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Bad White [126]
3 years ago
8

A ² + b ² + 2 (ab + bc + ca)

Mathematics
1 answer:
Marta_Voda [28]3 years ago
6 0

Answer: = a^2 + 2ab + 2(ac+ b^2 + 2bc)

Step-by-step explanation:

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I really don't understand Adding and Subtracting Fractions with unlike Denominators?
vazorg [7]

Answer:

answer is 9/16 (9 over 16) Decimal form 0.5625

Step-by-step explanation:

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2 years ago
There are 30 tickets numbered as 1, 2, 3, 4, 30 respectively. One random. What is the probability that the number on the ticket
Anna007 [38]

Answer:

  • 2/3 or 66.66%

Step-by-step explanation:

Out of 30 numbers, half is multiple of 2 and the third is multiple of 3.

We have 15 even numbers and 10 multiples of 3. Out of 10, half is even numbers and  therefore counted twice.

<u>So we subtract 5 to get:</u>

  • 15 + 10 - 5 = 20 numbers

<u>If we chose one ticket at random the probability is:</u>

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7 0
3 years ago
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B = 22, mZZ = 30°; Find a.
mamaluj [8]

Answer:

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Step-by-step explanation:

6 0
3 years ago
In ΔEFG, the measure of ∠G=90°, the measure of ∠E=40°, and EF = 75 feet. Find the length of GE to the nearest tenth of a foot
juin [17]

Answer:

19.4 feet

Step-by-step explanation:

Since the triangle has a right angle( as one of the angles in it is equal to 90°), we may find the length of the unknown side using the trigonometric notations SOH CAH TOA where

SOA stands for

Sin Ф = opposite side/hypotenuses side

Cosine Ф = adjacent side/hypotenuses side

Tangent Ф = opposite side/adjacent side

Given that the measure of ∠G=90° and  ∠E=40°

EF is the hypotenuse side

FG is the opposite side and

GE is the adjacent side. As such if EF = 75 feet

Cos 75 = GE/75

GE = 75 Cos 75°

= 19.41 feet

≈ 19.4 feet in the nearest tenth of a foot

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3 years ago
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2 years ago
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