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frez [133]
3 years ago
6

Which relation is a function?

Mathematics
1 answer:
Afina-wow [57]3 years ago
6 0

Answer:

First and last

Step-by-step explanation:

The first one is a parabola wich is function graph

The last one is straight line

the second isn't a function since some numbers give many values

the thirs is a cercle

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Two points on a line L are (5,2) and (7,-4). what is the slope of L
klemol [59]

Answer:

-3

Step-by-step explanation:

The slope of a line can be calculated with the formula (y2-y1)/(x2-x1)

In this case we have:

(-4-(2))/(7-5)

(-6)/(2)

-3

Let me know if this helps!

8 0
3 years ago
What digits can be in the ones place of a number that has five as a factor?
choli [55]
There can be 0s and 5s
7 0
4 years ago
Given two sets of polar coordinates that could be used to play the given point
topjm [15]

Answer:  a.  (2.5, 300°)  and  (-2.5, 120°)

               b.  (4, 270°)    and   (-4, 90°)

<u>Step-by-step explanation:</u>

Polar coordinates are written as (r, θ)    where

  • r is the radius
  • θ is the angle

In the first graph, the radius is 2.5 and the angle is 300° --> (2.5, 300°)

You can also list the radius as -2.5 at angle 120° --> (-2.5, 120°)

                                                                           ↓

                                                                    (300 - 180)

In the second graph, the radius is 4 and the angle is 270° --> (4, 270°)

You can also list the radius as -4 at angle 90° --> (-4, 90°)

                                                                      ↓

                                                                (270 - 180)

5 0
3 years ago
. Dinah bought 3 packages of ground beef. The packages weigh 3 3/4 pounds, 1 1/8 pounds, and 2 1/2 pounds. How many pounds of gr
IgorC [24]

Answer:

6 3/8

Step-by-step explanation:

Convert the fractions so that the denominators match.

3\frac{3}{4} =3\frac{6}{8}, then 3\frac{6}{8}=\frac{30}{8}

1\frac{1}{8}=\frac{9}{8}

2\frac{1}{2}=\frac{3}{2}, then \frac{3}{2}=\frac{12}{8}

Add up the fractions.

\frac{30}{8}+\frac{9}{8}+\frac{12}{8} =\frac{51}{8} =6\frac{3}{8}

8 0
3 years ago
Read 2 more answers
Which number line represents the solution set for the inequality -1/2x&gt;4?
jasenka [17]

Answer:

2nd Option

Step-by-step explanation:

Hello!

First, let's solve the inequality for x.

<h3>Solve for x</h3>
  • -\frac12x  \ge 4
  • x \le-8

Since the symbol is less than or equal to, it will be a closed circle on Point -8 going in the left direction (all values less than -8).

The answer is the Second Number Line.

8 0
2 years ago
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