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Hatshy [7]
3 years ago
13

Find the value of this expression if x=-1

Mathematics
1 answer:
tatiyna3 years ago
5 0

Answer:

2

Step-by-step explanation:

-1^2+7

1+7 =8

-1 +5 =4

8/4  =2

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If you know the ratio of inches to centimeters is 1 to 2.54, how can you find the number of centimeters equivalent to 9 inches?
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3 years ago
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When a cold drink is taken from a refrigerator, its temperature is 5°C. After 25 minutes in a 20°C room its temperature has incr
Andrews [41]

Answer:

  (a)  13.85 °C

Step-by-step explanation:

The temperature difference is a decaying exponential function of time. Here, it decreases from an initial difference of 15 °C to 10 °C after 25 minutes. So, that temperature difference can be modeled as ...

  ΔT = 15(10/15)^(t/25)

We want to find the value of this at t=55. It is ...

  ΔT = 15(2/3)^(55/25) ≈ 6.15

This is the amount the temperature of the drink is below room temperature.

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The temperature of the drink after 55 minutes is about 13.85 °C.

3 0
3 years ago
In his last game the Rams” quarterback threw 18
Marrrta [24]

the answer is 15 complete passes

8 0
2 years ago
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Duane and mick are saving their money to build a tree house. Duane adds $5 to their piggy bank every other week. Mick adds $2 er
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8 0
3 years ago
Find the number, d, if the sum of five times d and five times five is a<br> hundred.
Gelneren [198K]

The value of d from the given expression is 15

<h3>Word problem leading to equation</h3>

From the given statement the sum of five times d and five times five is a

hundred is interpreted as;

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Hence the value of d from the given expression is 15

Learn more on word problem here: brainly.com/question/13818690

#SPJ1

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2 years ago
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