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creativ13 [48]
4 years ago
7

Which of the following are solutions to the equation sinx cosx = 1/4? Check all that apply.

Mathematics
2 answers:
N76 [4]4 years ago
8 0
The solution is <span>B. π/12+nπ

</span>proof 
sinx cosx = 1/4 is equivalent to  2 <span>sinx cosx = 1/2 or sin2x =1/2
so 2x = arcsin(1/2) = </span>π/6 + 2nπ,  so x = π/12+nπ
Xelga [282]4 years ago
4 0

Answer:

Its B and D.

Step-by-step explanation:

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What are some words that relate to geometry but are difficult to precisely define
Yuki888 [10]

Answer:

  1. the point
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  3. the plane

Step-by-step explanation:

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8 0
3 years ago
Find the slope-intercept form of a line that goes through the point (-1,3) and is parallel to -x+3y=12
Aliun [14]
First, I would simplify the given equation to find the slope of the parallel line as it will be the same for the line we are looking for.
3y=x+12
y=(x/3)+4

Slope= 1/3

Our equation now looks close, but we need the intercept.
y=(x/3)+B

Plug in the given point to find the intercept.
3=(-1/3)+B
4/3=B

Plug all the known values into the equation to complete the slope-intercept form.
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6 0
3 years ago
6th grade math, help pleasee:)
Kamila [148]

Answer: a) v=12 feet

b) 1: 12

2: 24

3: 36

4: 48

Step-by-step explanation:

A) v=d/t

They give you 60 feet, which can be plugged in for d (distance), and 5 seconds which can be plugged into t (time).

So, v=60/5=12

B) Kendall runs 12 feet per second, so in the chart:

1 sec x 12 feet = 12 feet

2 sec x 12 feet = 24 feet

3 sec x 12 feet = 36 feet

4 sec x 12 feet = 48 feet

7 0
3 years ago
Solve for m: 6- m =m
lisov135 [29]
The answer should be m=3
7 0
3 years ago
Read 2 more answers
Factor completely 9r^3-72r^2
PtichkaEL [24]

Answer:

9r²(r - 8)

Step-by-step explanation:

Step 1: Write expression

9r³ - 72r²

Step 2: Factor out 9

9(r³ - 8r²)

Step 3: Factor out r²

9r²(r - 8)

6 0
3 years ago
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