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Leni [432]
3 years ago
12

How do I do this problem

Mathematics
1 answer:
alexira [117]3 years ago
5 0
X^2 - 9....factor
= x^2 - 3^2
= (x+3)(x-3)
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What is the area of the shaded rectangle
Contact [7]

Answer:

27/70

Step-by-step explanation:

9/10 of the rectangle is shaded on the top and 3/7 of the rectangle is shaded on the side. Multiply those values together to find the area of the shaded rectangle.

9/10 · 3/7 = 27/70

4 0
3 years ago
Find the value of 105 squred using bionomial expansion using (a+b) squred=a squred+2ab + b squred
skad [1K]

Answer:

<h2>11025</h2>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about: </h3>
  • algebra
<h3>let's solve:</h3>
  1. \sf rewrite \: 105 \: as \: 100 + 5 :  \\  \sf (100 + 5 {)}^{2}
  2. \sf use \: (a + b {)}^{2}  =  {a}^{2}  + 2ab +  {b}^{2} \:  to \: simplify :  \\  \sf  {100}^{2}  + 2.100.5 +  {5}^{2}
  3. \sf simplify \: squres :  \\  \sf 10000 + 2.100.5 + 25
  4. \sf simplify \: multipication :  \\  \sf10000 + 1000 + 25
  5. \sf simplify \: addition :  \\  \sf \: 11025
8 0
3 years ago
Which of these equations have no solution? Check all that apply.
Llana [10]
2(x + 2) + 2 = 2(x + 3) + 1
2x + 4 + 2 = 2x + 6 + 1
2x + 6 = 2x + 7 - NO SOLUTION
(subtract 2x from both sides, then 6 = 7 FALSE)

2x + 3(x + 5) = 5(x – 3)
2x + 3x + 15 = 5x - 15
5x + 15 = 5x - 15 - NO SOLUTION

4(x + 3) = x + 12
4x + 12 = x + 12 - ONE SOLUTION

4 – (2x + 5) = (–4x – 2)
4 - 2x - 5 = -4x - 2
-2x - 1 = -4x - 2  - ONE SOLUTION

5(x + 4) – x = 4(x + 5) – 1
5x + 20 - x = 4x + 20 - 1
4x + 20 = 4x + 19 - NO SOLUTION




3 0
3 years ago
Read 2 more answers
Spiral Review (CC5,NBT.2. CC.S.NBT.6, CC,S.DVF. 1)
kotegsom [21]

Answer:

The answer is A

Step-by-step explanation:

(2*38)=76

(2*2)=4

5 0
3 years ago
Math Help Please??? Don't Answer If Unsure Please?
enot [183]
#1: 
Solve:
-5/12 x 8/13 = -40/156 
-40/156 can both be divided by 4: 40 ÷ 4 = 10 & 156 ÷ 4 = 39
Your final answer is: Option 2, -10/39

#2
Solve: 
3/8 x (-3/6) you can first simplify 3/6 into 1/2 so-- 3/8 x (-1/2) = -3/16
Your answer is: -3/16

I've solved two of them for you, can you solve the rest on your own? (Reply if you need more answers)
5 0
3 years ago
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