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2 years ago

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

Mathematics

1 answer:

Rasek [7]2 years ago

4 0

1) it's a function 2) for each number 3) set a input and set b output

to be a function, no ordered pairs should have same first coordinate, hence this is a function

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The table below shows the heights of several books. Jean stacks a dictionary on top of her novel. How high is the stack of the t

aev [14]

Answer:

The height of the stack = $5\frac{1}{4}$ in

Explanation:

We are given that Jean stacks a dictionary on top of a novel.

This means that the total height of the stack will be equal to the height of the dictionary added to the height of the novel.

From the givens, we have:

height of dictionary = $4\frac{1}{2}$ in

height of novel = $\frac{3}{4}$ in

Now, adding the two height, we will have:

Total height of stack = height of novel + height of dictionary

Total height of stack = $\frac{3}{4}+4 \frac{1}{2} = \frac{3}{4}+ \frac{18}{4}= \frac{21}{4}=5 \frac{1}{4}$ in

Hope this helps :)

6 0

3 years ago

A class has 10 boys and 12 girls. in how many ways can a committee of four be selected if the committee can have at most two gir

V125BC [204]

C(12,0)C(10,4)+C(12,1)C(10,3)+C(12,2)C(10,2) = (1)(210)+(12)(120)+(66)(45) = 210+1440+2904 = 4554 Answeer: 4554 ways

5 0

3 years ago

3n+75=50+2n please help righting more

alexandr1967 [171]

Answer: n = -25

Step-by-step explanation:

you would need to get N by itself so you would subtract 2n from both sides and that would bring you to n+75=50 and then you would need to subtract 75 from both sides and that leads you to n=-25

5 0

2 years ago

The measure of the supplement of an angle is 84° less than the measure of the angle. Find the measures of the angles

babunello [35]

Let the measure of angle be 'x'

Since, the measure of the supplement of an angle is 84° less than the measure of the angle.

Therefore, measure of supplement of x = x - 84°

The measure of two supplementary angles is 180 degrees.

$x + x -84^\circ = 180^\circ$

$2x -84^\circ = 180^\circ$

$2x =84^\circ + 180^\circ$

$2x =264^\circ$

$x =132^\circ$

So, the measure of angle = $x =132^\circ$

Its supplement = x - 84° = 132° - 84°

= 48°

So, the measure of supplement of angle is 48 degrees.

6 0

2 years ago

A builder builds a house on the land that is 20 feet above sea level. If each floor of the house is 9 feet high, how many feet a

dolphi86 [110]

Answer:

29 feet above sea level

Step-by-step explanation:

One floor is 9 feet high, so the top of the first floor will be 9 feet above the ground.

The ground is also 20 feet above sea level, so add 9 to this to find how many feet above sea level the top of the first floor is:

20 + 9

= 29 feet above sea level

5 0

2 years ago