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Ronch [10]
3 years ago
15

Complete the square to solve the equation below.

Mathematics
2 answers:
Goryan [66]3 years ago
8 0

Answer:

D. 2

Step-by-step explanation:

x2 +8x-1=19

x2+8x-20=0

x2+8x +(8/2)^2 - (8/2)^2 -20=0

x2+8x+16-16-20=0

x2+8x-36=0

(x+4)^2 =36

X+4=6

X=6-4. X=6+4

X=2, X=10

jenyasd209 [6]3 years ago
3 0

Answer: X= -10, and X=2

Step-by-step explanation:

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Nate wants to visit his friend max before going to the park. Nates house is located at (-2,4), while the park is located at (10,
8_murik_8 [283]

Answer:

(5,1)

Step-by-step explanation:

if macs house if it’s 1/2 of the distance from Nate house to the park then half the distance of 10,2 is 5,1

6 0
3 years ago
Ella has 0.5 lbs of sugar. How much water should she add to make the following concentrations? Tell Ella how much syrup she will
HACTEHA [7]

Ella has to add 32.833 lbs of water to get 33.333 lbs of syrup.

<u>Solution:</u>

Ella has 0.5 lbs of sugar. Let x lbs be the amount of water Ella should add to get the 1.5% of syrup,

\Rightarrow0.5\text{ lbs }- 1.5\%

\Rightarrow x+0.5\text{ lbs }- 100\%

On writing the proportion,

\Rightarrow\dfrac{0.5}{x+0.5}=\dfrac{1.5}{100}\\ \\\Rightarrow0.5\cdot 100=(x+0.5)\cdot 1.5\\ \\\Rightarrow50=1.5x+0.75\\ \\\Rightarrow1.5x=50-0.75\\ \\\Rightarrow1.5x=49.25\\ \\\Rightarrow x=\dfrac{49.25}{1.5}\approx 32.833\ lbs

To get 1.5% syrup Ella should add 32.833 lbs of water. The total weight of syrup is 33.333 lbs.

7 0
3 years ago
9
Mashcka [7]

Answer:

11

Step-by-step explanation:

A11

5 0
3 years ago
Combine and simplify the following radical expression.
Nina [5.8K]

This is the answer and the steps

3 0
3 years ago
Which expression is equivalent to one over 3p + 15?
Doss [256]

we know that

the expression " one over (3p+15)"  is equivalent to

\frac{1}{(3p+15)} --------> expression A

and

 3p+15=3(p+5) --------> expression B

substitute the expression B in the expression A

\frac{1}{(3p+15)}=\frac{1}{3(p+5)} -----> one over three(p + 5)

therefore

<u>the answer is the option </u>

one over three(p + 5)

3 0
3 years ago
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