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3 years ago

Can someone please help me with this problem

Mathematics

1 answer:

zmey [24]3 years ago

5 0

Answer:

I think that the answer is 83 but im not sure. I tried to solve it and i got 83. I hope its right.

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What is 395.20 divided by 5 rounded

olchik [2.2K]

I think it is 395.20 / 5 = 79.04, rounded down to 79

3 0

3 years ago

Read 2 more answers

5(6.2+z) , z=3.8 help please :)

inna [77]

Answer:

the answer should be 50

Step-by-step explanation:

3 0

3 years ago

6/2 (1 + 2) ? What is the answer to this the answer choices are: 1, 6, 9, and 3

guapka [62]

Answer:

Step-by-step explanation:

6÷2(1+2)

(1+2)

6÷2×3

6÷2=

3×3

4 0

3 years ago

Could you please explain find an equation for i, -i, -4, 1 = x as its solution

Virty [35]

We can do this easily using 0s.

(x - i) (x + i) (x + 4) (x - 1) = 0

If you plug in any of the numbers, you'll get 0, making the equation true.

5 0

3 years ago

the equation of a circle in general form is x squared + y squared + 20x + 12 y + 15 equals 0what is the equation of the circle i

Marrrta [24]

Answer: $(x+10)^2+(y+6)^2=121$

Step-by-step explanation:

The equation of a circle in the general form is:

$ax^{2}+by^2+cx+dy+e=0$

The equaton of a circle in standard form is:

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

Where the center is at (h, k) and r is the radius

To write the equation of a circle from general form to standard form, you must complete the squaare, as you can see below:

1- Given the equation in general form:

$x^{2}+y^2+20x+12y+15=0$

2- Complete the square:

-Group the like terms and move the constant to the other side.

- Complete the square on the left side of the equation.

- Add the same value to the other side.

Then you obtain:

$(x^{2}+20x)+(y^2+12y)=-15\\(x^2+20x+(\frac{20}{2})^2)+(y^2+12y+(\frac{12}{2})^2)=-15+(\frac{20}{2})^2+(\frac{12}{2})^2\\\\(x+10)^2+(y+6)^2=-15+100+36\\(x+10)^2+(y+6)^2=121$

4 0

3 years ago

Can someone please help me with this problem​

Can someone please help me with this problem