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Olin [163]
3 years ago
12

Someone please help!!!

Mathematics
1 answer:
djyliett [7]3 years ago
5 0
#3.  the probability of spinning "rock" is 25% or 1/4  so we can use this probability to predict the number of times we would expect to get "rock" in 80 spins as follows:
25% of 80 = .25(80) = 20  So how likely is it we spin 20 'rock' out of 80 spins?  At 25%, not very likely..

#4. 
A.  True
B.  True
C.  False, the theoretical probability of make make using the spinner is 
\frac{3}{4} ( \frac{3}{4)} = \frac{9}{16} or about 56%
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Find the x- and y-intercepts of the following equation:<br> 2x+3y=-24
Ilya [14]

Answer:

Algebra 

 Topics 

How do you find the intercepts of x2y−x2+4y=0?

Algebra  Graphs of Linear Equations and Functions  Intercepts by Substitution

2 Answers

Gió

Mar 24, 2015

For the intercepts you set alternately x=0 and y=0 in your function:

and graphically:

Answer link

Alan P.

Mar 24, 2015

On the X-axis y=0

So

x2y−x2+4y=0

becomes

x2(0)−x2+4(0)=0

→−x2=0

→x=0

On the Y-axis x=0

and the original equation

x2y−x2+4y=0

becomes

(0)2y−(0)2+4y=0

→y=0

The only intercept for the given equation occurs at (0,0)

Answer link

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4 0
2 years ago
How to solve 6x + y= -5, -6x + 12y=96 using elimination and does it have no solution or many solutions?
Alika [10]

Answer:

x = -2

Step-by-step explanation:

Arrange 6x + y= -5, -6x + 12y=96 vertically:

6x + y= -5

-6x + 12y=96       Now combine like terms:

--------------------

       13y = 91

Solving for y by dividing both sides by 13:  y = 7

Find x by substituting 7 for y in the second equation:  -6x + 12(7) = 96

Then -6x = -84 + 96, or:

-6x = 12, and so x = -2

8 0
2 years ago
What 878.9-89.51 i need help i dont understand
Marina86 [1]

Answer: 789.39

Step-by-step explanation: Just subtract 89.51 from 878.9.

Mark Brainliest if this helped!

3 0
3 years ago
find the present and future value of $1000 received every month end for 20 years if the interest rate is j12=12%p.a
GenaCL600 [577]

Answer:

asasassasas

Step-by-step explanation:

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3 years ago
How many quarts of pure antifreeze must be added to 5 quarts of a 40​% antifreeze solution to obtain a 50​% antifreeze​ solution
GarryVolchara [31]

Answer:

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3 years ago
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