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kipiarov [429]
3 years ago
14

Tanner measured the rate of oil draining from a tank. His measurements showed that the relationship betwđen the height (in inche

s) of the oil in the tank, h,
and the time in minutes) that the oil was draining, t. could be modeled by the equation h = 8 -0.25t.
According to the model, how long will the oil need to drain for the height to decrease by 1 inch?
0.25 minutes
1 minute
4 minutes
8 minutes
Mathematics
1 answer:
podryga [215]3 years ago
3 0

Answer:

8

Step-by-step explanation:

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Two cards are randomly selected from an ordinary playing deck.
Anna007 [38]

Answer:

The required probability is 0.048

Step-by-step explanation:

Consider the provided information.

Out of 52 card we need to select only 2.

Therefore the sample space is: ^{52}C_2=1326

One card is Ace. The number of Ace are 4 and we need to select one of them.

This can be written as: ^4C_1=4

The second card can be Ten or a Jack or a Queen or a King.

There are 4 Ten, 4 jack, 4 Queen, and 4 king in a deck and we need to select only 1 out of them.

So we can say that we need to select 1 card out of 16.

This can be written as: ^{16}C_1=16

Thus, the probability that one of the cards is an ace and the other one is either a ten, a jack, a queen or a king is:

P=\frac{16\times4}{1326}\approx0.048

Hence, the required probability is 0.048

3 0
4 years ago
HELP ME PLEASE!!<br> is y=2x^2 - 4 linear or non linear
OleMash [197]

Answer:

non-linear

Step-by-step explanation:

Linear functions can only have powers of 1 for the x and y terms and the terms must not be multiplied.

The function y =2x^2-4  has a power of 2 on the x so it is not linear.  It is parabolic.

6 0
3 years ago
The function f(x)=−3x+2 is defined over the domain −1
DENIUS [597]

Answer:

Yes.

Step-by-step explanation:

f\left(x\right)=-3x+2

f\left(-1\right)=-3(-1)+2

y=f(-1)=5

The domain of this function is all Real numbers \:\left(-\infty \:,\:\infty \:\right)

\{x \in \mathbb{R}: -\infty \:

7 0
3 years ago
I'm having trouble with this<br><br> -9x + 4y = 55<br> -11x + 7y = 82
lubasha [3.4K]

Answer:

Step-by-step explanation:

99x - 44y = -605

-99x + 63y = 738

19y = 133

y = 7

-9x + 28 = 55

-9x = 27

x = -3

(-3, 7)

7 0
4 years ago
Read 2 more answers
The volume of a cube is 1.8 m3. Find the length of its edge to the nearest tenth of a
Firdavs [7]

The length of an edge is the cubic root of the volume.

Cubic root 1.8 = 1.2 meters

5 0
3 years ago
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