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3 years ago

Solve x^2-x-42=0 for quadratic equation

Mathematics

2 answers:

harkovskaia [24]3 years ago

6 0

Answer:x

x=7,-6

Step-by-step explanation:

Solve the equation for x by finding a , b , and c of the quadratic then applying the quadratic formula.

ps. can you mark me brainliest if i got it right??? plz? thanks

11Alexandr11 [23.1K]3 years ago

6 0

Answer: x = 7 , -6

Step-by-step explanation: Solve the equation for x by finding a, b and c of the quadric then applying the quadric formula.

Hope this helps you out! ☺

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ziro4ka [17]

Step-by-step explanation:

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2 years ago

ABCD is a parallelogram. AB>AD. Prove: m∠ADB>m∠BDC. Show your work (statement reason maybe?)

Gwar [14]

In the parallelogram ABCD, join BD.

Consider the triangle Δ ABD.

It is given that AB > AD.

Since, in a triangle, angle opposite to longer side is larger, we have,

∠ ADB > ∠ ABD. --- (1)

Also, AB || DC and BD is a transversal.

Therefore,

∠ ABD = ∠ BDC

Substitute in (1), we get,

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7 0

3 years ago

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If x = -12, y = -3; find xy?

wolverine [178]

Given that :- 

x = -12
y = -3

To Find :- 

Value of xy

Solution :- 

☆ When a negative digit is multiplied with negative digit then the result comes as positive digit .

→ x × y = (-12)(-3)

→ x.y = 36

So the answer is 36.

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3 years ago

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Suppose that profit for a particular product is calculated using the linear equation: Profit = 20S + 3D. Which of the following

uranmaximum [27]

Answer:

b. S = 405, D = 0

Step-by-step explanation:

We have been given that profit for a particular product is calculated using the linear equation: $\text{Profit}=20S+3D$ . We are asked to choose the combinations of S and D that would yield a maximum profit.

To solve our given problem, we will substitute given values of S and D in the profit function one by one.

a. S = 0, D = 0

$\text{Profit}=20S+3D$

$\text{Profit}=20(0)+3(0)$

$\text{Profit}=0$

b. S = 405, D = 0

$\text{Profit}=20S+3D$

$\text{Profit}=20(405)+3(0)$

$\text{Profit}=8100+0$

$\text{Profit}=8100$

c. S = 0, D = 299

$\text{Profit}=20S+3D$

$\text{Profit}=20(0)+3(299)$

$\text{Profit}=0+897$

$\text{Profit}=897$

d. S = 182, D = 145

$\text{Profit}=20S+3D$

$\text{Profit}=20(182)+3(145)$

$\text{Profit}=3640+435$

$\text{Profit}=4075$

Since the combination S = 405, D = 0 gives the maximum profit ($8100), therefore, option 'b' is the correct choice.

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3 years ago

The parabola y=x^2 is reflected across the x-axis and then scaled vertically by a factor of 4/3 What is the equation of the new

Strike441 [17]

Answer: y = $-\frac{4}{3}x^{2}$

Step-by-step explanation:

y = ax² ; where a represents the vertical stretch

a reflection across the x-axis is represented by making the a-value negative.

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2 years ago

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Solve x^2-x-42=0 for quadratic equation​

Solve x^2-x-42=0 for quadratic equation