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schepotkina [342]
3 years ago
10

the temperature is -3 degrees. and hour later, it drops 6 degrees and 2 hours later, it rises 4 degrees. write an addition expre

ssion to describe this situation. then find the sum and explain its meaning.
Mathematics
1 answer:
alina1380 [7]3 years ago
3 0

Answer:

-3+(-6)+4=-5

Step-by-step explanation:

-3 drops 6 degrees,now -9 degrees then it rises 4 degrees which makes it now -5 degrees.

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Find an equation of the line that contains the point (-1,3) and is parallel to the line x+3y=6.
Bas_tet [7]

Answer:

Step-by-step explanation:

3y = -x + 6

y = -1/3x + 2

y - 3 = -1/3(x + 1)

y - 3 = -1/3x - 1/3

y - 9/3 = -1/3x - 1/3

y = -1/3x + 8/3

3 0
3 years ago
Can anyone help me with this please
Elenna [48]

I think that you multiply 2 with 4 to get 8 and then multiply 8 with 7 to get that number then add 2.75... to get the total.

Hope it helped..

3 0
3 years ago
Read 2 more answers
I REALLY NEED HELP , “ a company is designing a new cylindrical water bottle. the volume of the bottle will be 207 cm *to the 3r
asambeis [7]

Answer:

Radius, r = 2.80 cm

Step-by-step explanation:

Given the following data;

Volume of cylinder = 207 cm³

Height = 8.4 cm

Pie, π = 3.14

To find the radius of the water bottle;

Mathematically, the volume of a cylinder is given by the formula;

V = πr²h

Where;

V is the volume of a cylinder.

r represents the radius of the cylinder.

h represents the height of the cylinder.

Substituting into the formula, we have;

207 = 3.14 * r² * 8.4

207 = 26.376r²

r² = 207/26.376

r² = 7.85

r = √7.85

Radius, r = 2.80 cm

4 0
3 years ago
I really dont understand what to do here if you can please help
NNADVOKAT [17]

Answer:

see below

Step-by-step explanation:

The two angles form a straight line so they add to 180 degrees

5x+60   + 3x-40 = 180

Combine like terms

8x +20 = 180

Subtract 20 from each side

8x+20-20=180-20

8x= 160

Divide by 8

8x/8=160/8

x=20

5x+60 = 5*20+60 = 160

3x-40 = 3*20-40 = 20

5 0
3 years ago
Chapter 1 quiz 1. form g. do you know how? write an algebraic expression for each phrase. 1. a number x plus 11.
skelet666 [1.2K]
For this case we have the following sentence:
 "a number x plus 11"
 We want to write this phrase as an algebraic expression.
 We have then:
 a number x: x
 plus: +
 11: 11
 The algebraic expression is:
 x + 11
 Answer:
 
a number x plus 11 is:
 
x + 11
7 0
3 years ago
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