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alekssr [168]
3 years ago
11

ツ---Graph y=-x^2-2. Identify the vertex of the graph.Tell whether it is a minimum or maximum.---ツ

Mathematics
2 answers:
balandron [24]3 years ago
7 0

Hey!

Hope this Helps...

~~~~~~~~~~~~~~~~~~~~~~~~~

Below, I added what the graph of (x^2)-2 looks like...

The answer is A. (0, -2); Minimum

eimsori [14]3 years ago
7 0

Answer:

the correct answer is option C because it is maximum at (0,-2)

Step-by-step explanation:

given equation,

y = -x² -2

to find maxima and minima we will differentiate the equation

\frac{\mathrm{d} y}{\mathrm{d} x}=-x^2-2

\frac{\mathrm{d} y}{\mathrm{d} x}=-2x\\\frac{\mathrm{d} y}{\mathrm{d} x}=-2

hence we can see that double differentiation is - ve so the equation will maximum.

hence, now putting value from option C

the value of y comes out to be -2

now, putting value from option D

value of y comes out to be -6

hence, the correct answer is option C because it is maximum at (0,-2)

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Find the measure of the missing value in the
kumpel [21]

Answer:

12.6

Step-by-step explanation:

The two left sides have lengths, so this allows you to establish the ratio of the lengths of the sides of the triangles,

left triangle : right triangle

ratio = 25 : 17.5

The bottom sides are also in the same ratio.

ratio = 18 : w

Write a proportion by setting the ratios equal and solve for w.

25/17.5 = 18/w

Cross multiply.

25w = 17.5 * 18

25w = 315

w = 12.6

Answer: 12.6

4 0
3 years ago
A system of linear equations is given by the graph. Okie what is the system shown?
SVETLANKA909090 [29]

Answer:

I think the answer is A.

Step-by-step explanation:

all of the other ones dont seem to line up with the graph.

6 0
3 years ago
Read 2 more answers
The length of a rectangle is 5 times the width. If the perimeter is to be greater than 36 meters. What are the possible values f
Lostsunrise [7]

Answer:

  The width must be greater than 3 meters.

Step-by-step explanation:

Let w represent the width. Then 5w will represent the length, which is 5 times the width. The perimeter is the total of the side lengths of the rectangle, so is ...

  P = 2w + 2(5w) = 12w

We want this to be greater than 36 m, so ...

  P > 36 m

  12w > 36 m . . . . . . . substitute our expression for P

  w > 3 m . . . . . . . . . . divide by 12

The possible values for width are those values that are more than 3 meters.

3 0
3 years ago
Pls help asap!!!
wlad13 [49]

Answer:

negative 2.5

Step-by-step explanation:

It is belove sea level, so it will be between negative 2 and negative 3 on a vertical number line.

4 0
3 years ago
A study was conducted to compare the proportion of drivers in Boston and New York who wore seat belts while driving. Data were c
In-s [12.5K]

(A.)test statistic for this test using Ha: p8くPN is Z = -2.164 (B.) p-value (3 decimal places) is 0.015. (C.) Based on this p-value, which of the following would you expect for a 95% is negative. (D.) the correct conclusion is The proportion of Boston drivers wearing seat was significantly lower than the proportion of new York drivers wearing seat belts.

A.)

According to given data find the test statistic for this test using Ha:

p1 = 0.581

p2 = 0.832

standard error = SE = 0.116

<h3>Test statistics :-</h3>

Z = \frac{p1 - p2}{SE}

Z = \frac{0.581 - 0.832}{0.116} = -2.164

Z = -2.164

B.)

According to given Determine the p-value (3 decimal places).

<h3>p - value</h3>

it is left tailed test.

p - value for left tailed test is,

p - value = P(Z < test statistics )

p - value = P(Z < -2.164)

P - value = 0.015

C.)

Based on this p-value, which of the following would you expect for a 95%

confidence level = 95% = 0.95

significance level = α = 0.05

P -value is less than 0.05

so, reject null hypothesis at α = 0.05

That is P_{B} < P_{NY}

so, based on P - value , All values in the 95% confidence interval

PB - PNY  is negative.

D.)

According to given data What is the correct conclusion?

Reject null hypothesis at α = 0.05

so, P_{B} < P_{NY}

Hence, The proportion of Boston drivers wearing seat was significantly lower than the proportion of new York drivers wearing seat belts.

know more about test statics visit this link

brainly.com/question/23332597

#SPJ4

3 0
1 year ago
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