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irga5000 [103]
3 years ago
7

HELPPPPP PLEASSEEEEEEE

Mathematics
1 answer:
NikAS [45]3 years ago
7 0
The answer would be A.132 because when you add the corner length to 90 it equals 132
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assume that random guesses are made for 8 multiple choice questions on an SAT test, so that there are n=9 trials, each with prob
melamori03 [73]

Answer:

P(x

Step-by-step explanation:

If we call x the number of correct questions obtained in the 9 attempts, then:

x is a discrete random variable that can be modeled by a binomial probability distribution p, with n = 9 trials.

So, the p of x successes has the following formula.

P(x) =\frac{n!}{x!(n-x)!}*p^x(1-p)^{n-x}

Where:

n = 9

p = 0.6

We are looking for P(x<4)

By definition:

P(x

Then:

P(x\leq3)=\sum_{x=0}^{3} \frac{9!}{x!(9-x)!}*(0.6)^x(1-0.6)^{9-x}

P(x\leq3)=0.0994

5 0
3 years ago
1.) Find the nth term of the sequence 1, 3, 7, 13, 21, 31… 2.) The three consecutive terms of an exponential sequence are the se
trasher [3.6K]

Answer:

1) xₙ = n² - (n - 1)

2) 1/4

Step-by-step explanation:

1)    1 = 1² - (1-1)

3 = 2² - (2-1)

7 = 3² - (3-1)

13 = 4² - (4-1)

...........

xₙ = n² - (n - 1)

2) three consecutive terms of an exponential sequence: x, rx , r²x

x: 2nd term of linear sequence

rx: 6th term of linear sequence      rx = x + 4d

r²x: 7th term of linear sequence     r²x = rx + d     d = r²x - rx

rx = x + 4 * (r²x - rx) = x + 4r²x - 4rx

4xr² -5rx + x = 0

x(4r² -5r + 1) = 0

x (4r - 1) ( r - 1) = 0

x = 0 or r = 1/4 or r = 1

if either x = 0 or r = 1      d will be equals to "0" everything became 0

So the only reasonable answer is r = 1/4

3 0
3 years ago
What is -2.75 as a fraction
Dmitrij [34]
As an improper fraction, it would be -11/4

As a mixed number, it would be

-2 and 3/4
7 0
3 years ago
A scalene triangle is a right triangle
Katyanochek1 [597]
Yes it can be. There are more than just right triangles but all right triangles are scalene
6 0
3 years ago
What is 37% of 600<br> gkftcchkfhkfufjfvghvhchcfhcgc
Scilla [17]

Answer:

222

Step-by-step explanation:

Let me know if it is correct!

3 0
2 years ago
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