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sertanlavr [38]
3 years ago
8

Okay I’m good at right triangles and Pythagorean theorem but I don’t know about is one please help

Mathematics
1 answer:
Bess [88]3 years ago
8 0

Answer:

x=2

Step-by-step explanation:

When you sub in these values for the pythagorean theorem you get 1.5^2+x^2=2.5^2

2.25+x^2=6.25

4=x^2

x=2

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Assume that a fair six-sided die is rolled 13 times, and the roll is called a success if the result is in {1,2,3,4}. What is the
Deffense [45]

Answer:

The answer to the question is;

The probability that there are exactly 4 successes or exactly 4 failures in the 13 rolls is \frac{715}{8192}.

Step-by-step explanation:

The probability of success = 1/2 =

probability of failure  = 1/2

Since we have 4 success we then have 9 failures and the given probability can be solved as ₁₃C₄ × 1/2ⁿ×1/2¹³⁻ⁿ

Therefore  we have

₁₃C₄ × 1/2⁴×1/2⁹ =  715/8192

That is the probability that there are exactly 4 successes or exactly 4 failures in the 13 rolls = 715/8192.

5 0
3 years ago
What is the force required to move a 2,000 kg car with an acceleration of 2 m/s/s?
Airida [17]

We know that According to Newton's Second Law that :

Force acting on an object is equal to the Mass of that Object multiplied by the Acceleration of that Object.

Given Mass of the Car as : 2000 kg

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6 0
3 years ago
Read 2 more answers
At 3pm the temperature was 9 degrees .By 11pm ,it had dropped 31 degrees .What was the temperature at 11pm
o-na [289]

Answer:

-22

Step-by-step explanation:

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5 0
3 years ago
The monthly fees for the local pool are $8 per month
Liono4ka [1.6K]

Given:

Monthly fees for the local pool are $8 per month  and $2 per visit.

Hector pays $34 in pool fees total for  the month.

To find:

The number of times he visit the pool.

Solution:

We have,

Monthly fee of pool = $8

Additional fee = $2 per visit

Let Hector visit x times.

Additional fee for x times = $2x

Total fee = Monthly fee + Additional fee

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26=2x

Divide both sides by 2.

\dfrac{26}{2}=x

13=x

Therefore, Hector visit the pool 13 times.

3 0
2 years ago
Karens batting average was 0.444. She was at bat 45 times. How many hitd did she get?
Igoryamba
Average of 0,444 in 45 battings can be wirtten as:

45 * 44,4% = 19,98

After rounding it up it'll give us 20 and that's exactly how many hits Karen got.
7 0
3 years ago
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