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3 years ago

Solve by factorizing x² + 8x + 15 + 0

Mathematics

2 answers:

anygoal [31]3 years ago

6 0

Answer:

(x+3)(x+5)

Step-by-step explanation:

shusha [124]3 years ago

4 0

Download

GET

Algebra

Factor

Factor the polynomial.

(

)

(

)

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()|[]√≥

789≤

456/^×>∩∪

123-+÷<π∞

,0.%=

Factor

Regroup terms.

Add

and

Factor

using the AC method.

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Consider the form

. Find a pair of integers whose product is

and whose sum is

. In this case, whose product is

and whose sum is

Write the factored form using these integers.

(

)

(

)

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Can someone please answer this

nikdorinn [45]

Answer:

The answer us B y= -8/7x -18/7

5 0

3 years ago

Jermaine is ordering a piece of glass in the shape of a trapezoid to create a patio table top. Each square

galben [10]

Answer:

$400

Step-by-step explanation:

1) we need to find area of trapezoid first

area of trap formula:( (b1+b2)/2)h

b1=5

b2=3

h=4

(5+3)/2=4

4*4=16

there are 16 square feet in thtat trapezoid

hence, 25*16= $400

the glass cost $400

5 0

2 years ago

I need help quick please

Gelneren [198K]

The answer would be disagree because it you reflected it over the x axis then it would be in the third quadrant

Hope this helps

Have a great day/night

Feel free to ask any questions

8 0

3 years ago

Select all the statements that are true for the following systems of equations

Aleks [24]

Answer:

A. System C simplifies to 2x - 3y = 4 and 4x - y = 54 by dividing the second equation by three (3).

B. Systems A and C have the same solutions.

C. Systems A and B have different solutions.

Step-by-step explanation:

Given the following system of equations;

System A

2x - 3y = 4 .....equation 1

4x - y = 18 .......equation 2

We would solve the above equations using the elimination method;

Multiplying eqn 1 by 2;

2*(2x) - 2*(3y) = 4*2

4x - 6y = 8 ...... equation 3

Subtracting eqn 2 from eqn 3;

(4x - 4x) + (-6y - (-y)) = 8 - 18

0 + (-6y + y) = -10

-5y = -10

5y = 10

$y = \frac {10}{5}$

y = 2

To find the value of x;

2x - 3y = 4

2x - 3(2) = 4

2x - 6 = 4

2x = 4 + 6

2x = 10

$x = \frac {10}{2}$

x = 5

Solutions (x, y) = (5, 2)

System B

3x - 4y = 5 ..... equation 1

y = 5x + 3 ..... equation 2

We would solve the equations using substitution method;

Substituting eqn 2 into eqn 1, we have;

3x - 4(5x + 3) = 5

3x - 20x - 12 = 5

-17x - 12 = 5

-17x = 12 + 5

-17x = 17

$x = \frac {-17}{17}$

x = -1

To find the value of y;

y = 5x + 3

y = 5(-1) + 3

y = -5 + 3

y = -2

Solutions (x, y) = (-1, -2)

System C

2x - 3y = 4 ..... equation 1

12x - 3y = 54 ...... equation 2

We would solve the above equations using the elimination method;

Subtracting eqn 2 from eqn 1;

(2x - 12x) + (-3y -(-3y)) = 4 - 54

-10x + (-3y + 3y) = -50

-10x + 0 = -50

-10x = -50

10x = 50

$x = \frac {50}{10}$

x = 5

To find the value of y;

2x - 3y = 4

2(5) - 3y = 4

10 - 3y = 4

3y = 10 - 4

3y = 6

$y = \frac {6}{3}$

y = 2

Solutions (x, y) = (5, 2)

5 0

2 years ago

Can someone please work through this one question so I know what to do for the other 9? How the testing system works for me is t

Aloiza [94]

Scientific notation is the way that scientists easily handle very large numbers or very small numbers. Scientific notation is written by writting a decimal number between 1 and 10 together with an exponent of 10.

Given
$(4.23\times10^{12})\div(9.0\times10^6)$

First, using distributive property of numbers, seperate the decimal numbers and the exponents of 10, we have
$(4.23\div9.0)\times(10^{12}\div10^6)=0.47\times10^{12-6}=0.47\times10^6$

Because, scientific notation requires that the decimal number part be a number between 1 and 10, we move the decimal point 1 place foward and subtract 1 from the exponent of 10.

Therefore, $(4.23\times10^{12})\div(9.0\times10^6)$
in standard notation is
$4.7\times10^5$

6 0

2 years ago