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Nina [5.8K]
3 years ago
9

Find the possible value or values of r in the quadratic equation r^2-7r-8=0

Mathematics
1 answer:
tester [92]3 years ago
6 0
I hope this helps you

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How much does he/she pay with 10 %
ss7ja [257]

Answer:

5085

Step-by-step explanation:

price after discount is 5000- 10% of 5000 = 4500

V.A.T = 13% of 4500 = (13/100)*4500= 13*45= 585

Price after V.A.T = 4500 + 585 = 5085

5 0
3 years ago
Through: (1,5), perp. to y=-1/10x + 3<br> pls help
Sedbober [7]
First to get the equation you knew to understand one thing about perpendicular lines. The slope of the line is the opposite reciprocal of the perpendicular lines or the new slope is m = 10.

Then you use the formula
y = mx + b
you plug in your values from the point and the new slope.
(1,5) with new slope m
5= 10(1)+b
5-10=b
-5 = b
then make your new equation
y = 10x -5
that's your line that goes through point (1,5) and is perpendicular to the line given
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3 years ago
A series of tile patterns is shown below. Consider the function that represents the number of white tiles in each figure. Figure
mr_godi [17]
No one can answer this there is no picture for me or anyone else to look at
7 0
3 years ago
Find the principle square root of 4/25. Give your answer as a fraction in simplest form (numerator, then "/", then denominator).
stiks02 [169]

Answer:2/5

Step-by-step explanation:

6 0
3 years ago
Simplify the expression and write the result in standard form, a+bi.<br><br> 6 - 8i / -2
gregori [183]

Answer:

\frac{6 - 8i}{ - 2}  =  \frac{6}{ - 2}  -  \frac{8i}{ - 2} (splitting \: denomenator) \\ =  -  3 -  - 4i \\ =   - 3 + 4i \\  thank \: you

4 0
3 years ago
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