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vivado [14]
3 years ago
7

Simplify: (2x – 3)2 4x2 + 9 4x2 – 12x + 9 4x2 – 12x + 6 4x2 – 6

Mathematics
2 answers:
vfiekz [6]3 years ago
8 0

Answer:

4x2–12x+9

Step-by-step explanation:

Alexxandr [17]3 years ago
7 0

Answer:

4x^2-12x+9

Step-by-step explanation:

we have

(2x-3)^2

we know that

(a-b)^2=a^2-2ab+b^2

In this problem

a=2x\\b=3

substitute in the formula

(2x-3)^2=(2x)^2-2(2x)(3)+(3)^2

(2x-3)^2=4x^2-12x+9

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Answer:

96 = 24 + 3b

96 students in all, 24 in cars and the rest in 3 buses

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3 years ago
Find the perimeter of this triangle ????
garri49 [273]

Answer:

6 by 8 or ( -4. 4)

Step-by-step explanation:

because that the answer

7 0
3 years ago
Given that WA = 5x – 8 and WC = 3x + 2, find WB. A. WB = 5 B. WB = 8 C. WB = 10 D. WB = 17
rodikova [14]
The rest of the question is the attached figure.
============================================
Δ AYW a right triangle at Y ⇒⇒⇒ ∴ WA² = AY² + YW²
And AY = YB ⇒⇒⇒ ∴ WA² = YB² + YW²   → (1)
Δ BYW a right triangle at Y ⇒⇒⇒ ∴ WB² = BY² + YW²  → (2)
From (1) , (2)  ⇒⇒⇒ ∴ WA = WB  →→ (3)
Δ CXW a right triangle at Y ⇒⇒⇒ ∴ WC² = CX² + XW²
And CX = XB ⇒⇒⇒ ∴ WC² = XB² + XW²   → (4)
Δ BXW a right triangle at Y ⇒⇒⇒ ∴ WB² = XB² + XW²  → (5)
From (4) , (5)  ⇒⇒⇒ ∴ WC = WB  →→ (6)
From (3) , (6)
WA = WB = WC
given ⇒⇒⇒ WA = 5x – 8 and WC = 3x + 2
∴ <span> 5x – 8 = 3x + 2</span>
Solve for x ⇒⇒⇒ ∴ x = 5
∴ WB = WA = WC = 3*5 + 2 = 17

The correct answer is option D. WB = 17






7 0
3 years ago
Read 2 more answers
For a segment of a radio show, a disc jockey can play 10 records. there are 14 records to select from, in how many ways can the
mixas84 [53]
The formula of combination is 

nCr= \frac{n!}{(n-r)!r!}

We have n=14 and r=10

14C10= \frac{14!}{(14-10)!10!} = 1001

Hence, there are 1001 ways of arranging 10 records from 14 records 
3 0
3 years ago
Mrs. Miller is planting pumpkin seeds. She
Artemon [7]

Answer: 31,755

Step-by-step explanation: You would just multiply 365 by 87 like this.

365 x 87

and the answer would be 31,755.

365 x 87 = 31,755

4 0
3 years ago
Read 2 more answers
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