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4 years ago

Heather is going to graph y = -3x2 + 3. How is the parent graph transformed?

Mathematics

2 answers:

Olenka [21]4 years ago

6 0

i belive the answer is A..

Yuki888 [10]4 years ago

3 0

Any x² graph is a parabola. The negative in front is going to flip the parabola upside down to look like a camel hump. The 3 is going to make the graph narrower. The three at the end makes the y intercept 3. So the top of the graph will be shifted up to (0,3).
The answer would be A I believe

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A student wanted to construct a 95% confidence interval for the mean age of students in her statistics class. She randomly selec

Alex_Xolod [135]

Answer:

95% confidence interval for the population mean is 20.255 and 17.945

Step-by-step explanation:

given data

mean = 19.1

standard deviation = 1.5

n = 9

to find out

95% confidence interval for the population mean

solution

we know 95% confidence interval formula i.e.

mean +/- t * standard deviation/ $\sqrt{n}$ .............1

here t for 9 students 2.31 ( from t table)

so put all value n t standard deviation and mean in equation 1

= mean +/- t * standard deviation/ $\sqrt{n}$

= 19.1 +/- 2.31 * 1.5/ $\sqrt{9}$

= 20.255 and 17.945

95% confidence interval for the population mean is 20.255 and 17.945

7 0

3 years ago

Х= m<J= m<M = ..............

Oksi-84 [34.3K]

Answer:

x = 14

Step-by-step explanation:

10x - 33 + 4x + 17 = 180

14x - 16 = 180

14x = 196

x = 14

4 0

2 years ago

7 + (5+49) -72/6 • 2

Ostrovityanka [42]

Answer:37

Step-by-step explanation:

7+(5+49)-(72/6)(2)

7+54-(12*2)

7+54-24

5 0

4 years ago

Read 2 more answers

Need help btw i am in middle school

lorasvet [3.4K]

Answer:2

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6 0

3 years ago

Read 2 more answers

Please help!! Find the x.

maw [93]

Answer:

Step-by-step explanation:

1. Write an equation to represent the ratio of the sides to the corresponding sides in the second figure.

6/9 = x/15

6 and x are both numerators because they are corresponding sides and 9 and 15 are both numerators because they are corresponding sides.

2. Solve for x.

multiply both sides by 9

6 = 9x/15

multiply both sides by 15

90 = 9x

solve for x by dividing both sides by 9

x = 10

*sorry if the explanation was confusing but I hope you understand with the equation and numbers

8 0

4 years ago