Answer:
All of the above
Step-by-step explanation:
ALL of the above quadrilaterals have all these characteristics.
120 = 2x + x
120 = 3x
120/3 = x
40=x <- Solved for how many cds april has.
Since amy has twice as many cds, she would have 80 cds
Answer:
t=2.08 seconds.
Step-by-step explanation:
Well, in this example, H(t)=-0.6cos(2pi/2.5)t+1.5 should be equal to 1.2. If calculated, -0.6cos(0.8pi)t=1.2-1.5 which is equal to -0.6cos(0.8pi)t=-0.3, then cos(0.8pi)t=0.5. The value of cosine in terms of radians when it is equal to 0.5 is pi/3. So, cos(0.8pi)t=cos(pi/3). If simplified, (0.8pi)*t=5pi/3. pi's are cancelled out and t is calculated as 2.08333... If rounded to the nearest hundredth it is 2.08.
The value of y in 
is 6/7
<h3>How to solve for y?</h3>
The equation is given as:
Open the bracket
-3 = 7y - 9
Add 9 to both sides of the equation
7y = 6
Divide both sides by 7
y= 6/7
Hence, the value of y in is 6/7
Read more about equations at:
brainly.com/question/2972832
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<u>Complete question</u>
Solve for y
