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2 years ago

Fill in the blanks below in order to justify whether or not the mapping shown

Mathematics

1 answer:

Fantom [35]2 years ago

6 0

Let's start with the fact that this is a function. Each element of Set A is paired with exactly one element of Set B.

This makes Set A the set of inputs and Set B the set of outputs.

There are a lot of other boxes to pick from, so I'm not sure what else you'd need to pick to make your answer correct.

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What is the value of the expression shown below if x = 3, y = 6, and z =<br> 4?<br> x² + 3yz

Karo-lina-s [1.5K]

Answer:

$81$

Step-by-step explanation:

The initial expression:

$x^2+3yz$

Identify your values:

$x=3\\y=6\\z=4$

Substitute:

$(3)^2+3(6)(4)$

Following PEMDAS, nearly everything is in parentheses, so move to exponents:

$9+3(6)(4)$

Multiply $6$ and $4$ :

$9+3(24)$

Multiply $3$ and $24$ :

$9+72$

Simplify:

$81$

5 0

2 years ago

Jon was at a football match.

nexus9112 [7]

Answer:

no he will make it home at 18:15

Step-by-step explanation:

$4:55+15=5:10\\5:10+10=5:20\\5:20+45=6:15$

6 0

2 years ago

Please help! 10 points

Orlov [11]

<h2>Greetings!</h2>

Answer:

Angle A is 118°

Step-by-step explanation:

All angles in a circle add up to 180, so this means that all the measurements of the three angles add to 180:

x + 2x + 13 + x - 8 = 180

Clean it up:

3x + x + x + 13 -8

5x -5 = 180

To isolate the 5x, you need to move the +5 over to the other side, making it a negative 5:

5x = 180 - 5

5x = 175

Now divide each side by 5 to get the value of 1x:

$\frac{5x}{5} = \frac{175}{5}$

x = 35

So angle A is:

3x + 13

3(35) + 13 = 118

<h3>So angle A is 118°</h3>
<h2>Hope this helps!</h2>

8 0

3 years ago

Read 2 more answers

Simplify. Your answer should only contain only positive exponents.

Xelga [282]

Answer:

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

5.1(3 + 2.2x) > –14.25 – 6(1.7x + 4)?

MaRussiya [10]

Answer:

x > -2.5

Step-by-step explanation:

1) 5.1 (3 + 2.2x) > -14.25 - 6 (1.7x + 4)

2) 15.3 + 11.22x > -14.25 - 10.2x - 24

3) 15.3 + 11.22x > -38.25 - 10.2x

4) 11.22x + 10.2x > -38.25 - 15.3

5) 21.42x > -53.55

6) x > -2.5

Alternate forms

x > -5/2x or x > -2 1/2

5 0

3 years ago