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3 years ago

How to do exponents a quicker way!! Please help my brother!

Mathematics

1 answer:

jekas [21]3 years ago

3 0

You need to remember your exponent rules. I don’t know any easier way to do it. These are all the ones I can remember right now

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If the center of a circle is (-5, -8) and contains the point (16, 68) what is the equation ?

vlabodo [156]

Answer:

$(x+5)^2+(y+8)^2=6217$

Step-by-step explanation:

Hi there!

Equation of a circle: $(x-h)^2+(y-k)^2=r^2$ where the circle is centered at (h,k) and r is the radius

<u>1) Plug the center of the circle into the equation</u>

Center: (-5,-8)

$(x-h)^2+(y-k)^2=r^2\\(x-(-5))^2+(y-(-8))^2=r^2\\(x+5)^2+(y+8)^2=r^2$

<u>2) Determine r²</u>

Plug in the given point (16,68)

$(x+5)^2+(y+8)^2=r^2\\(16+5)^2+(68+8)^2=r^2\\(21)^2+(76)^2=r^2\\441+5776=r^2\\6217=r^2$

Therefore, r² is equal to 6217. Plug this back into $(x+5)^2+(y+8)^2=r^2$ :

$(x+5)^2+(y+8)^2=6217$

I hope this helps!

5 0

3 years ago

4x+27=10x-33 how to answer it

Nikolay [14]

-6x +27 = -33

-6x = -60

x = 10

4 0

3 years ago

Read 2 more answers

Please help ASAP ! Right answer only.

marissa [1.9K]

Answer:

x + 4y

Step-by-step explanation:

(x∧2+8xy+16y∧2)∧(1/3) · (x+4y)∧(1/3) = ((x+4y)∧2 · (x+4y))∧(1/3) = ((x+4y)∧3)∧(1/3)=

= (x+4y)∧(3/3) = x+4y

Good luck!!!

6 0

3 years ago

Choose the equation below that matches the word sentence: "3 increased

tatuchka [14]

Step-by-step explanation:

32 9655 9655 + 965 + 965 + 965 + 982

7 0

3 years ago

Martin and Linda live 855 miles apart. At the same time, they start driving toward each other on the same road. Linda’s constant

Alinara [238K]

If one is at a speed of 35 mph and the other 60, sum the speeds to work with just one number:

35 + 60 = 95mph

The formula for time is:

Time = Distance / Speed
Time = 855 / 95
Time = 9h (D.)

Hope it helped,

Happy homework/ study/ exam!

6 0

3 years ago

Read 2 more answers