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Marizza181 [45]
3 years ago
14

Expand & simplify (3x-4)^2 - (x+1)(x-1) Please anyone? I'm really bad at maths-

Mathematics
1 answer:
Mnenie [13.5K]3 years ago
5 0
The answer would be 8x^2-24x+17
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Helppp guys i really don't get it​
AysviL [449]

9514 1404 393

Answer:

  (b) ... confirm ∠C≅∠E

Step-by-step explanation:

The first step is to read and understand the problem statement. It is asking for a way to prove ΔABC ~ ΔADE  by AA similarity. That means you want to show any two of the three ...

  • ∠A≅∠A
  • ∠B≅∠D
  • ∠C≅∠E

For this purpose, lengths of line segments are irrelevant (eliminating the last two answer choices). The fact that ∠A≅∠A is given, so you only need to find an answer choice that will show one of the last two angle congruences.

Obviously, showing ∠B≅∠E (choice A) is not relevant to the problem.

The only answer choice that is relevant to the question is the second one, showing ∠C≅∠E.

8 0
3 years ago
In an election of housing society,there are 30 voters.Each of them gives the vote.Three persons X,Y and Z are standing for post
MAVERICK [17]

Answer:

Mr Y got 10 votes

Step-by-step explanation:

The election of the housing society has 30 voters. Each of them gives the vote. The three person vying for the post of secretary are X, Y and Z.

Le us calculate the votes of each contestant

Mr X

He got 2/5 of the total votes

number of votes = 2/5 × 30

number of votes = 60/5

number of votes = 12

Mr Z

He got 1/4 of the total votes

number of votes = 1/4 × 30

number of votes = 30/4

number of votes = 1/4 × 30

number of votes = 7.5 ≈ 8 votes

Mr Y

The remaining votes will be 30 - 12 - 8 = 10 votes

Therefore,

Mr Y got 10 votes

4 0
3 years ago
Simplify the expression. Show all of your work. 16 plus 4 cubed times 2 divided by 16
frozen [14]

Answer:

528

Step-by-step explanation:

Question: 16 + 4^{3} * 2 ÷ 16

Work:

4^{3} = 64

2/16 = 0.125

64/0.125 = 512

512 + 16 = 528

4 0
3 years ago
Set of multiples of 3 less than 15?​
geniusboy [140]

Answer:

3,6,9,12,15

Step-by-step explanation:

5 0
2 years ago
Logan's e-reader sent a notification saying that he has completed 75% of the e-book.
Vika [28.1K]

Answer:

The total number of pages in the e-book is 240.

Step-by-step explanation:

Given:

Logan has completed 75%

Logan has read 180 pages

To Find:

The total number of pages in the e-book= ?

Solution:

Let X be the total number of pages on the e-book

then

=> 75% of X = 180

Now lets find the value of X

X = \frac{180}{75\%}

X = \frac{180}{\frac{75}{100}}

X = \frac{180}{0.75}

X = 240

5 0
3 years ago
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