3 years ago

Helpmepleaseeeeeeee 1.

Mathematics

2 answers:

Free_Kalibri [48]3 years ago

6 0

-72/9• -42/3 = -11 8/9

Vedmedyk [2.9K]3 years ago

4 0

1. <span><span>7 2/9</span>−<span>4 <span>2/3</span></span></span><span>=<span>2 <span>5/9</span></span></span><span>(Decimal: 2.555556)</span>

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Oliver earns $93 per week mowing lawns in his neighborhood. Which expression can be used to show how much money he earns in 6 we

ElenaW [278]

1 week = $93
6 weeks = $93 x 6
6 weeks = $558

6 0

3 years ago

Please answer correctly !!!!!! Will mark brainliest answer !!!!!!!!!!!!!!

AlekseyPX

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3 years ago

Which expression is equivalent to 36x2 − 100

slavikrds [6]

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2 years ago

Find the radius of the circle with equation x²+y²+8x+8y+28=0

galina1969 [7]

<h2>Hello!</h2>

The answer is:

Center: (-4,-4)

Radius: 2 units.

To solve the problem, using the given formula of a circle, we need to find its standard equation form which is equal to:

$(x-h)^{2}+(y-k)^{2}=r^{2}$

Where:

"h" and "k" are the coordinates of the center of the circle and "r" is its radius.

So, we need to complete the square for both variable "x" and "y".

The given equation is:

$x^{2}+y^{2}+8x+8y+28=0$

So, solving we have:

$x^{2}+y^{2}+8x+8y=-28$

$(x^2+8x+(\frac{8}{2})^{2})+(y^2+8y+(\frac{8}{2})^{2})=-28+((\frac{8}{2})^{2})++(\frac{8}{2})^{2})\\\\(x^2+8x+16 )+(y^2+8y+16)=-28+16+16\\\\(x^2+4)+(y^2+4)=4$

$(x^2-(-4))+(y^2-(-4))=4$

Now, we have that:

$h=-4\\k=-4\\r=\sqrt{4}=2$

So,

Center: (-4,-4)

Radius: 2 units.

Have a nice day!

Note: I have attached a picture for better understanding.

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3 years ago

In how many years will rupees 150 double itself at 4% S.I.?

nikitadnepr [17]

Answer:

Simple interest = PRT/100

300 = 150 x 4 x T/100

2 x 100/4 = T

Therefore T = 50 years

Hope this helps!

7 0

3 years ago