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3 years ago

I need immediate help, ignore the bottom part.

Mathematics

1 answer:

kipiarov [429]3 years ago

4 0

Answer:

100

Step-by-step explanation:

Idk I'm not smart enough for this

Puurrr

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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

Nicole wants to paint this figure on her wall in her bedroom. If paint cost $4.59 per square unit, how many square feet of paint

Crank

Answer: C.8 sq ft hope this helps:)

4 0

2 years ago

Which of the following is an identity? Also, please include an explanation.

Lerok [7]

$cot\theta= \frac{ cos \theta}{ sin \theta } \\ sec\theta = \frac{1}{ cos \theta } \\ \\ \\ sin \theta cot\theta sec\theta \\ = sin \theta \cdot \frac{ cos \theta}{ sin \theta } \cdot \frac{1}{ cos \theta } \\ = \frac{ sin \theta}{ sin \theta } =1 \\$

sinθcotθsecθ = 1

6 0

3 years ago

Please help with explanation and pleasedo let me know about the method ( 9a,b 10a)

worty [1.4K]

Answer:

Hope this helps

Step-by-step explanation:

Crossproduct is explained. You can use it to get all the values as well as being able to convert into other currencies.

6 0

2 years ago

I need help pleaseee

Nataly_w [17]

Is this for area and perimeter? If so, first make the fraction a decimal, (that would be 3.5). Then, for permeter, add 3.5 + 3.5 + 9 + 9, which is 25, for area, multiply 3.5 by 9, which is 31.5. Hope this helped!

5 0

2 years ago