18:30 can be expressed as 18/30
18/30 simplifies into 6/10
6/10 simplifies into 3/5
Answer:
its A
Step-by-step explanation:
Answer:
Step-by-step explanation:
Slope-intercept form is , where m is the slope, and b is the y-intercept. They tell us the slope is 9, so . They also tell us that the y-intercept is (0,-13), which means that . Plugging both of those values in gives us the equation:
Answer:
Write the equation as x minus 89 = 7 and add 89 to both sides. The answer is 96.
Step-by-step explanation:
Difference means subtraction. So, x-89=7. To solve it, we are going to add 89 to both sides of the equation, which gives us x=7+89, which is x=96. So, the answer is the second one: Write the equation as x minus 89 = 7 and add 89 to both sides. The answer is 96.
Answer:
At both 0.78 and 1.3 seconds, to the nearest hundredth, the ball will be at 20 feet.
Step-by-step explanation:
We can use two approaches to finding the answer: Calculation and Graphing.
<u>Calculation:</u>
Set h to 20 feet and solve the equation using the quadratic formula.
h= 4 + 33t - 16t^2
20= 4 + 33t - 16t^2
- 16t^2 + 33t + 4 = 20
- 16t^2 + 33t + -16 = 0
Solve using the quadratic formula. I find solutions of 0.779 and 1.28 seconds.
<u>Graphing:</u>
See the attached graph.
The ball is at 20 feet at 0.783 seconds on the way up and 1.28 seconds on the way back down.
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Both approaches agree: 0.78 and 1.3 seconds, to the nearest hundredth, the ball will be at 20 feet.