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Dmitry_Shevchenko [17]
3 years ago
5

The present temperature is 5°C. The weather forecaster expects the temperature to fall 8 degrees during the night. How cold will

it get?
A: -3°C
B: 3°C
C:-13°C
D: 13°
Mathematics
1 answer:
Reptile [31]3 years ago
8 0
The correct answer is A, -3 degrees Celsius.
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Convert the mixed number to an improper fraction. 5 1/5...
I am Lyosha [343]
5=1+1+1+1+1
1=5/5
5=5/5+5/5+5/5+5/5+5/5=25/5
5 and 1/5=5+1/5=25/5+1/5=26/5 which is C
7 0
3 years ago
Use the normal distribution of fish lengths for which the mean is 11 inches and the standard deviation is 2 inches. assume the v
Kaylis [27]

To solve this problem, we make use of the z statistic. What we have to do here is to find for the z score using the given data and from the standard probability tables for z, we locate the proportion of the fish longer than 12 inches.

 

The formula for calculating the z score is:

z = (x – μ) / σ

where,

x = the sample value = 12 inches

μ = the sample mean = 11 inches

σ = 2 inches

 

so,

z = (12 – 11) / 2

z = 1 / 2

z = 0.5

 

Since we are looking for the values greater than 12, so this is a right tailed test. Using the tables, the value of p at this value of z is:

p (z = 0.5) = 0.3085

 

Therefore there is a 30.85% probability that the fish is longer than 12 inches.

3 0
3 years ago
Ray is buying some ginger roots to brew some fresh ginger ale. The price of the ginger root is g, and Ray has a coupon for 10% o
kondaur [170]

Step-by-step explanation:

Comparision: Let say you buy chocolate that cost $1. And there was luckily a coupon, for 10% off.

That means after applying the coupon, you will only pay 90% of the original price. Which is

0.9(1) = 0.9

which equals 90 cents.

So let go back to this problem and apply similar thinking.

The price of the original root is g, so for the original price column, check the 3rd cell, g.

Use our comparision problem, by applying the coupon to the chocolate, you will save

1 - 0.9 = 0.1

which is 1/10 of the original price.

In this equation, we can represent this as 0.1g.

So for the second column, shade in 5th cell, 0.1g.

The price would be

(0.9)1 = 0.9

So our equation for this equation will be

0.9g.

So for third column, shade in 1st cell, 0.9g.

7 0
2 years ago
Please help its due tonight!!
Lynna [10]

Answer:

your really think ik the answer

Step-by-step explanation:

yea the  sorry

8 0
3 years ago
Read 2 more answers
1+2+3+4+5+6+7+8+9+1+2+3+4+5+6+7+8+9+10 times 2
Maksim231197 [3]

Answer:

200

Step-by-step explanation:

<u>Step 1:  Add</u>

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10

1 + 2 = 3

3 + 3 = 6

6 + 4 = 10

10 + 5 = 15

15 + 6 = 21

21 + 7 = 28

28 + 8 = 36

36 + 9 = 45

45 + 1 = 46

46 + 2 = 48

48 + 3 = 51

51 + 4 = 55

55 + 5 = 60

60 + 6 = 66

66 + 7 = 73

73 + 8 = 81

81 + 9 = 90

90 + 10 = 100

<em>100</em>

<u>Step 2:  Multiply</u>

100 * 2

<em>200</em>

Answer:  200

6 0
3 years ago
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