factorize:3x^{2} +4x-15

Answers

Answer 1

Answer:

(3x - 5) (x + 3)

Step-by-step explanation:

Multiply the coefficient of the first term by the constant:

3 x -15 = -45

Find two factors of -45 that equals 4:

-5 + 9 = 4

Rewrite the polynomial splitting 4 using -5 and 9:

3x2 - 5x + 9x - 15

Add up the first 2 terms, pulling out like factors:

x • (3x-5)

Add up the last 2 terms, pulling out common factors:

3 • (3x-5)

Add everything up:

Answer

(x+3) (3x-5)


Related Questions

You are given the dollar value of a product in 2016 and the rate at which the value of the product is expected to change during the next 5 years. Use this information to write a linear equation that gives the dollar value V of the product in terms of the terms of year t. (Let t=16 represent 2016)

Answers

Complete Question

You are given the dollar value of a product in 2016 and the rate at which the value of the product is expected to change during the next 5 years. Use this information to write a linear equation that gives the dollar value V of the product in terms of the terms of year t. (Let t=16 represent 2016)

2016 Value     Rate

$2150           $250 increase per year

Answer:

The  equation is  [tex]V(t) = 250 (t) + 4.3[/tex]

Step-by-step explanation:

Generally linear equation is represented mathematically as follows

      [tex]y = mx + c[/tex]

Where  y is the dependent variable which in this case is  dollar value of a product (V(t))

   x is the independent variable which in this case is the time in years(t)

  m is the slope which in this case is the  rate at which the value of the product is expected to change during the next 5 years

So  

        [tex]V(t) = m t + c[/tex]

When  t =  16  years

         [tex]2150 = 250 (16) + c[/tex]

=>       [tex]c = 4.3[/tex]

So the linear equation is  

      [tex]V(t) = 250 (t) + 4.3[/tex]

     

A classroom consists of 14 boys, 10 girls, and 1 teacher. Write the ratio of girls to boys. (Be sure to write your ratio all 3 ways.)

Answers

Answer:

10:14

10/14

10 to 14

about 0.71

Step-by-step explanation:

different way to write ratios

?:?

?/?

? to ?

decimal

(not sure which 3 ways so I'll just do all 4)

girl:boy

10:14

10/14

10 to 14

about 0.71

Answer:

Step-by-step explanation:

Given the number Line, what ray does not contain CB?

Answers

Answer:

[tex]\large \boxed{\mathrm{C }}[/tex]

Step-by-step explanation:

The ray CF does not contain the ray CB.

The number line, does not contain CB is CF. Therefore, option C is the correct answer.

What is line segment?

A line segment is a path between two points that can be measured. Since line segments have a defined length, they can form the sides of any polygon.

In the given number, there are six divisions A, B, C, D, E, F.

Ray CB is in the line segment AD, AE, FA, BE, BF.

The number line, does not contain CB is CF. Therefore, option C is the correct answer.

Learn more about the line segment here:

https://brainly.com/question/25727583.

#SPJ2

Simplify: (6x-4) (9x-2)

Answers

Step-by-step explanation:

Hey, there!!

While simplifying the algebraic expression, you must be very careful about the signs.

Here,

(6x-4) (9x-2)

Multiply 2nd expression by 1st expression,

= 6x ( 9x - 2) -4 ( 9x - 2)

[tex] = (54 {x}^{2} - 12x) - (36x - 8)[/tex]

Opening brackets,

[tex] = 54 {x}^{2} - 12x - 36x + 8[/tex]

Simplifying them we get,

[tex] = 54 {x}^{2} - 48x + 8[/tex]

Therefore, the answer is 54x^2 - 48x +8.

Hope it helps..

Solve for x:
9x - 3 - 8x = 7 - x
x= -7
x=-2
x = 4
x = 5

Answers

Answer:

x = 5

Step-by-step explanation:

Given

9x - 3 - 8x = 7 - x , that is

x - 3 = 7 - x ( add x to both sides )

2x - 3 = 7 ( add 3 to both sides )

2x = 10 ( divide both sides by 2 )

x = 5

Answer:

Step-by-step explanation:

Twelve decreased by two times a number is 8. Find the number.

