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erastova [34]
2 years ago
7

Solve by completing a square x(2)-8×+15=0

Mathematics
2 answers:
tatuchka [14]2 years ago
5 0

Answer:

x=2.5

Step-by-step explanation:

x(2)-8×+15=0 combine like terms

-6x+15=0 subtract 15 from both sides

-6×=-15 divide by -6 on both sides

x=2.5

lawyer [7]2 years ago
4 0

Answer:

2x -8x+15=0

-6x+15=0

-6x= 15

x= 5/2

Step-by-step explanation:

You might be interested in
Simplify 18-2[x + (x - 5)].<br> O8-4x<br> 28 - 4x<br> 28 - 2x
densk [106]

Answer:

28-4x

Step-by-step explanation:

Step 1: Open most inner bracket and simplify

=18-2(x+x-5)

=18-2(2x-5)

Step 2: Expand brackets by multiplying 2 in and simplify

=18-2(2x)-2(-5)

=18-4x+10

=28-4x

Therefore the answer is 28-4x

3 0
2 years ago
HELPP determine the unit rate if you work and earn 171.00 in 12 hours. what is the dollar per hour you make???
Lubov Fominskaja [6]

Answer:

hi glad to help so what you do is basically divide 171 by 12 and you get 14.25 so the unit rate is 14.25 per hour hope i helped plz can i have brainliest

Step-by-step explanation:


5 0
3 years ago
In October of 2010 it rained 4 inches. In October of 2011 it rained 2.6 inches. What is the percent decrease in October rainfall
Bumek [7]
The percent decreased by 65%
5 0
2 years ago
Pears cost $0.92 per pound and apples cost $1.10 per pound. Mr. Bonilla bought 3.75 pound of pears and 2.1 pounds of apples. How
Blababa [14]
3.75* .92= $3.45

2.1* 1.10= $2.31

$3.45
+ $2.31
_______
$5.76
6 0
2 years ago
Read 2 more answers
What is the horizontal asymptote of the function f(x)= -2x/x+1
daser333 [38]

<u>Answer:</u>

-2

<u>Step-by-step explanation:</u>

We have been given a function f(x)=\frac{-2x}{x+1} and we are asked to find the horizontal asymptote of our given function.

Recalling the rules for a horizontal asymptote:

1. If the numerator and denominator have equal degree, the horizontal asymptote will be the ratio of the leading coefficients.

2. If the polynomial of denominator has larger degree than the numerator, then the horizontal asymptote will be the x-axis or y=0.

3. If the polynomial of numerator has larger degree than denominator, then the function has no horizontal asymptote.

Here, the numerator and denominator are of the same degree. So the horizontal asymptote will be the ratio of the coefficients.

Horizontal asymptote = -\frac{2}{1} = -2

8 0
3 years ago
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