2 years ago

A definition for the therm of weight

2 answers:

6 0

A body's relative mass or the quantity of matter contained by it, giving rise to a downward force; the heaviness of a person or thing.

oksano4ka [1.4K]2 years ago

4 0

I think relative mass

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A circle has a radius of 5cm. find its area and circumference.

daser333 [38]

Answer:

A = 78.5

C = 31.4

Step-by-step explanation:

Circumference = 2πr

r = 5

C = 2(3.14)(5)

Circumference = 31.4

Area = $\pi r^2$

r = 5

A = $(3.14)(5^2)=(3.14)(25)=78.5$

5 0

2 years ago

Identify the volume of a sphere if it has a surface area of 465 square units

NeX [460]

Step-by-step explanation:

S.A = 465

4πr²= 465

r². = 36.9

r. = 6.08

volume of a sphere = 4/3πr³

= 4/3π * 6.08³

= 941.8 cm³

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2 years ago

You have a coupon for a restaurant that is 25% off. You save $3 on a meal. What was the original cost of the meal?

UkoKoshka [18]

The origonal cost of the meal is $12 dollars

8 0

2 years ago

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Elasticity is also called

balandron [24]

Another word for elasticity is also called D: responsiveness

7 0

3 years ago

Nata [24]

Answer: 15, -8

Step-by-step explanation:

$u_2=7\\u_2=u_1+r\\u_3=u_1+2r\\u_4=u_1+3r\\\\u_1+u_2+u_3+u_4=4u_1+6r=12\\u_1+r=7\\\\$

$\left \{ \begin {array} {ccc|c|c}u_1+r&=&7&-4&-6\\4u_1+6r&=&12&1&1\\\end {array} \right.\\\\\\\left \{ \begin {array} {ccc}2r&=&-16\\-2u_1&=&-30\\\end {array} \right.\\\\\\\left \{ \begin {array} {ccc}r&=&-8\\u_1&=&15\\\end {array} \right.\\\\\\Proof:\\u_1=15\\u_2=7\\u_3=-1\\u_4=-9\\sum=12\\$

6 0

2 years ago