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umka2103 [35]
3 years ago
5

PLEASE HELP

Mathematics
1 answer:
harina [27]3 years ago
3 0
Ok I’m im not sure you can ask someone else sorry
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Please help...
alexandr402 [8]

Sure.  From those choices, the only one that makes sense is that he
didn't perform enough trials.  Technically, you can't expect the experimental
probability to match the theoretical probability until you've rolled it an infinite
number of times.

I have a hunch that even for only 60 trials, such a great discrepancy between
theory and experiment is beginning to suggest that the cubie is loaded.  But
you really can't say.  You just have to keep trying and watch how the numbers
add up.


3 0
3 years ago
Which is the correct formula to find the area of ABC?
Alex777 [14]

Answer:

none of them

Step-by-step explanation:

The area (A) of a triangle is calculated as

A = 0.5 × base × perpendicular height

Here the base is BC and perpendicular height is AD, hence

Area of ΔABC = 0.5 × BC × AD

5 0
3 years ago
Read 2 more answers
Determine the y-intercept of the linear
Anna [14]

Answer:

The y-intercept is 0

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Find the slope between the two points given. Then, use the slope and one of the points to write the equation of the line in Slop
Anika [276]

Answer:

Equation: y=2x-1

Slope: 2

y-intercept: -1

Step-by-step explanation:

Hi there!

We are given the points (-1, -3) and (-2, -5). We need to find the slope, equation of the line, and the y intercept of the line

First, let's find the slope

The formula for the slope (m) calculated from two points is \frac{y_2-y_1}{x_2-x_1} where (x_1,y_1) and (x_2,y_2) are points

We have everything we need for the formula, but let's label the values of the points to avoid any confusion

x1=-1

y1=-3

x2=-2

y2=-5

Now substitute into the formula (remember: the formula has SUBTRACTION):

m=\frac{-5--3}{-2--1}

simplify

m=\frac{-5+3}{-2+1}

add

m=\frac{-2}{-1}

divide

m=2

So the slope is <u>2</u>

Now let's find the equation of the line

The question asks for it to be in slope-intercept form, which is y=mx+b, where m is the slope and b is the y intercept

We calculated the slope from earlier, so let's substitute that into the equation

y=2x+b

Now we need to find b

The equation will pass through both (-1, -3) and (-2, -5) so we can use either one of them to solve for b (doesn't matter which one)

Let's take (-1, -3) as an example

substitute -1 as x and -3 as y into the equation

-3=2(-1)+b

multiply

-3=-2+b

Add 2 to both sides

<u>-1=b (the value of the y intercept!) </u>

Substitute -1 as b into the equation

<u>y=2x-1</u>

We found everything needed for this problem

Hope this helps!

8 0
3 years ago
if a square + b square + c square minus ab minus bc minus ca equals to zero, prove that A equals to B equal to C
lawyer [7]
A^2 + b^2 + c^2  - ab - bc - ca = 0
a.a + b.b + c.c = a.b + b.c + c.a

equating  term by term:- 
a = b
b = c 
c = a

Therefore a = b = c 
8 0
3 years ago
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