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Rudik [331]
3 years ago
8

Evaluate 3y-2 for y=9

Mathematics
2 answers:
Bumek [7]3 years ago
6 0
3(9)-2
27-2
25
25 is your answer
DiKsa [7]3 years ago
3 0

3y-2 for y=9

remember pemdas or oder of operations, multiply comes beore add and subtract

3(9)-2

27-2

25

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Please help me, I'm suffering from all of these parallel lines ;9
Anarel [89]

Answer:

1. y = 4x - 27

2. y = -4x - 15

Step-by-step explanation:

If two lines are parallel, then they have the same slope. So, the slope of the line we are looking for needs to be 4. We can start by writing a point-slope equation:

y - y1 = m(x - x1)

We can substitute the values we have, the point we are using is (8, 5) because it needs to be on the line:

y - 5 = 4(x - 8)

We can distribute:

y - 5 = 4x - 32

y = 4x - 27

We are not given the slope-intercept form, so we must divide both sides by two to get it:

y = 1/4 x + 8

A perpendicular line has the slope that is the negative reciprocal of the one that is given. So, the slope of the line would be - 4. We can start by writing a point-slope equation:

y - y1 = m(x - x1)

We can substitute the values we have, the point we are using is (-5, 5) because it needs to be on the line:

y - 5 = -4(x + 5)

We can distribute:

y - 5 = -4x - 20

y = -4x - 15

6 0
3 years ago
Find the lateral surface area of the cylinder. Round your answer to the nearest tenth.
Svet_ta [14]

Answer:

A=2πrh

Step-by-step explanation:

A=2*22/7*4*9

=230

5 0
3 years ago
If h(x)=(x-2)^2, find h(x+1)
Softa [21]

Answer:

Step-by-step explanation:

h(x+1) = ( x + 1 - 2)²

= (x -1)²

8 0
3 years ago
What is the square root of 312​
pishuonlain [190]

Answer:±17.6635217326557

Step-by-step explanation:

5 0
2 years ago
10($6.75)+7($1.99)+$15.00=$196.43
34kurt
96/43 = 196/43
the equation is false.
Hope this helps!
5 0
3 years ago
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