Answers

Answer:2

Step-by-step explanation: 12-8=4 4/2=2

Answer:

x = 2

Step-by-step explanation:

We can make an equation that meets the requirements stated.

Decreased signifies subtraction, so 12 will reduce the value after it. A number can be any letter you'd like, but I'll stick to x. Since 2 is multiplying that number, we can make 2 the coefficient. Finally, set it equal to 8.

12 - 2x = 8 Subtract 12 from both sides of the equation.

-2x = -4 Divide by -2 on both sides of the equation.

x = 2

Christopher is designing a rectangular fence to go around his school's chicken coop The length should be 2 ft longer than the width Christopher marks two vertices of the rectangle at Pando in the coordinate plane PO is one of the shorter sides. Each unit in the coordinate plane represents ift Daw rectangle PORS in the coordinate plane to model the fence b. How many feet of long does wed to go around the chicken coop! pls help​

Answers

Answer:

Christopher needs 24 feet of fencing. Your rectangle should be 5x7 feet.

Step-by-step explanation:

Line PO is 5 feet wide, and we know that the side across from it is 5 feet wide. 5+5=10. The longer sides are supposed to be 2 feet longer than the shorter sides, so they have to be 7 feet long. 7+7=14. 10+14=24.

solve the system of equations. please help asap! i appreciate it!

Answers

Answer:

B. (-1, 2) and (4,7)

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

The answer is b hope it helps

q+ad=m solve for d, i need help now please!

Answers

Answer:

d =(m-q)/a

Step-by-step explanation:

[tex]q+ad=m\\ad = m-q\\\frac{ad}{a} = \frac{m-q}{a} \\\\d = \frac{m-q}{a}[/tex]

Answer:

d =  ( m-q)/a

Step-by-step explanation:

q+ad=m

Subtract q from each side

q-q+ad=m-q

ad = m-q

Divide each side by a

ad/a = ( m-q)/a

d =  ( m-q)/a

Which phrase is equivalent to the expression (17×4)−35?

Answers

Answer:

-2380

Step-by-step explanation:

you first multiply 17 by 4

next multiply 68 by 35

you get 2380

finally add a negative sign in front of it

4 of the power of 5 times 4 of the power of negative 7 divided by 4 of the power negative 2

Answers

Answer:

1

Step-by-step explanation:

[tex] {4}^{5} \times {4}^{ - 7} \div {4}^{ - 2} \\ = \frac{ {4}^{5} \times {4}^{ - 7} }{ {4}^{ - 2} } \\ \\ = \frac{ {4}^{5 + ( - 7)} }{ {4}^{ - 2} } \\ \\ = {4}^{5 + ( - 7) + 2} \\ \\ = {4}^{5 - 7 + 2}\\ \\ = {4}^{7 - 7 } \\ \\ = {4}^{0} \\ \\ = 1 \: \: ( \because \: {a}^{0} = 1)[/tex]

plz i gotta turn it in today

Answers

2) B

3) C

it my answer it mybe not true

May someone answer me????

Q1. What is the solution set of 9x-4<13x-7

A. [1,2,3]
B. [1,2,3......]
C. [0,1,2,3...]
D. [0,1,2,3]​

Answers

Answer:

[tex]\huge\boxed{B. [1,2,3,........]}[/tex]

Step-by-step explanation:

[tex]9x - 4 < 13 x - 7[/tex]

Combining like terms

=> [tex]-4 + 7 < 13x-9x[/tex]

=> [tex]3 < 4x[/tex]

Dividing both sides by 4

=> [tex]x > \frac{3}{4}[/tex]

=> [tex]x > 0.75[/tex]

This means that x can be any number that is greater than 0.75

So, The solution set = [1,2,3,........]

-8(2z - 7c) use z = 5 and c = 2

Answers

Answer:

The answer is

-8(2×5-7×2)

=-8(10-14).

= -8(-4)

= 32.

