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3 years ago

(HELP PLEASE) The inverse of G(x) is a function.

Mathematics

2 answers:

ivann1987 [24]3 years ago

8 0

Answer:B.false

Step-by-step explanation:apexs

nirvana33 [79]3 years ago

3 0

Answer:

False.

Step-by-step explanation:

Apex

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Last summer, Brianna planted 2 plants

Volgvan

Answer: how many square feet are there? multiple each square foot by 2

Step-by-step explanation:

4 0

3 years ago

If a snowball melts so that its surface area decreases at a rate of 9 cm2/min, find the rate (in cm/min) at which the diameter d

zhuklara [117]

Answer:

The diameter decreases at a rate of 0.143cm/min when it is of 10 cm.

Step-by-step explanation:

Surface area of an snowball:

An snowball has spherical format. The surface area of an sphere is given by:

$S = d^2\pi$

In which d is the diameter of the sphere.

In this question:

We need to differentiate S implicitly in function of time. So

$\frac{dS}{dt} = 2d\pi\frac{dd}{dt}$

Surface area decreases at a rate of 9 cm2/min

This means that $\frac{dS}{dt} = -9$

At which the diameter decreases when the diameter is 10 cm?

This is $\frac{dd}{dt}$ when $d = 10$ . So

$\frac{dS}{dt} = 2d\pi\frac{dd}{dt}$

$-9 = 2(10)\pi\frac{dd}{dt}$

$\frac{dd}{dt} = -\frac{9}{20\pi}$

$\frac{dd}{dt} = -0.143$

Area in cm², so diameter in cm.

The diameter decreases at a rate of 0.143cm/min when it is of 10 cm.

8 0

3 years ago

Solve the following system of equations. 2x+y = 3 x=2y – 1 x= y=

qaws [65]

Answer:

y=1 x=1

Step-by-step explanation:

2x + y = 3

x = 2y - 1

It looks like I could substitute the x=2y-1. Into 2x+y=3

2(2y-1)+y=3

4y-2+y=3

5y=5

y=1

x=2(1)-1

x=1

4 0

3 years ago

The measure of 2 ACD is 147º and the measure of Z BAC is 29º. What is the measure of Z ABC?

Maru [420]

Answer:

Answer is option c) 118 degrees

Step-by-step explanation:

$the \: exterior \: angle \: is \: equal \: to \: the \: \\ sum \: of \: the \: opposite \: interior \: angles \\ by \: using \: this \: concept \: \: we \: find \: that \\ angle \: abc \: is \: 118 \: degrees.$

If you have any doubts see the image. or write in comments box.

HAVE A NICE DAY !

8 0

3 years ago

A dart hits the board. What is the probability

Elena L [17]

Answer: The probability is 0.5

Step-by-step explanation:

The probability will be equal to the quotient between the area of region II, and the total area of the board (supposing that the probability of hitting in any place is equal)

The total area of the figure is equal to

Area = (15' + 35')*(8' + 20') = 50'*28' = 1400 in^2

Now, the area of region II is:

Region II = 20'*35' = 700

Then the probability is:

P = 700/1400 = 1/2 = 0.5

3 0

3 years ago