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3 years ago

PLEASE HELP 20 POINTS

Mathematics

1 answer:

Tanzania [10]3 years ago

7 0

The sinusoid makes a complete oscillation (i.e. 360°) every 3 seconds. So, in one second it makes 1/3 of a turn, leading to 360°/3 = 120°.

So, the correct answer is the last one.

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On the last day of a Shakespeare class, an English teacher asked her students which play they liked most. Out of the 20 students

Bumek [7]

Answer: 6

Step-by-step explanation:

if 10 out of the 20 liked r&j the most. half of those 20 liked it the most, so, based on that, the out of the next group of students (12 here) half of them you should expect to answer with r&j being there favorite

7 0

3 years ago

Use Gauss's approach to find the following sums (do not use formulas) a 1+2+3+4 998 b. 1+3+5 7+ 1001 a The sum of the sequence i

valkas [14]

Answer:

(a) 498501

(b) 251001

Step-by-step explanation:

According Gauss's approach, the sum of a series is

$sum=\frac{n(a_1+a_n)}{2}$ .... (1)

where, n is number of terms.

(a)

The given series is

1+2+3+4+...+998

here,

$a_1=1$

$a_n=998$

$n=998$

Substitute $a_1=1$ , $a_n=998$ and $n=998$ in equation (1).

$sum=\frac{998(1+998)}{2}$

$sum=499(999)$

$sum=498501$

Therefore the sum of series is 498501.

(b)

The given series is

1+3+5+7+...+ 1001

The given series is the sum of dd natural numbers.

In 1001 natural numbers 500 are even numbers and 501 are odd number because alternative numbers are even.

$a_1=1$

$a_n=1001$

$n=501$

Substitute $a_1=1$ , $a_n=1001$ and $n=501$ in equation (1).

$sum=\frac{501(1+1001)}{2}$

$sum=\frac{501(1002)}{2}$

$sum=501(501)$

$sum=251001$

Therefore the sum of series is 251001.

8 0

3 years ago

Solve for Y:

FinnZ [79.3K]

Answer:

y=3

Step-by-step explanation:

5 0

4 years ago

Can someone please solve number 9 and ten please

netineya [11]

Answer:

In question number 9 I think is: 3. In question number 10 is: 3. If is not corect well...Im sorry I tried my best :) Hope it helps!

Step-by-step explanation:

3 0

3 years ago

Can some help please

aniked [119]

Answer:

6.7

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers