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lapo4ka [179]
3 years ago
8

Simplify fully (2x-1)(2x+1)​

Mathematics
1 answer:
aleksandrvk [35]3 years ago
7 0
4x^2 - 1 should be right
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What is the maximum amount of money that an employee under 50 years old can put into a 403(b) or 401(k) in 2018?
Vladimir79 [104]

Answer:

6,000

Step-by-step explanation:

This is a statistic according to the balance

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Mai is visiting Paris to see the Eiffel Tower. She is 80 feet away
Jlenok [28]

Answer: height of the tower is 1064 feet

Step-by-step explanation:

We want to determine the height of the tower.

Assuming her line of sight of the top of the tower is a straight line, then a right angle triangle is formed. The height, h of the tower represents the opposite side of the triangle. Her distance from the foot of the tower represents the adjacent side of the triangle.

To determine h, we would apply the tangent trigonometric ratio which is expressed as

Tan θ = opposite side/adjacent side

Therefore,

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3 years ago
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6 0
3 years ago
Help me solve the problem! Please help
Sav [38]

Answer:

m+n=140

Step-by-step explanation:

So the angles in a triangle always add up to 180. We already know that the first angle in the triangle is 40 degrees because it's shown in the angle below the triangle. So we have 140 degrees left since 40 is taken up. That eans m+n=140

6 0
3 years ago
You can buy 5 pounds of grapes for $9.95. What is the cost c if you buy 4 pounds of grapes?
Vinvika [58]

Answer:

$7.96

Step-by-step explanation:

The equation 9.95/5=x would give you the price of one pound of grapes.

So, now that you have x, you would find out how much it costs if you bought 4 pounds.

4*x=7.96

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3 years ago
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