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Inessa [10]
3 years ago
5

PLEASE HELP ME WITH THESE TWO QUESTIONS PLEASE

Mathematics
2 answers:
Y_Kistochka [10]3 years ago
5 0

Answer: the first one is D and the second one is B

Step-by-step explanation:

Sedaia [141]3 years ago
3 0

Answer:

The first one is D and the second one is B

Step-by-step explanation:

Hoped this help :)

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Please I really need help!
emmasim [6.3K]

Answer: It is D

Step-by-step explanation:

6 0
3 years ago
20 POINTS!!!!!!
olya-2409 [2.1K]

Answer:

Cup 1 acts as a control group.

Step-by-step explanation:

Control group: The group used in the experiment by the researchers in which no change in the variable is done. It is then set as a benchmark for the groups which are being tested.

We are given 4 groups which are being experimented for the flotation of an egg in water.

Since in Cup 1, there is no addition of salt

So, there is no change in the variables.

So, by definition of control group .

So, cup 1 acts as a control group since there is no change in the variable .

Hence, the correct answer is Option 1.

Cup 1 acts as a control group.

3 0
3 years ago
You have a basketball trophy in your room. The ball on the trophy has a diameter of 9 inches. What the volume of the ball?
saveliy_v [14]

Answer:

381.51 in^3

Step-by-step explanation:

Volume of a sphere = 4/3 x pi x r^3

r = 9/2 = 4.5

4/3 x 3.14 x 4.5^3 = 381.51 in^3

7 0
3 years ago
2.22+1.66+5.8= work it out
amid [387]

Answer:

9.68

Step-by-step explanation:

add the whole numbers

2 + 1 + 5 = 8

now add the decimals

.22 + .66 + .8 = 1.68

8 + 1.68 = 9.68

8 0
3 years ago
Madelyn uses 58 beads to make a necklace. she plans to sell 36 necklaces at each craft fair she goes to this summer.she plans to
BaLLatris [955]
8352 beads; you take 36 necklaces times 4. Then you take that answer times 58. Madelyn will use 8352 beads at all crafts fairs.
5 0
3 years ago
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