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3 years ago

Is (-1,6), (2,8), (3,6), (13,-4), (20.5,0) a function What’s the domain and range?

Mathematics

1 answer:

EleoNora [17]3 years ago

5 0

Yes it is a function.

The domains are -1, 2, 3, 13, 20.5

The ranges are 6, 8, 6, -4, 0

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5(3−x)>−2x+6 PLS ANSWER ASAP WILL GIVE BRAINLIEST

rusak2 [61]

Answer:

x<3

Step-by-step explanation:

5(3-x)>-2x+6

15-5x>-2x+6

-5x>-2x-9

-3x>-9

x<3

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3 years ago

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in the past year tom watched 4 movies that he thought were very good. he watched 40 movies over the whole year. Of the movies he

balandron [24]

10% of the movies, because 100/40 is 2.5 so you would do 4 x 2.5 which equals 10. AKA
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3 years ago

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Which line has a larger slope?

nexus9112 [7]

Answer:

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3 years ago

Natalie is playing the Integer Game and only shows you the four cards shown below. She tells you that the rest of her cards have

leva [86]

Missing part of question

(a) If all matching cards will increase her score by 18, what are the matching cards

(b) If all matching cards will decrease her score by 12, what are the matching cards

See attachment for cards

Answer:

(a) 9 card number 2 or 6 card number 3

(b) 6 card number -6

Step-by-step explanation:

Given

The number on the cards are: 2, 3, -6 and 4

Solving (a): An increment of 18

From the card numbers attached, there are 3 positive numbers and 1 negative number

If any of the card numbers is to increase her score, then the card number must be positive. So, we have: card numbers 2, 3 and 4 that fit in this category.

Next, for a card number to give an increment of 18; the card number must be a factor of 18.

So, we have:

$\frac{18}{2} = 9$

$\frac{18}{3} = 6$

$\frac{18}{4} = 4.5$

Only 2 and 3 are factors of 18.

So, Natalie cards are: 9 card number 2 or 6 card number 3

Solving (b): A decrement of 12

If any of the card numbers is to decrease her score, then the card number must be negative. So, we have: card -6 that fit in this category.

Next, is to check if -12 is divisible by -6 (-12 means decrement of 12)

So, we have:

$\frac{-12}{-6} = 2$

<em>So, Natalie cards are: 6 card number -6</em>

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3 years ago

You are going on a field trip in a school bus. A special detector placed on one of the bus's tires counts the number of rotation

Akimi4 [234]

The way tires on wheels work is that when the wheel turns one complete
turn, it moves (forward or backward) by a distance that's the circumference
of the tire.

Now, we know that the circumference of a circle is (π) times the diameter.
The diameter of the tire on this bus is 1 meter. So its circumference is
(π · 1 meter), and every time it turns once, the bus moves 1 meter down
the road.

If the tire rotated 8,000 times, then the bus moved 8,000π meters,
or 8π kilometers.

THAT's the exact answer. If you want to know how far that actually is,
then you take some number that's approximately π and multiply it by
8 km. You can never get an exact answer like that, because you can
never write the exact value of π with digits.

In school, we often use ' 3.14 ' for π . If you do that, then the bus
traveled

(8 km) x (3.14) = 25.1 kilometers .

When you do that, you have to remember that it's approximate.
If you want an exact answer, then you have to leave π in the answer.

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4 years ago

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