Mathematics High School

Factor [tex]x^{4} -8x^{2} -9[/tex]

Answers

Answer 1

Answer:

[tex](x^2+1)(x-3)(x+3)[/tex]

Step-by-step explanation:

x^2^2 - 9x^2 + 1x^2 - 9

= x^2(x^2 - 9) + 1(x^2 - 9)

= (x^2 + 1)(x^2 - 9)

= (x^2 + 1)(x-3)(x+3) <- (This is due to the a^2-b^2 theorem)

Hope this helps and be sure to have a wonderful time ahead at Brainly! :D

Related Questions


PLEASE HELP ME IT WILL MEAN A LOT TO ME

Answers

Answer:

Alex spends more time in his homework.

Step-by-step explanation:

To make it easier to compare their homework time on math, convert 2/5 into a percentage: Divide the numerator by the denominator:

Darius: 35%

Alex:  2/5 = 0.40 × 100 = 40%

Seeing both percentages make it easier to determine that Alex spends more time in his homework than Darius.

Answer:

Alex spends more time doing math homework. 2/5 is equal to 4/10 and 4/10 as a decimal is 0.4 which is 40%. 40% is greater than 35% so Alex spends more time than Darius doing math homework.

Hope this helps!

Pls gi brainliest!

an army commander wishing to arrange his soldiers, who were 8289 in number in the form of a square found that there were 8 soldiers left over. how many soldiers were there in each row?​

Answers

Answer:

The answer to your question is 91

Step-by-step explanation:

8289-8=8281 then square of the number is 91 and 91 is soldiers in each row

Total no of soldiers=8289

number of soldiers left out=8

√8281=91

I hope this helps!

Marie is reading a 271-page book. She has already read 119 pages. If she reads
at about 8 pages per hour, how long will it take her to finish the book?
Which equation helps to solve this problem?

Answers

Answer:

119+8h=271

Step-by-step explanation:

We already know she has read 119 pages out of 271. And we know the constant proportionality in this is 8 pages every hour. If we were able to find out how long it took for her, then we would add that with 119, because that, in total, will be 271/the whole book, with 152 pages of it in hours.

sorry if this doesn't make sense, if you want me to explain more on it go ahead and ask!

11 4
--- x ---
20 14

Answers

Answer:

11. 4

_ X _

20. 14

Step-by-step explanation:

Multiply the numerator

11 X 4= 44

Multiply the denominator

20 X 14= 280

Then, division to the lowest term

44 X 280 = 6

hope it's helpful

pa brainlest po

Leslie drank 51 ounces of water in 6 hours. At this rate, how much water did Leslie drink in one hour?

Answers

Answer:

She drank 10.67 oz in one hour.

Step-by-step explanation:

You would multiply the total oz of water drank by the hours.

51 ÷ 6 = 10.6666...

Then you would round it up to 10.67.

Answer:

The correct answer is 8.5 ounces in the matter of one hour

Step-by-step explanation:

To get this answer you will need to use division.

Divide 51 with 6

51 divided by 6 will be 8.5 as a decimal

Therefore the correct answer is 8.5

In which was being drank in the matter of one hour

9.6 + 7.9u − 0.16 = –9.31 − 4.6u?

Answers

Answer:

u = -1.5

9.6 + 7.9(-1.5) − 0.16 = –9.31 − 4.6(-1.5)

-2.41 = -2.41

Step-by-step explanation:

I used a calculator, pls let me know if im incorrect

PLS HELP WILL MARK BRAINLIEST, NO FAKE ANSWERS!

Answers

Answer:

its B mark me brainliest plz

a. T = 1000 + m

(Where T is total earned and m is Mitch’s wages.)

b. E = (1/2)m

c. R = 2 (1000+m)

Write a system of equations to describe the situation below, solve using substitution, and fill
in the blanks.
Tamir and his little sister are saving up money to buy a joint birthday present for their
mother. Tamir already has $11 saved and plans to save $15 per week from his allowance. His
sister has $19 saved so far and will save $7 per week from hers. The two siblings will soon
have saved the same amount towards their mother's gift. How much will each one have
saved? How long will that take?
Tamir and his sister will each have saved $
in
weeks.

