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3 years ago

Which of the following choices is equivalent to the expression below?

Mathematics

1 answer:

Alex3 years ago

8 0

It’s C because, anything with the power of 0 will always equal 1. Also, you cannot add these two together because they don’t have the same base. So it’s (4^2 + 1).

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3 1/5 divided by 1 1/7

Katarina [22]

2.8 is the answer for that question

8 0

3 years ago

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The diameter of a circle has length 12. The center is at*(-5, 2). Give the equation

labwork [276]

Answer:

Equation of the circle is : $x^{2} + 10x + y^{2} -4y -7 =0$

Step-by-step explanation:

Let us consider the image attached in the answer area.

The center O has the co-ordinates i.e. (-5,2) and the diameter given is 12 units.

We know that radius is half of diameter.

$\text{Radius = }\dfrac{\text{Diameter}}{2}$

$\text{Radius = }\dfrac{12}{2}\\\Rightarrow \text{Radius = 6units}$

The equation for circle given the center and radius, can be represented as:

$(x-a)^{2}+ (y-b)^{2} = r^{2}$

Where (a,b) is the co-ordinate of center and r is the radius.

Let us consider the following formula:

$(p+q)^2 = p^{2}+ q^{2} +2pq\\(p-q)^2 = p^{2}+ q^{2} -2pq$

$(x-(-5))^{2}+ (y-2)^{2} = 6^{2}\\\Rightarrow (x+5)^{2}+ (y-2)^{2} = 36\\\Rightarrow x^{2} + 25 + 10x +y^{2} + 4-4y=36\\\Rightarrow x^{2} + 10x +y^{2} -4y-7=0$

Hence, Equation of the circle is : $x^{2} + 10x + y^{2} -4y -7 =0$

4 0

2 years ago

12p+ 15 - 13 - 12p And show me how you got the answer

dezoksy [38]

Answer:

Step-by-step explanation:

According to me, you would just have to combine like terms and simplify them as much as possible.

12p + 15 - 13 - 12p

12p - 12p + 15 - 13

0 + 15 - 13

0 + 2

Hope this helps :D

5 0

3 years ago

At least 7 since 0 is a whole number the lowest n+7 can be is 0+7= 7 and there is seven numbers in between 0 and seven.

Nina [5.8K]

Where’s the question

5 0

2 years ago

3 a plus b equals 54, when b equals 9?

Anton [14]

Answer:

3a+b= 54

3a+9=54

3a=54-9

3a=45

a=45/3

a= 15

8 0

3 years ago

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