr2 ans for 1 one
Diane walks 5 , 000 steps each day for exercise. Over the next year, her goal is to increase the number of steps she walks each day by 10 . Let f ( x ) represent the number of steps Diane plans to walk on day x since beginning her goal. What does f ( 100 ) = 6 , 000 represent? Select from the drop-down menus to correctly complete the sentence. Diane plans to walk steps on day since beginning her goal.
Answers
Answer:
Diane plans to walk [6,000] steps on day [100] since beginning her goal.
Step-by-step explanation:
10 x 100 = 1,000
5,000 + 1,000 = 6,000
100 days after adding 10 steps each day results in 6,000 steps