Answers

Answer:

X = 1 week

Each will have $ 26 in 1 week

Step-by-step explanation:

Tamar: y = 15x + 11

Sister: y = 7x + 19

15x + 11 = 7x + 19

15x - 7x = 19 - 11

8x = 8

x = 8/8

15(1) + 11 = 26

2(3x-5y)+3(x^(2)-4y) for x=3, y=-5

Answers

Answer:

-38

Step-by-step explanation:

this is the answer

brainlist please

2(3x-54) +3(x-44)
2(3(3)-5(-5))+3(3^2-4(-5))
2(9+25)+3(9+20）
2(34)+3(29)
68+87
155

Suppose that Y and Z are points on the number line.
If YZ=4 and Y lies at - 12, where could Z be located?

If there is more than one location, separate them with commas.

Answers

Answer:

subtract or add 4 to -12 to find the answer

Answer:

z = - 16 , - 8

Step-by-step explanation:

4 units from - 12 is - 16 or - 8 , since

| - 16 - (- 12) | = | - 16 + 12 | = | - 4 | = 4

| - 8 - (- 12) | = | - 8 + 12 | = | 4 | = 4

Can someone please help ASAP marking brainliest

Answers

Answer:

99 degrees

Step-by-step explanation:

The two angles are equal because the lines are parallel and vertical angles are congruent.

x = 81

What’s the answer help someone

Answers

Answer:

13×10/5×3= 130/15= 26/3=8.6

Step-by-step explanation:

13 multiplies 10 and 5 multiplies 3 after it gets divided

multiply the given fraction write your answer in your notebook. 3/4 times 1/2

Answers

Answer:  3/8

Step-by-step explanation:

3  .  1    =  3 x 1     =   3

4     2         4 x 2           8

Plsss help:p

x+2=x+8

Answers

Answer:

no solution

Step-by-step explanation:

x+2=x+8

Subtract x from each side

x+2-x = x+8-x

2 = 8

This is never true so there is no solution

Answer:

x+2=x+8

x+2-2=x+8-2

x=x+6

x-x=x+6-x

0=6

Step-by-step explanation:

What is the smallest distance between the origin and a point on the graph of:y=1/sqrt(2)*(x^2-8)

Answers

What we are being asked here is to simply minimize distance. Also, note that we can write
f
(
x
)
=
√
x
as
y
=
√
x
.
Now, what is this "distance?" How do we find it? Well, if you think back to Algebra I or Geometry, you'll remember that the distance between two points
(
x
1
,
y
1
)
and
(
x
2
,
y
2
)
is given by:
√
(
y
2
−
y
1
)
2
+
(
x
2
−
x
1
)
2
. For example, the distance between the points
(
4
,
0
)
and
(
0
,
3
)
would be:
√
(
3
−
0
)
2
+
(
4
−
0
)
2
=
√
9
+
16
=
√
25
=
5
Ok, so what is
(
x
1
,
y
1
)
and
(
x
2
,
y
2
)
in our example?
(
x
1
,
y
1
)
is simple - it's just the point given in the problem,
(
4
,
0
)
. Because we don't know what
x
2
is, we'll just call it
x
for now. As for
y
2
, we don't know that either; and since
y
=
√
x
, we'll call it
√
x
.
Our formula then becomes:
√
(
√
x
−
0
)
2
+
(
x
−
4
)
2
=
√
(
√
x
2
)
+
x
2
−
8
x
+
16
=
√
x
+
x
2
−
8
x
+
16
=
√
x
2
−
7
x
+
16
We are being asked to minimize this distance, which we'll call
s
to make the following calculations easier. To minimize something, we have to take its derivative, so let's start there:
s
=
√
x
2
−
7
x
+
16
=
(
x
2
−
7
x
+
16
)
1
2

