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disa [49]
3 years ago
11

Angle a and angle b are verticle angles if m PLEASE HELPLO

Mathematics
1 answer:
klemol [59]3 years ago
3 0
Can we get a picture please
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Which is greater, 12/17 or 5/8?
Vilka [71]

Answer:

5/8

Step-by-step explanation:

12/17 is 0.70

5/8 is 0.62

However, 12/17 had a lot more numbers than that so

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3 0
3 years ago
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An art teacher has 28 students in her first-period class and 24 students in her second-period class. If almost 30% of the studen
Goshia [24]
Answer:
C. 8


Explanation:
One way to solve this is to find 30% of each class, 28 and 24.

30% of 28:
28 • 0.30 = 8.4
30% of 24:
24 • 0.30 = 7.2

You can then find the average of these two numbers.

8.4 + 7.2 = 15.6
15.6 ➗ 2 = 7.8
7.8 rounds up to 8

Another way to solve is to first find the average number of people in each class.

28 + 24 = 52
52 ➗ 2 = 26

You can then find 30% of this number.

26 • 0.30 = 7.8
7.8 rounds up to 8

3 0
3 years ago
Please answer these questions it's very urgent please​
vesna_86 [32]

Answer:

29) 10

Step-by-step explanation:

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Firdavs [7]

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3

Step-by-step explanation:

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Moira does one-half if a homework assignment on Monday. In Tuesday, Wednesday, and Thursday, she does one-half of the homework s
vichka [17]

On Monday, Moira doees 1/2 her homework. (1/2 remains)

On Tuesday, Moira does 1/2 of 1/2 = 1/4 of her homework. (1/4 remains)

On Wednesday, Moira does 1/2 of 1/4 = 1/8 of her homework. (1/8 remains)

On Thursday, Moira does 1/2 of 1/8 = 1/16 of her homework. (1/16 remains)

On Friday, she must do the remaining homework: 1/16 of the original amount.

Using exponents, the homework (hn) that Moira accomplishes on day n is

... hn = (1/2)^n

Since Moira does half each day, the amount left undone is equal to the amount done. The amount left undone on Thursday (for Friday) is equal to the amount done on Thursday:

... h4 = (1/2)^4 = 1/16

_____

Perhaps you're to sum the amounts done and subtract that from the total. That's going at it the long way around, but will get you the same result.

(Needed to be done on Friday) = 1 - ∑[n=1,4] (1/2)^n = 1 - (1/2)((1/2)^4-1)/(1/2 -1)

... = (1/2)^4 = 1/16

The sum of n terms of a geometric sequence is given by

S_n=a_1\cdot\dfrac{r^n-1}{r-1}\qquad\text{$a_1$=first term, r=common ratio}

Here, we have a_1 = 1/2 and r = 1/2. Then the sum of 4 terms is as shown above.

6 0
3 years ago
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