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3 years ago

Solve the equation. 9-(-2)

Mathematics

2 answers:

Ugo [173]3 years ago

8 0

Answer:

Step-by-step explanation:

Two negatives cancel each other out and makes the equation 9+2. 9+2 equals 11.

Helen [10]3 years ago

4 0

Answer:

Step-by-step explanation:

when you have 2 negative symbols in an equation (subtraction symbol & the negative symbol with the 2), they both turn into positives.

It becomes 9+2=11

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If summer is in 277 days, 11 hours, 25 minutes, and 30 seconds. how long would it be in milliseconds?

Yakvenalex [24]

Answer:

24032430000

Step-by-step explanation:

in 277 days there are 23932800000 in 11 hours there are 39600000 and in 30 seconds there are 30000 so 23932800000+39600000+30000=24032430000

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2 years ago

Determine the equation of the circle graphed below. ( please help me )

Brums [2.3K]

Answer:

$Equation : \\(x+3)^2 + ( y -2)^2 = 36$

Step-by-step explanation:

For standard form the circle's equation we need the centre of the circle and the radius.

Step 1: Find the centre

If the centre is not given find the end points of the diameter

and then find the mid point.

Let the end points of the diameter be : ( - 3 , 8 ) and ( -3 , -4 )

The mid-point of the diameter is :

$Mid-point = (\frac{-3 + - 3}{2}, \frac{-4+8}{2}) = (-3, 2)$

Therefore, centre of the circle = ( -3 , 2 )

Step 2 : Find radius

$Radius = \frac{Diameter }{2}$

Diameter is the distance between the end points ( -3 , 8) and ( -3 , -4 )

That is ,

$Diameter = \sqrt{(-3-(-3))^2 + ( -4 -8)^2}\\$

$= \sqrt{(-3 + 3)^2 + (-12)^2}\\\\=\sqrt{0 + 144}\\\\=12$

Therefore ,

$Radius = \frac{12}{2} = 6$

Step 3 : Equation of the circle

Standard equation of the circle with centre ( h ,k )

and radius ,r is :

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

Therefore, the equation of the circle with centre ( -3, 2)

and radius = 6 is :

$(x - (-3))^2 + (y - 2)^2 = 6^2\\\\(x + 3)^2 + (y - 2)^2 = 36$

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3 years ago

What are the are and perimeter of the triangle?

fenix001 [56]

Answer:

First option is correct answer.

Step-by-step explanation:

Area = 4x - 10

Perimeter = x + 8

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3 years ago

If two pyramids are similar and the ratio between the lengths of their edges is

SVEN [57.7K]

Answer:

D. 27:1331

Step-by-step explanation:

The volume ratio for the two solids is the side length ratio raised to the third power.

3 to the 3rd power = 27

11 to the 3rd power = 1331

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3 years ago

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Ket [755]

Answer:

Bvcvbcc

Step-by-step explanation:

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3 years ago