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2 years ago

If (10,3) and (6,31) are two anchor points on a trend like, then find the equation of the line

Mathematics

1 answer:

Misha Larkins [42]2 years ago

8 0

Answer:

let's find the gradient first. (m)

Step-by-step explanation:

(10,3) (6,31)

y²-y¹/x²-x¹

31-3/6-3

28/3

(m) =28/3

y-y¹=m(x-x¹)

let's take y¹=3, x¹=10 and m= 28/3

y-3=28/3(x -10)

y-3=(28/3)x -128/3

taking LCM=3

3y-9=28x-128

3y=28x -128+9

3y=28x-119

Soo your equation is:

3y=28x-119

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Please help me solve this.

Vlada [557]

Answer:

<h2>I think that is a FORMULA.</h2>

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Hope this helps.

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2 years ago

Can someone explain me this one

JulsSmile [24]

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3 years ago

Read 2 more answers

Please help me with this question!! I also need the steps

e-lub [12.9K]

Hi there!

$\large\boxed{x = \frac{\pi}{3} \text{ and } \pi}$

We are given:

cos(7x)cos(4x) = -1 - sin(7x)sin(4x)

Begin by moving all terms with variables to one side:

cos(7x)cos(4x) + sin(7x)sin(4x) = -1

The corresponding trig identity is cos(A - B). Thus:

cos(7x - 4x) = cos(7x)cos(4x) + sin(7x)sin(4x) = -1

cos(3x) = -1

cos = -1 at π, so:

3x = π

x = π/3

We can also find another solution. Let 3π = -1:

3x = 3π

x = π

Thus, solutions on [0, 2π) are π/3 and π.

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3 years ago

Mel wants to buy a pair of shoes that costs $120. She has saved $45 and has a job that pays her $10 per hour. The number of hour

maksim [4K]

<h2>Answer: 8</h2>

Step-by-step explanation:

$10x+45 > 120\\10x+45-45 > 120-45\\10x > 75\\\frac{10x}{10} > \frac{75}{10} \\x > 7.5$

Therefore, Mel has to work at least 7.5 hours or 8 total hours.

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1 year ago

A class of 40 students elected a class president. There were 12 votes for Candidate A, and 18 votes for Candidate B. The rest of

mote1985 [20]

40 students
12-A
18-B
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28-18=10
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25% did not vote
10 is one fourth of 40
fourth of 100% is 25%

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2 years ago