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Murljashka [212]
3 years ago
8

1.what property is shown? -8 + (-15) = (-15) + (-8)

Mathematics
1 answer:
astra-53 [7]3 years ago
8 0
1) would be opposite of a sum property

2) it would be D
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A young sumo wrestler decided to go on a diet to gain weight rapidly. He gained weight at a rate of 5.5kg a month. After 11 mont
kondaur [170]

Answer:

W(t)=5.5t+79.5.

Step-by-step explanation:

Please consider the complete question.

A young sumo wrestler decided to go on a special high-protein diet to gain weight rapidly. He gained weight at a rate of 5.5 kilograms per month. After 11 months, he weighed 140 kilograms. Let W(t) denote the sumo wrestler's weight W(measured in kilograms) as a function of time t (measured in months).  

Since wrestler gained weight at a rate of 5.5 kilograms per month, so slope of line be 5.5.

Now, we will use point-slope form of equation as:

y-y_1=m(x-x_1), where,

m = Slope

(x_1,y_1) = Given point on the line.

Upon substituting coordinates of point (11,140) in above formula, we will get:

y-140=5.5(x-11)

y-140=5.5x-60.5

y-140+140=5.5x-60.5+140

y=5.5x+79.5

Therefore, our required function would be W(t)=5.5t+79.5.

3 0
3 years ago
What is the answer so I can answer it on my side of the phone
amm1812

Answer:

C. 134.04 cm^{2}

Step-by-step explanation:

The formula to calculate the volume of the cone is:

+) <em>Volume of a cone = 1/3 x Area of base x Height</em>

<em />

The base of the cone is a circle, so that the formula to calculate the are of the base is: <em>Area of base = </em>\pi x radius^{2}

The radius of the base is 4cm

=> <em>Area of base = </em>\pi x 4^2 = 3.14 x 16 = 16\pi cm^{2}

The height of the cone is given equal to 8 cm

So the volume of the cone is:

+) <em>Volume of a cone = 1/3 x Area of base x Height = 1/3 x 16</em>\pi<em> x 8 = 134.04 </em>cm^{2}<em />

<em />

So the answer is C

5 0
3 years ago
How to do number 2 ?
kakasveta [241]

you will need to add.

7 0
3 years ago
Proving lines parallel!!! please help
Fynjy0 [20]

Answer:

B.

Step-by-step explanation:

Since C and A are parallel

and B is perpendicular to C

then B is also perpendicular to A

meaning they have the same angle so 90 Degrees.

4 0
3 years ago
The formula y - y 1 = m(x - x 1 ) is the point-slope form of the equation of a line where m is the
rewona [7]

Answer:

m=2

Step-by-step explanation:

0-(-2) / 5-4 = 2/1

m =2

The slope is 2 for the given points!

Hope that helps!

3 0
3 years ago
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