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Rus_ich [418]
3 years ago
10

Find (4x2 - 2x + 1) + (2x + 8)

Mathematics
1 answer:
iVinArrow [24]3 years ago
6 0

Answer: 4^2 + 9

Step-by-step explanation:

Simplify

4x^2 - 2x + 1 + 2x + 8

Collect like terms

4^2 + (-2x+2x) + (1+8)

Simplify

4x^2 + 9

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Yah i need twenty charecters but did not know what to write
lisov135 [29]

Answer:

The answer is 0.04 or 1/25

Step-by-step explanation:

<h2>0.04 < 1/3 (.33333333...)</h2><h3>7/8 > 1/3</h3><h3>1 1/3 > 1/3</h3><h3>6/10 (60%) > 1/3</h3>
7 0
4 years ago
Which expression is a factor of 9r^2-4r+1
faltersainse [42]

Answer:

There are no real factors for this.

Step-by-step explanation:

We could answer this either by checking each listed expression to see whether it is a factor of 9r^2-4r+1, or

We could take the coefficients of 9r^2-4r+1, determine the quantity b²-4ac (called the 'discriminant') and draw a conclusion based upon whether the discriminant is -, + or 0.

Let's use the 2nd approach.

Here, a = 9, b = -4 and c = 1.

Then the discriminant is b²2 - 4ac, or (-4)² - 4(9)(1), or 16 - 36.

Since 16 - 36 is negative, we conclude that this 9r^2 - 4r + 1 has NO REAL FACTORS.

6 0
3 years ago
What is 8.05 × 10-5 in standard notation?
Makovka662 [10]

Answer:0.0000805

Step-by-step explanation:

Edgenuity says it’s right

8 0
3 years ago
Scarlett and Alyssa work at a dry cleaners ironing shirts. Scarlett can iron 15 shirts per hour, and Alyssa can iron 35 shirts p
hodyreva [135]

Answer:

25x + 35(2x) = 380

25x + 70x = 380

95x = 380 so

x = 4

then i think that mean it might be 8 then im not completly sure

6 0
3 years ago
Are the events independent or dependent? why?
Tresset [83]

Answer:

Your answer is A.

Step-by-step explanation:

Don't need one.

5 0
3 years ago
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