Answer is 32

Step 1. Solve inside the parentheses so 2x5= 10 and 7x2=14 then you have -8(10-14)

Step 2. Distribute -8 so -8x10= -80 and -8x14= -112 = -80- -112

Step 3. Subtract totals: -80- -112 = 32 it’s a positive because of the two negatives being subtracted together

Find lcm of 861,1353 using methods

Answers

Answer:

Step-by-step explanation:

3 ∣ 861,1353

______________

41 ∣ 287,451

______________

7 ∣ 7,11

______________

11 ∣ 1,11

______________

      1,1

LCM = 3 × 41 × 7 × 11

= 9471.

Hope this helps

plz mark as brainliest!!!!!!

Answer:

861 = 3×7×41

1353 = 3×11×41

LCM = 3×7×11×41

= 9471

Step-by-step explanation:

I NEED HELP WITH THIS FAST!! PLS Which of the following is the midpoint of the line segment with endpoints (-2, – 4) and (6, 8)?
A. (2, 2)
B. (2, 4)
C. (4, 4)
D. (4, 6)

Answers

Answer:

A

Step-by-step explanation:

x-3 divided by 4 = 12

Answers

Answer:

x = 51

Step-by-step explanation:

(x-3) /4 = 12

Multiply each side by 4

(x-3) /4 *4 = 12*4

x-3 = 48

Add 3 to each side

x-3+3 = 48+3

x = 51

Answer:

[tex]\Huge \boxed{x=51}[/tex]

[tex]\rule[225]{225}{2}[/tex]

Step-by-step explanation:

[tex]\displaystyle \frac{x-3}{4} =12[/tex]

Multiplying both sides by 4.

[tex]\displaystyle \frac{x-3}{4} *4=12 *4[/tex]

[tex]x-3=48[/tex]

Adding 3 to both sides.

[tex]x-3+3=48+3[/tex]

[tex]x=51[/tex]

[tex]\rule[225]{225}{2}[/tex]

Which formula defines the sequence f(1) = 2, f(2) = 6, f(3) = 10,f(4) = 14.
f(5) = 18?

Answers

Answer:

2 + 4(n-1).

Step-by-step explanation:

As x increases from 1,  f(x) increases  by 4.

Arithmetic sequence.

So the formula is  a1 + d(n - 1)

= 2 + 4(n-1).

The function which defines the series will be 2 + 4(n-1).

What is a number series?

A series of numbers is called a number series. We must identify the laws that lead to the production of a number series in order to answer the questions about number series. The questions that might arise from these topics are as varied as these series themselves.

Given functions are f(1) = 2, f(2) = 6, f(3) = 10,f(4) = 14 f(5) = 18. The sequence will be represented by the function:-

As x increases from 1,  f(x) increases by 4. Arithmetic sequence.

F = a₁+ d(n - 1)

F = 2 + 4(n-1).

Therefore, the function which defines the series will be 2 + 4(n-1).

To know more about the number series follow

https://brainly.com/question/6561461

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write a letter to your friend and tell him at least three reasons why he should come to your school​

Answers

Answer:

hi my friend I can't come to the school because of these three reasons is

1)I went to tirupati

2)I got I'll

3)I went to my grand parents house

this is your answer bro

Can someone please help?

Answers

Answer:

Even

Step-by-step explanation:

An odd number added by an odd number will equal an even number.

Good luck :)

Answer:

Even

Step-by-step explanation:

All the answers to adding up odd numbers in the bellow examples shows even answers.

Need an answer I need help?

Answers

Answer:

You need help or I need help?

Step-by-step explanation:

(I typed with a keyboard)

Owen made 60% of the shots he attempted during his hockey practice. He made 18 shots. How many shots did Owen attempt during his hockey practice?

Answers

Answer:

10.8 we're attempted.

