Answers
Answer:
x⁴ - 11x² + 28
= x⁴ - 4x² - 7x² + 28
= x²(x² - 4) - 7(x² - 4)
= (x² - 7)(x² - 4)
[tex] = (x - \sqrt{7} )(x + \sqrt{7} )(x - 2)(x + 2)[/tex]
x^4 - 11x^2 + 28
Write - 11x^2 as a difference
x^4 - 4x^2 - 7x^2 + 28
Factor out x^2 from the expression
x^2 x (x^2 - 4) - 7x^2 + 28
Factor out - 7 from the expression
x^2 x (x^2 - 4) - 7 (x^2 - 4)
Factor out x^2 - 4 from the expression
(x^2 - 4) x (x^2 - 7)
Use a^2 - b^2= (a-b)(a+b) to factor the expression
(x-2) x (x + 2) x (x^2 - 7)
And that’s how it’s (x-2) x (x + 2) x (x^2 - 7) ..... yea and .-.
Related Questions
how do you solve this 1 1/4 + 1 1/2
Answers
Answer:
your answer for 11/4+11/2 would be 8.25
Step-by-step explanation:
Answer:
1 1/4 + 1 1/2 = 2 3/4
Step-by-step explanation:
first do 1/4 plus 1/2 to solve that you need the same denominator. To get the same denominator you have to see which number they both go into equally, 4 goes into 4 once and 2 goes into 4 twice, meaning you can make both denominators 4. 2 * 2 = 4 and if you do something to the denominator you have to do it to the numerator, so 1/2 would become 2/4. 1/4 plus 2/4 is 3/4. now move onto the whole numbers 1+1=2. so, the answer must be
2 3/4. hope this helps
An aquarium holds 4 gallons of water. Every fish needs 1 1/3 gallons of water. How many fish can be placed in the aquarium?
Answers
Answer:
3 fish
Step-by-step explanation:
4g / 4/3 fish
4/1 ÷ 4/3 = 4/1 · 3/4 = 3
A rectangle is 15 cm wide and 18 cm long. If both dimensions are
decreased by the same amount, the area of the new rectangle formed is
116 cm less than the area of the original. Find the dimensions of the
new rectangle
Answers
Answer:
not 100percent sure but found this online 11 cm x 14 cm
Step-by-step explanation:
Write an Equation using the following arithmetic sequence: 24, 18, 12,..
Answers
Answer:
6n
Step-by-step explanation:
NEED ASAP
The pair of angles 135 and 45 are:
A) Complementary
B) Supplementary
C) Neither
Answers
Answer:
Supplementary
Step-by-step explanation:
135+45 =180
So Option C
Sam took his savings to the bank and deposited them in a Certificate of Deposit (CD) account. He was told that he would collect the full interest in 260 weeks. How many years would Sam have to wait to collect the full interest
Answers
Answer:
5
Step-by-step explanation:
260 weeks divided by however many weeks in a year which is 365÷7 which is 52.14 so it would be rounded to 52
260÷52⇒5
Evaluate each expression if: k = 2, m = 7, n = 4.
1) 6m - 3k 2)
23) m + |2m - kl
Answers
= 6(7) - 3 (2)²
= 42 - 3(4)
= 42 - 12
= 30
m + | 2m-k|
7 + | 2(7) - 2|
7 + | 14-2|
7 + 12
= 19
There is a bag with 10 balls inside it. 2 are footballs, 3 are soccer balls, 1 is a soittall, 2 are baseballs, and 2 ore basketballs, you were to reach in and grab one ball, what is the probability that it is a basketball or soccer ball? P(basketball or soccer ball)
Answers
Answer:
5/10, 1/2, 50% and 0.5 are all correct answers in different forms.
Step-by-step explanation:
5 of the balls are basketballs or soccer balls. This is 5/10 of the balls.
Diego measured the length of a pen to be 21 cm. The actual length of the pen is 23 cm. Which of these is closest to the percent error for Diego’s measurement?
A. 9.5%
B. 8.7%
C. 91.3%
D. 109.5%
Answers
Simple math true and false. not that hard. 11th grade math though
Answers
Answer:
True
good luck, hope this helps :))
Answer:
True
Step-by-step explanation:
Pretty sure comrade. Also let me know if not right. Hope this helps
Find the sum of 3876, 9828 and 5030
Answers
3876+9828+5030= 18734
Answer:
18,734
Step-by-step explanation:
just add them all
3876
9828
+ 5030
---------
18,734
Solve the following equation : -3(x + 15) + 4 - 5x = 2 + 10x - 7.
Answers
Answer:
Step-by-step explanation:
-3x - 45 + 4 - 5x = 10x - 5
-8x - 41 = 10x - 5
-18x = 36
x= -2
Work out the mean.
1, 3, 3. 4. 6, 9, 9
Answers
7 numbers so divide by 7
35/7 = 5
Mean is 5
An account is gaining value at a rate of 4.94% per year. The
account held $113 in 2005. What will the bank account hold
in 2017?
O y = $61.53
O y = $201.54
O y = $0.03
O y = $13.972.87
Answers
please answer this ill give brainliest
Answers
Answer:
C. 5, because I-5I =5
Have a beautiful day!
How many ounces of coffee can be bought for $1.11 if 2 pounds of coffee costs $5.92
Answers
Answer:
6 Ounces!
Step-by-step explanation:
$ 5.92 you get 2 pounds
1.11 you will get 2*1.11/5.92
= 0.375 pounds
1 pound = 16 ounzes
0.375 pounds = 16*0.375
= 6 ounces
Hope I helped !
The 6 ounces of coffee you can buy for $1.11 if 2 pounds of coffee costs $5.92 the answer is 6 ounces.
What is a fraction?Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.
