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2 years ago

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

Mathematics

1 answer:

lawyer [7]2 years ago

5 0

Answer:

(0,-2)

maximum

Step-by-step explanation:

-x∧2-2 = -1 (x∧2) -2

so the vertex should be (0,-2)

As it is negative for the x∧2, so the graph opens downwards. So, the vertex is a maximum.

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Select all the expressions that are equivalent to –8.

kvasek [131]

Answer:

-8-8-8

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Solve. 3t < –15 (1 point)<br> t < –5<br> t > –5<br> t < –45<br> t > –45

Kipish [7]

I hope this helps you

3t÷3 < -15÷3

t < -5

8 0

3 years ago

What is the rate of change of the volume of the cylinder at that instance (in cubic kilometers per second)?

Kay [80]

Answer:

hello your question is incomplete attached below is the complete question

answer : -2400 π

Step-by-step explanation:

dr/dt = -12 km/s

h = 2.5 km

r = 40 km at some instant

hence the rate of change of Volume of cylinder at that instance

= dv / dt = $d(\pi r^h ) / dt$

= $\pi h\frac{d(r^2)}{dt}$ = $-\pi h *2r *dr/dt$

hence ; dv / dt = -2400 π

3 0

2 years ago

Find the volume of the given prism. Round to the nearest tenth if necessary.

BigorU [14]

Answer: 616

Explanation:

When finding the volume of an object use: LxWxH

L=14

W=11

H=4

Now multiply 14x11x4=616

-LizzyIsTheQueen

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3 years ago

At what point of the curve y = cosh(x) does the tangent have slope 3?

Rus_ich [418]

Answer:

(1.82, 3.17)

Step-by-step explanation:

Given the curve:

y = cosh(x)

we need that the tangent has slope 3. The tangent of a curve in a given point is found with its derivative.

dy/dx = sinh(x) = 3

From the plot of sinh(x), we get:

x ≈ 1.82

Replacing into cosh(x), we get:

y = cosh(1.82) ≈ 3.17

Then, at point (1.82, 3.17) the tangent is 3

3 0

2 years ago