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e-lub [12.9K]
3 years ago
13

Answers to fill in this table?????

Mathematics
1 answer:
Sladkaya [172]3 years ago
3 0

The total of can counts - 397

The total  of cannot counts - 110

Total number of boys - 263

Total number of girls - 244

The FULL total - 507

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A.<br> B.<br> C.<br> D.<br><br><br> Help me please
scZoUnD [109]

Answer:

A

Step-by-step explanation:

An event that is not affected by other events. Example: tossing a coin. Heads or tails is not affected by previous tosses.

8 0
2 years ago
A plane flying horizontally at an altitude of 3 miles and a speed of 500 mi/h passes directly over a radar station. Find the rat
konstantin123 [22]

Answer:

The rate at which the distance from the plane to the station is increasing is 331 miles per hour.

Step-by-step explanation:

We can find the rate at which the distance from the plane to the station is increasing by imaging the formation of a right triangle with the following dimensions:

a: is one side of the triangle = altitude of the plane = 3 miles

b: is the other side of the triangle = the distance traveled by the plane when it is 4 miles away from the station and an altitude of 3 miles

h: is the hypotenuse of the triangle = distance between the plane and the station = 4 miles                    

First, we need to find b:    

a^{2} + b^{2} = h^{2}   (1)    

b = \sqrt{h^{2} - a^{2}} = \sqrt{(4 mi)^{2} - (3 mi)^{2}} = \sqrt{7} miles

Now, to find the rate we need to find the derivative of equation (1) with respect to time:

\frac{d}{dt}(a^{2}) + \frac{d}{dt}(b^{2}) = \frac{d}{dt}(h^{2})

2a\frac{da}{dt} + 2b\frac{db}{dt} = 2h\frac{dh}{dt}

Since "da/dt" is constant (the altitude of the plane does not change with time), we have:  

0 + 2b\frac{db}{dt} = 2h\frac{dh}{dt}

And knowing that the plane is moving at a speed of 500 mi/h (db/dt):

\sqrt{7} mi*500 mi/h = 4 mi*\frac{dh}{dt}

\frac{dh}{dt} = \frac{\sqrt{7} mi*500 mi/h}{4 mi} = 331 mi/h  

Therefore, the rate at which the distance from the plane to the station is increasing is 331 miles per hour.

I hope it helps you!

4 0
2 years ago
1. 3x + x - 2x + 8 = 3x + x
FinnZ [79.3K]

Step-by-step explanation:

1. 3x+x-2x+8=3x+x

x-2x+8=x

x+8=x+2x

8=2x

8÷2=4

x=4

2. 2(2x+4)-2x=x+18

8+4x-2x=x+18

8+2x=x+18

2x=x+10

x=10

3. 2(x+3)+3x

2(5+3)+15

16+15

31

4. 3(2x)-3x+4=2x+5

6x-3x+4=2x+5

3x+4=2x+5

3x-2x+4=5

x=1

5. 3x+2x+x=x+6

6x=x+6

5x=6

x=6/5

6. 2(x+4)+x=16

2x+8+x=16

3x+8=16

3x=8

x=8/3

Hope I calculated it right you can check it in calculator

3 0
2 years ago
Anybody good at geometry I need help with this worksheet
Llana [10]

Answer:

Number 1: x≈4.9412824

Number 2: x=3√10,−3√10x=310,-310

Decimal Form:

x=9.48683298...−9.48683298...

Number 3: x≈−5.04938819

Number 4: x=−1+2√6,−1−2√6x=-1+26,-1-26

Decimal Form:

x=3.89897948…,−5.89897948…

Number 5: x=−7+√93,−7−√93x=-7+93,-7-93

Decimal Form:

x=2.64365076…,−16.64365076…

Number 6: x=1+i√3910,1−i√3910

6 0
2 years ago
At 0.918 atm and 56.3 ºC a sample of gas occupies 116.9 L. What volume does it occupy at 0.114 atm and 1.6 ºC
snow_tiger [21]
PV=nRT  since we are only using P,V, and T we have the relationship

PV=T then PV/T=k now we can compare the two conditions...

0.114V/1.6=0.918(116.9)/56.3

V=(1.6*0.918*116.9)/(56.3*0.114)

V≈26.75 L
5 0
3 years ago
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