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OLga [1]
3 years ago
6

Which integer can you multiply by itself to get 400 as the square number?.

Mathematics
2 answers:
posledela3 years ago
7 0

20 × 20 = 400.

Step-by-step explanation:

Crazy boy [7]3 years ago
4 0

Answer:

20x20=400 so 20 is your integer

Step-by-step explanation:

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8 0
3 years ago
1,2,3,4,5,6,7,8,9,10 solve plz thank you
GalinKa [24]
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8 0
4 years ago
Suppose that 600 yards of fencing material are available to fence in
postnew [5]

Answer:

Length = 150 yards

Width = 100 yards

Step-by-step explanation:

We want 600 yards of fencing that will result in the largest 2 fenced corrals, sharing a common border.

It will take the shape of a rectangle, with a dividing fence down the center.

Let W and L,  Width and Length of the larger enclosure.

See attachment.

W= Area of the larger enclosure.

The perimeter is 2W + 2L.

The dividing fence is 1W

We know that we only have 600 yards of fence, so:

2W + 2L + 1W = 600 yards

Area = W x L

---

3W + 2L  = 600    (yards)

2L  = 600 -3W

L = (600-3W)/2

L = 300 -(3/2)W

---

Use this expression in the Area calculation:

Area = W x L

Area = W x (300 -(3/2)W)

Area = 300W -(3/2)W^2)

To find the maximum area, take the first derivative and set to zero to find the value of W that results in the greatest area.

Area' = 300 -2(3/2)W)

0 = 300 - 3W

3W = 300

W = 100 yards

Since 3W + 2L  = 600

L = (600 - 3W)/2

L = (600 - 3(100))/2

L = 150 yards

Area = 150*100 = 15,000 yards^2

 

8 0
3 years ago
Number 3 please and thank you
ss7ja [257]
I think it's c probably
8 0
4 years ago
Read 2 more answers
For a study on a new cold medicine, a group of 100 participants with cold symptoms was studied for one month in the spring. One-
Ivenika [448]
One fifth of the participants is 1/5*100=100/5=20 is the number of the participants given medicine. So the number of participants given placebo is 100-20=80.

80% of the 80 who took placebo felt improvements, so 20% of 80, which is
(20/100)*80=(2/10)*80=160/10=16 is the number of participants who took placebo and felt no improvement.

P(choosing participant who took placebo and felt no improvement)=

n(participant who took placebo and felt no improvement)/n(participants)
=16/100=0.16


3 0
3 years ago
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