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Bogdan [553]
2 years ago
10

Can you do the 4 and show your work if you can please ^^

Mathematics
1 answer:
igomit [66]2 years ago
3 0
7 = - (t-1)
7=-t-1
t=-1-7
Calculate the difference
t=-8 ( here’s your answer)
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What are the coordinates of P?
Zepler [3.9K]
The answer is eight
3 0
2 years ago
David is three time as old as Joseph after 3 years David will be only twice as old as process will be there find their present a
kvasek [131]

Answer:

Joseph's present age=3 yrs

David's present age=9 yrs

Step-by-step explanation:

Let Joseph's present age be x.

David's present age=3x

__________________

Ater 3 yrs,

Joseph's age=x+3

David's age=2(x+3)

Also, we can add 3 to David's present age to get age After 3 yrs. So, David's age after 3 yrs would also be 3x+3.

Now, balance them.

3x+3=2(x+3)

3x+3=2x+6

x=3

D"s prsent age=9

J's present age=3

5 0
10 months ago
a slitter assembly contains 48 blades five blades are selected at random and evaluated each day for sharpness if any dull blade
12345 [234]

Answer:

P(at least 1 dull blade)=0.7068

Step-by-step explanation:

I hope this helps.

This is what it's called dependent event probability, with the added condition that at least 1 out of 5 blades picked is dull, because from your selection of 5, you only need one defective to decide on replacing all.

So if you look at this from another perspective, you have only one event that makes it so you don't change the blades: that 5 out 5 blades picked are sharp. You also know that the probability of changing the blades plus the probability of not changing them is equal to 100%, because that involves all the events possible.

P(at least 1 dull blade out of 5)+Probability(no dull blades out of 5)=1

P(at least 1 dull blade)=1-P(no dull blades)

But the event of picking one blade is dependent of the previous picking, meaning there is no chance of picking the same blade twice.

So you have 38/48 on getting a sharp one on your first pick, then 37/47 (since you remove 1 sharp from the possibilities, and 1 from the whole lot), and so on.

Also since are consecutive events, you need to multiply the events.

The probability that the assembly is replaced the first day is:

P(at least 1 dull blade)=1-P(no dull blades)

P(at least 1 dull blade)=1-(\frac{38}{48}* \frac{37}{47} *\frac{36}{46}*\frac{35}{45}*\frac{34}{44})

P(at least 1 dull blade)=1-0.2931

P(at least 1 dull blade)=0.7068

6 0
2 years ago
A line passes through the points (4,6) and (3, 3). What is its equation in slope-intercept
Zigmanuir [339]

Answer:

y = 3x - 6

Step-by-step explanation:

Find the slope of the line:

3 - 6 / 3 - 4  -> -3/-1 so the slope is 3

Now use the point-slope form to find the slope-intercept form:

y - 3 = 3 (x - 3)

y - 3 = 3x - 9        add three to each side...

y = 3x - 6

8 0
2 years ago
Find the area below
Katen [24]

Answer:

A = 760.27

Step-by-step explanation:

The shape presented is a semicircle, and the formula for this is:

A = \frac{3.14r^{2} }{2}

The "r," is the radius, which is half of the diameter, in this case is 44, so all you need to do is divide 44 by 2 = 22, then plug this in:

A = \frac{3.14(22)^{2} }{2}

A = \frac{3.14(484)}{2}

A = \frac{1520.53}{2}

A = 760.27

5 0
2 years ago
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