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valentina_108 [34]
3 years ago
9

Pls help me I really need it.

Mathematics
2 answers:
Alex Ar [27]3 years ago
8 0

Answer: its the first one i think

Step-by-step explanation

Mariulka [41]3 years ago
4 0

Answer:

87,069.6 cm³

Step-by-step explanation:

V = (4/3)πr³

r = d/2 = 55 cm/2 = 27.5 cm

V = (4/3)(3.14)(27.5 cm)³

V = 87,069.6 cm³

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A ball was tossed up into the air. The height of the ball as a function of the time the ball is in the air in seconds can be mod
Andrei [34K]

The height of the ball 2 seconds after being thrown is 20.8m

In order to get the required quadratic function, we need to write the given information as coordinate.

  • If the time the ball was initially thrown in the air, it was 7. 5 meters off the ground, this is written in a coordinate form as (0, 7.5)

  • If after 1. 25 seconds, the ball was at its maximum height of 15.3125 meters in a coordinate form as (1.25, 15.3125)

Get the slope of the equation;

m=\frac{15.3125-7.5}{1.25-0}\\m= \frac{7.8125}{1.25}\\m= 6.25

Get the y-intercept "b"

Recall that y = mx + b

7.5=6.25(0) + b\\7.5 = b\\ b= 7.5

Get the required equation:

y = 6.65x + 7.5

Next is to get the height of the ball 2 seconds after being thrown

y = 6.65x + 7.5\\y = 6.65(2)+ 7.5\\y=13.3 + 7.5\\y=20.8m

Hence the height of the ball 2 seconds after being thrown is 20.8m

Learn more on functions here: brainly.com/question/1214333

3 0
3 years ago
7. Calculate the selling price of a $350 camera with a 35% mark-up sale price.
lubasha [3.4K]

Answer:

10) 3/5=a/15

a=9

9) 6/100×300

18$

8) 100-57.5

=42.5percent

7) 35/100×350

.=$122.5

3 0
4 years ago
How many non square lie between square of 49 and 50​
den301095 [7]
All numbers between 49^2 and 50^2 are non squares. There are (50+49-1) such numbers.
6 0
4 years ago
a gazelle can run away from a cheetah with a speed of 35.0 m/s. if the average gazelle has a mass of 40.00 kg, what is the gazel
bezimeni [28]

9514 1404 393

Answer:

  24.5 kJ

Step-by-step explanation:

Kinetic energy is given by the formula ...

  KE = 1/2mv² . . . . . where m = mass

The gazelle's kinetic energy is ...

  KE = 1/2(40 kg)(35 m/s)² . . . . . where m is meters

  = 24,500 J . . . . . . 1 J = 1 kg·m²/s²

  = 24.5 kJ . . . . . . . 1000 J = 1 kJ

7 0
3 years ago
100 points! you just have to answer these all with purpose and try your hardest!
frutty [35]

Answer:

Step-by-step explanation:

Mary bought 1 fish, Ari bought 20 fish, Rodney bought 4 fish, Carissa bought 3 fish, Jacob bought 4 fish, Jack bought 1 fish, Jaleesa bought 2 fish, Andrea bought 5 fish, Geoff bought 1 fish, Becky bought 4 fish, Molly bought 1 fish, David bought 2 fish, Gina bought 7 fish, James bought 1 fish, Anessa bought 2 fish, Ted bought 1 fish, Sean bought 2 fish, Kerri bought 11 fish, Sammy bought 3 fish, Jameson bought 2 fish, Theresa bought 2 fish, Luz bought 2 fish, Tracy bought 4 fish, Jackson bought 5 fish, and Celia bought 7 fish.

Rewrite the numbers

1,20,4,3,4,1,2,5,1,4,1,2,7,1,2,1,2,11,3,2,2,2,4,5,7

1.

a: I can't draw a line plot, but I can tell you some tips.

Set the x as the different numbers that appear in the set

Set the y as the frequency of each number.

b: 2 fish has the highest frequency.

c: Add the terms. 97 is the total fish been bought

d: The outlier is 20 bought fish

2.

a: When making the stem and leaf plot, do it in this format

1| 7,4,3,5,8,4

and so on.

b: the heaviest puppy is 25 and the lightest is 13

so the range is 12

c: 4 puppies weighed at least 20 pounds

3. There are no following values, but for this I would make a box and whisker plot.

4. There is no histogram but it should be relatively easy if you know which aspect of the graph to use.

a: Find the frequency of each bar and add them.

b: the largest number of boxes is the interval that is the largest

c: Use the graph to find it

d: I can't do this without the graph.

4 0
4 years ago
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