It is given that:
2 pounds of coffee costs $5.92
Let x be the amount of coffee you get in $1.11
The proportion will be equal:
2/x = 5.92/1.11
To get the value of x,
On cross multiplication:
2×1.11 = 5.92x
5.92x = 2.22
x = 2.22/5.92
x = 0.375 pounds
As we know,
1 pound = 16 ounces
0.375 pounds = y ounces
y = 16x0.375
y = 6 ounces
Thus, the 6 ounces of coffee you can buy for $1.11 if 2 pounds of coffee costs $5.92 the answer is 6 ounces.
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Please guys help because I don't. know it
Answers
Answer:
-7/4 sign will be -
-7/2 sign will be -
11/-4 sign will be -
-0,5/-7 sign will be +
18/37 sign will be +
(-3)*(-5)/2*(-7) sign will be -
(-4)*3/(-7)*(-5) sign will be -
-3*5/4*8 sign will be -
anyone that’s smart enough pls helpppp
Answers
Answer:
The slope is m=0
Step-by-step explanation:
The line is Horizontal.
A garden table and a bench cost $978 combined. The garden table costs $78 more than the bench. What is the cost of the bench?
Answers
Answer:
$411
Step-by-step explanation:
I divided 978 by 2 and then subtracted 78 to get the bench's price.
Bench price: $411
Garden table price: $567
What would be the volume of Carlo’s building block? Please help if can!
Answers
Answer:
b) 490 cm^3
Step-by-step explanation:
large portion block = 10x6x7 = 420
small portion block = 2x5x7 = 70
420+70 = 490 cm^3
I need an answer for "−12x+y=10"
Answers
Answer:
If you need slope intercept, y = 12x + 10
i hope this helps
Can anybody help me on these 2 problems.
Answers
Answer:
15. 1800
16. 18759
Step-by-step explanation:
216 * 5 = (200 + 10 + 6) * 5 = 200 * 5 + 10 * 5 + 6 *5 = 1000 + 50 +30 = 1800
6,253 * 3 = (6000 + 200 + 50 + 3) * 3 = 18000 + 600 + 150 +9 = 18600 + 150 +9 = 18750 + 9 = 18759
answer the one in the screenshot
pls male it all correct
or i will report u
Answers
Answer:
21. yes 22. yes 23: no 24:no 25:yes
EZ
What is the area of this parallelogram?
364 cm²
143 cm²
91 cm²
52 cm²
Answers
Answer:
which parellogram
Step-by-step explanation:
where is photo
Answer:
143cm2
Step-by-step explanation:
I did the quiz :> (K12)
2. The Biology club budgeted $200 for their pancake breakfast. Each meal costs $1.50 to prepare. Write an inequality that represents the number of meals that can be prepared without going over budget. What is the maximum number of meals that the biology club can prepare for $200?
Answers
Answer:
$1.00
Step-by-step explanation:
a) Draw the graph of y = 4x - 1
on the grid.
o
b) Use the graph to estimate the
value of x when y = 1
Answers
a) The graph of y = 4x - 1 is shown in attached image.
b) By using the graph at y = 1 the value of x is 1/2.
What is Linear expression?
A linear expression is an algebraic statement where each term is either a constant or a variable raised to the first power.
Given that;
The function is,
y = 4x - 1
Now, The graph of function y = 4x - 1 is shown in image.
And, At y = 1;
By the graph the value of x = 1/2.
And, In mathematically;
At y = 1
The value of x is;
y = 4x - 1
1 = 4x - 1
4x = 2
x = 2/4
x = 1/2
Thus,
a) The graph of y = 4x - 1 is shown in attached image.
b) By using the graph at y = 1 the value of x is 1/2.
Learn more about the linear expression visit:
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Carissa leaves a 20% tip at her favorite restaurant. her bill is 32$. what tip should she leave? (Type the answer as $ amount).
Answers
Answer:
Step-by-step explanation:
20% of 32 is 6.4
Help Please Right now
At a carnival booth, customers had to guess the number of jelly beans in a jar. Samantha guessed there were 375 jelly beans. The actual amount of jelly beans in the jar was 250. What is Samantha's percent error?
Answers
Answer:
150
Step-by-step explanation:
The required percent error by Samantha is 50%, as of the given condition,
What is the percentage?The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.
What is the error?Errors are discrepancies between values that are seen and natural truths.
Here,
Samantha guessed there were 375 jelly beans.
The actual amount of jelly beans in the jar was 250.
Error percentage = 375-250 / 250 × 100
= 0.5 × 100
= 50%
Thus, the required percent error by Samantha is 50%, as of the given condition.
Learn more about percentages here:
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Determine whether (3,2) is a solution of y = 3x +2.
Answers
Answer:
This point is not a solution to the equivalence
Step-by-step explanation:
Becouse if we put x= 3 then y= 11
[tex]y = 3 \times 3 + 2 = 11[/tex]
Help Asap pls will give brainlest ONLY IF CORRECT
Given the following functions f(x) and g(x), solve f[g(6)] and select the corr
f(x) = 6x + 12
g(x) = x - 8
1. -96
2. 0
3. 24
4. 48
Answers
2. 0
Explanation:
Solve f[g(6)] by finding f(x) when x = g(6).
Find g(6).
g(x) = x - 8
Set x = 6.
g(6) = 6 - 8
g(6) = -2
Find f[g(6)].
f(x) = 6x + 12
Set x = g(6).
f[g(6)] = 6[g(6)] + 12
Substitute g(6) = -2.
f(-2) = 6(-2) + 12
f(-2) = -12 + 12
f(-2) = 0
Therefore, f[g(6)] is 0.
Answer:
2. 0 or B. 0
Step-by-step explanation:
First you need to find g(6) which is -2 now plug in -2 into the function f. So 6(-2)+12=0