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2 years ago

Noah said, “If a is a rational number, -a will always be a negative number.” Do you agree with Noah? Explain your reasoning.

Mathematics

2 answers:

Stella [2.4K]2 years ago

8 0

Answer:
Yes, Noah is right

crimeas [40]2 years ago

6 0

Answer: Yes, I do agree with Noah

Step-by-step explanation: Rational numbers can be positive, negative or zero. When we write a negative rational number, we put the negative sign either out in front of the fraction or with the numerator. That's the standard mathematical notation. For example, we would write -5/7 as opposed to 5/-7.

Also, any number that can be rewritten as a simple fraction is a rational number. This means that natural numbers, whole numbers and integers, like 5, are all part of the set of rational numbers as well because they can be written as fractions, as are mixed numbers like 1 ½.

You're welcome. Pls give me brainiest

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Which number is acting as a coefficient in this problem. 360+22X -448

fomenos

Answer:

22x is the coefficient

Step-by-step explanation:

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3 years ago

Urgent! Find the area created by the overlapping circles given the following information.

Stels [109]

Answer:

209.55in²

Step-by-step explanation:

Find area of sector CADE

Radius =22 in

Angle=90°

Formula to apply is ;

Ф/360 × π × r² where

Ф=angle of sector, π=3.142 and r =radius of circle

$A=\frac{90}{360} *3.142*22*22=380.182in^2$

Find area of triangle CAD where base length is 22 inches and height is 22 inches

Area of triangle formula is;

1/2×b×h where b is base and h is height

$A=\frac{1}{2} *22*22=242in^2$

Find area remaining

380.182-242=138.182in²

Find the area of sector CBDF

Radius=28in

Angle=60°

Formula to apply is ;

Ф/360 × π × r² where

Ф=angle of sector, π=3.142 and r =radius of circle

$A=\frac{60}{360} *3.142*28*28=410.55in^2$

Area of triangle BDC

The formula to apply is

1/2×a×a×sinФ where a=28 inches and Ф=60°

$\frac{1}{2} *28*28*sin60=339.48in^2$

Remaining area

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Area created by overlapping circles

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3 years ago

12.54 + (-24.673) What’s the answer if you compute?

Zinaida [17]

Answer:

-12.133 would be your answer

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3 years ago

Solve the following equation for the value for x. 7(0.3x - 0.9) = 6x-0.6 (18 +4x)

tangare [24]

The answer to the question is: x=3

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3 years ago

What would be the answer to this question. PLEASE EXPLAIN.

Rzqust [24]

You can describe the domain by every possible x value in the function, since that function has a vertical intersection line which means the x value will never pass it on the negative side, the domain would be from -2 to all the postive numbers, X > -2 or (-2,∞).

For the range, simply it's all the possible y values. In that function it's impossible to go under 0 or negative value. That means the range would be Y>0 or (0,∞).

If you want to know if it's a function or not you could try the vertical line test, select any x value and draw straight line on it, if the line crosses 2 y points in the same x value it wont be a function, In your case each x value has it's own Y value.

So the answer is Domain x>-2; Range y>0; Yes, it is a function

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3 years ago