Mathematics Middle School

## Answers

**Answer 1**

Answer:

See explanation

Step-by-step explanation:

The range of the cosine function is

Therefore is not defined.

Assuming your question is rather

Then in the second quadrant.

## Related Questions

Below is a set of data representing the percentage of females in the labor force of several countries in 1992. Choose the box-and-whisker plot for this data set:

42, 46, 44, 42, 41, 48, 45, 46

### Answers

The answer to this incorrectly worded question is b

How many degrees does a wheel turn in one complete rotation

### Answers

Answer:

360 degrees

Step-by-step explanation:

If a wheel turns all the way around, or one complete rotation then it is 360 degrees

Answer:

360°,

Step-by-step explanation:

A complete circle is 360°,

Hence,

One complete rotation of the week

= one complete circle

= 360°,

Quadrilateral ABCD is a rhombus with an area of 20 square inches. Diagonal AC is 10 inches long. What is the length of BE?

A

4 in.

B

5 in

2 in.

### Answers

Answer:

area of rhombus =1/2 d1×d2

20=1/2 ×10×d2

d2=4

intersection of diagonal make right angle and cut in equal parts

d1/2=10/2=5

d2/2=4/2=2

use Pythagoras in right angle to bide side

side^2= 5^2 +2^2

side = √29

What is Negative 2 (3 x + 12 y minus 5 minus 17 x minus 16 y + 4) simplified? Negative 40 x + 8 y + 2 28 x + 8 y + 2 28 x + 6 y + 2 Negative 28 x minus 8 y + 2

### Answers

Answer:

Step-by-step explanation:

-2(3x + 12y - 5 - 17x - 16y + 4) =.....combine like terms

-2(-14x - 4y - 1) =

28x + 8y + 2

Answer:

-28x+8y+2

Step-by-step explanation:

Select rational or irrational to classify each number 0.02 2√2√1/2

### Answers

The classification of the each number are;

0.02 = rational

2√2 = irrational

√1/2 = irrational

2√2√1/2 = irrational

What are , rational numbers and irrational numbers?

Rational numbers are numbers which can be written in the form of where a and b are integers. Example: 1/2, 3.5 (which is writable as 7/5) etc.

Irrational numbers are those real numbers which are not rational numbers.

Therefore,

0.02 and 2 are rational numbers because they can be represented as fractions,

2/100 and 2/1

Also √2 and √12 are irrational numbers, since they cannot be represented as fractions

Learn more about numbers here;

brainly.com/question/3151755

#SPJ5

Answer:

.02 = rational

2√2 = irrational

√1/2 = irrational

2√2√1/2 = irrational

A saleswoman earns 40% commission on all the merchandise that she sells. Last month she sold $900 worth of merchandise. How much commission (in dollars) did she earn last month?

### Answers

Answer:360

Step-by-step explanation:

Answer:

$360

Step-by-step explanation:

Given last month, she sold $900

given,

commission = 40% of merchandise sold

= (40/100) of merchandise sold

= (40/100) x $900

= $360

You're at a clothing store that dyes your clothes while you wait. You get to pick from 444 pieces of clothing (shirt, pants, socks, or hat) and 333 colors (purple, blue, or orange). If you randomly pick the piece of clothing and the color, what is the probability that you'll end up with socks that aren't blue?

### Answers

Answer:

1/6

Step-by-step explanation:

Trust me

Khan

Answer:

111/777

Step-by-step explanation:

If x varies inversely with y and x = 8 when y = 6, find y when x = 10. a.

Y equals begin fraction five over twelve end fraction

b.

y = 4.8

c.

y = 7.5

d.

Y equals begin fraction forty over three end fraction

### Answers

Answer:

y = 4.8

Step-by-step explanation:

Given that x and y vary inversely then the equation relating them is

y = ← k is the constant of variation

To find k use the condition x = 8 when y = 6, thus

k = yx = 6 × 8 = 48

y = ← equation of variation

When x = 10, then

y = = 4.8

What is the % of 7/10

### Answers

Answer:

70%

Step-by-step explanation:

% of 7/10

7/10 x 100%

0.7 x 100%

= 70%

7/10=70/100=70%, so the answer is seventy-percent.

What is the sum of the probability of drawing a green marble and the probability of not drawing a green marble?

