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aliina [53]
4 years ago
15

SOMEONE PLZ HELP ME!!!

Mathematics
1 answer:
Natali [406]4 years ago
6 0

Answer:

The answer to this question is B

Step-by-step explanation: By simplifying both equations to a x = ? both equations lead up to x = -7. Inversely, you can multiply both sides of the first equation by -3 and get the same equation as the second equation.


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Find the measure of angle B. PLZ I NEED HELP ASAP!!!!!
katrin [286]

Answer:

1)D 2)A 3)D 4)A 5)A

I hope this help but in question 6 you can report

3 0
3 years ago
Order the ratios from least to greatest
aliina [53]
Where the ratios tho.
3 0
3 years ago
PLEASE HELP!!!! WILL GIVE BARAINLYIST!!!!
Klio2033 [76]

Experimental probability = 1/5

Theoretical probability = 1/4

note: 1/5 = 0.2 and 1/4 = 0.25

=============================================

How I got those values:

We have 12 hearts out of 60 cards total in our simulation or experiment. So 12/60 = (12*1)/(12*5) = 1/5 is the experimental probability. In the simulation, 1 in 5 cards were a heart.

Theoretically it should be 1 in 4, or 1/4, since we have 13 hearts out of 52 total leading to 13/52 = (13*1)/(13*4) = 1/4. This makes sense because there are four suits and each suit is equally likely.

The experimental probability and theoretical probability values are not likely to line up perfectly. However they should be fairly close assuming that you're working with a fair standard deck. The more simulations you perform, the closer the experimental probability is likely to approach the theoretical one.

For example, let's say you flip a coin 20 times and get 8 heads. We see that 8/20 = 0.40 is close to 0.50 which is the theoretical probability of getting heads. If you flip that same coin 100 times and get 46 heads, then 46/100 = 0.46 is the experimental probability which is close to 0.50, and that probability is likely to get closer if you flipped it say 1000 times or 10000 times.

In short, the experimental probability is what you observe when you do the experiment (or simulation). So it's actually pulling the cards out and writing down your results. Contrast with a theoretical probability is where you guess beforehand what the result might be based on assumptions. One such assumption being each card is equally likely.

7 0
3 years ago
A driver noted that he has traveled 8 miles in the last 10 minutes. What is his average speed in miles per hour?
Charra [1.4K]

Answer:

48 miles per hour.

Step-by-step explanation:

There are 60 minutes in an hour

Divide 60 by 10= 6

Multiply 8 by 6=48

7 0
4 years ago
Which pair(s) of numbers has (have) a greatest common factor of 7?
ddd [48]

Answer:

7 and 14

Step-by-step explanation:

6 0
3 years ago
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