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Marta_Voda [28]
3 years ago
14

use the information on justines test paper to express the part of the 80 test questions she got correct as a fraction,percent an

d decimal she got 68 correct
Mathematics
1 answer:
kompoz [17]3 years ago
5 0
<span>  80 divide by 68 is 1.17647058824</span>
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Which point on the number line best represents the location of root of 92.16
tatuchka [14]

Answer:

Point P

Step-by-step explanation:

9.59 is closer to 10 than 9, so we can safely say that points m and n cannot be correct. Point q can also not be correct, because it is to close to 10.

Therefore, answer is: Point P

5 0
3 years ago
Scientific notation for 321,003,271 plz help
miv72 [106K]

Answer:

3.21003271 x 10^8

Step-by-step explanation:

1. Add a decimal to the end of the number

2. Move the decimal left until your number is less than 10 but greater than 1

3. Count how many times you moved your decimal

4. Write the number of times you moved your decimal as the exponent

Sorry if the steps confuse you also Scientific Notation is my specialty

5 0
3 years ago
Read 2 more answers
Consider 4 flips of an unfair coin where probability of heads is 0.40. Consider all tosses independent of each other. (a) Compar
romanna [79]

Answer:

a) 0.0256 = 2.56% probability of 4 heads.

0.1296 = 12.96% probability of 4 tails.

b) The probability is 0.0576 = 5.76%.

c) 6 outcomes given 2 heads in 4 tosses. 0.3456 = 34.56% probability of 2 heads in 4 tosses

Step-by-step explanation:

For each throw, we have these following probabilities:

0.4 = 40% probability of heads.

0.6 = 60% probability of tails.

(a) Compare the probability of 4 heads in 4 tosses and 4 tails in 4 tosses.

4 heads:

4 throws, each with 0.4 probability of heads. So

(0.4)^4 = 0.0256

0.0256 = 2.56% probability of 4 heads.

4 tails:

4 throws, each with 0.6 probability of tails. So

(0.6)^4 = 0.1296

0.1296 = 12.96% probability of 4 tails.

(b) Determine the probability of H T H T in 4 tosses.

H = 0.4, T = 0.6. So

p = 0.4*0.6*0.4*0.6 = 0.0576

The probability is 0.0576 = 5.76%.

(c) Determine the number of outcomes that give us 2 heads in 4 tosses in any order. What is the probability of 2 heads in 4 tosses (use (b) and the number of outcomes)

Number of outcomes:

The possible outcomes are:

H - H - T - T

H - T - H - T

H - T - T - H

T - H - H - T

T - H - T - H

T - T - H - H

6 outcomes given 2 heads in 4 tosses.

Each with probability 0.0576, as found in b)

6*0.0576 = 0.3456

0.3456 = 34.56% probability of 2 heads in 4 tosses

8 0
3 years ago
Two fishing boats leave the same dock at the same time. One boat heads northeast and is travelling at a speed of 15 km/h while t
fgiga [73]

The angle between their paths to the nearest degree is 68⁰.

<h3>Displacement of each boats after 45 minutes</h3>

first displacement, a = 15 km/h  x (45/60)

first displacement, a = 11.25 km

second displacement, b = 18 km/h  x (45/60)

                                     b = 13.5 km

<h3> Angle between their paths to the nearest degree</h3>

c² = a² + b² - 2ab(cosθ)

2ab(cosθ) = a² + b² - c²

cosθ =  (a² + b² - c²)/(2ab)

cosθ = (11.25² + 13.5² - 14²) / (2 x 11.25 x 13.5)

cosθ = 0.371

θ = arc cos(0.371)

θ = 68.22 ⁰

Thus, the angle between their paths to the nearest degree is 68⁰.

Learn more about angles here: brainly.com/question/25716982

#SPJ1

4 0
2 years ago
True OR False. For Multi-Step Equations: Combine Like Terms first, then Distribute.​
arsen [322]

Answer:

True

Step-by-step explanation:

4 0
3 years ago
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