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Pani-rosa [81]
3 years ago
6

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:

<em>~Factor and set each factor equal to 0~</em>

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

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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:

A

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

B

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

C

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

D

<em>Since</em><em> </em><em>9</em><em>.</em><em>5</em><em>6</em><em>8</em><em> </em><em>million</em><em> </em><em>movies</em><em> </em><em>are</em><em> </em><em>rented</em><em>.</em>

<em>How</em><em> </em><em>about</em><em> </em><em>in</em><em> </em><em>one</em><em> </em><em>year</em><em> </em><em>(</em><em> </em><em>4</em><em>8</em><em> </em><em>weeks</em><em> </em><em>)</em>

<em>Convert</em><em> </em><em>1</em><em> </em><em>year</em><em> </em><em>to</em><em> </em><em>weeks</em><em> </em><em>and</em><em> </em><em>compare</em><em> </em><em>with</em><em> </em><em>1</em><em> </em><em>week</em>

7 0
3 years ago
Use the function below to find f(2) <br> 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
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