3 years ago

PLEASE HELP I DONT KNOW

Mathematics

1 answer:

AlekseyPX3 years ago

6 0

Answer:

18 or 80 if I am not mistaken

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HELP ME PLZ PLZ PLZ!

Triss [41]

Answer:

I don't know the value of either, could you add more information?

Step-by-step explanation:

I'd be glad to help.

6 0

3 years ago

Three coins are flipped,what is the Probability of getting one HEAD and two TAILs?

san4es73 [151]

The probability of getting at most 2 tails is 7/8

7 0

4 years ago

A wireless phone company charges a monthly fee of $39.99 plus $0.49 per minute for usage that exceeds the included minutes. Writ

Marizza181 [45]

Answer:

$54.20

Step-by-step explanation:

minute=m

total monthly cost = p

39.99 + .49m = p

39.99 + .49(29) =p

39.99 + 14.21 =p

54.2 =p

3 0

4 years ago

Type the missing number in this sequence: –2, –4, –8, , –32, –64 Questions

Charra [1.4K]

Answer:

-16

Step-by-step explanation:

The sequence pattern is ×2

-4 × 2 is -8

-8 × 2 is -16

-16 × 2 is -32

4 0

3 years ago

Read 2 more answers

Given that cos(30°) = cos(45°)cos(15°) + sin(45°)sin(15°), it follows that cos(30°) =

mario62 [17]

Answer:

$cos(30\°) = cos(45\°-15\°)$

Step-by-step explanation:

To solve this problem you must know the formula of subtraction of angles for the function cosx.

The formula is:

$cos(h-d) = cos(h)cos(d) + sin(h)sin(d)$

We can write 30° as: 45° - 15°

Then:

$cos(30\°) = cos(45\°-15\°)$

Using the formula for subtraction of angles we have:

$cos(45\°-15\°) = cos(45\°)cos(15\°) + sin(45\°)sin(15\°)$

Notice that we have achieved the expression shown in the statement

Finally:

$cos(30\°) = cos(45\°-15\°)$

8 0

3 years ago

Read 2 more answers