MATHEMATICS MIDDLE SCHOOL

Sequences kind of confuse me, so could someone help?​
sequences kind of confuse me, so could someone help?​ - 1

Answers

Answer 1
Answer:

Answer:

C

Step-by-step explanation:

Consider the number of triangles in each diagram

1 → 1 → 2^(0)

2 → 2 → 2^(1)

3 → 4 → 2²

4 → 8 → 2³

The pattern of triangles is 1, 2, 4, 8, that is

2^(0), 2^(1), 2², 2³

Note that the exponent is one less than the figures position in the pattern, thus

a_(n) = 2^(n-1) → C

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over the last 50 years, the average temperature has increased by 2.5 degrees worldwide. what is the rate of change in worldwide temperatures per year?
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6.3 x 10'-8 in standard notation
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How many milliliters are equal to 3 L

Answers

"Milli" means "thousand," so 1 liter (L) is a thousand milliliters!  Therefore, 2 liters equals 2 thousand milliliters (multliply both liters and milliliters by 2), and 3 liters equals 3 thousand milliliters!

Answer: 3,000 milliliters
3000 milli liters is equal to 3L

Seattle Washington received rain on 7/10 of the day and a recent months if this pattern continues about how many days would it not rain in 90 days

Answers

If I understood correctly:

on 7 out of 10 days it's raining? so on 3 out of 10 days it is not raining. (10-3=7)

and the question is: in 90 days, on how many of those would it rain and on how many not? ( correct me if I'm wrong, I think You had some typos and I couldn't understand the question)

so in 90 days there are 9 times 10 days. If in every one of those 10 days on 7 it's raining, then it's raining on 9*7=63 days!

and days when it is not raining are: 90-63=27!

Connor runs at a constant rate. it takes him 34 minutes to run 4 miles

Answers

D=ratespeed x Timehr

D/T = Rate of Speed

1hr=60 min. or 1hr/60min

1hr. x 34min = .567 hr
-----
60min

Now: 4mile/.567 = 7.06 mile/hr = rate of speed

Check:

34/60x 7.0 = 4.00

Which statement about the best estimation strategy for this problem is correct? The Jackson family drove 490 miles each day for 9 days. They then flew 1,292 miles. How far did the Jackson family travel? A student answered 5,702 miles. A. 500 × 9 + 1,300 = The student's answer was reasonable. B. 500 ÷ 9 + 1,300 = The student's answer was not reasonable. C. 400 × 9 + 1,200 = The student's answer was not reasonable. D. 400 ÷ 9 + 1,200 = The student's answer was not reasonable.

Answers

If you would like to know which statement for this problem is correct, you can find this using the following steps:

490 miles * 9 days + 1,292 miles = 5,702 miles ... 500 miles * 9 days + 1,300 miles = 500 * 9 + 1,300 = 5,800 miles

The correct result would be: A. 500 × 9 + 1,300 = The student's answer was reasonable. 

Jamina drove for 2 hours at an average speed of 40km/h. She then drove for 3 hours at an average speed of 50km/h. What was her average speed for the whole journey?

Answers

Remark

Average Speed = Total distance divided by total time.

Total Time

2 hours + 3 hours = 5 hours.  The total time is 5 hours.

Total Distance

d = rate  * time

d1 = 40 km/hour * 2 hours = 80 km

d2 = 50 km/hour * 3 hours = 150 km

d = d1 + d2

d = 80 + 150 = 230 km

Average Speed

Av = Total distance / Total Time = 230 / 5 = 46 km/hr

What is the experimental probability of spinning an "A" ? Round your answer to the nearest hundredth if necessary.mY LAST Question got deleted so i'll just ask the one

Answers

Answer:

C: .27

Step-by-step explanation:

Add the numbers 20, 11, 14, 30

20 + 11 + 14 + 30 = 75

Divide by what is the time the spinner landed on the letter A by the total

20/75 = .26666667

Round the number to the nearest hundredth and you get

.27
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