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s344n2d4d5 [400]
3 years ago
11

Complete the square to solve the equation below. x^2-10x-2=17​

Mathematics
1 answer:
Naddika [18.5K]3 years ago
8 0

Answer:

Exact form : x = +_2 squareroot 11+5

Decimal form : x=11.63324958...,-1.63324958...

Step-by-step explanation: Use the formula (b/2)^2 in order to create a new term. Solve for x by using the term to complete the square.

I hope this helps you out! :)

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Evaluate 5(14 – 23) + 8 ÷ 2. A. 26 B. 34 C. 44 D. 56
Keith_Richards [23]

Answer:

We multiplu5(14-23)which will vive us 115-70 equivalent to -45 and then we divide 8÷2which will give us 4. Finally we add -45+4=-41

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
a piece of lumber is 2 1/4 ft long is cut into 3 equal pieces .How long will each piece of cut wood be ?
yaroslaw [1]

Answer: Each piece would be 3/4 feet long

Step-by-step explanation:

If the piece of  lumber is 2 1/4 ft long, and it is cut into 3 pieces then divide

2 1/4 by 3 to find out how long each piece of cut wood would be.

2 1/4  is the same as 9/4

\frac{9}{4} / \frac{3}{1} = 9/12  which also simplifies to  3/4

6 0
3 years ago
Find the area of the curve y= f(x) = x between x = 5 and x = 10
Tems11 [23]

Answer:

the area of the curve y= f(x) = x between x = 5 and x = 10

A=\frac{75}{2}

Step-by-step explanation:

  • Finding the area of the curve  y = f(x) = x between x = 5 and x = 10

Using the Area formula

A=\int _a^b\:f\left(x\right)dx

As the area of curve lies between x = 5 and x = 10

so

  • a = 5, b = 10

so the integral expression becomes

A=\int _5^{10}xdx

\mathrm{Apply\:the\:Power\:Rule}:\quad \int x^adx=\frac{x^{a+1}}{a+1},\:\quad \:a\ne -1

A=\left[\frac{x^{1+1}}{1+1}\right]^{10}_5

    =\left[\frac{x^2}{2}\right]^{10}_5

     =\frac{1}{2}\left[10^2-5^2\right]

     =\frac{1}{2}\cdot \:75

     =\frac{75}{2}

Therefore, area of the curve y= f(x) = x between x = 5 and x = 10

A=\frac{75}{2}

4 0
3 years ago
Find the solution set <br><br> x^2-4x+4=0
s344n2d4d5 [400]
X^2 - 4x + 4 = 0
(x - 2)^2 = 0  - Factor left side
x - 2 = 0 - Square root each side
x = 2 - add 2 to each side
8 0
3 years ago
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Find r and s. PLS HELP AND QUICK!
zavuch27 [327]

Answer:

r=12

S=24

Step-by-step explanation:

\tan(60)  =  \frac{12 \sqrt{3} }{r}  \\  \sqrt{3} =  \frac{12 \sqrt{3} }{r}   \\ r = 12 \\  \\  \\  \sin(60)  =  \frac{12 \sqrt{3} }{s}  \\  \frac{ \sqrt{3} }{2}  =  \frac{12 \sqrt{3} }{s}  \\ s = 24

I hope I helped you^_^

5 0
3 years ago
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