3 years ago

Solve the formula for the specified variable

Mathematics

1 answer:

ale4655 [162]3 years ago

5 0

Answer:

the answer is b = 2A - B / h

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A² + b² = 7b and b² + (2b-a)² = 7² find (a - b)².

Mamont248 [21]

Answer:

(a - b)^2 = 49 - 4b^2 +2ab

Step-by-step explanation:

Given: a^2 + b^2 = 7b (assuming A is really “a”)

b^2 + (2b - a)^2 = 7^2

Find; (a - b)^2

Plan: Use Algebraic Manipulation

Start with b^2 + (2b - a)^2 = 7^2 =>

b^2 + 4b^2 - 4ab + a^2 = 49 by expanding the binomial.

a^2 + b^2 + 4b^2 - 4ab = 49 rearranging terms

a^2 + b^2 -2ab - 2ab + 4b^2 = 49 =>

a^2 - 2ab + b^2 = 49 - 4b^2 +2ab rearranging and subtracting 4b^2 and adding 2ab to both sides of the equation and by factoring a^2 - 2ab + b^2

(a - b)^2 = 49 - 4b^2 +2ab

Double Check: recalculated ✅ ✅

(a - b)^2 = 49 - 4b^2 +2ab

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3 years ago

Maddie plots point A (1,3). She then translates

Tpy6a [65]

Answer:

Step-by-step explanation: just do it

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2 years ago

Help me guys :)))))6

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Answer:

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Step-by-step explanation:

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3 years ago

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What is the equation of the line described below written in slope-intercept form the line passing through the point (-1,5) and p

gregori [183]

The correct answer is y=-x+4

Further explanation:

Given equation of line is:

$x+y = 10$

Comparing it with the standard point-slope form

$y = mx+b$

We get

y = -x+10

m = -1

As the new line is parallel to given line it will also have m=-1 as slope of two parallel lines is equal

For finding b, we will put the point and value of m in standard form

$y = mx+b\\5 = (-1)(-1) + b\\5 = 1+b\\5-1 = b\\b=4$

Hence the equation will be:

$y = (-1)x+4\\y = -x+4$

The correct answer is y=-x+4

Keywords: Slope, Equation of line, Point-slope form

Learn more about Point-slope form of equation of line at:

#LearnwithBrainly

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3 years ago

Bobby runs a lemonade stand to raise money for Baker Children's Hospital. Last weekend, he made 8 quarts of lemonade to sell. Sa

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Answer:

2 quarts left

Step-by-step explanation:

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