d
s
d
x
=
(
2
x
−
7
)
⋅
1
2
(
x
2
−
7
x
+
16
)
1
2
→
Using power rule and chain rule
d
s
d
x
=
2
x
−
7
2
√
x
2
−
7
x
+
16
Now we set this equal to
0
and solve for
x
:
0
=
2
x
−
7
2
√
x
2
−
7
x
+
16
0
=
2
x
−
7
x
=
7
2
This is known as the critical value, and it represents the
x
-value for which the function is minimized. All we need to do now is find the corresponding
y
-value, using the definition of
y
:
y
=
√
x
. Substituing
7
2
for
x
:
y
=
√
7
2

y
≈
1.87
And voila, the
y
-value. We can now say that the minimum distance between
f
(
x
)
=
√
x
and the point
(
4
,
0
)
(the place where these two are closest) occurs at
(
7
2
,
1.87
)
. For a little extra fun, we can use the distance formula to see what the actual distance between the points is:
s
=
√
(
1.87
−
0
)
2
+
(
7
2
−
4
)
2
≈
1.8
units

PLS HELP ASAP I WILL GIVE BRAINLIEST

Answers

Answer:

1331

Step-by-step explanation:

(w + x + y)^3(-2 + 5 + 8)^3(3+8)^3(11)^311 · 11 · 11121 · 11 1331

Therefore, the answer is 1331.

(-2+5+8)^3

(11)^3

1331

Find the measure of the missing angles.
26°
yº
x°

Answers

Answer:

y = 90

x = 64

Step-by-step explanation:

y is 90 because of right angle

if add 26 + 90 = 116 -> 180 (angle of straight line) - 116 = 64 which is angle of angle to left of y and therefore x bc opposite angles equal each other

or even if you saw the line that includes x, 26, and y, x is still 64

also, the other angle that is blank should be 26+y (if our calculations are correct) so it would be 116 -> and if we add up everything we should get 360 so, x/64 + 26 + y/90 + blank angle/64 + 116 = 360 -> all correct!

5n + 34 = -2 ( 1 - 7n)
this is due by midnight.

NO LINKS PLEASE!

Answers

Answer :

n = 4

Step-by-step explanation:

5n + 34 = -2(1-7n)

first distribute

5n + 34 = -2(1) -2(-7n)

5n + 34 = -2+14n

-5n

+2

then get all of n to the same side

36 = 9n

isolate the variable

36/9 = 9n/9

4 = n

Answer:

n=4

Step-by-step explanation:

Hi there!

We are given the following equation:

5n + 34 = -2(1-7n)

And we want to solve it for n

To do that, we want to isolate n (also written as 1n) on on side by itself.

In this equation, on the right side, we have -2(1-7n), which is in the way. We'll need to open it up.

In order to open up the parenthesis, we'll need to do the distributive property, where we will multiply -2 to both 1 and -7n, then add them together.

-2(1-7n)=-2+14n

That's for the right side.

The equation now looks like this:

5n + 34 = -2 + 14n

Remember that we will be trying to isolate n on one side

Subtract 5n from both sides to remove it from the left side:

5n + 34 = -2 + 14n

-5n                  -5n

__________________

34 = -2 + 9n

Add 2 to both sides to remove it from the right side:

34 = -2 + 9n

+2    +2

______________

36 = 9n

Now, we have numbers on one side and variables on the other, but we're not done yet, since remember; we want just n (or 1n), not 9n. We need to divide both sides by a number that will result in 1n

If we divide a number by itself, then the result is 1

So we should divide both sides by 9

4 = 1n, also written as 4=n , or n=4

Hope this helps!

In the college class, there were 15 students that came to the review class before the test. This was 30% of the students in class. How many students were in the class, altogether?

