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3 years ago

PLEASE HELP!!!!!!!!!!!!!

Mathematics

1 answer:

Gwar [14]3 years ago

4 0

Is there an image or some information about the line?

I can't tell you which of these is true without more information.

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If Karri takes a 7 question true false test and guess on every question, what is the

dusya [7]

Answer:

The probability that she gets all 7 questions correct is 0.0078.

Step-by-step explanation:

We are given that Karri takes a 7 question true-false test and guess on every question.

The above situation can be represented through binomial distribution;

$P(X = r) = \binom{n}{r} \times p^{r} \times (1-p)^{n-r} ; x = 0,1,2,3,........$

where, n = number of samples (trials) taken = 7 question

r = number of success = all 7 questions correct

p = probability of success which in our question is probability that

question is correct, i.e. p = 50%

Let X = Number of question that are correct

So, X ~ Binom(n = 7, p = 0.50)

Now, the probability that she gets all 7 questions correct is given by = P(X = 7)

P(X = 7) = $\binom{7}{7} \times 0.50^{7} \times (1-0.50)^{7-7}$

= $1 \times 0.50^{7} \times 0.50^{0}$

= 0.0078

6 0

3 years ago

Find the equivalent fraction of 1/3 equals

kolezko [41]

Equivalent Fractions for 1/3:

1/3, 2/6, 3/9, 4/12, 5/15, 6/18, 7/21, 8/24, 9/27, 10/30,

6 0

3 years ago

Read 2 more answers

The range of the function

Rus_ich [418]

The range of this function is all real numbers. When it is a linear function it can reach negative and positive infinity.

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3 years ago

The answer for the length width and square feet

Anvisha [2.4K]

Answer:

whats the drawing.

Step-by-step explanation:

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2 years ago

J= -8c^2 - 4cd - d^2 k= -3c^2 +7cd - 3d^2 j+k =

irina [24]

J=-8c²-4cd-d²
k=-3c²+7cd-3d²
j+k=
-8c²-4cd-d²-3c²+7cd-3d²
-11c²-4d²+3cd

6 0

3 years ago