2 years ago

Please help ill give brainliest, and explain the answer too please

Mathematics

1 answer:

Basile [38]2 years ago

3 0

Answer:

x^2+2

Step-by-step explanation:

since (x^2+2x+1) is negative from the subtraction symbol in front, the entire thing turns negative. The equation turns into 2x^2+2x+3-x^2-2x-1=...

if you solve this equation you will get x^2+2 by adding the like terms together

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The quadratic regression equation that models these data is y = –0.34x2 + 4.43x + 3.46. Using the quadratic regression equation,

arsen [322]

Answer:

13.76

Step-by-step explanation:

We want year 10; this means we substitute 10 in place of x:

y=-0.34(10²)+4.43(10)+3.46

y = -0.34(100)+4.43(10)+3.46

y = -34+44.3+3.46 = 13.76

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3 years ago

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Find the equation of the line passing through the given points. Use function notation to write the equation, (-2,8) and (-6,20)

sertanlavr [38]

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2 years ago

At a sale this week, a desk is being sold for $336. This is a 36% discount from the original price.

8090 [49]

Answer:

$525

Step-by-step explanation:

We can find the original price by using the formula x - 0.36x = 336, where x is the original price, 0.36 is the discount percentage (converted to decimal form), and 336 is the total amount paid after the discount is applied:

$x-0.36x=336\\0.64x=336\\x=525$

To check and further understand why the formula works, we can simply apply the discount to the original price and subtract the number from the original price:

525 * 0.36 = 189

525 - 189 = 336

Modeling the first formula gives us:

525 - (0.36 * 525) = 336

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1 year ago

HELPPPPP please :( thanks

Vadim26 [7]

You’re answer is 62 degrees
Explanation is in the photo

3 0

2 years ago

What is the value of x ?!

puteri [66]

Answer:

Step-by-step explanation:

2x - 1 = 7

2x = 8

x = 4

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2 years ago