HELP! WILL GIVE BRAINLIEST!!! I think it's D please check


Factor completely x3 + 5x2 − 3x − 15.


(x − 5)(x2 − 3)

(x + 5)(x2 + 3)

(x − 5)(x2 + 3)

(x + 5)(x2 − 3)

Answers

Answer 1

Answer:

(x + 5) (x^2 -3)

Step-by-step explanation:

[tex]x^{3} +5x^{2} - 3x - 15[/tex]

Do the grouping:

[tex]x^{3} +5x^{2} - 3x - 15 = (x^{3} +5x^{2}) + (-3x - 15)[/tex]

Then factor out [tex]x^{2}[/tex] in the first and −3 in the second group.

[tex]x^{2}(x+5) - 3(x+5)[/tex]

Factor out the common term x + 5 by using the distributive property.

Polynomial [tex]x^{2}-3[/tex] is not factored in since it does not have any rational roots, thus getting the following:

[tex](x+5)(x^{2} -3)[/tex]

Answer 2

Answer:

the fourth option (x+5)(x²-3)

Step-by-step explanation:

the "-15" tells us we need a 3 and a 5 with different signs.

that eliminates the first and the second options.

and the "5x²" tells us it has to be +5, as there is only one part in the whole multiplication that delivers a x² term (5×x²).

it is also confirmed for the same reasons by "-3x" that the other number has to be -3.


Related Questions

PLEASE HELP ME FAST I WILL GIVE 55 POINTS AND BRAINLIEST AND HEART
Questions 10-12
f(x)= 3x-13
g(x)= 2x^2-4x-5
h(x)=4^x-7

10. Find (f - g) (x)
11. Find (f - h) (x)'
12. Find (f + g) (x)

Answers

I think this is a composition function material ¤¤

Sory this is my answer.

The final model from the Example is shown.
Draw a line around the part of the model that
represents 1 square yard.


Please help thank you

Answers

Answer:

Can anyone check out my page and answer my question??

Step-by-step explanation:

.

The area of the given model is 4/6 square yards.

What is the area of a rectangle?

The area occupied by a rectangle within its boundary is called the area of the rectangle. The formula to find the area of a rectangle is Area = Length × Breadth.

From the given figure, length of a rectangle is 4/3 yards and the width is 1/2  yards.

Here, area of a model is 4/3 × 1/2

= 4/6 square yards

Therefore, the area of the given model is 4/6 square yards.

To learn more about the area of a rectangle visit:

https://brainly.com/question/20693059.

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given MN= PQ, NO=QR,.and OM=RP ​

Answers

Answer:

Step-by-step explanation:

13. R(-9, 4) and S(2, -1); Find T.

Answers

Answer:

you dont have enough information

Step-by-step explanation:

Tyrell gave 3 packs of baseball cards to his friends. He gave each friend 1/2 of a pack. How many friends got baseball cards?

Answers

9! Hope this helps ya out

Answer:

The answer is 6, my other answer got deleted for being "incomplete" even through I was marked as brainliest

Step-by-step explanation:

Someone help pleasee

Answers

Answer:

a horizontal translation 3 units to the right because-3 has been added to the exponent

I need help on this please.

Answers

Answer:

Write in the box :....

30

PLEASE ANSWER THIS QUICK!!!!


Suppose you solve an equation and
find that your school needs 4.3 buses for a class trip.
Explain how to interpret this solution.

Answers

Answer:

you need 5 buses and 4 will be totally full and one will only be 1/3 full

or you can have 14% of all 5 buses with empty seats

Step-by-step explanation:

what is 4.414*10 9 in standard form

Answers

Answer:

4,414,000,000

Step-by-step explanation:

4.414x10^9, move the decimal place 9 places to the left.

Carson buys eggs and lemons at the store.
He pays a total of $39.62.
He pays $6.74 for the eggs.
He buys 8 bags of lemons that each cost the same amount.

Which equation could be used to determine xx, how much each bag of lemons costs?

Answers

Answer:

8x  = 39.62 - 6.74

Step-by-step explanation:

Cost of 1 bag of lemons = $ x

Cost of 8 bags of lemons = 8 *x = 8x

Cost of 8 bags of lemons = Total cost - cost of the eggs

                              8x           = 39.62 - 6.74

Answer:

3.

Step-by-step explanation:

[tex]x + y = 39.62 \\ x = 6.74 \\ y = \frac{39.62 - 6.74}{8} [/tex]

Find the following for each function
f(x)=-2x^2+x-1
a.f(0)
b.f(1)
c. f(-1)
d. f(-x)
e.-f(x)
f. f(x+1)
g. f(2x)
h.f(x+h)
HELP PLEASE

Answers

Answer:

un

Step-by-step explanation:

find one counterexample to show that each conjecture is fake. for two real numbrts a and b, a is either equal to b or greater than b.

