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joja [24]
2 years ago
5

Someone please help me!! I'll give brainliest

Mathematics
1 answer:
MariettaO [177]2 years ago
4 0

Answer:

sorry to answer late but..

Step-by-step explanation:

\frac{1}{75} cm = \frac{scale }{real}

the wings of the real plane are 12 meters or 1200 cm

we want to solve for the scale, sooo do the algebra...get scale by it self..

real * \frac{1}{75} = scale

1200 * \frac{1}{75} = 16

The scale model wings are 16 cm   2.54 cm is one inch so the wings are approx.  6.3 inches

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<img src="https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20-%2022x%20%20%2B%20121" id="TexFormula1" title=" {x}^{2} - 22x + 121"
eduard

Let's factor x^2−22x+121

The middle number is -22 and the last number is 121. Factoring means we want something like

(x+_)(x+_)

Which numbers go in the blanks? We need two numbers that...

Add together to get -22

Multiply together to get 121

Can you think of the two numbers?

Try -11 and -11:

-11+-11 = -22

-11*-11 = 121

Fill in the blanks in

(x+_)(x+_)

with -11 and -11 to get...

(x-11)(x-11)


Answer: (x-11)(x-11)


Hope this helps!!!

3 0
3 years ago
13 p question pleeeaaassseee guys need help. Will mark brainliest 5 points and thankyou pleass guys this is urgent.
Svet_ta [14]

A. yes

B. no

already did this hope this helps please mark brainliest

7 0
3 years ago
How much will you pay the cashier for a candy bar that originally costs 79 cents and is now marked 15% off? Sales tax is 5.5%
Assoli18 [71]
79 cents marked down 15% 
so
79 x (1 - 0.15) 
79 x 0.85 = 67 cents
plus <span>Sales tax is 5.5%

67 x (1.055) = 71 cents

answer
71 cents</span>
6 0
3 years ago
Which of the following is the standard deviation of the random variable x, the number that appears on a die, if the probability
Vlad [161]
I got C as the answer
3 0
3 years ago
Read 2 more answers
What is the solution to this system? 2x+3y=12 -4x+5y=-2
Elden [556K]

answer: (3,2)

step by step explanation: :)

7 0
3 years ago
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