Answers for math homework, thanks :)

Mathematics

1 answer:

zlopas [31]3 years ago

7 0

For Part A:

1)

y = x + 1

m = 1, b = 1

y = 1/4x + 4

m = 1/4, b = 4

Solution: (4, 5)

2)

y = 2x + 4

m = 2, b = 4

y = - 1/3x - 3

m = - 1/3, b = - 3

Solution: (- 3, - 2)

**Graphs of both are provided in order.

For Part B:

1)

Solution: (4, - 6)

2)

Solution: (3, 4)

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Use △DEF, shown below, to answer the question that follows:

Nikitich [7]

There are several ways to solve this, but the law of sines is probably the easiest...

Law of Sines: sina/A=sinb/B=sinc/C for any triangle...in this case we can say:

sin48/x=sin90/55

xsin90=55sin48

x=55sin48/sin90

x≈40.873 (to nearest one-thousandth, not sure which precision you needed)

4 0

3 years ago

Read 2 more answers

Show work

adelina 88 [10]

Answer:

n = 5
m = 12
m= -14
y =30

Step-by-step explanation:

$n -8 =-3\\\\Collect\:like\:terms\\n = -3+8\\\\Simplify ; -3+8 = 5\\\\n =5$

$-2m=-24\\\\Divide\: both \:sides\:of\:the\:equation\:by\:-2\\\\\frac{-2m}{-2} = \frac{-24}{-2} \\\\Simplify ; -2m/-2 = m , -24/-2 = 12\\\\m =12$

$\frac{m}{2}=-7\\\\Cross\:Multiply\\\\m\times 1 = 2\times -7\\\\m = -14$

$\frac{2}{3}y=20\\ \\\frac{2}{3} y = \frac{20}{1} \\\\Cross\:Multiply\\\\2y\times 1 = 3\times 20\\\\2y = 20\\\\\mathrm{Divide\:both\:sides\:by\:}2\\\frac{2y}{2}=\frac{60}{2}\\\\Simplify\\y = 30$