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3 years ago

PLEASE ANSWER FAST!!!!!!!!!!

Mathematics

2 answers:

Vika [28.1K]3 years ago

5 0

Answer:

D) 3/4

Step-by-step explanation:

Since it is experimental probability, it is the probability after the experiment is conducted

It was spun 60 times and 45 times was on a multiple of 4

Therefore, 45/60 simplifies to 3/4

yan [13]3 years ago

4 0

Answer:

im gonna say 3/4

Step-by-step explanation:

i think its that because 45/60 is 3/4

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two men working together can complete a job in 1 hour 20 minutes. the first man working alone can complete the task in two hours

lana [24]

Answer:

Second Man = (2 Hours * 1.3333 Hours) / (2 Hours - 1.3333 Hours)

Second Man = (2.6666666667 ) / (.666666667)

Second Man (when working alone) = 4 Hours

Step-by-step explanation:

6 0

3 years ago

The sign of the product of two integers with the same sign is positive. What is the sign of three integers with the same sign? E

Svetradugi [14.3K]

Can be both, because if all three were negative, it would be

negative*negative= positive
positive*negative=negative
example: -1*-1*-1=-1

but if all three were positive, it would obviously be positive, because any number of positives can't make negatives in multiplication.

4 0

3 years ago

What is the main purpose of informational writing?

Eddi Din [679]

Answer:

The correct answer is:

"To inform readers about a topic using facts and details"

Step-by-step explanation:

Let us define informational writing first.

Informational writing is like communication writing which is used to convey something using facts and figures. Whatever is stated in an informational writing, it is supported by related facts and proofs.

Hence,

The correct answer is:

"To inform readers about a topic using facts and details"

4 0

3 years ago

(3,1) m=0 In standard form

diamong [38]

0x + y = 1 is the standard form of (3, 1) with m = 0

Solution:

We have been given a point and slope of an equation and have been asked to write it in the standard form.

The standard form of a line is in the form Ax + By = C where A is a positive integer, and B, and C are integers. The standard form of a line is just another way of writing the equation of a line.

The given point is (3,1) and the slope is 0

To write in standard form we will first write it in point slope form and then rearrange it into a standard from.

The point slope form of line is given as:

$y-y_{1}=m\left(x-x_{1}\right)$

Where "m" is the slope of the line

Here in this problem, $m = 0 , x_1 = 3 and y_1 = 1$

y - 1 = 0(x - 3)

y - 1 = 0

y = 1

since the above equation doesn’t have an ‘x’ term we convert into a standard form as follows:

0x + y = 1

This is the standard form for the given point and slope of a line.

6 0

3 years ago

A rectangles width is one-fourth of its length . its area is 9 square units

Paha777 [63]

Answer:

Length = 6

Width = 3/2

Step-by-step explanation:

You can choose to go about this question in lots of different ways, but this is how i did it. I drew a diagram of the rectangle and labeled it: the height/length as x and the width as x/4 (they told us the width is a quarter of the length). They also told us that the area is 9 square units.

We know that length x width = area

So: length x width = 9

I'm gonna bring in the variables i used in the diagram, so:

$x$ x $\frac{x}{4}$ = 9

Keep solving:

$\frac{x^{2} }{4}$ = 9

Times both sides by 4:

$x^{2}$ = 36

Square root both sides for x:

* remember that when you square root, its possible to have a positive or negative version of the value

x = ±6

Since its impossible to have a negative length, we can say that x = 6.

X was just the variable we gave to the length of the rectangle, so now we know the length is 6. If you needed to find width as well, you can do 6/4, which simplifies to 3/2.

To double-check

- 6 x 3/2 should equal 9, since length x width = area

which it is, so we're correct!

Hope that helped : )

4 0

3 years ago