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2 answers:
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Answer:
x=-6.5
Step-by-step explanation:
Let's solve :
a.) The equation will be :
b.) the table will be like this :
- for x = 1 , y = -3
point (1 , -3)
- for x = 3 , y = -1
point (3, -1)
- for x = -1 , y = 3
point (-1 , 3)
- for x = -3 , y = 1
point (-3 , 1)
c.) graph the equation as shown in attachment !
Answer:
Step-by-step explanation:
Let be "x" the time in minutes a 150-pound person must walk at 4 mph to use at least 190 calories.
The amount of calories that a 150-pound person uses in 1 minute when walking at a speed of 4 mph is:
Therefore, knowing this, we can write the following proportion:
Finally, we must solve for "x" in order to find its value.
Multiplying both sides of the equation by 190, we get this result:
Answer:
1) a) 0.8
b) 0.6
2) a) 0.08
b) 0.14
Step-by-step explanation:
1) Given
and
Let us learn about a formula:
(a) If A and B are mutually exclusive i.e. no common thing in the two events.
In other words:
=
= 0
Using above formula:
(b) P(A and B) = 0.2
Using above formula:
*************************************
1) Given
and
Let us learn about a formula:
for dependent events
for independent events.
(a) If A and B are independent events :
Using the above formula for independent events:
(b)
Using above formula: