Point-slope form to slope-intercept form

Answers

Answer 1

Answer: y=mx+b
y-y1=m(x-x1)

They are different, and the conversion depends on what you need.

What you need:
y-y1=m(x-x1)
y-y1=mx-mx1 (distribute the m)
y=mx-mx1+y1 (move the y1)
y=mx+b (combine mx1 and y1)

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(Geometry), homework please help

Answers

4.That first one sounds familiar; I think I did it yesterday.

The sides don't matter (except that they're equal) so the base angle b satisfies

b + b + 38 = 180

2b = 142

b = 71

Choice a

42 + 42 + v = 180

v = 180 - 84 = 96

choice d

6. That's three acute angles, an acute triangle

7. We need to satisfy the triangle inequality which means the sum of the two smaller sides needs to be bigger than the largest

10+15>24 so choice b

SRT = RTS = 180 - STU

3x - 50 = 180 - 7x

10 x = 230

x = 23

choice a

Simplify 10 + 4(x + 1) + 5.

Answers

10 + 4 (x+1) +5 Distributive Property
= 10 + 4x + 4 + 5 Combine like terms
= 10 + 4 + 5 + 4x Add
= 19 + 4x Answer

Answer = 19 + 4x

10+4(x+1)+5

Distribute:

=10+(4)(x)+(4)(1)+5

=10+4x+4+5

Combine Like Terms:

=10+4x+4+5

=(4x)+(10+4+5)

=4x+19

∠A and ∠B are supplementary. If m∠A = 83° , what is the measure of ∠B?7°
83°
97°
17°

Answers

suplementary means adds to 180
a+b=180
a=83
83+b=180
minus 83 both sidse
b=97

answer is 97 degrees

Answer:

it is 17 d

Step-by-step explanation:

Josiah and his friends are going to the movies. Each ticket costs $10, and popcorn is $5 a bag. There is a $3 service fee for the entire purchase. He has $75. If he buys 4 tickets, how many bags of popcorn can he buy? if x=number of tickets and y=number of popcorn which of the following inequalities would you use to answer the problem?A x+y=75
B 10x+5y+3≤75
C 10x+5y≤75
D 10x+5y+3≥75

Answers

Answer:

Step-by-step explanation:

If each ticket costs $10 and each popcorn costs $5, with x = number of tickets and y = number of popcorn and $3 the service we have

10x+5y+3 = total cost.

Now, he has a total of $75 and he buys 4 tickets so

10(4)+5y+3 = 75

40+5y+3 = 75

43+5y=75

5y = 75-43

5y = 32

y = 32/5 = 6.4 ≈ 6 popcorn.

Then, he can buy 6 popcorns. Now, to find the inequality we need to know that if he has $75, the total cost can't exceed $75, that is, the total cost needs to be less or equal to $75.

10x+5y+3 ≤75.

B
Because if x equals the number of tickets the it would be 10 X x. Same with the popcorn. for example: x=5 And y =3. it would be
10(5)+5(3)+3=$68

How do i write a word phrase for 2/3y 4?