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Contact [7]
2 years ago
4

A trebuchet launches a projectile on a parabolic arc from a height of 47 feet at a velocity of 40 ft/s.

Mathematics
1 answer:
Lisa [10]2 years ago
3 0

Answer:

First at

5/4 +(√3)/2s

then at

5/4 -(√3)/2

Step-by-step explanation:

h(t) = -16t^2 + 40t + 47 = 60

so all we need to do it find the solution of the equation

so 16t^2 - 40t + 13 = 0

and as we know

root = (-b+-√(b^2-4ac))/2a

so

root = 5/4 +-(√3)/2

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The table shows equivalent ratios. Which ratio is equivalent to 1 to 8?
Sedbober [7]
The answer is on the table.
3:24 and 5:40 are all equal to 1:8
6 0
3 years ago
Diana received 300 votes in the election for student council president. That was 60% of the students who voted in the election.
Helen [10]

Answer:

500 students.

Step-by-step explanation:

300 votes is 60%.

100%-60% is 40%

so 40% voted for the other person.

Work backwards:

x * 0.6=300

0.6x=300

x=300/0.6 which is 500.

500*0.4 is 200.

300+200 is 500.

Hope this helps :) I am terribly sorry if it is wrong or not using the number line.

7 0
3 years ago
Since 1965, U.S. quarters have been made
Irina18 [472]
The answer is 29.4 grams.
How to solve:

1. Convert $15 to quarters. You can do this by multiplying 15 by 4. You use 4 because 4 quarters equal to $1. This will equal to 60 quarters.

2. Multiply both 5.76 and 6.25 by 60 to find the weight of $15 in quarters for today and before 1965.
Today: 5.76 g x 60 = 345.6 grams
Before 1965: 6.25 g x 60 = 375 grams

3. Now that you have the weight of quarters for both time periods, subtract! 375 grams - 345.6 grams = 29.4 grams
6 0
3 years ago
Julianna has 32 pieces of candy in a jar. Julianna only has 2 kinds of candy, jolly ranchers and Twix. For every 4 Twix bars, sh
nexus9112 [7]

Answer:

the data set seems wrong, since for every 4twix bars, she had 2 pieces of jolly ranchers; so ratio 4 twix bars : 2 ranchers is to be use but it wouldn't work, it can only work for the first 30 candies ( 20twix bars and 10 ranchers) so the last 2 candies( if following the ratio will be 4/3 for the twix bars and 2/3 for the ranchers)

6 0
3 years ago
I need help with trig
Taya2010 [7]

Answer:

sinθ = p/h = 4/6= 2/3

θ = 41 degrees

7 0
3 years ago
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