IfGeometry SOHCAHTOA

Answers

Answer 1

Answer: In geometry, sohcahtoa is an easy way to remember what sine, cos and tan stand for

Soh is sine, which is equal to opposite over hpotenuse

Cah is cos which is equal to adjacent over hypotenuse

Toa is tan which is equal to opposite over adjacent

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Which system of equations has infinitely many solutions? 4 x + 2 y = 5. Negative 4 x minus 2 y = 1. Negative 10 x + y = 4. 10 x minus y = negative 4. Negative 8 x + y = 2. 8 x minus y = 0. Negative x + 2 y = 6. 7 x minus 2 y = 12.
Is the point (-2, 5) a solution to the equation 2x + 5y = 0?
What is the area of the trapezoid shown?

Helppp ME PLSSSS

PLS

Answers

Answer:

ok so the bottom of this shape is 4

the sides are 5 and there is two of them

and then if we count if looks like there is 2 going down and two going up so

4+5*2+2*2

4+10+2*2

4+10+4

14+4

Hope This Helps!!!

Stephanie was doing a science experiment to see what brand of cereal with raisinsactually had more raisins. She scooped out one cup of cereal and counted 27 raisins. If
there were 12 cups of cereal in the box, predict about how many raisins should there
be in the box?

Answers

Answer:

counted 27 raisins. If

there were 12

a group of students is donating blood during a blood drive. a student has 9/20 probability of having type 'o' blood and a 2/5 probability of having type 'A'.what is the probability that a student has type 'o' or type 'a' blood and why?

Answers

For the answer to the question above,
the answer is "The student can have only one blood type, so the actual events are mutually exclusive. "

The probabilities are not mutually exclusive. Based on the group

P(Type O) = 9/20 = 45% or 0.45
P(Type A) = 2/5 = 40% or 0.40
P(Other) = 3/20 = 15% or 0.15
I hope my answer helped you. Feel free to ask more questions. Have a nice day!

Hello there.

A group of students is donating blood during a blood drive. a student has 9/20 probability of having type 'o' blood and a 2/5 probability of having type 'A'.what is the probability that a student has type 'o' or type 'a' blood and why?

The student can have only one blood type, so the actual events are mutually exclusive.

Arthur has been challenged to donate $50,000. He decides to donate exactly 50% of the money every day until less than $1 remains. Write a function that would represent this situation.

Answers

Answer:(-1/2^x)(50000)

Step-by-step explanation:

Which fraction is closer to 1/2 than to 0 or 1

Answers

The fraction is closer to 1/2 than to 0 or 1 is 8/12.

What is Fraction?

The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves.

The number of parts into which the whole has been divided is shown by the denominator. It is positioned in the fraction's lower portion, below the fractional bar.
How many sections of the fraction are displayed or chosen is shown in the numerator. It is positioned above the fractional bar in the upper portion of the fraction.

Given:

First Fraction

2/12 = 1/6 = 0.1667

Second Fraction

3/12

= 0.25

Third Fraction

8/12

= 0.6667

Fourth Fraction

10/12

= 0.83333

So, Fraction closer to 1/2 or 0.5 is 8/12.

Learn more about fraction here:

brainly.com/question/10354322

#SPJ2

In this situation I would convert the 1/2 into a fraction that has a common denominator. 1/2 will now be 6/12.

I think the best answer here is 8/12 because 6/12 is only two lines away from 8/12 where as everything else is either closer to 1 or 0.

I hope this helps. Good luck.

A Pew Internet poll asked cell phone owners about how they used their cell phones. One question asked whether or not during the past 30 days they had used their phone while in a store to call a friend or family member for advice about a purchase they were considering. The poll surveyed 1003 adults living in the United States by telephone. Of these, 462 responded that they had used their cell phone while in a store within the last 30 days to call a friend or family member for advice about a purchase they were considering.A) Identify the sample size and the count.
B) Calculate the sample proportion.
C) Explain the relationship between the population proportion and the sample proportion.

Answers

Answer:

Given:

n = 1003

$p' = (462)/(1003) = 0.4606$

q = 1 - 0.4606 = 0.5394

a) The sample size and count.

Here the sample size is the number that took part in the poll. It is denoted as n = 1003.

The count is the number that answered yes. Count = 462

b) The sample proportion.

The formula for sample proportion is: $p' = (x)/(n)$

Therefore, sample proportion =

$p' = (462)/(1003) = 0.4606$

c) The relationship between population proportion and sample proportion.

Since the sample size is greater than 30 (n>30), the sample size is large. Hence, for a large sample, the population proportion is approximately equal to the sample proportion.

This means the population proportion, p = 0.4606

Answer:

A) Sample size n=1003

Count x=462

B) Sample proportion p=0.46

C) The population proportion can be estimated with a confidence interval, with the information given by the sample proportion.

The 95% confidence interval for the population proportion is (0.429, 0.491).

Step-by-step explanation:

A) The sample size include all the adult that answer the poll. The sample size is then n=1003.

The count is the number of adults that answer Yes in this case. The count is x=462.

B) The sample proportion can be calculated dividing the count by the sample size:

$p=(x)/(n)=(462)/(1003)=0.46$

C) The population proportion is not known. It can only be estimated with the information given by samples of that population. The statistical inference is the tool by which the sample information can be used to estimate the population characteristics.

With the sample proportion p we can estimate a confidence interval for the population proportion.

We can calculate a 95% confidence interval.

The standard error of the proportion is:

$\sigma_p=\sqrt{(p(1-p))/(n)}=\sqrt{(0.46*0.54)/(1003)}\n\n\n \sigma_p=√(0.00025)=0.0157$