Step-by-step explanation:

60% of 18 is 10.8


show all work to multiply 3 plus the square root of negative 16 times 6 minus the square root of negative 64

Answers

Answer:

[tex]\Huge \boxed{3+16i}[/tex]

[tex]\rule[225]{225}{2}[/tex]

Step-by-step explanation:

[tex]3+\sqrt{-16} * 6-\sqrt{-64}[/tex]

Using imaginary number rule : [tex]\sqrt{-n} =\sqrt{n} *i[/tex]

Where [tex]n[/tex] is a positive integer.

[tex]3+\sqrt{16} *i* 6-\sqrt{64}*i[/tex]

[tex]3+4i* 6-8i[/tex]

Multiplying.

[tex]3+24i-8i[/tex]

Combining like terms.

[tex]3+16i[/tex]

[tex]\rule[225]{225}{2}[/tex]

Answer:

3 + 16i

Step-by-step explanation:

3 + √-16 * 6 - √-64

= √-16 * 6 = 24i;    √-16 * 6;     √-16 = 4i

= 4 * 6i    multiply the numbers 4 * 6 = 24

= 24 i

√-64 = 8i;   √64    apply a radical rule

= √-1 √64

= √64  i;    √64 = 8

= 8i

= 3 + 24i - 8i

= 3 + 16i

What is the quotient when the product of 20 and 5 is divided by the sum of 20 and 5?

Answers

Answer:

=4

Step-by-step explanation

(20x5) divided by (20+5)

100 divided by       25=4

Answer:

its 4

Step-by-step explanation:

5 four times is 20. Count by fives and once you get to 4 you'll get 20.

3. Find the value for x that makes the following equation true.
3x - 7 = x + 3
A)x = -5
B) x = 2
C) x = 5
D) x = -2


Can someone please help me out ??

Answers

Answer:

C

Step-by-step explanation:

So we have the equation:

[tex]3x-7=x+3[/tex]

Subtract x from both sides. The right cancels:

[tex](3x-7)-x=(x+3)-x\\2x-7=3[/tex]

Add 7 to both sides. The left cancels;

[tex](2x-7)+7=(3)+7\\2x=10[/tex]

Divide both sides by 2:

[tex](2x)/2=(10)/2\\x=5[/tex]

So, our answer is C

Answer:

C) x = 5

Step-by-step explanation:

A) 3(-5) - 7 = (-5) + 3

   -15 - 7 = (-5) + 3

   -23 = (-5) + 3

   -23 = -2 (they do not equal the same so no)

B) 3(2) - 7 = (2) + 3

    6 - 7 = (2) + 3

    -1 = (2) + 3

    -1 = 5 (they do not equal the same so no)

C) 3(5) - 7 = (5) + 3

    15 - 7 = (5) +  3

    8 =  (5) + 3

    8 = 8 (they equal the same so yes)

D) 3(-2) - 7 = (-2) + 3

    -6 - 7 = (-2) + 3

    -13 = (-2) + 3

    -13 = 1 (they do not equal the same so no)

A plane can fly 11 miles per minute. The plane will fly 6 trips, and each trip is 500 miles. How many hours will the plane fly? Show your work to receive full credit.

Answers

T= trip. M = miles. Mpm = miles per minute

Get the total miles
T x M
6 x 500 = 3000 miles

Find how many minutes did it travel
Total miles / by Mpm
3000/ 11

Evaluate if x = 1 , y = 3 , and z = 5

|5z - 2y|

Answers

Answer:

1

Step-by-step explanation:

Write an algebraic expression that models the word phrase.
the sum of the product of a number x and 15, and 13
Choose the correct

Answers

Answer:

15x + 13

Step-by-step explanation:

Product of a number 'x' & 15 : x *15 = 15x

Sum of 15x & 13:

15x + 13

If A = {1, 2, 3, 4} and B = {4, 5, 6}, find A ∪ B.

Answers

Answer:

{ 1,2,3,4,5,6}

Step-by-step explanation:

20 points!!! please please help I don't understand how to do this :( please explain it so that I can do problems similar​

Answers

Answer:

Line n

Step-by-step explanation:

We see on the picture that XM=MY

So M is midpoint of the segment XY

Line n passes through midpoint M, so it is the segment bisector of XY

Correct choice is Line n

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