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3 years ago

Is my Answers Correct? Very easy Question!

Mathematics

2 answers:

Aliun [14]3 years ago

7 0

Answer:

Step-by-step explanation:

Correct

zloy xaker [14]3 years ago

7 0

Step-by-step explanation:

the 5th one on the right is standard form,

the second one is perfect square form.

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For the equation --4y = 8x, what is the constant of variation?

larisa86 [58]

Answer: 1) B is correct, constant of variation is -2.

Step-by-step explanation:

Direct variation states that a relationship between the two variables. we say y varies directly as x

i.e, or y =kx.................[1] ; where k is the constant of variation.

Given the equation:

Divide both sides by -4 we get;

Simplify:

.......[2]

On comparing equation [2] with [1] we get;

k = -2

6 0

3 years ago

✼ <img src="https://tex.z-dn.net/?f=Hello." id="TexFormula1" title="Hello." alt="Hello." align="absmiddle" class="latex-formula"

ale4655 [162]

1675/3890 you are dividing 1675 by 3890 so it equals 0.43059...=0.4 simplified to the first decimal

3 0

3 years ago

Read 2 more answers

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 $(1,1)$ .

7 0

3 years ago

Please help will give more then 5 points plus brainliest!

allsm [11]

Answer:

your answer would be A.

Step-by-step explanation:

your anwer would be A. beacuse you want to get to 180

and 116 and 64 = 180

6 0

3 years ago

I have to factor this : 7x2+35x-49 <br> im not sure what to do.

Anon25 [30]

7(x^2 +5x-7)
i think this is how it works

4 0

4 years ago