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Harrizon [31]
3 years ago
12

a rock is thrown straight up into the air from a height of 4 feet. the height of the rock above the ground, in feet, t seconds a

fter it is thrown is given by -16t^2+56t+4. for how many seconds will the height of the rock be at least 28 feet above the ground?
Mathematics
1 answer:
77julia77 [94]3 years ago
6 0
18 is the answe skikiii
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Please help me out........ :)
Serhud [2]

Answer:

x = 5

Step-by-step explanation:

For the parallelogram to be a square we use the property

The diagonals of a square are congruent, hence

12x - 23 = 4x + 17 ( subtract 4x from both sides )

8x - 23 = 17 ( add 23 to both sides )

8x = 40 ( divide both sides by 8 )

x = 5

3 0
3 years ago
The sums of two prime numbers is 85.what is the product of these two numbers
vladimir1956 [14]
So prime numbers are numbers which cant be divided by any number other than one and these are <span>2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, </span>61<span>, </span>67<span>, </span>71,73<span>, </span>79<span>, </span><span>83

83+2 is 85
so the product is the two numbers multiplied together which is 166</span>
4 0
3 years ago
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TJ rented a truck to move to a new apartment. The regular price of a truck rental is $200. TJ has a 15% off coupon, He wants to
Elina [12.6K]

Answer: $170

Step-by-step explanation:

15% of 200 is equal to $30.

200 - 30 = 170

The answer to the question is 170.

8 0
3 years ago
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What value of Y makes the equation true y + (-0.32) = 0.37
krok68 [10]

Hello,

Let's solve your equation step-by-step.

y−0.32=0.37

Step 1: Add 0.32 to both sides.

y−0.32+0.32=0.37+0.32

y=0.69

Answer:

y=0.69

hope i helped


5 0
3 years ago
Someone help me pls i need to pass summer school
aleksandr82 [10.1K]
16 to the 0 power 16 to the 0 power 16 to the 0 power 16 to the 0 power 16 to the 0 power
3 0
3 years ago
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