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3 years ago

Ahhhhh can someone please help its on quadratic equations

Mathematics

1 answer:

Temka [501]3 years ago

5 0

1. -9/2, 9/2

2. 3-4(squared)2/4, 3+4(squared)2

3. -3(squared)2, 3(squared)2

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The point (6, 6) is on the graph y = f(x) . Find the corresponding coordinates of this point on the graph y = 4f[1/3x +9] -7

miss Akunina [59]

Answer:

Correct answer is:

a. (-9,17)

Step-by-step explanation:

We are given that a point (6, 6) lies on the graph of $y =f(x)$ .

Putting the values from the given point:

$6 =f(6)$

That means we are given that $f(6) =6$ ..... (1)

And we have to find the corresponding coordinates of this point on the graph of $y = 4f[\frac{1}3x +9] -7$

From equation (1), we know the value of $f(6)$ .

so, let us convert $f[\frac{1}3x +9]$ to a form such that it becomes equal to $f(6)$

$\Rightarrow \dfrac{1}{3}x +9 =6\\\Rightarrow \dfrac{1}{3}x=-3\\\Rightarrow x = -9$

So, let us put $x = -9$ in the given function:

$4f[\frac{1}3\times (-9) +9] -7\\\Rightarrow 4f[-3 +9] -7\\\Rightarrow 4f(6) -7$

Now, using equation (1), putting $f(6)=6$

$\Rightarrow 4\times 6 -7\\\Rightarrow 24-7 \\\Rightarrow y = 17$

Therefore, the point the corresponding point is:

a. (-9,17)

8 0

4 years ago

Bob's average golf score at his local course is 93.6 from a random sample of 34 rounds of golf. Assume that the population stand

xxMikexx [17]

Answer:

a. (92.4, 94.8)

Step-by-step explanation:

Given that:

Mean (m) = 93.6

Standard deviation (σ) = 4.2

Sample size (n) = 34

α = 90%

Confidence interval around sample mean :

Mean ± Zstatistic * s/√n

Z0.90 = 1.645 (Z probability calculator)

s / √n = 4.2 / √34 = 0.7202940

Lower limit = 93.6 - (1.645 * 0.7202940) = 92.41511637 = 92.4

Upper limit = 93.6 + (1.645 * 0.7202940) = 94.78488363 = 94.8

4 0

3 years ago

1.Una granja tiene gallinas y vacas. En total hay 58 cabezas y 168 patas. ¿Cuántos gallinas y cuantas vacas hay?

Arlecino [84]

Answer:

no c

Step-by-step explanation:

3 0

3 years ago

Which of the following tells how to change a measurement from meters to millimeters.

velikii [3]

Answer:

Divide by 1,000

Step-by-step explanation:

To get down from each level in the metric system, you need to divide by ten, Millimeters are 3 steps down from meters so you need to divide by 1000.

8 0

3 years ago

The quotient of two integers with diferent signs is

almond37 [142]

Quotient means divide.

when dividing with different signs, the result will be negative
when dividing with the same sign, the result will be positive

4 0

3 years ago