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2 years ago

Are the graphs of the lines in the pair parallel? Explain.

1 answer:

6 0

So you gotta change the second one to slope int form and it will become -3y=18x-54 which means that it's A because parallel lines can't be parallel if the slopes are different. (pretty sure this is right but who knows)

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A 3650-year-old wooden chest is found by archaeologists. What percentage of the original Superscript 14 Baseline Upper C would

AfilCa [17]

Answer:

64.5%

Step-by-step explanation:

Initial amount N° = ?

Remaining amount after decay = N = ?

k = decay constant = 0.00012 $yr^{-1}$

t = time = 3650 year

fraction remaining will be N/N°

From the decay equation, N = N° $e^{-kt}$

N/N° = $e^{-kt}$

N/N° = $e^{-0.00012 x 3650 }$

N/N° = $e^{-0.438}$

N/N° = 0.645 = 64.5%

6 0

3 years ago

HELLPPP <br> I need help asappp

sattari [20]

Answer:

(8,5)

Step-by-step explanation:

x=8

5*8-2y=30

40-2y=30 . subtract 40 from both sides

-2y=-10 . divide both sides by-2

y=5

3 0

2 years ago

Which equation represents the polynomial function with zeros −1, 1, and 3 (multiplicity of 2), and a y-intercept of −18? (4 poin

Vlad [161]

Correct Answer:
3rd option is the correct answer

Solution:
The zeros of the polynomial are -1,1 and 3. The multiplicity of 3 is 2. So the polynomial can be expressed as:

$y=a (x-3)^{2}(x-1)(x+1)$

The y-intercept of the polynomial is -18. This means the polynomial passes through the point (0,-18). Therefore, y must be -18 when x = 0. Using these values of x and y in previous equation we get:

$-18=a (0-3)^{2}(0-1)(0+1) \\ \\ 
-18=-9a \\ \\ 
a=2$

The final equation of the polynomial becomes:

$y=2 (x-3)^{2}(x-1)(x+1)$

7 0

3 years ago

Help please))) please i need your help!!!)

Nataliya [291]

3. 12 a

4. 7b-10

all you have to do is add up all of the sides.

5 0

3 years ago

Read 2 more answers

a recent survey determained that 7 out of 9 students eat school lunch at least once a week. if 54 students were surveyed how man

Setler [38]