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pav-90 [236]
3 years ago
6

The normal mean temperature in borrow Alaska is -2F in November the normal mean temperature in October is 19F warmer than in Nov

ember. What is the normal mean temperature in Octobe?
Mathematics
1 answer:
Tamiku [17]3 years ago
3 0

Answer:

   17F

Step-by-step explanation:

(-2F) +(19F) = 17F

The signed numbers add in the usual way. (If you really can't do this in your head, a calculator can help.)

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Hello!

Each time, there will be a 1/2 chance of tossing a head. Therefore, we multiply our two probabilities.

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3 years ago
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What is the perimeter of this triangle?
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7k - 3k + 11, can somebody please help me out?
Mademuasel [1]

Answer:

4k+11=4011

Step-by-step explanation:

7k - 3k=4k

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7 0
2 years ago
The length of an equilateral triangle is increased by 5 cm. The perimeter of the new triangle is 72 cm. What is the side length
Igoryamba

Answer:

19cm

Step-by-step explanation:

An equilateral triangle is a triangle where the length of the 3 sides are the same.

the perimeter is the sum of the 3 sides

for example, if the length of the side of the an equilateral triangle is 5, the perimeter is 5 x 3 = 15

let x = unknown length of side

length after increase = x + 5

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divide both sides of the equation by 3

x + 5 = 24

subtract 5 from both sides of the equation

x = 24 - 5 = 19cm

6 0
3 years ago
Rewrite the polynomial 2x2 + x + +-7x + 1 in standard form.​
sveticcg [70]

Answer:

x-7x+5

Step-by-step explanation:

4+x-7x+1

x-7x+5

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2 years ago
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