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AveGali [126]
3 years ago
9

When can we use the method of extracting the square root in solving the roots of quadratic equations?​

Mathematics
1 answer:
viva [34]3 years ago
7 0

Answer:

This is the “best” method whenever the quadratic equation only contains x2 terms.

The general approach is to collect all x2 terms on one side of the equation while keeping the constants to the opposite side.

step by step: but in order to solve a quadratic using the square root principle the problem must be in the correct form. To solve a quadratic using the square root principle the quadratic must be in vertex form, a(x – h)2 + k.

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Describe how to solve the equation 1,150= 100x h for h
Komok [63]

Step-by-step explanation:

100xh=1,150\qquad\text{divide both sides by}\ 100x\neq0\\\\\dfrac{100xh}{100x}=\dfrac{1,150}{100x}\\\\\boxed{h=\dfrac{115}{x}}

6 0
4 years ago
Jesse sold cupcakes and cookies yesterday. Each cupcake sold for $1.50 and each cookie sold for $0.25. At the end of the day, Je
ale4655 [162]

Answer: 19 cupcakes and 37 cookies were sold.

Step-by-step explanation:

Let x represent the number of cupcakes that Jesse sold yesterday.

Let y represent the number of cookies that Jesse sold yesterday.

If he sold 56 cupcakes and cookies combined, it means that

x + y = 56

Each cupcake sold for $1.50 and each cookie sold for $0.25. At the end of the day, Jesse had sold $37.75 worth of cookies and cupcakes. This means that

1.5x + 0.25y = 37.75 - - - - - - - - - - -1

Substituting x = 56 - y into equation 1, it becomes

1.5(56 - y) + 0.25y = 37.75

84 - 1.5y + 0.25y = 37.75

- 1.5y + 0.25y = 37.75 - 84

- 1.25y = - 46.25

y = - 46.25/ - 1.25

y = 37

x = 56 - y = 56 - 37

x = 19

7 0
3 years ago
What is the value of x?<br><br> Enter your answer in the box.<br><br> x =
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Answer:

x = 85°

Step-by-step explanation:

all interior angles of a triangle add up to 180°

x = 180° - 35° - 60° = 85°

3 0
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What is the value of x in this triangle
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A

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if x is the least it only makes common sense

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How would you read the decimal number 0.241?​
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3 years ago
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