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3 years ago

Solve for x y=9x-2x please help im beggiing

Mathematics

1 answer:

Alenkasestr [34]3 years ago

5 0

Answer:

$y = 9x - 2x \\ y = (9 -2)x \\ y = 7x \\ \boxed{ x = \frac{y}{7} }$

<u>x = y/7</u> is the right answer.

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Alex wants to fence in an area for a dog park. He has plotted three sides of the fenced area at the points E (1, 5), F (3, 5), a

hram777 [196]

Answer:

$(1,1)$

Step-by-step explanation:

Given: E, F, G, H denote the three coordinates of the area fenced

To find: coordinates of point H

Solution:

According to distance formula,

length of side joining points $(x_1,y_1)\,,\,(x_2,y_2)$ is equal to $\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

So,

$EF=\sqrt{(3-1)^2+(5-5)^2}=2\,\,units\\FG=\sqrt{(6-3)^2+(1-5)^2}=\sqrt{9+16}=5\,\,units\\GH=\sqrt{(x-6)^2+(y-1)^2}\\EH=\sqrt{(x-1)^2+(y-5)^2}$

Perimeter of a figure is the length of its outline.

$EF+FG+GH+EH=16\\2+5+\sqrt{(x-6)^2+(y-1)^2}+\sqrt{(x-1)^2+(y-5)^2}=16\\\sqrt{(x-6)^2+(y-1)^2}+\sqrt{(x-1)^2+(y-5)^2}=16-2-5\\\sqrt{(x-6)^2+(y-1)^2}+\sqrt{(x-1)^2+(y-5)^2}=9$

Put $(x,y)=(1,1)$

$\sqrt{(1-6)^2+(1-1)^2}+\sqrt{(1-1)^2+(1-5)^2}=9\\\sqrt{25}+\sqrt{16}=9\\5+4=9\\9=9$

This is true.

So, the point $(1,1)$ satisfies the equation $\sqrt{(x-6)^2+(y-1)^2}+\sqrt{(x-1)^2+(y-5)^2}=9$

So, point H is $(1,1)$ .

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3 years ago

What is the vertex of a circle in the equation of a circle?

anastassius [24]

<span> Move to the right side of the </span>equation<span> by adding to both sides.</span>

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4 years ago

A pair of tomato plants sells for $20.65. the cost is $7.32 each. what is the markup rate, based on cost to the nearest tenth of

Serggg [28]

Answer: 64.6%

Explanation:

$\textnormal {Markup Rate = } \cfrac{20.65 - 7.32}{20.65} \times 100 = 64.6\%$

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4 years ago

Read 2 more answers

The roof of one building is 400 feet below the roof of another building. A person standing on the lower roof sees another person

m_a_m_a [10]

The distance between the two buildings is 844.23 feet apart, we go this answer by simply applying the SOH CAH TOA method

<h3>Trigonometry</h3>

Given Data

Height of Building A (Opp) = 400 feet

Angle of Elevation θ = 35°

Distance between the buildings Adj = ??

Applying the SOH CAH TOA Approach we have

Tan θ = Opp/Adj

Substituting our given data we have

Tan 35 = 400/x

0.4738 = 400/x

make x subject of the formula we have

x = 400/0.4738

x = 844.23 feet

learn more about trigonometry here:

brainly.com/question/24349828

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3 years ago

5(x-6) = 2x - 18 + 2x

stepan [7]

Answer: x = 4/3

Step-by-step explanation:

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3 years ago