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2 years ago

What is the coefficient of x in expansion of (2x-4)^2 ?

Mathematics

1 answer:

Sunny_sXe [5.5K]2 years ago

8 0

Answer:

Step-by-step explanation:

the one which is near to x

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Rewrite 2+(1/b-2) = (3b/b+2) as a proportion. Which of these proportions is equivalent to the original equation?

lorasvet [3.4K]

Answer: c for the first part

1,6 for the second

nether for the third

Step-by-step explanation:

all on edg

7 0

2 years ago

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A bakery sells pastries in boxes of 7 each. If the bakery has 27 pastries, how many boxes can be filled?

skad [1K]

Answer:

3 with a few left over so 4

Step-by-step explanation:

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2 years ago

point is B is on AC, what us the length of AB if AC=22 and BC=13? Please help me!, I'm falling in math class!!

den301095 [7]

Answer:

Step-by-step explanation:

There are two answers to this.

The order is ACB. That means that B is beyond C.

In which case AB = AC + BC

AB = 22 + 13

AB = 35

The order is ABC (which means that B is between A and C.

AB = AC - BC

AB = 22 - 13

AB = 9

Please don't ask me what the answer is. The question does not make it clear enough to give you one answer. I do suggest you draw a diagram to show both possibilities. Your teacher will likely applaud you for poking holes in the question.

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2 years ago

Tilda is growing herbs from seeds. The heights of the herbs after one week are shown. Which plant is the tallest at the end of t

lukranit [14]

Answer:

Oregano

Step-by-step explanation:

Basil = 3.4

Parsley = 3.5

Dill = 3.15

oregano = 3.6666666

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2 years ago

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Harry is trying to solve the equation 0 = 2x2 − x − 6 using the quadratic formula. He has made an error in one of the steps belo

bija089 [108]

<h3><u>Given</u> - </h3>

➙ a quadratic equation in which Harry lagged due to an error made by him, 2x² - x - 6= 0

<h3><u>To solve</u> - </h3>

➙ the given quadratic equation.

<h3><u>Concept applied</u> - </h3>

➙ We will apply the quadratic formula as given in the question. So, let's study about quadratic equation first because we are supposed to apply the formula in equation.

What is quadratic equation?

➙ A quadratic equation in the variable x is an equation of the form ax² + bx + c = 0, where a, b, c are real numbers, a ≠ 0.

Now, what is quadratic formula?

➙The roots of a quadratic equation ax + bx + c = 0 are given by $\sf{\:\frac{-b \pm\: \sqrt {b ^ 2 - 4ac}}{2a}}$ provided b - 4ac ≥ 0.

<h3><u>Solution</u> - </h3>

here as per the given quadratic equation,

a = 2, b = -1 and c = -6

putting in the formula,

$\implies\sf{x=\frac{-(-1) \pm\: \sqrt {(-1)^2 - 4(2)(-6)}}{2(2)}}$

$\implies\sf{x=\frac{1 \pm\: \sqrt {1+48}}{4}}$

$\implies\sf{x=\frac{1 \pm\: \sqrt {49}}{4}}$

$\implies\sf{x=\frac{1 \pm\: 7}{4}}$

Solving one by one,

$\implies\sf{x=\frac{1 + \: 7}{4}}$

$\implies\sf{x=\frac{8}{4}}$

$\implies{\boxed{\bf{x=2}}}$

________________

$\implies\sf{x=\frac{1 - \: 7}{4}}$

$\implies\sf{x=\frac{-6}{4}}$

$\implies{\boxed{\bf{x=\frac{-3}{2}}}}$

________________________________

<em><u>Note</u> - Hey dear user!! You haven't provided the solution which was solved by Harry (A.T.Q). Please go through the solution as it will help you to find the error done by Harry.</em>

Hope it helps!! (:

4 0

2 years ago