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natima [27]
3 years ago
11

I don’t understand this

Mathematics
1 answer:
svet-max [94.6K]3 years ago
5 0

The answer is 1/20. This is probability. <u><em>probability is the chance of you picking a certain thing</em></u>. for example: You have 3 blue marbles, 6 red marbles, and 4 purple marbles. the probability of pick a blue marble is 3/13. A red would be 6/13, and a purple would be 4/13.

So what this is asking is what are the chances that something will happen over something will not happen. the said that "the probability that an event will not happen is P(E') = 19/20. if you are having a lot of trouble with this, try removing the events with something like marbles (Something you have done before) this tends to make it a little easier to read.

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Find the equation of the line through (6,4) and (-3,-8)
alexdok [17]

Answer:

y = 4/3x - 4

Step-by-step explanation:

to find the equation of a line with 2 points, we use the slope formula which is:

\frac{y_2-y_1}{x_2-x_1}

we will use (6,4) as x_1[tex] and [tex]y_1 and we will use (-3,-8) as x_2[tex] and [tex]y_2. we plug this into the slope formula:

\frac{-8-4}{-3-6}

-8 - 4 = -12

-3 - 6 = -9

the slope is \frac{-12}{-9}

but we can simplify this further by dividing the fraction by -3

-12 / -3 = 4

-9 / -3 = 3

the simplified version of the slope is \frac{4}{3}

we can write this in slope-intercept form which is y =mx + b, with b being the y intercept and m being the slope

y = 4/3x + b <--- we need to solve for <em>b</em> in order to find the y intercept, so substitute x & y for a point on the line, we can use any point we are given, but for this example i will use (6,4)

4 = 4/3(6) + b < multiply 4/3 x 6

4 = 8 + b < subtract 8 from both sides

-4 = b

our y intercept would be (0,-4)

the equation looks like the following:

y = 4/3x - 4, which is our answer

3 0
3 years ago
Janet bought 5 yards of fabric 214-feet wide to make curtains. She used 13 of the fabric to make a long set of curtains and the
SpyIntel [72]

Answer:

the answer is 200 feets left

Step-by-step explanation:

she only has 87 percent of the 5 yards that she bought

8 0
3 years ago
Which is a factor of x2 – 9x + 14?
PtichkaEL [24]

Answer:

(x-7)(x-2)

Step-by-step explanation:

what multiples to 14, but add to -9 ?

-7*-2 = 14

-7*-2= -9

8 0
3 years ago
Read 2 more answers
What is the approximate circumference of a circle with a radius of 42.1 km?
harina [27]
C.264.4 that should answer your question

4 0
3 years ago
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(a) Calculate the angle of the following diagram.<br>Answer:​
Stolb23 [73]

Diagram please

Without diagram I cannot tell you the answer

3 0
3 years ago
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