Answers

Answer:

30 students

Step-by-step explanation:

The 15 students that came were 30% of the class:

30% = 15 students

To find 100%, we can first find 10% by dividing both sides by 3

10% = 3 students

(30% ÷ 3 = 10%, 15 ÷ 3 = 5)

Then, multiply both sides by 10 to get 100%

100% = 30 students

(10% × 10 = 100, 3 × 10 = 30)

From the fig. find the angle which is equal to 110˚. *
1 point

∠A
∠C
∠D
none of the above

Answers

Answer:

∠C is equal to 110⁰ (alternate interior angles)

Step-by-step explanation:

Pls mark as brainliest

C! They are alternate interior angles :)

53x-9 divided by 7.6x

how do u do this aaaa

Answers

Answer:

53x−1.18421052/x

Step-by-step explanation:

Pounds of Apples
Total Cost (8
The table shows a relationship between the number of pounds of apples and
the total cost. Is the relationship proportional?
4
12
24
A No, because the total cost changes from one row to the next.
B No, because some possible numbers of pounds are not listed.
Yes, because the cost is always three times the number of pounds.
D
Yes, because each number of pounds is double the number before it in the table.

Answers

Answer:

yes it is

Step-by-step explanation:

please mark brainiest

Evaluate the expression −t/u+vw , where t = 2, u=−2/3 , v=−1 , and w=−1/3 .3 1/31 2/3−2 2/3

Answers

Answer:

The answer is 3 1/3

The value of the expression  −t/u+vw is 3 1/3 after pluggin the values of t, u, v, and w in the expression.

What is an expression?

It is defined as the combination of constants and variables with mathematical operators.

It is given that,

The expression is:

= −t/u+vw

The values of t = 2, u=−2/3 , v=−1 , and w=−1/3

After pluggin the values of t, u, v, and w in the above expression we get:

= -2/(-2/3) + (-1)(-1/3)

The arithmetic operation can be defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that is +, -, ×, and ÷.

= 3 + 1/3

= 3 1/3 (in mixed fraction)

Thus, the value of the expression  −t/u+vw is 3 1/3 after pluggin the values of t, u, v, and w in the expression.

Learn more about the expression here:

brainly.com/question/14083225

#SPJ2

3 1/3

Mr. Rudman speed walked 2 miles in 10 minutes, what is his speed?

0.2 miles/min
2 miles/min
20 miles/min
40 miles/min

Helppp pleaseee

Answers

Answer:

0.2 miles/min

Step-by-step explanation:

Divide 2 by 10:

2/10= 0.2

Hope this helps! :)

I don’t remember how do to any of them

Answers

Answer:

[tex]12x+9[/tex] and [tex]99[/tex]° are supplementary to each other.

Step-by-step explanation:

Supplementary means that two angles added together make 180°.

Looking at the graph, you can see that angles [tex]12x+9[/tex] and [tex]99[/tex]° both combined make 180°, so they are considered supplementary.

I need Helpp pleaseeeeee

Answers

The answer is in the picture.

no explanation just answer

Answers

The value of p is -5/3

Please help me with #1

Answers

Answer:

N-K = 6-3 which equals 3.

Step-by-step explanation:

50 people purchase item 5(the item 5 cost $18.94) seven of these customers use a coupon for 15% off. how much money do you make off the sales of item 5?

Answers

Answer:

$927.113

Step-by-step explanation:

50-7=43

43×18.94=814.42

100-15=85

100%=18.94

what about 85%

85×18.94=1609.9÷100=16.099

16.099×7=112.693

814.42+112.693= 927.113

For addition, drag tiles onto the board.

To form a group, place one tile on top of another.

What is the product of -3 and 5?

O-15

O-8

O 8

O 15

Board sum: 0

Reset

Answers

-15 CV V ysysssg CCD chuckled.

The value of the expression - 3 x 5 using the multiplication property will be -15. Then the correct option is A.

What is Algebra?

Algebra is the study of algebraic expressions, while logic is the manipulation of those concepts.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to answer the problem correctly and precisely.

The numbers are given below.

-3 and 5

Then the product of the numbers -3 and 5 will be given by putting a cross sign between them. Then we have

⇒ -3 x 5

⇒ -15

The value of the expression - 3 x 5 using the multiplication property will be -15. Then the correct option is A.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ7

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