MATHEMATICS HIGH SCHOOL

Name four angles whose tangent equals 0. a. 45°, 135°, 405°, 495° c. 0°, 180°, 360°, 540° b. 90°, 270°, 450°, 630° d. 90°, 450°, 810°, 1170°

Answers

Answer 1

Answer:

C.) 0°, 180°, 360°, 540°

is correct !

Answer 2

Answer:

C. SEE ATTACHED PICTURE

Step-by-step explanation:

Tangent = 0 at 0° and 180°

0° = 360° and. 180° = 540°

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If -nx2 + tx + c = 0, what is x equal to?
Find the value of y when x equals 4, -3x+9y=-57
Write the sentence as an equation. 323 decreased by d equals 369

I need help with this question ( see image).
Please show workings.

Answers

Answer:

2.50 out of 15 is:

2.50/15*100% = 16.67%

Salary = 9600
Increase = 1680

Percent increase:

1680/9600*100% = 17.5%

Translate the algebraic expression shown below into a verbal expression.x/4

The sum of four and some number
The product of some number and four
The difference of four and some number
The quotient of some number and four

Answers

The quotient of some number and four.

In a study of homeowners, 500 were randomly chosen. It was found that 23% of the people did not have a mortgage and owned their homes outright. Determine whether 23% is a statistic or a parameter.A.
It is a parameter because the value describes a characteristic of a population.

B.
It is a statistic because the value describes a characteristic of a sample.

C.
It is a parameter because the value describes a characteristic of a sample.

D.
It is a statistic because the value describes a characteristic of a population.

Answers

A statistic describes the characteristics of a sample while a parameter describes the characteristics of a population.

Here, the population is home owners while the selected 500 home owners is a sample.

It was observed that 23% of the selected 500 home owners (SAMPLE) .....

Hence, 23% is a statistic because it describes a caharacteristic of a sample.

Answer: B

Answer:

It is a statistic because the value describes a characteristic of a sample.

How many solutions exist for the given equation?

1/2(x + 12) = 4x – 1

Answers

$(1)/(2) (x+12)=4x-1$

Multiply both sides by 2 :

$(1)/(2)(x+12)*2 = 4x*2-1*2$

$x+12=8x-2$

$x+12-12=8x-2-12$

$x=8x-14$

Subtract 8 x from both sides:

$x-8x=8x-14-8x$

$-7x=-14$

Divide both sides by -7 :

$(-7x)/(-7) = (-14)/(7)$

$x = (14)/(7)$

$x = 2$

1 solution

hope this helps!

Answer:

B.one

Step-by-step explanation:

there is only one solution to the problem.

Can anyone help me with turning fractions into decimals 2 1/2

Answers

Fractions are just another form of decimals, so just think 1/2 of 1 is .5, so add the 2 and you get 2.5

Describe a single transformation the has the same effect as rotations a shape 90 degrees clockwise around the origin, then reflecting the result over the x-axis

Answers

Answer:

reflection over the line y = x

Step-by-step explanation:

A transformation is the movement of a point from its initial location to its new location. If a shape is transformed then all its points are also transformed. Types of transformations are rotation, translation, dilation and reflection.

If apoint A(x, y) is rotated 90 degrees clockwise around the origin then the new location is at A'(y, -x). Then if the point A'(y, -x) is reflected over the x axis the new location is A" (y, x)

If a point A(x , y) is reflected over y = x, the new coordinate is A'(y , x)

A transformation that corresponds to rotating a shape 90 degrees clockwise around the origin, then reflecting the result over the x-axis is a reflection over the line y = x

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Seriously omg don’t type answers and then stop! Just put your explanation even if you think I might not understand it idc! Just try! Please I seriously need help!! #7 (Algebra 2)