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3 years ago

49w = −8 what is the value of w

Mathematics

2 answers:

Anna71 [15]3 years ago

6 0

Answer:

w= -0.163265306122449

Step-by-step explanation:

49w = -8

divide both sides by 49

w= -8/49 = -0.163265306122449

check answer by multiplying -0.163265306122449 by 49

49 * -0.163265306122449 = -8

Oksi-84 [34.3K]3 years ago

5 0

Answer:

w = -8/49

Step-by-step explanation:

49w = −8

Divide each side by 49

49w/49 = -8/49

w = -8/49

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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,

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

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

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

________________

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

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

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

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<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

Choose the equation below that represents the line passing though the point(-5, 1) with a slope of 2/3

neonofarm [45]

Y=2/3x+7/3 is an equation that passes through the point (-5,1) with a slope of 2/3

3 0

3 years ago

Gre4nikov [31]

Answer:

It is 1, or A: adding the two middle numbers

Step-by-step explanation:

When you think of it, here's an example:

Add 23 and 55:

23+55=78

We've got this now:

Now, all you've gotta do is find the mediam.

Hope this helped, and please mark as Brainliest <3

4 0

3 years ago

3x – 1 > 4x + 7<br> What’s the answer

aliya0001 [1]

Answer:

$x$

Step-by-step explanation:

So we have the inequality:

$3x-1>4x+7$

Add 1 to both sides. The left side cancels:

$3x>4x+8$

Subtract 4x from both sides. The right side cancels:

$-x>8$

Divide both sides by -1. Since we're dividing by a negative, we flip the sign:

$x$

And we're done!

Our solution is all numbers less than -8.

4 0

3 years ago

Read 2 more answers

Help me please find the value of x then find the measure of each unknown angle

neonofarm [45]

The value of x is 103.

The value of x is 59.

The value of x is 134.

The value of x is 12

The value of x is 50

The value of x is 135

<h3>What is the value of x?</h3>

The sum of angles on a straight line add up to 180 degrees.

180 - 77 = 103

180 - 121 = 59

180 - 46 = 134

12 x + 36 = 180

12x = 180 - 36

12x = 144

x = 12

24 + 3x + 6 = 180

3x = 180 - 24 - 6

3x = 150

x - 50

$\frac{x}{3}$ + 99 + 36 = 180

$\frac{x}{3}$ = 180 - 36 - 99

$\frac{x}{3}$ = 45

x = 45 x 3

x = 135

To learn more about supplement angles, please check: brainly.com/question/2766460

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4 0

2 years ago