Answers

Answer:

.zie8fieiosowdue7fieid92iqopq o ofoo pdoc

Which number can each term of the equation be multiplied by to eliminate the fractions before solving?
- m-{ =2+3m
2
3
.
4.
05

Answers

Answer:

4 is the correct answer.

Number "4" can each term of the equation be multiplied by to eliminate the fractions before solving.

What is algebraic Expression?

Any mathematical statement that includes numbers, variables, and an arithmetic operation between them is known as an expression or algebraic expression. In the phrase 4m + 5, for instance, the terms 4m and 5 are separated from the variable m by the arithmetic sign +.

To eliminate the fractions in the equation -3/4m -1/2m=2+1/4m, we need to find the least common multiple (LCM) of the denominators of the fractions, which is 4.

We can then multiply each term of the equation by 4 to eliminate the fractions.

So, multiplying both sides of the equation by 4, we get:

-3m - 2m = 8 + m

To simplifying, we have:

-5m = 8 + m

To solve for m, we can isolate the variable on one side of the equation. Adding 5m to both sides, we get:

4m = 8

Finally, dividing both sides by 4, we get:

m = 2

Learn more about algebraic Expression here:

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please help me with my question due tomorrow morning I will like and mark as brainliest for the first correct answer please​

Answers

Answer:

p = (2k + 1)i + j

q = 25i + (k + 4)j

p . q = 11

Find the dot product of p and q

(2k + 1)(25) + (k + 4) = 11

50k + 25 + k + 4 = 11

51k = -18

k = - 18/51 = 6/17.

b) p.q = |p||q|cos∅

p= (2k + 1)i + j = [2(-6/17) + 1)i + j ]= 5/17i + j

|p| = √ (5/17)² + 1²

|p| = √314/ 17 ( The square root doesn't cover the 17) = 1.0424

q = 25i + (k + 4)j = 25i + ( -6/17 + 4)j

q = 25i + 62/17 j

|q| = √ 25² + (62/17)²

= 25.2646

Now applying them to the formula above

We already have p.q = 11 from the question.

11 = (1.0424)(25.2646)Cos∅

11 = 26.3358Cos∅

Cos∅ = 11/26.3358

Cos∅ = 0.4177

= 65.31°.

This should be it.

Hope it helps

i need help ;^; please​

Answers

Answer:

[tex] \sqrt{3 {x}^{2} {y}^{3} } \times 2 \sqrt{72 {x}^{3} {y}^{4} } \\ = 2 \sqrt{3 {x}^{2} {y}^{3} 72 {x}^{3} {y}^{4} } \\ = 2 \times 6 \sqrt{6} \times \sqrt{ {x}^{5} {y}^{7} } \\ 12 \sqrt{6} {x}^{2} {y}^{3} \sqrt{xy } \\ 12 {x}^{2} {y}^{3} \sqrt{6xy} \\ thank \: you[/tex]

12x^2y^2 -_/6xy

thats the answer you're looking for

Rewrite using a single positive exponent 4^2/4^-7

Answers

A negative exponent means that factor is on the wrong side of the fraction, so the 4^-7 in 4^2/4^-7 should be moved to the top. When you move it to the other side, the exponent turns from negative to positive:

4^2/4^-7 = 4^2•4^7/1

What’s 4^2•4^7? How many 4’s are multiplied there?
There’s two 4s followed by seven more 4s, for a total of nine 4s: 4^9

When ringing up a customer, a cashier needs 6 seconds to process payment as well as 1
second to scan each item being purchased. If it takes 20 seconds to ring up a customer,
how many items are being purchased?

Answers

Answer:

14 items

Step-by-step explanation:

20 seconds minus the six it takes to process purchase is 14 and if i takes 1 second to scan each item 14 times 1 is 14

Answer:

14

Step-by-step explanation:

to process payment = 6 sec

each item = 1 sec

total = 20 sec

From this information, we can formulate an equation where x = number of items being purchased.

[tex]6+1(x) = 20[/tex]

[tex]x=20-6\\x=14[/tex]

If the value of the x=4 y=3 and z=-2 find value of

A. (x+y)² - 2z B. 2xy-3z C. 2x²-4y+z​

Answers

Step-by-step explanation:

A=(4+3)²-2(-2)=7²+4=49+4=53

B=2(4)(3)-3(-2)=24+6=30

c=2(4)²-4(3)+(-2)=2(16)-12-2=32-14=18

Hope this helps. I know I was the second but I had already solved it so decided why not?

You are offered two jobs. One with a yearly salary of $51,670, and the other an hourly
job with a rate of $26 per hour. Both require you to work for 45 hours a week. How
much more will you make by taking the hourly job?

