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3 years ago

F(x)=x^2-6x+11 state the quadratic formula

Mathematics

2 answers:

mihalych1998 [28]3 years ago

7 0

Answer:

$\\\frac{6 + or - \sqrt{6^{2} - 4 (11)}}{2}$

ivann1987 [24]3 years ago

5 0

Answer:

Step-by-step explanation:

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Simplify 17/20-1/5 explain your answer

Llana [10]

Answer:

13/20

Step-by-step explanation:

Find a same denominator.

17/20 - 1/5 = 17/20 - 4/20

= 13/20

3 0

3 years ago

Can somebody help me with this. Will mark brainliest!

alexandr402 [8]

Answer:

The length of FG is 2.

Step-by-step explanation: B and F are the same point, just reflected, so BC=FG.

7 0

3 years ago

What is the distance between...

katen-ka-za [31]

The distance between -4/12 and 9 is
-369/2

Step 1 :

41
Simplify ——
2
Equation at the end of step 1 :

41
((((0 - ——) • a) • n) • d) • 9
2
Step 2 :

Final result :

-369and
———————
2

6 0

4 years ago

Find the coefficient of correlation between and X and Y if covariance between X and Y is 15 and the variance of X and Y are resp

IRINA_888 [86]

Answer:

0.95

Step-by-step explanation:

$Correlation \ coefficient \ (r) = \dfrac{covaraince \ between \ X \ and \ Y }{SD_X \times SD_Y }$

$Correlation \ coefficient \ (r) = \dfrac{15 }{10^{1/2} \times 25^{1/2} }$

$Correlation \ coefficient \ (r) = \dfrac{15 }{3.162 \times 5 }$

$Correlation \ coefficient \ (r) = \dfrac{15 }{15.81 }$

$Correlation \ coefficient \ (r) \simeq 0.95$

5 0

3 years ago

Is 6 a solution to the equation x^2 - 4 = 5x? Please tell me why or why not

TEA [102]

Answer:

6 is not a solution to the given equation.

Step-by-step explanation:

We are given the equation $x^2-4=5x$

We need to know whether or not x=6 is a solution. This means that we should substitute in 6 for each instance of x. Then, if both sides of the equation are equal, then 6 is a solution to the equation.

$x^2-4=5x\\\\(6)^2-4=5(6)\\\\36-4=30\\\\32=30$

As 32 ≠ 30, 6 is not a solution to the given equation.

3 0

3 years ago