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prohojiy [21]
3 years ago
15

Please help me

Mathematics
1 answer:
Kruka [31]3 years ago
6 0

y = x^2 -4x

x = -1

y = (-1)^2 - 4×-1=1+4 = 5

x= 0

y = (0)^2 - 4×0 = 0

x = 1

y = 1^2 -4×1 = 1-4 = -3

x = 2

y = 2^2 -4×2 = 4-8 = -4

x=3

y = 3^2 - 4×3 = 9-12 = -3

x = 4

y = 4^2 - 4×4 = 16 - 16 = 0

now 2nd equation

y = 2x^2 + x

x = -2

y = 2 (-2)^2 + (-2)= 8-2 = 6

x = -1

y = 2 (-1)^2+(-1)= 2-1 = 1

x = 0

y = 2(0)^2 +0 = 0

x = 1

y = 2 (1)^2 + 1 = 3

x = 2

y = 2(2)^2+2= 8 + 2 = 10

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Nataliya [291]
Answer:
Choice A: stretched horoxontally by a factor of 2 and translated up by 3 units

Explanation:
The original graph is:
y = log(x)
The modified one is:
y = log(2x) + 3

We can note that 2 changes occured:
1- A 3 has beed added to the whole gaph. This means that the curve has been moved (translated) upwards by 3 units

2- The x inside the log is miltiplied by 2. This means that the graph is stretched horizontally by the factor added (2).

Combining these two, we will find that the correct choice is A

Hope this helps :)
3 0
3 years ago
Need some help with this one.
Verizon [17]

Answer:

x² + 4x + 3

Step-by-step explanation:

to find f(g(x)), substitute x = g(x) into f(x)

f(g(x)) = f(x + 2) = (x + 2)² - 1 = x² + 4x + 4 - 1 = x² + 4x + 3


4 0
3 years ago
What is the measure of the obtuse angle?<br>a) 18<br>b) 54<br>c) 108<br>d) 216​
EleoNora [17]

Answer:

Just looking at the problem, I'd guess c) 108°

Doing the calculations, x + 3x + 6x = 180

10x = 180°

x = 18°

Angle S = 6 * 18 = 108°

Answer is c) 108°

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Suppose that the average bill for the drive through of 24 customers at Burger Palace is $14.30. It is known that the population
Mice21 [21]

The standard deviation is a measure of a collection of values' variance or dispersion. The true mean bill for a customer at Burger Palace with 95% confidence is $13.38.

<h3>What is a standard deviation?</h3>

The standard deviation is a measure of a collection of values' variance or dispersion. A low standard deviation implies that the values are close to the set's mean, whereas a high standard deviation shows that the values are spread out over a larger range.

Given that the Sample mean (\overline x) is $14.30, the Sample size(n) is 24 customers, the Standard deviation(σ) is 2.30, while for a 95% confidence interval the Z-score is 1.960. Therefore, the true mean can be written as,

Z = \dfrac{\overline x- \mu}{\frac{\sigma}{\sqrt n}}\\\\\\1.960 = \dfrac{14.30-\mu}{\frac{2.30}{\sqrt{24}}}\\\\\\1.960 = \dfrac{14.3-\mu}{0.47}

μ = 13.3788 ≈ 13.38

Hence,  the true mean bill for a customer at Burger Palace with 95% confidence is $13.38.

Learn more about Standard Deviation:

brainly.com/question/16555520

#SPJ1

5 0
2 years ago
Is 16/14 and 64/60 equivalent?
dalvyx [7]
Your answer would be No...
5 0
3 years ago
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