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3 years ago

Can someone explain to me

Mathematics

2 answers:

Ludmilka [50]3 years ago

5 0

Here's an example of a piecewise function that has three parts, where your choice of parts depends upon the input, x. If you order 57 shirts, you must use the "14x + 20" part of this function, because 57>50. Subst. 57 for x in "14x+20." You'll get 14*57 + 20, or $818.

What's the total cost of ordering 17 shirts? Note that 17 lies in the interval 0≤x<25. Therefore you use ONLY the "17x+20" part of the function:

17(17)+ 20 = $309.

32 shirts: 32 is in the second interval, so evaluate "15.80x+20."
We get: 15.80(32)+20 = $525.60 (answer)

Papessa [141]3 years ago

3 0

You plug the x value into whichever function it applies to. X represents the number of shirts ordered. So for example, the first question asks the total cost if you order 57 shirts. Look at the piecewise function. If says is x>50 (or equal), you use the equation 14x + 20. 57 is greater than 50 so plug it into the equation. (14)(57) + 20 = 818. You should be able to do the rest now. If you have any more questions, you can ask.

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anyanavicka [17]

Answer:

132.7 feet.

Step-by-step explanation:

tan 37 = height of cliff / distance of the ship

= 100/d

d = 100/tan37

= 132.7 feet.

4 0

3 years ago

Which expression is equivalent to (3x^2-7)?

Musya8 [376]

Answer:

The correct answer is third option

(10x² - 4) - (7x² + 3)

Step-by-step explanation:

From the given option we get the correct answer is third option.

(10x² - 4) - (7x² + 3)

<u>Check the correct answer</u>

(10x² - 4) - (7x² + 3) = 10x² - 4 - 7x² - 3)

= 10x² - 7x² - 4 - 3 = 3x² - 7

Therefore the correct answer is third option

(10x² - 4) - (7x² + 3)

4 0

3 years ago

Read 2 more answers

A circle is inscribed in a square with a side length of 144. If a point in the square is chosen at random, what is the probabili

____ [38]

Given :

A circle is inscribed in a square with a side length of 144.

So, radius of circle, r = 144/2 = 72 units.

To Find :

The probability that the point is inside the circle.

Solution :

Area of circle,

$A_c = \pi r^2\\\\A_c = 3.14 \times 72^2\ units^2\\\\A_c = 16277.76 \ units^2$

Area of square,

$A_s = (2r)^2\\\\A_s = ( 2 \times 72)^2\ units^2\\\\A_s = 20736\ units^2$

Now, probability is given by :

$P = \dfrac{A_c}{A_s}\\\\P = \dfrac{16277.76}{20736}\\\\P = 0.785$

Therefore, the probability that the point is inside the circle is 0.785 .

4 0

3 years ago

Hillary wrote a series of numerical expressions to generate a number pattern 3+1,3+2,3+3 which table represents inputs and outpu

loris [4]

Answer:

a) input 9,10,11

output 12,13,14

Step-by-step explanation:

If we look at the pattern, number 3 is added to the consecutive input numbers 1, 2 and 3 to generate a set of output numbers.

Clearly, option (a) follows this rule. Number 3 is added to the consecutive input numbers 9, 10 and 11 to produce 12, 13 and 14.

In option (b), 4 is added to the input numbers.

In option (c), 2 is added to the input numbers and

in option (d), 3 is multiplied to the input numbers.

Hence, the correct option is (a).

8 0

3 years ago

3/4m + 4/5m simplafied

katrin [286]

Multiply the denominator. 4*5=20

15/20+16/20=31/20=1 11/20

Simplify to the proper form.

5 0

4 years ago