Answers

Step-by-step explanation:

a year = 52 weeks

a year working hours = 45× 52 = 2340 hours

first job rate per hour = $51670 ÷ 2340 hours

= $22

sec job rate per hour = $26

An image point has coordinates B'(7,-4). Find the coordinates of its pre-image if the translation used was
(x + 4, y + 5).
B 3.1
B[3.-9)
B|11,-9)
B/11, 1)

Answers

Answer:

B

Step-by-step explanation:

To go from B' to B , perform the inverse operation

That is the translation rule is (x - 4, y - 5 ) , then

B'(7, - 4 ) → B (7 - 4, - 4 - 5 ) → B (3, - 9 ) → option B

please help me I’m stuck on this! first best answer gets brainliest

Answers

Answer:

we are told there are 8 letters, and each letter between A-H is 8 total unique letter So 8! is going to be the outcome.

find the indicated length

Answers

Answer:

x=6

AC = 28

Step-by-step explanation:

4x+4= AC

4x +4 = 14 + 3x -4

4x-3x= 14-4-4

x = 6

AC = 4(6) +4 = 24+4 = 28

Is the fraction 6 1/4 a natural number, whole number, integer, rational number, or a irrational number?

*FYI, I think it is a rational number. Lmk if I am wrong :)*

Answers

Answer:

your right it is a rational number

Evaluate the function.
f(x) = –22 +2
Find f(-1)

Answers

Answer:

Cant do this problem since there is no x variable. So the answer would be :

f(x) = -22+2

Step-by-step explanation:

please help asap and show work pls

Answers

Answer:

Answers are a. 8, b. 10, c. -2, d. invalid

Step-by-step explanation:

a.

[tex]f(x)=|x|\\So, f(8)=|8|=8\,;[Modulus\,\,is\,\,always\,\,the\,\,positive\,\,value][/tex]

b.

[tex]f(x)=3^x+1\\f(2)=3^2+1=9+1=10[/tex]

c.

[tex]f(k)=\frac{k}{2}+1\\f(-6)=\frac{-6}{2}+1=-3+1=-2[/tex]

d.

[tex]f(x)=\sqrt{x-5} \\f(3)=\sqrt{3-5}=\sqrt{-2}\\There\,\,is\,\,no\,\,real\,\,solution\,\,for\,\,root\,\,of\,\,a\,\,negative\,\,number[/tex]

Hope you have understood this.....  

ask me if you have any confusion.....  

if you liked it pls mark it as the brainliest

4/3 ÷ 5/3
Answer must be in simplest form.​

Answers

answer is 4/5
decimal form is 0.8

If 4/5 = N/1٫ then N=

Answers

Answer:

4/5 ....

Step-by-step explanation:

N/1 = N

so... um...

4/5 = N/1

4/5 = N

N = 4/5

Answer:

N = 0.8

Step-by-step explanation:

4/5 = N/1

0.8/1 = N/1

0.8 = N

Mila needs to order some new supplies for the restaurant where she works . The restaurant needs at least 754 spoons. There are currently 313 spoons. If each set on sale contains 6 spoons, write and solve an inequality which can be used to determine x, the number of sets of spoons mila could buy for the restaurant to have enough spoons

Answers

Answer:x>73.5

-

Inequality: 6x + 313> 754

-

Step-by-step explanation:

The number of sets of spoons Mila could buy for the restaurant to have enough spoons:

x ≥ 74

What are inequalities?

Inequalities are the comparison of mathematical expressions, whether one quantity is greater or smaller in comparison to another quantity.

We use these symbols to represent inequalities, '>' , '<', '≥', '≤'

Let x be the number of sets of spoons Mila buys. Each set contains 6 spoons, so the total number of spoons Mila will buy is 6x.

The restaurant needs at least 754 spoons, and there are currently 313 spoons, so the total number of spoons needed is:

754 - 313 = 441

we can write the inequality:

6x ≥ 441

To solve for x, we can divide both sides of the inequality by 6:

x ≥ 73.5

x ≥ 74

Therefore, Mila needs to buy at least 74 sets of spoons to ensure that the restaurant has enough spoons.

To know more about inequalities check:

https://brainly.com/question/28823603

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Quadrilateral ABCD is an isosceles trapezoid with AB CD. If AB = w+14. BC= 2w+7. CD=4w +2, and
AD = 3w-5, solve for w.
A 4
В. 12
C. 17
D. 31

Answers

Answer:

A 4382373738373

Step-by-step explanation:

pasti salah

I need help/ explanation. Algebra 2 15 points

Stretch the graph of f(x) vertically by a
factor of 2.

I need to know how to do this.

Answers

Answer:

For each point on the curve given, make a new point that has the same x value but double the y value.

Step-by-step explanation:

Pick several points on the graph given. the easiest points to pick would be (-2, 0), (0, 2) and (2, 0). That's the point on the far left, the point on the top of the curve in the middle, and the point on the far right. For each of these points, make a new point that's twice as high but has the same position left/right. For the far left point and the far right point, the new point will be the same as the old point because the height is zero and double zero is still zero. For the point in the middle the new height will be four since the old height was just two. Then draw a nice curve through those points and you will have the answer. It will be a mound that's twice as tall as the current mound but the same width.

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