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Papessa [141]
3 years ago
8

Can someone give me an example on how to do number 18. thank you !

Mathematics
1 answer:
kolbaska11 [484]3 years ago
7 0

Answer:

r=5

Step-by-step explanation:

The gradient(m) can be found using (y2-y1)/(x2-x1)

if we make the substitution given the points in the question, we find

(r--4)/(-5--3)

this simplifies to

(r+4)/-2

since we know that m= -9/2, we can make an equation

(r+4)/-2=-9/2

multiply both sides of the equation by -2

r+4=9

r=5

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Determine whether the given procedure results in a binomial distribution​ (or a distribution that can be treated as​ binomial).
MArishka [77]

Answer:

B. ​No, because the trials of the experiment are not independent and the probability of success differs from trial to trial.

Step-by-step explanation:

The first criterion of a binomial distribution is a fixed number of trials.  Selecting 5 senators means the number of trials is 5, which is a fixed number.

The next criterion is that the trials must be independent.  Selecting the senators without replacement means the trials are dependent, not independent; this means that this is not a binomial distribution.

5 0
4 years ago
shirley has $540 un her bank account. She withdraws $35 each week to cover her expenses. write an equation that relates the amou
Veseljchak [2.6K]
540-35x= y

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6 0
3 years ago
ms ari buys and sells dimonds she has a dimond that weighs 1.825 carats what is the weight of ms aris dimond rounded to the near
Aneli [31]
1.825 rounded to the nearest hundredth is 1.83 because the number after 2 is 5
5 0
3 years ago
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The area of a trapezoid is 70.55 square feet. The length of the bases are 11.4 and 5.6 feet. What is the height of the trapezoid
olasank [31]

Answer:

The height is 8.3 feet

Step-by-step explanation:

The area of a trapezoid is calculated using the formula:

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We substitute area=70.55, and the base lengths 11.4 and 5.6 feet and solve for the height.

70.55 =  \frac{1}{2} (11.4 + 5.6)h

70.55 =  \frac{1}{2} (17)h

70 .55 = 8.5h

h =  \frac{70.55}{8.5}

h = 8.3

5 0
3 years ago
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If an article was bought for £400 and was sold for £336 what is the loss persentages
Gre4nikov [31]

Answer:

Hey mate!

Here is your answer > >

C.P of an article=Rs.400

S.P.of an article=Rs.336

C.P.> S.P., there is a loss

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=> Loss=400-336

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Loss%=Loss/C.P.×100

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Hope it helps!

Thankyou ☆ ☆

8 0
3 years ago
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