Saylilbaby
  • Saylilbaby
can someone help with these two questions...I will give medals and fan..? 7. The perimeter of a rectangle is 50 feet and its area is 154 feet. What are the dimensions of the rectangle? 8. Stephanie is a very good soccer player. She can kick a soccer ball with an initial velocity of 21.3 m/sec. The function that represents the height of the ball with respect to time is ℎ 𝑥 = −4.9𝑥2 + 21.3𝑥. About how many seconds will it take for the ball to hit the ground?
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
Saylilbaby
  • Saylilbaby
@Awolflover1 @pooja195 @AngusV @Preetha @robtobey
Vocaloid
  • Vocaloid
for the first one: area = length*width and perimeter = 2(length+width) we know that area = 154 = l*w, we can solve this equation for w by dividing both sides by l 154/l = w then, you can substitute this for w in the perimeter equation to find w, then use the area equation to find l for the second one: h(x) = −4.9𝑥2 + 21.3𝑥 when the ball is on the ground, that means h(x) = 0 (height = 0) so, to find the time it takes for the ball to reach the ground, set h(x) = 0 and solve for x one of the x values will be 0 and the other x value will be your answer

Looking for something else?

Not the answer you are looking for? Search for more explanations.