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777dan777 [17]
3 years ago
15

How do I do it like how do I get started

Mathematics
1 answer:
padilas [110]3 years ago
6 0
4x = 2(3 + x + 5)
4x = 2(x + 8)
4x = 2x + 16
4x - 2x = 16
2x = 16
x = 16/2
x = 8
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The range of the function f(x) = x + 5 is {7, 9). What is the function's domain?​
Maru [420]

Answer:

(2,4)

Step-by-step explanation:

The range is the y values

y = x+5

Let y=7

7 =x+5

Subtract 5

7-5 x+5-5

2=x

Let y= 9

Subtract 5

9-5 x+5-5

4=x

The domain is (2,4)

8 0
3 years ago
A furniture designer builds a trapezoidal desk with a semicircular cutout. What is the area of the desk?
nirvana33 [79]

Answer:

Area = 26478cm^2

Step-by-step explanation:

Given

See attachment for desk

Required

The area

First, calculate the area of the semicircular cutout

Area = \frac{\pi r^2}{2}

Where

r = 60cm

So:

A_1 = \frac{3.14 * 60^2}{2}

A_1 = \frac{11304}{2}

A_1 = 5652cm^2

Next, the area of the complete trapezium

Area= \frac{1}{2}(a + b) * h

Where

a = 300

b = 2 * r = 2 * 60 = 120

h = 153

So:

A_2 = \frac{1}{2} * (300 + 120) * 153

A_2 = \frac{1}{2} * 420 * 153

A_2 = 32130cm^2

The area of the desk is:

Area = A_2 - A_1

Area = 32130cm^2 - 5652cm^2

Area = 26478cm^2

8 0
3 years ago
$123.74856 rounded to the nearest cent would be?
Airida [17]
$123.75 you would round all of them to the nearest hundreth
3 0
3 years ago
Read 2 more answers
Percentage of number: <br> 70% of 44
Elena L [17]
0.7 * 44 = 30
30 is seventy percent of forty four
4 0
3 years ago
Read 2 more answers
You are getting a new phone for your birthday there is a $50 activation fee due when you get the phone then you will be paying $
Mekhanik [1.2K]

Answer:

y=99x+50

Step-by-step explanation:

one time fee is intercept, each month is slope

5 0
3 years ago
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