### Answers

Answer:

50%

Step-by-step explanation:

Answer:

there is 1/2 a chance of drawing a green marble and 1/2 a chance of not drawing a green marble.

Step-by-step explanation:

hope its right i dont know...im sorry if its wrong

Which second degree polynomial function has a leading coefficient of –1 and root 4 with multiplicity 2?

### Answers

Answer:

f(x) = -x² + 8x - 16

Step-by-step explanation:

PLEASE HELP Suppose y varies directly with x, and y=10 when x= -3. What direct variation equation relates x and y ? What is the value of y when x= -1?

### Answers

Answer:

y =

Step-by-step explanation:

Given y varies directly with x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 10 when x = - 3, thus

k = = = -

y = - x ← equation of variation

When x = - 1, then

y = - × - 1 =

If cos x = 0.9341, find the measure of angle x to the nearest degree.

### Answers

Answer:

x = 21° or 339°

Step-by-step explanation:

We are given that cos x = 0.9341.

So, cosine of x is positive and then x can be in first quadrant or fourth quadrant.

Now, ≈ 21° (to the nearest degree)

So, x = 21° or (360 - 21)° = 339° (Answer)

If R is the set of all integers, choose the set S that will make the following statement false. S ⊆ R

1S = {−2, −1, 0, 1, 2}

2S = {0, 0.5, 1, 1.5}

3S = {0}

4S = {1, 2, 3, 4}

### Answers

Answer: 1 S = {−2, −1, 0, 1, 2}

Step-by-step explanation:

Integers are whole numbers that could be positive or negative .

This means that

R = { ... -3 ,-2 , -1 , 0 , 1 , 2 , 3 , 4 , ...}

S ⊆ R means that all elements of S is also an element in R , therefore :

S = { -2, -1 ,0, 1 , 2 ...}

If you are looking for a job and are underage, you need a ___.

### Answers

Answer:

workers permit

Step-by-step explanation:

Answer:

Work permit

Step-by-step explanation:

guven g(x) is a linear function and passes through the points (3,2)and (5,-1) determine the slope of the line

### Answers

Answer:

slope = -

Step-by-step explanation:

Calculate the slope m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (3, 2) and (x₂, y₂ ) = (5, - 1)

m = = = -

What percent of your budget of 2,500 would your rent be if you pay 650 in rent?

### Answers

Answer:

26%. Hope this helps.

Step-by-step explanation:

Determine whether the number could be the probability of an event. Explain your reasoning. 2.3 I AM OFFERING 90 POINTS TO WHOEVER ANSWERS THIS CORRECT

### Answers

Answer:

No, it can't be the probability of an event.

Step-by-step explanation:

Probabilities range from 0 to 1, and 2.3 goes above 1 so it can't be a probability.

That's all I can do to explain, sorry I'm late and that my explanation is short!

Brainiest if helpful :)

(a) 33.3% (b) -1.5 (c) 0.0002 (d) 0 (e) 320/1058 (f) 64/25

Answer:

a. possible

b. not possible

c. possible

d. possible

e. possible

f. not possible

Explanation:

The probability of an event must be between 0 and 1 (including 0 and 1 both). Since 33% is equal to 0.33, it is between 0 and 1, thus it is a possible probable event. -1.5 is not between 0 and 1. The next option is between 0 and 1.

0 can also be a possible probable event. The next option is also between 0 and 1 which can be probability of an event. But the last option is not between the range of 0 and 1, thus can not represent probability of an event.

If cosine theta almost-equals 0.3090, which of the following represents approximate values of sine theta and tangent theta, for 0 degrees less-than theta less-than 90 degrees? sine theta almost-equals 0.9511; tangent theta almost equals 0.3249

sine theta almost-equals 0.9511; tangent theta almost equals 3.0780

sine theta almost-equals 3.2362; tangent theta almost-equals 0.0955

sine theta almost-equals 3.2362; tangent theta almost-equals 10.4731

### Answers

Answer:

and

Step-by-step explanation:

Given that, .

Now, we have to calculate the values of and .

We know the identity that,

So, {Since }

Now,

Then, we know the identity,

So, (Answer) {Since }

Answer:

B.

Step-by-step explanation:

Directions: Find the value of x.

10

### Answers

This makes no since i am confused