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arsen [322]
2 years ago
8

Joe tosses a quarter into the air. He does this 30 times. How many times should he expect it to land on heads?

Mathematics
1 answer:
oee [108]2 years ago
4 0

Answer:

Step-by-step explanation:

If it is a fair coin, he should expect heads about 1/2 the time.

1/2 of 30 = 15

He should expect 15 heads.

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the time t required to drive a certain distance varies inversely with the speed, r. if it takes 4 hours to drive the distance at
valina [46]
Hello,

Answer A

d :the distance in miles
t: the time in hours
v: the speed in miles/hours (vistesse)


d=v*t
==>d=40*4=160(mi)

d=55*x=160==>x=160/55=2.909090... (mi/(mi/h)=h)≈2.91(hours)
8 0
3 years ago
For triangle ABC, find the measure of AB given me∠ A = 55 degrees, m∠b= 44 degrees, and b=6. . A. 45.22. B.96.68. C.88.19. .
jekas [21]
There exist a similar question where b = 68 instead of 6. First, determine the measure of the third angle, angle C,
                               m∠c = 180 - (55° + 44°) = 81°
Let x be the side AB, that which is opposite to angle C. Through the Sine Law,
                                  68 / sin 44° = x / sin 81°
From the equation, the value of x is equal to 96.68. Thus, the answer is letter B. 
4 0
3 years ago
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There are twice as many students on Mr. Sneed's team as on Mr. Johnson's team. Together, they want to raise 360$ to buy uniforms
KatRina [158]

Answer:

720

Step-by-step explanation:

6 0
3 years ago
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What is 300/250 in simplest form
Semenov [28]
300/250 can be divide by 50 which makes it 6/5
7 0
3 years ago
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What is the equation of the line in standard form?<br> 3x−y=−6 3x + y = 6 x + 6y = 9 x−6y=−9
lisabon 2012 [21]

The standard form: Ax + By = C

3x - y = -6  YES - A = 3, B = -1, C = -6

3x + y = 6   YES - A = 3, B = 1, C = 6

x + 6y = 9   YES - A = 1, B = 6, C = 9

x - 6y = -9   YES - A = 1, B = -6, C = -9

8 0
3 years ago
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