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Rama09 [41]
3 years ago
8

Which of the following is a function? A.) {(-2, -4/5), (-1,-1),(0,0),(-1,-1)} B.) {(-2,0),(0,1/2),(0,3/4),(1,1)} C.) {(-2,1),(-1

,0),(0,1),(-2,2)} D.) {(-2,4),(-1,1),(0,0),(1,1)}
Mathematics
1 answer:
Orlov [11]3 years ago
6 0

Answer:

D.

Step-by-step explanation:

A function, by the easy-to-understand definition, is a relation where no x values are shared.  The only set where each x value is different is in D.  All the other sets share the same x value.  Example:  Set C has coordinates (-2, 1) and (-2, 2).  The x coordinates are the same, so this isn't a function.  It is only a relation.

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7.42 is what percent of 50 ​?
Debora [2.8K]
3.71 is the answer:)
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5 0
3 years ago
A community is building a square park with sides that measure 150 meters. To separate the picnic
Firlakuza [10]

Answer:

212 meters

Step-by-step explanation:

The diagonal of a square is the square root of 2 times the length of the square. This can be rewritten as the square root of (2*area)

2 * 22500 = 45000

The square root of 45000 is about 212.13, which would round down to 212 meters.

7 0
3 years ago
For a school fundraiser mai will make school spirit bracelets. She will order bead wiring and alphabet beads to create the schoo
Andreas93 [3]

Answer:

235 bracelets

Step-by-step explanation:

Mai must spend $250 on wire and $5.30 per bracelet beads. Mai creates the expression.

We are given the equation:

5.3n+ 250 to represent the cost of making n bracelets.

The maximum number of bracelets Mai can make with a budget of $1500 Is calculated as:

$1500 = 5.3n+ 250

Collect like terms

1500 - 250 = 5.3n

1250 = 5.3n

n = 1250/5.3

n = 235.8490566 bracelets.

Bracelets are created as whole numbers and they can't be in decimal form.

Therefore, the maximum number of bracelets Mai can make with a budget of $1500 is 235 bracelets.

6 0
2 years ago
Simplify square root of negative 48.
kvv77 [185]
We want to simplify √(-48).

Note that
i² = -1 by definition.
Therefore
\sqrt{-48} =  \sqrt{i^{2}.16.3} = \sqrt{i^{2}}  \sqrt{16}  \sqrt{3} =4i \sqrt{3}

Answer: c.  4i \sqrt{3}

3 0
3 years ago
How much is 3 over 15 plus 1 over 3
REY [17]

Answer:

8/15

Step-by-step explanation:

Well to add fractions you have to have the same denominator so you would multiply your 1/3 by 5 to be 5/15 then you can add.

3/15 + 5/15 = 8/15

4 0
3 years ago
Read 2 more answers
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