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2 years ago

Please help fast !! 50 points !

Mathematics

2 answers:

zubka84 [21]2 years ago

7 0

Answer:

the 3rd answer

Step-by-step explanation:

ale4655 [162]2 years ago

3 0

Answer:

-2 + 25

Step-by-step explanation:

2 times -1 = -2

5 times 5 = 25

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In the diagram of O, m∠JOK = 60° and OJ = 6 in. What is the exact area of the shaded region?

Sophie [7]

Answer: 6π

<u>Step-by-step explanation:</u>

Area of a circle is π r².

Area of a section of a circle is π r² × the section of the circle.

$A=\pi r^2\bigg(\dfrac{\theta}{360^o}\bigg)$

Given: r = 6, Ф = 60°

$A=\pi (6)^2\bigg(\dfrac{60^o}{360^o}\bigg)\\\\\\.\quad =\pi (6)^2\bigg(\dfrac{1}{6}\bigg)\\\\\\.\quad =6\pi$

3 0

2 years ago

A deer population is declining by 2.2% per year. The population can be modelled using the formula p = 240(0.978)n , where P is t

ale4655 [162]

Answer:

The current deer population is 240.

Step-by-step explanation:

The expression given models a exponential decay follows:

$p(n) = 240*(0.978)^n$

For every year that passes since the beginning of the count the population is 0.978 of the year prior. Assuming that the count starts at this year, then "n" is equal to 0, applying this value of n to the formula gives us:

$p(0) = 240*(0.978)^0\\p(0) = 240*1 = 240$

The current deer population is 240.

3 0

2 years ago

Choose a counterexample that proves that the conjecture below is false.. abc is a right triangle, so angle A measures 90 degrees

andre [41]

Choose a counterexample that proves that the conjecture below is false.. abc is a right triangle, so angle A measures 90 degrees.

Answer: Out of all the options shown above the one that represents the counterexample that proves that the conjecture presented above is false is answer choice 2. Angle b is 90 degrees. The reason being that in a right angle there is only one angle that measures 90 degrees.

I hope it helps, Regards.

6 0

3 years ago

Read 2 more answers

How to solve 4k-1.5k=50

padilas [110]

Combine like terms-- you can combine the k's:
$4k-1.5k=2.5k$

Now you have:
$2.5k=50$

Simply divide both sides by 2.5 to find the value of k:
$\frac{2.5k}{2.5}=\frac{50}{2.5}\\\\k=20$

6 0

2 years ago

Line RS bisects PQ at point R. Find RQ if PQ = 4 3/4

svetlana [45]

PQ is bisected by RS at R. It means that PRQ is a line segment with PR = RQ and each of half of PQ.

RQ = PQ/2 = 1/2 [ 4 3/4 ] = 1/2 * 19/4 = <em>19/8 </em> = 2 3/4

8 0

2 years ago

Read 2 more answers