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nalin [4]
3 years ago
11

Which expression is equivalent to 2(3−4)−(8+3)?

Mathematics
2 answers:
horrorfan [7]3 years ago
7 0

Answer:

-13

Step-by-step explanation:

2(3-4)-(8+3)

2(-1)-(11)

-2-(11)

=-13

Korvikt [17]3 years ago
3 0

Answer:20

Step-by-step explanation:

2(3-4)-(8+3)                                                                                                                                  

2(1)-(11)

2-22

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What is -11 2/3 - (-4 1/5)
rosijanka [135]

Answer:

-7 7/15

Step-by-step explanation:

-11 2/3 -(-4 1/5) = -11 2/3 + 4 1/5. Now, we need to find the LCM of 3 and 5. The LCM of 3 and 5 is 15 because 15 is the lowest number that can divide both 3 and 5 separately and both results will still be whole numbers.

Now, we have -11 10/15 + 4 3/15.

-11 10/15 + 4 3/15 = -7 7/15.

4 0
2 years ago
Which is true of an adjustable rate mortgage?
Leni [432]
The answer for this question is B
4 0
3 years ago
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Kevin earns $95 a day after taxes at his job. He pays $5.75 each day for a round trip subway ticket. If Kevin works 5 days a wee
algol [13]

Answer: $446.25

Step-by-step explanation: If Kevin earns $95 per day after taxes and spends $5.75 for a subway ticket he has $95.00 - $5.75 = $89.25 left per day.

The calculate the amount for 5 days you need to multiply $89.25 by 5 = 5 x $89.25 = $446.25.

5 0
3 years ago
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How to estimate to check that the answer is reasonable
avanturin [10]
Basically estimating is rounding, im going to futher explain this with an example.
For example:
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(*example)
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now
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8 0
3 years ago
Y=−3(2.5)x
Hoochie [10]

Answer:

1. The equation represent an exponential decay

2. The rate of the exponential decay is -3×2.5ˣ·㏑(2.5)

Step-by-step explanation:

When a function a(t) = a₀(1 + r)ˣ has exponential growth, the logarithm of x grows with time such that;

log a(t) = log(a₀) + x·log(1 + r)

Hence in the equation -3 ≡ a₀, (1 + r) ≡ 2.5 and y ≡ a(t). Plugging in the values in the above equation for the condition of an exponential growth, we have;

log y = log(-3) + x·log(2.5)

Therefore, since log(-3) is complex, the equation does not represent an exponential growth hence the equation  represents an exponential decay.

The rate of the exponential decay is given by the following equation;

\frac{dy}{dx} =\frac{d(-3(2.5)^x)}{dx} = -\frac{d(3\cdot e^{x\cdot ln(2.5)})}{dx} = -3 \times 2.5^x\times ln(2.5)

Hence the rate of exponential decay is -3×2.5ˣ × ㏑(2.5)

5 0
3 years ago
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