This question is confusing me.
Answer:
View Image
Step-by-step explanation:
Note that 1/√(2) is equal to √(2)/2:
1/√(2) = √(2)/2
So we're given that sin(x-20) = √(2)/2
The only place on the unit circle where sin() is equal to √(2)/2 is at π/4 and 3π/4.
That means the value inside the sine must be equal to π/4 and 3π/4:
since sin(π/4) = √(2)/2 and sin(π/4) = √(2)/2
then,
sin(π/4) = sin(x-20) and sin(π/4) = sin(x-20)
You set the inside of the parentheses equal to each other and solve for x.
You can also add a +2πk at the end since all sinusoidal graph repeats every 2π.
Answer:
The Temperature in the afternoon was .
Step-by-step explanation:
Given:
Temperature in the morning =
Rise in temperature =
We need to find the temperature in the afternoon.
Solution:
Now we know that;
temperature in the afternoon is equal to Temperature in the morning plus Rise in temperature in afternoon.
framing in equation form we get;
temperature in the afternoon =
Hence the Temperature in the afternoon was .
Answer:
Step-by-step explanation:
Range: [3, 8]
Find the measure of Angle DBE then find the measure of ∠ABD?
Answer:
angle DBE=
Step-by-step explanation:
We know that angle ABE is a right angle because 70+20=90. Therefore angle CBE is also a right angle.
Now, 90-40=50 (angle DBE's measure)
Based on this, we can know that 20+70+50=140. Angle ABD is 140 degrees.
HTH :)
Answer:
m<DBE =50°
m<ABD=150°
Step-by-step explanation:
Because of Straight Angles, All the angles will add up to 180 degrees
Let x be m<DBE
40+x+70+20=180
x+130=180
x=50
m<DBE will be 50 degrees
To find the m<ABD, we add m<FBA, m<FBE, m<DBE.
70+50+30=150
m<ABD = 150
False
The correct answer is:
True.
Explanation:
An association between two variables in a scatterplot is shown by most of the points following a pattern. This pattern can be linear or non-linear. The more closely the points seem to follow this pattern, the stronger the association.
An association in a scatterplot can be negative, meaning that as one variable increases the other decreases, or positive, meaning that as one variable increases the other increases as well. A negative association will appear to decrease on a graph, and a positive association will appear to increase on a graph.
Answer:
Brianna is right. The quotient is in the hundreds place ,because the first digit is 2 spaces to the left from the comma/period ,thus we know it's a hundred