All categories

3 years ago

Solve by factorising x2+8x+15=0

Mathematics

2 answers:

Alex_Xolod [135]3 years ago

6 0

Answer:

Hi! The correct answer is x= -3 ,-5!

Step-by-step explanation:

~Factor and set each factor equal to 0~

nlexa [21]3 years ago

6 0

Answer:

(X+2) (X+6)=0

Step-by-step explanation:

X2+8x+12=0

or, X2+(2+6)X+12=0

or, X2+2x+6x+12=0

or, X(X+2) +6(X+2) =0

or, (X+2)(X+6)=0

You might be interested in

Part A: If (7^2)^x = 1, what is the value of x? Explain your answer. (10 points)

Alex777 [14]

Answers:Part A: The value of x is 0.Part B: X can be any real number.
In Part A, you have to first evaluate 7^2. This is 49. Now, write the equation 49^x = 1. We know that if you raise any number to 0, then the answer is 1.
In Part B, you have to first evaluate 7^0, that is 1. Now, we have the equation 1^x = 1. In this case, 1 raised to any exponent is still only 1. Imagine 1^17, this would be 1 times itself 17 times or just 1.
Therefore any number will work in Part B.

3 0

3 years ago

Please I will give brainliest

Dimas [21]

The answer is 96 square ft

4 0

3 years ago

All parts please, i need this by the end of today and pls write answer in comments

ale4655 [162]

Answer:

$= \frac{78}{360} \\ = \frac{13}{60}$

$let \: total \: number \: be \: x \\ \frac{13}{60} x = 1164 \\ x = \frac{1164 \times 60}{13} \\ x = 5372 \: movies$

A year has (4 × 12) weeks

= 48 weeks.

In 1 week = 9,568,000 movies

48 weeks = (48 × 9,568,000) movies

Average movies = 459.264 movies

Since 9.568 million movies are rented.

How about in one year ( 48 weeks )

Convert 1 year to weeks and compare with 1 week

7 0

3 years ago

Use the function below to find f(2) f(x)=1/3·4×

omeli [17]

Answer: I think that is the answer I solve it as they sealed me

f(x)=0.25

Step-by-step explanation:

f(x)=1/3*4(2)

f(x)=0.25

6 0

3 years ago

Which description is correct for the polynomial 2x^2 +2

boyakko [2]

It is a polynomial with degree 2, with leading coefficient 2 and constant term 2. It has no linear coefficient. Its graph is a parabola.

5 0

3 years ago