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SpyIntel [72]
3 years ago
8

Write x2-8+13=0 in the form (x-a)2=b

Mathematics
1 answer:
egoroff_w [7]3 years ago
7 0

Answer:

(x-4)2=-13

Step-by-step explanation:

2x+13=8

2x-8=-13

2(x-4)=-13

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3) Original price of a tie: $29.50<br> Discount: 50%<br> Tax: 5%
Reptile [31]

Answer:

$15.49

Step-by-step explanation:

29.50*.50=14.75

14.75*.05=.74

14.75+.74=15.49

8 0
3 years ago
55. (a) If alpha and beta are the roots of the equation xsquare+ px+q=0 and beta&gt;alpha find the square of the
densk [106]

Answer:

√(p²-4q)

Step-by-step explanation:

Using the Quadratic Formula, we can say that

x = ( -p ± √(p²-4(1)(q))) / 2(1)  with the 1 representing the coefficient of x². Simplifying, we get

x = ( -p ± √(p²-4q)) / 2

The roots of the function are therefore at

x = ( -p + √(p²-4q)) / 2 and x = ( -p - √(p²-4q)) / 2. The difference of the roots is thus

( -p + √(p²-4q)) / 2 - ( ( -p - √(p²-4q)) / 2)

= 0 + 2 √(p²-4q)/2

= √(p²-4q)

7 0
3 years ago
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sesenic [268]
4/10 and 3/10 are the answers
7 0
4 years ago
The slope for 5 and 2
Yuri [45]

\qquad\qquad\huge\underline{{\sf Answer}}♨

As we know, slope (m) is equal to tan θ for a straight line :

\qquad \tt\dashrightarrow \: m = \tan( \theta)

\qquad \tt\dashrightarrow \: m =  \dfrac{5}{2}

So, we can say that it's a positive constant slope

8 0
2 years ago
The Wilsons traveled the 2400 miles of Route 66 from Chicago,IL to Santa Monica, CA. If their total driving time was 50 hours, w
Zolol [24]

Answer:

48 miles per hour

Step-by-step explanation:

If they traveled 2400 miles and the total driving time was 50 hours, divide 2400/50 in order to find how many miles they drove per hour.

4 0
2 years ago
Read 2 more answers
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