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3 years ago

PLEASE HELP ASAP (MORE THEN ONE ANSWER)

1 answer:

6 0

When we say "closed under addition" in the context of rational numbers, we mean to say that when we add up rational numbers then, the sum is also a rational number.

From the given choices above, the one that should the characteristic of being "closed under addition" is only fourth equation. Both 1/2 and 0.5 are rational numbers. On the other hand, 1 is also a rational number.

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A line has an equation of y = - 3x + 8. What is the y-intercept of the line? Please enter your answer as a coordinate (x, y). *

mina [271]

Answer:

(0, 8).

Step-by-step explanation:

The y intercept occurs when = 0, so we have the equation:

y = -3(0) + 8

y = 0 + 8

y = 8.

The answer is (0, 8).

6 0

3 years ago

What is 5 over 1-6 in the form of a and b

Ilya [14]

Can someone please help me answer this problem

7 0

3 years ago

Lines a and b are parallel. The slope of line b is 1/3. What is the slope of line a?

Viefleur [7K]

Answer:

1/3

Step-by-step explanation:

Parallel lines have the same slope.

Therefore, if the slope of line b is 1/3, the slope of line a is also 1/3

8 0

2 years ago

9999999999999999999999999999999999999+888888888888888888888888888888888888

alexandr1967 [171]

Answer:

a lot

Step-by-step explanation:

3 0

3 years ago

a point on the rim of a wheel moves with a velocity of 80 feet per second. What is the angular velocity of the point if the diam

valentina_108 [34]

The angular velocity is 16 radians per second

<u>Solution:</u>

The angular velocity of point is given by formula:

$w = \frac{v}{r}$

Where,

w is the angular velocity in radians

v is the linear velocity

r is the radius

Given that diameter of wheel is 10 feet

$radius=\frac{diameter}{2}$

$radius = \frac{10}{2}=5$

Thus radius is 5 feet

A point on the rim of a wheel moves with a velocity of 80 feet per second

Linear velocity = v = 80 feet per second

Therefore, angular velocity is given as:

$w = \frac{80}{5} = 16$

Thus angular velocity is 16 radians per second

6 0

2 years ago