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Fynjy0 [20]
3 years ago
6

A little while ago, a dolphin was swimming below sea level at -7 meters.Now the dolphin is jumping at 0.5 meters. What does this

mean?
Mathematics
2 answers:
professor190 [17]3 years ago
5 0

Answer:

The Dolphin is 0.5 meters above sea level

Step-by-step explanation:

anzhelika [568]3 years ago
4 0
The dolphin jumped 7.5 meters because it took 7 meters to reach sea level and it jumped 0.5 meters above sea level so 7+.5=7.5 m
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HELP IN NEED!
laiz [17]

Answer:

AB=12\sqrt{3}\ cm

Step-by-step explanation:

If AB is tangent to the circle, then angle ABO is right angle and triangle AOB is special 30^{\circ}-60^{\circ}-90^{\circ} triangle. In this triangle, the leg that is opposite to the angle of 30° is half of the hypotenuse. Thus,

AO=2BO=2\cdot 12=24\ cm.

By the Pythagorean theorem,

AB^2=AO^2-BO^2,\\ \\AB^2=24^2-12^2,\\ \\AB^2=576-144=432,\\ \\AB=12\sqrt{3}\ cm.

6 0
3 years ago
Two factories I and II produce phones for brand ABC. Factory I produces 60% of all ABC phones, and factory II produces 40%. 10%
denpristay [2]

Answer:

0.3721 or 37.21%

Step-by-step explanation:

P(I) = 0.60; P(II) = 0.40;

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The probability that the phone came from factory II, given that is not defective, is determined by the probability of a phone from factory II not being defective divided by the probability of a phone not being defective.

P(II|not) = \frac{P(II)*P(not_{II})}{P(II)*P(not_{II})+P(I)*P(not_{I})}\\P(II|not) = \frac{0.40*0.80}{0.40*0.80+0.60*0.90}\\ P(II|not) =0.3721 = 37.21\%

The probability is 0.3721 or 37.21%.

4 0
3 years ago
A number is divided by 3. That quotient is increased by 12. The result is 46. Find the number.
anzhelika [568]

Let the number be x.

x/3 + 12 = 46

Subtract 12 from both sides and you will get:

x/3 = 34

Multiply both sides by 3:

x = 102

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3 years ago
The capacities of four barrels are 75 L , 63 L , 95 L , and 46 L . Plot the values on the vertical number line.
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3 years ago
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Lady bird [3.3K]

Answer:

130

Step-by-step explanation:

I don' know my explanation.

6 0
3 years ago
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