MATHEMATICS HIGH SCHOOL

Carrie rolls 2 fair dice and adds the results from each.Work out the probability of getting a total more than 9.

Answers

Answer 1
Answer:

Answer:

it is a 1 in 4 chance

Step-by-step explanation:

8 is the out come with more than 9 and 36 is the total number of out comes

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Use linear combination. To solve system
-2x+7y=10
X-3y=-3

Answers

-2x + 7y = 10 ⇒ -2x + 7y = 10
   x - 3y = -3   ⇒ -2x + 6y = 6 
                                      y = 4
                         -2x + 7(4) = 10
                           -2x + 28 = 10
                                   -28   -28
                                   -2x = -18
                                    -2      -2
                                       x = 9
                                  (x, y) = (9, 4)
so
use elimintation
multily second equation by 2
2x-6y=-6
add to first equation

2x-2x+7y-6y=10-6
y=4
subsitute
x-3(4)=-3
x-12=-3
add 12 to both sdies
x=9


x=9
y=4

What adds to 3 and multiplies to -28

Answers

The answer:  7 and -4.
7+-4=7-4=3
7*-4=-28

4 brothers share 3 pizzas equally.
How much of a pizza does each brother get ?

Answers

4 brothers /3 pizzas  = 3/4 each

4 x 3/4 = 12/4 
12/4 = 3 pizzas
3/4. No matter how many pizzas there are, if we divided each pizza to 4 slices, each one gets one slice from each pizza, that is 1/4 of a pizza for each brother. Since there are 3 slices of pizza, simply multiply 3*1/4=3/4.
 Hope this helped and if you need more help then just message me instead ok :) 

oe is preparing 18 hot dogs for his party. However, Joe only has 12 hot dog buns. How many more hot dog buns does Joe need?*

Answers

Solve:-

18 hot dogs
12 hot dog bun
1 hot dog = 1 hot dog bun

18 - 12 = 6

So, Oe needs 6 more hot dog buns.
he needs 6 more buns

Which is most likely the correlation coefficient for the set of data shown?–0.872
–0.191
0.191
0.872

Answers

Answer:

the answer is -0.872

Step-by-step explanation:
The correct answer is:

0.872.

Explanation:

The correlation coefficient of a regression line is a measure of how closely the line fits our data.  Negative correlation coefficients represent decreasing lines; positive correlation coefficients represent increasing lines.

The closer a correlation coefficient is to +1 or -1, the better the fit; a perfect positive fit is r=1 and a perfect negative fit is r=-1.

We can see in the graph that the line is very close to our data, so it is a pretty good fit.

The line is increasing; this means we want a correlation coefficient that is close to 1.

The best choice is 0.872.

Which of the following is most likely the next step in the series?
​

Answers

Answer:

D

Step-by-step explanation:
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