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3 years ago

Which statement describes the translation of y = −one half (x − 2)2 − 2 from standard position?

1 answer:

5 0

A quadratic in vertex form can be represented as

$y = a(x-h)^{2} +k$

a represents reflection over the x-axis, and a vertical stretch or compress
- is reflection and a fraction (1/2) represents a compression.

-h represents a shift of that many units to the right (-2 shifts to the right two units)

k represents a shift up or down (-2 is shifting down 2 units_

Reflected over the x-axis, Vertically compressed by a factor of 1/2, shifted 2 units to the right, and shifted 2 units down

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NEED HELPPP, ALL MY POINTS

fgiga [73]

Answer:

see step by step

Step-by-step explanation:

sqrt 49

sqrt 64

sqrt 81

sqrt 100

perfect squares are always rational numbers because when solving any of these square roots they make whole numbers.

8 0

2 years ago

PLLLLLLLEAAAASSE hELPPPPP i WILL GIVE BRAINLIEST TO THE FIRST PERSON WHO ANSWERS CORRECTY!!!!

iren [92.7K]

Hello there,

The answer will be 15 students.

<h3>Step-by-step explanation:-</h3>

We will solve the equation as follows:-

First add the total of the students in band and chorus -

→ 70 + 95 = 165

Then subtract the previously got number with given number of chorus students:-

→ 165 - 150 = 15

So, there are 15 students who are there in both band and chorus.

✍️ By Benjemin ☺️

5 0

2 years ago

Help please due in in 10 minutes

ElenaW [278]

Answer:

answer is G

zeros are 3, -5

brainlist if you get this right please :)

8 0

2 years ago

Toxaphene is an insecticide that has been identified as a pollutant in the Great Lakes ecosystem. To investigate the effect of t

Likurg_2 [28]

Answer:

This data suggest that there is more variability in low-dose weight gains than in control weight gains.

Step-by-step explanation:

Let $\sigma_{1}^{2}$ be the variance for the population of weight gains for rats given a low dose, and $\sigma_{2}^{2}$ the variance for the population of weight gains for control rats whose diet did not include the insecticide.

We want to test $H_{0}: \sigma_{1}^{2} = \sigma_{2}^{2}$ vs $H_{1}: \sigma_{1}^{2} > \sigma_{2}^{2}$ . We have that the sample standard deviation for $n_{2} = 22$ female control rats was $s_{2} = 28$ g and for $n_{1} = 18$ female low-dose rats was $s_{1} = 51$ g. So, we have observed the value

$F = \frac{s_{1}^{2}}{s_{2}^{2}} = \frac{(51)^{2}}{(28)^{2}} = 3.3176$ which comes from a F distribution with $n_{1} - 1 = 18 - 1 = 17$ degrees of freedom (numerator) and $n_{2} - 1 = 22 - 1 = 21$ degrees of freedom (denominator).

As we want carry out a test of hypothesis at the significance level of 0.05, we should find the 95th quantile of the F distribution with 17 and 21 degrees of freedom, this value is 2.1389. The rejection region is given by {F > 2.1389}, because the observed value is 3.3176 > 2.1389, we reject the null hypothesis. So, this data suggest that there is more variability in low-dose weight gains than in control weight gains.

8 0

3 years ago

Consider this right triangle with given measures.

OlgaM077 [116]

Answer:

$\sqrt{39}$

Step-by-step explanation:

I think the answer choices were supposed to be:

$\sqrt{3} , \sqrt{6} , \sqrt{39} , \sqrt{89}$

Pythagorean Theorem: a²+b²=c²

5²+b²=8²

25+b²=64

Subtract 25 from both sides

b²=39

Square root both sides

b= $\sqrt{39}$

Our answer is $\sqrt{39}$

8 0

3 years ago

Read 2 more answers