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Olegator [25]
4 years ago
5

Sin75° + sin15º = sin75 – sin15° =

Mathematics
1 answer:
alekssr [168]4 years ago
3 0

Answer: False

Step-by-step explanation:

The left side

1.22474487 does not equal to the right side 0.70710678, which means that the given statement is false.

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HELP ME THIS IS DUE RN. ILL give 50 points and brainiest.
Maru [420]

Answer:

y = 8x + 21

Step-by-step explanation:

3 0
3 years ago
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Please help it’s for 50 points
amid [387]

Step-by-step explanation:

3√8 is irrational number, and

2√18 is also irrational number

3√8 + 2√18 =

3×2√2 + 2×3√2 =

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the correct answer is

A. the sum of two irrational numbers is irrational.

4 0
3 years ago
What’s the circumference of this shape?xx
VikaD [51]

The hypotenuse of the triangle would be the diameter of the semi circle.

Using the Pythagorean theorem you can find that.

8^2 + 6^2 = x^2

64 +36 = x^2

100 = x^2

x = √100

x = 10

The diameter is 10, now find the circumference.

Circumference = diameter x PI = 10 x 3.14 = 31.4

Since it is a semi circle, the circumference would be 1/2 of that.

31.4 / 2 = 15.7

The perimeter would be 8 + 6 + 15.7 = 29.7

7 0
3 years ago
Tamara's dosage of medication has recently decreased 20 milligrams per day. What is the total decrease in Tamara's medication at
Leviafan [203]
7x20 = 140 making that the total amount of decrease per week. Hope this helps!
6 0
4 years ago
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True or False. To select 3 items out of 4 distinct objects, use C(4,3).
kenny6666 [7]

Answer:

True.

Step-by-step explanation:

C(4, 3) means the number of combinations from 4 items taking 3 at a time.  We are selecting 3 distinct items and it doesn't say anything about the order in which they are selected , so we use  a combination formula  not a permutation ( where order does matter).

C(4, 3)  = 4! / 3! 1!

= 4*3*2*1 / 3*2*1*1

= 4.

There are 4 ways to select 3 items from 4.

6 0
3 years ago
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