2 years ago

If 8, x, 18 form a geometric sequence , find a value for x

Mathematics

2 answers:

Nadusha1986 [10]2 years ago

6 0

Answer:

Step-by-step explanation:

it goes up by 5 every time

katrin [286]2 years ago

4 0

Answer: 13

Step-by-step explanation: It goes up by 5 so 8, 13, 18, 23, and etc

Please tell me if I'm wrong

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Write the Point Slope Form of the line of slope 5 and passing through the point (1, -1)

Otrada [13]

Answer: y+1 = 5(x-1)

Step-by-step explanation:

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3 years ago

What is the power of 256

Juli2301 [7.4K]

In mathematics. 256 is a composite number, with the factorization 256 = 28, which makes it a power of two. 256 is 4 raised to the 4th power, so in tetration notation 256 is 24.

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3 years ago

A restaurant menu has five kinds of soups, seven kinds of main courses, six kinds of desserts, and five kinds of drinks. If a cu

ryzh [129]

Answer: 1050

Step-by-step explanation:

Number of combinations of selecting r things out of n = $^nC_r=\dfrac{n!}{r!(n-r)!}$

such that $^nC_1=n$

Given: A restaurant menu has 5 kinds of soups, 7kinds of main courses, 6 kinds of desserts, and 5 kinds of drinks.

If a customer randomly selects one item from each of these four categories, then by fundamental counting principle , the number of different outcomes are possible = $^5C_1\times \ ^7C_1\times\ ^6C_1\times\ ^5C_1 =5\times7\times6\times5=1050$