All categories

3 years ago

List some of the valid reasons that can be used in a proof:

Mathematics

2 answers:

Genrish500 [490]3 years ago

8 0

Answer:

Experiment results, and more results!

They help a LOT!

Step-by-step explanation:

Virty [35]3 years ago

5 0

Experiment results and risks

You might be interested in

What is 2/9 + 4/9 in simplesst form

Viefleur [7K]

Answer:

2/3

Step-by-step explanation:

since the two fractions have the same denominator, you can add the numerators together to get the answer. 2/9+4/9=6/9. since 6 and 9 are both divisible by 3, you divide both numbers by 3, making the answer 2/3.

8 0

3 years ago

sam had 70 erasers and rulers. after giving away 1/3 of his erasers and 10 rulers, he had an equal number of erasers and rulers

Radda [10]

Answer:

36 erasers

Step-by-step explanation:

Let number of erasers be e

let number of rulers be r

We can write:

e + r = 70

and

After giving away, he has

Erasers: 2/3e

Rulers: r - 10

These two are equal, so we can write and solve:

2/3e = r - 10

2/3e + 10 = r

Putting this in initial equation, we have:

e + (2/3e + 10) = 70

5/3e + 10 = 70

5/3 e = 60

e = 36

And rulers is:

r = 2/3(36) + 10 = 34

Hence, he had 36 erasers in the beginning

4 0

4 years ago

Write an addition equation or a subtraction equation (your choice!) to describe the diagram.

igor_vitrenko [27]

Addition: -9 + -2 = -11

Substraction: -9 - 2 = -11

3 0

2 years ago

Help me with this please

zzz [600]

Answer:

you didn't attach a question to answer

Step-by-step explanation:

4 0

3 years ago

find the equation of the line using the slope formula. Write the final equation using the slope-intercept form. the x- intercept

Roman55 [17]

Answer:

$y=- 4x + 4$

Step-by-step explanation:

The slope formula for a straight line is:

$y=mx+b$

Where, 'm' is the slope and 'b' is the y-intercept.

To find the x-intercept of a line, we need to equal 'y' to zero, and then solve for 'x'. In this case we know that the x-intercept is 1, so we have the point (x1, y1)=(1,0). We are given a second point which is: (x0, y0)=(-2, 12).

To find the slope, we use the following formula:

$m = \frac{y1-y0}{x1-x0} = \frac{0-12}{1-(-2)} = -4$

Now, The equation of the line is: y - y0 = m(x-x0). Then, substituting the values of 'm', 'x0' and 'y0' we have that:

$y - 12 = -4(x+2) ⇒ y = -4x-8 + 12 ⇒ y=- 4x + 4$

The equation of the line using the slope-intercept form is:

$y=- 4x + 4$

7 0

3 years ago