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3 years ago

10th term of an= 20-2n

Mathematics

1 answer:

Dmitry [639]3 years ago

8 0

Answer:

We have that $a_{n} = 20-2n$

Step-by-step explanation:

We have just to replace n=10 on the general equation

$a_{10} = 20-2×10$

Therefore:

$a_{10} = 0$

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A sixth grade class has 12 boys and 24 girls. Q: For every 2 boys, there are 4 girls, do you agree with this statement? Explain

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3 years ago

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Carrie is finding the set of even numbers within the set of prime numbers. She starts by considering only positive numbers. Of t

MArishka [77]

Answer:

Option 3 is correct that is prime numbers.

Step-by-step explanation:

Even numbers are those which are divisible by 2

Prime numbers are the numbers which are divisible by 1 and the number itself

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Carrie has taken out the set of even number within the set of prime number

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Therefore, Option 3 is correct that is prime numbers.

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3 years ago

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What is the surface area of the cylinder with height 4 mi and radius 3 mi? Round your answer to the nearest thousandth.

Norma-Jean [14]

Answer:

The surface area of the cylinder will be "131.88".

Step-by-step explanation:

The given values are:

Height of cylinder,

h = 4 m

Radius of cylinder,

r = 3 m

As we know,

The surface are of cylinder is:

⇒ $A_s=2 \pi r(h+r)$

On substituting the values, we get

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3 years ago

Vance wants to determine if an old photo frame is still rectangular. The height of the frame is

sveticcg [70]

Answer:

<em>The old photo frame is still rectangular</em>

Step-by-step explanation:

<u>Rectangles</u>

The rectangle shape can be identified because it has 4 internal angles of 90° each. The diagonal forms with two adjacent sides a right triangle where the Pythagora's Theorem must stand. Being a and b the length of the sides of the rectangle and d the diagonal, then:

$d^2=a^2+b^2$

Vince's photo frame has dimensions of 8 inches and 6 inches, with a diagonal of 10 inches. If the above condition is met, then the frame is still rectangular.

Calculating:

$10^2=6^2+8^2$

$100=36+64$

$100=100$

Since the condition is met, the old photo frame is still rectangular

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3 years ago