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3 years ago

Help please, much aprreciated

Mathematics

2 answers:

mezya [45]3 years ago

8 0

Answer:

Step-by-step explanation:

The line intersects the point (0,1) on the graph

Julli [10]3 years ago

7 0

Yeah it’s 1, that’s where the line goes through on the Y axis

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Determine the unknown side of the similar triangle. A) 2 B) 3 C) 4 D) 5

IceJOKER [234]

4 is correct. Set up a ratio relationship between similar triangles. $\frac{x}{6} = \frac{8}{12} ; x = \frac{48}{12} ; x = 4$

5 0

3 years ago

I'LL MARK AS BRAINLIEST ( ◜‿◝ )♡

Ymorist [56]

Answer:

You can follow the following method, there are other ways to do this too.

Step-by-step explanation:

Taking RHS,

(cosx-sinx+cosx+sinx)/(cos^2x-sin^2) [Taking LCM of den.]

2cosx/cos2x

Taking LHS,

sin2x/cos2x*1/sinx

2sinxcosx/cos2x*1/sinx

2cosx/cos2x

5 0

3 years ago

5. What property of equality is used to transform the equation from the first step to the second step?

Novay_Z [31]

Answer: The multiplication property of equality is used to transform the equation from the first step to the second step.

Explanation:

The multiplication property states that if any number is multiplied both side of a equation the equation doesn't change.

If x = y and we multiply both side by m, then xm = ym is equivalent to x = y.

The given expression is,

$\frac{x}{5}=2$

Use multiplication property of equality, multiply 5 both sides,

$x=2\times5$

$x=10$

Therefore, the multiplication property of equality is used to transform the equation from the first step to the second step.

3 0

3 years ago

What is the domain and range of (-2,5) (0,3) (2,2) (-4,0) (2,-3)

Nina [5.8K]

Answer:

Domain- -4,-2,0,2 Range- -3,0,2,3,5

Step-by-step explanation:

(x,y)

The domain is the x

The range is the y

And if the number is there more than once you only have to list it once.

Typically you list them from least to greatest so the smallest number the higher number.

5 0

3 years ago

It has been reported that 5% of all undergraduate students in the U.S. who take an introductory statistics course will continue

sasho [114]

Answer:

(1) All undergraduate students in the U.S. who took an introductory statistics course.

(2) a parameter, because it is a numerical summary for a population.

(3) a statistic, because it is a numerical summary for a sample.

Step-by-step explanation:

We are given that it has been reported that 5% of all undergraduate students in the U.S. who take an introductory statistics course will continue their education in statistics.

A random sample of 400 students from this list was selected. Of the 400 undergraduate students, 80 (or 20%) did continue their education in statistics.

(1) In this study, the population of interest is;

All undergraduate students in the U.S. who took an introductory statistics course because the researcher believes that the value which has been reported is too low for the recent undergraduate students who have taken an introductory statistics course at his university.

(2) In this study, the 5% value could be considered a parameter, because it is a numerical summary for a population which states that this value represents all undergraduate students in the U.S. who take an introductory statistics course will continue their education in statistics.

(3) In this study, the 20% value can be considered a statistic, because it is a numerical summary for a sample which represents the % of students who did continue their education in statistics out of the 400 selected undergraduate students.

6 0

4 years ago