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3 years ago

What is the answer to my question? No links please. Urgent.

Mathematics

2 answers:

babunello [35]3 years ago

6 0

Answer:

57cm^3

i belive this is right.

Olin [163]3 years ago

5 0

53cm to the 3rd power

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12. Ellen is at a hydroplane boat show. Starting from 1.0 miles away, the boat drives toward her and then passes her. The boat t

iVinArrow [24]

One approach would be to find an equation describing the progress of the boat in a straight line in Ellen's direction FROM ITS STARTING POINT. The initial distance would be 1.0 miles, and the distance as a function of time would be d = 1.0 miles + (70 mph)x, where x is the elapsed time. When would the boat be .85 miles from Ellen?

Set the above distance formula = to 0.85 mile:

0.85 mile = 1.0 mile + (70 mph)x

-0.15 mile = -(70 mph)x
0.15 mile
x = ------------------ =
70 mph

When the boat starts out, its distance from Ellen is 1.0 mile. The boat speeds towards Ellen at 70 mph. We want to know how long it takes for the boat to cover 0.85 mile from its starting point, which would be 0.15 mile from Ellen in front of her.

distance = rate times time

Here the distance is 0.85 mile, and the rate is 70 mph.

The time required is then 0.85 mile
------------- = 0.0121 hour, or
70 mph
0.0121 hour (60 minutes / 1 hour), or

0.729 minute, or

43.7 seconds

8 0

3 years ago

Plz help me simply algebra problem

Sonja [21]

Answer:

Step-by-step explanation:

$a^{m}*a^{n}=a^{m+n}\\\\\frac{a^{m}}{a^{n}}=a^{m-n}$

$\frac{-9p^{-5}(-7)r^{-7}(-4)p^{-4}}{4p^{-10}3p^{10}4p^{-2}}=\frac{(-9)*(-7)-(-4)*r^{-7}*p^{-5+(-4)}}{4*3*4*p^{-10+10+(-2)}}\\\\=\frac{(-3)*(-7)*(-1)r^{-7}p^{-9}}{1*1*4*p^{-2}}\\\\=\frac{(-21)r^{-7}p^{-9 - (-2)}}{4}\\\\=\frac{-21r^{-7}p^{-9+2}}{4}\\\\=\frac{(-21)r^{-7}p^{-7}}{4}$

5 0

3 years ago

A shipment to a warehouse consists of 4,000 MP3 players. The manager chooses a random sample of 50 MP3 players and finds 5 that

k0ka [10]

Answer:400

Step-by-step explanation:If 1 in 10 are defective, 400 of the 4000 would be defective

3 0

3 years ago

gretchen is baking pies. she needs 1/4 vup of butter fir each pie. one stick of butter os 1/2 cup. how many sticks will she need

Fed [463]

For one pie Gretchen will need 1/2 of a stick of butter

4 0

3 years ago

A tournament is being run between two teams, A and B. This is a 2- tournament meaning that the first team to win 2 games is the

natta225 [31]

Answer:

Step-by-step explanation:

For first game PA = 1/3

For second game PA = 1/3 ( If A is not lost in first game )

= 2/5 (If A is lost in first game )

For conclusion of game in three matches :

If A wins , the probability is

PA , PB , PA = 1/3 X 2/3 X 3/5 = 6/45

PB , PA , PA = 2/3 X 3/5 X 1/3 = 6/45

If B wins

PA, PB, PB = 1/3 X 2/3 X 2/5 = 4/ 45

PB, PA , PB = 2/3 X 3/5 X 2/3 = 4 / 15

Total probability of conclusion of game in 3 matches

= 6/45 +6/45 + 4/45 +4/15 = 28/45

b )

For the game concluding in 2 matches , the probability are as follows

PA,PA = 1/3 X 1/3 = 1/9

PBPB = 2/3 X 2/5 = 4 / 15

Total probability

= 1/9 + 4/15 = 17/45

So PA = 1/9 / 17/45

= 5/17

5 0

3 years ago