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Furkat [3]
3 years ago
9

Is there a way to solve (2x - 5)^2 using the formula a^2 - b^2 = (a-b) (a+b)?​

Mathematics
1 answer:
Nuetrik [128]3 years ago
5 0

Answer:

yes

soln

(2x)² - (5)²

= (2x - 5)(2x + 5)

4x² + 10x - 10x - 25

4x² - 25

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eduard

Answer:

x=3

Step-by-step explanation:

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2 years ago
Can you help? photo is included<br><br><br><br><br><br><br>​
laiz [17]

Answer:

Step-by-step explanation:

f(x)=-4x+2

g(x)=x²+1

(gof)(x)=g(f(x))=g(-4x+2)=(-4x+2)²+2=16x²-16x+4+2=16x²-16x+6

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3 0
3 years ago
An air traffic controller spots two airplanes at the same altitude converging to a point as they fly at right angles to each oth
dedylja [7]

Answer:

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Step-by-step explanation:

Given:

two planes at same altitude heading in a collision course.

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Plane B at 300 miles from collision point at 150 mph.

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t = 400/200 = 300/150 = 2 hours

Distance ya of plane A from collision point as a function of time in hours

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b. time available

Time until D(t) = 0

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3 0
3 years ago
What's longer? 70 inches or 6 feet
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6 feet is longer because 6 feet = 72 inchs

and because 70 feet = 5.83333
 
6 0
3 years ago
Read 2 more answers
Please help!!!! ASAP!!!
Nookie1986 [14]

2/4 = 3/6 is true.

First, simplify the fractions:

2/4 = 1/2

3/6 = 1/2

We see that 1/2 = 1/2, so 2/4 DOES equal 3/6.

6 0
3 years ago
Read 2 more answers
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