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madreJ [45]
3 years ago
5

Carson drives to school the same way each day, and there are two independent traffic lights on his trip to school. he knows that

there is a 30% chance that he will have to stop at the first light and an 80% chance that he will have to stop at the second light. what is the probability that he will not have to stop at either light?
Mathematics
2 answers:
vodka [1.7K]3 years ago
8 0
0.3x0.8=0.24 so 24% chance he wont have to stop i think
Vinil7 [7]3 years ago
4 0

Answer:

14% is the probability he wont have to stop at either light

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Which of the following graphs best represents the solution to the pair of equations below? y = −x + 6 y = 2x − 3 A coordinate pl
Lera25 [3.4K]
The lines are 

i)  y=-x+6
ii) y=2x-3

The solution of the system of equations is found by equalizing the 2 equations:

-x+6=2x-3

-2x-x=-6-3

-3x=-9

x=-9/(-3)=3

substitute x=3 in either i) or ii):

i)  y=-3+6=3
ii) y=2(3)-3=6-3=3

(the result is the same, so checking one is enough)

This means that the point (3, 3) is a point which is in both lines, so a solution to the system.

In graphs, this means that the lines intersect at (3, 3) ONLY


Answer: The graph where the lines intersect at (3, 3)
3 0
3 years ago
Look at the pic attached
Anni [7]

Answer:

x= -8 BDC= 68

EXPLANATION:

They create a straight angle which is always equal to 180. this means you must add both equations and set them equal to 180.

7 0
3 years ago
What value of a makes the equation true?<br><br><br><br> 1.7a+0.3a=4/5<br> btw 4/5 is a fraction
andreyandreev [35.5K]
1.7a + 0.3a = 0.8;
(1.7 + 0.3)a = 0.8;
2 x a = 0.8;
a = 0.8 ÷2;
a = 0.4;
5 0
3 years ago
What is the factored form of x^2-x-2
tekilochka [14]

For this case we have:

By definition, the factorization is an algebraic expression that is used to find two or more factors, taking into account that the product of these factors must be equal to the given expression.

That is to say:

Given an expression of the form x ^ 2 + (a + b) x + ab

We can factor in the following way:

(x + a) (x + b)

Since, its product is: x ^ 2 + bx + ax + ab = x ^ 2 + (a + b) x + ab,

checking the given definition.

If we have:

x ^ 2-x-2

We can factor:

(x-2) (x + 1)

When making your product we obtain:x ^ 2 + x-2x-2 = x ^ 2-x-2

Answer:

(x-2) (x + 1)


6 0
3 years ago
I got this for my classwork does anyone know how to solve this step by step​
Nataly_w [17]

Answer:

http://www.cssdrive.com/

Step-by-step explanation:

7 0
2 years ago
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