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wariber [46]
3 years ago
12

The height of a volleyball, h, in feet, is given by h = −16t2 + 11t + 5.5, where t is the number of seconds after it has been hi

t by a player. The top of the net is 7.3 feet above the floor. Does the volleyball travel high enough to clear the top of the net?
Mathematics
1 answer:
slavikrds [6]3 years ago
3 0

Answer:

It will travel high enough

Step-by-step explanation:

Find the vertex of the parabola:

x=-b/2a

x=-11/2(-16)

x=-11/-32

x=11/32

Plug x=11/32 into quadratic to get the y-coordinate:

h=-16(11/32)^2+11(11/32)+5.5

h=7.391

Since 7.391>7.3, the volleyball will travel high enough (aka. yes)

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MArishka [77]
I think the answer is D.

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3 years ago
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Lydia is making spaghetti sauce at a community luncheon. Each batch requires 1⁄2 teaspoon of salt, 1⁄3 teaspoon of oregano, 1⁄4
Troyanec [42]

Salt is used in the largest quantity in Lydia's recipe.

<em><u>Explanation</u></em>

Required spices are......

Salt = \frac{1}{2} teaspoon , Oregano = \frac{1}{3} teaspoon, Crushed thyme = \frac{1}{4} teaspoon and Black peeper = \frac{1}{8} teaspoon

For finding the largest quantity, first we need to make the denominators of each fraction as equal and then identify the largest numerator.  

The denominators are 2, 3, 4 and 8 and their LCM(Least common multiple) will be 24. So.....

\frac{1}{2}= \frac{1*12}{2*12}=\frac{12}{24} \\ \\ \frac{1}{3}=\frac{1*8}{3*8}=\frac{8}{24}\\ \\ \frac{1}{4}=\frac{1*6}{4*6}=\frac{6}{24}\\ \\ \frac{1}{8}=\frac{1*3}{8*3}=\frac{3}{24}

As the largest numerator is 12 here, so the value of \frac{1}{2} is largest among all the fractions.

Thus, <u>Salt</u> is used in the largest quantity in Lydia's recipe.

5 0
3 years ago
Can someone help me please
vitfil [10]

Answer:i would say the answer is A

Step-by-step explanation:its my personal opinion i hope it helps

6 0
3 years ago
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Please help will mark Brainly
Brilliant_brown [7]

Answer:


Step-by-step explanation:

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7 0
3 years ago
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alina1380 [7]
The answer is: Each bag of flour weighs 1,32 kg. 

If we the total weight of the bags is given, and we know both the number of bags of flour and sugar, and we also know the weight of each bag of sugar, then we have to find the unknown, which is X. 30 times X plus 4 times the weight of a bag of sugar would equal 42.6kg. Next step is to put the unknown on one side and the known values on the other side. We have 30 times X equals 42.6 minus 4 times 0.75. 
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30X + 4*0.75 = 42.6
30X + 3 = 42.6
X = (42.6 - 3) / 30
X = 1.32 kg
7 0
3 years ago
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