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sergij07 [2.7K]
3 years ago
11

Using the sum or difference formulas,how do we find the exact value of sin (285°)?

Mathematics
1 answer:
Semenov [28]3 years ago
6 0
See attachment for the answer:

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Which expression shows the results of applying the distributive property to 3 (1/5x- 1/7)
marshall27 [118]

The first option: (3/5)x - 3/6

3 0
2 years ago
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Evaluate the expression 3(7 + 4)2 − 14 ÷ 7. 50 361 363 586
Kipish [7]
It appears that none of your option choices are correct,, are you sure you copied them right ? I will show you how to solve this and how I got my answer.
The first step for solving this is to add the numbers in the parenthesis.
3 × 11 × 2 - 14 ÷ 7
Divide -14 by 7.
3 × 11 × 2 - 2
Divide the first 3 numbers together.
66 - 2
Subtract the numbers together to get your final answer.
64
Let me know if you have any further questions.
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4 0
3 years ago
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Can you form a right triangle with the three lengths given? Why or why not? 4mi, 5mi, 6mi
Vladimir [108]
A right triangle must satisfy this equation: a^2 + b^2 = c^2 

a= shortest length
b=medium length
c=the longest length

a triangle with sides 4,5,6 will satisfy not this equation because:
4^2 + 5^2 ≠ 6^2 
16+25 = 41

41 ≠ 36

so the answer is C.

Hope this helps.

-Jabba

6 0
3 years ago
Read 2 more answers
Please help me right away.
velikii [3]
I’m pretty sure it’s c , sorry if it’s wrong tho
4 0
3 years ago
What constant term should be used to complete the square? x 2 - 5x + _____ = 7
amm1812
The quadratic equation in its generic form is:
 ax2 + bx + c
 To complete squares we must add the following term:
 (b / 2) ^ 2
 The equation is:
 ax2 + bx + c + (b / 2) ^ 2
 We have the following equation:
 x ^ 2 - 5x + k = 7
 By completing squares we have:
 x ^ 2 - 5x + (-5/2) ^ 2 = 7 + (-5/2) ^ 2
 Rewriting:
 x ^ 2 - 5x + 6.25 = 7 + 6.25
 Answer:
 
A constant term should be used to complete the square is:
 
6.25
4 0
3 years ago
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