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3 years ago

Given the arithmetic series 2 4 6...=420. find the first term a and the common difference d

Mathematics

1 answer:

Trava [24]3 years ago

7 0

First term is 2 and the common difference is the value by which it increases which is 2.

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Two questions

melamori03 [73]

Use PEMDAS method to execute operations in the following order:

Parentheses
Exponents
Multiplication
Division
Addition
Subtraction

First equation:

12 + (38 - 18)2 = 12 + 20 × 2 = 52

Second equation:

(12)2 - 6(2 - 23) = 24 - 6(-21) = 24 + 126 = 150

Hope this helps.

5 0

3 years ago

Can I Please have some help with this question. 30 Points!!!

zavuch27 [327]

Answer:

x=14

Step-by-step explanation:

8 0

4 years ago

A wire that is 22 feet long connects the top of a pole to the ground. The wire is attached to the ground at a point that is 10 f

Ksju [112]

Answer:

19.6ft (nearest tenth)

Step-by-step explanation:

Please refer to the attached photo for better understanding.

Given Length of Wire = BC = 22ft

Given Distance from Grounded Wire to Base of Pole = AC = 10ft

Length of Pole = AB

We can use Pythagoras' Theorem to find Length of Pole, AB.

By Pythagoras' Theorem,

$c^{2} =a^{2} +b^{2} \\BC^{2} =AB^{2} + AC^{2} \\22^{2} =AB^{2} +10^{2} \\484=AB^{2} +100\\AB^{2} =484-100\\AB=\sqrt{384} ft\\=19.6ft (nearest tenth)$

6 0

2 years ago

A bicycle lock requires a two-digit code of numbers 1 through 9, and any digit may be used only once. Which

bekas [8.4K]

Answer:

what math is this

Step-by-step explanation:

6 0

3 years ago

Find the value of x:

bixtya [17]

Answer:

Step-by-step explanation:

note: your question doesn't contain enough information

so I took it as midsegment

my answer is correct if it's midsegment

6 0

3 years ago

Read 2 more answers