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marshall27 [118]
3 years ago
7

Which statements are true about the rules of multiplication for signed numbers? Check all that apply.

Mathematics
2 answers:
weqwewe [10]3 years ago
7 0

Answer:

here I think this is the same question. Hop this helps!

galina1969 [7]3 years ago
6 0

The product of two negative integers is positive. (-a) *(-b) = ab  True

The product of two integers with different signs is positive. (-a) (b) = -ab  False

If two numbers are the same sign, then the product is positive.

a*b = ab   -a * -b = ab   True

The product of a positive and a negative is negative.

-a * b =- ab    a * -b =- ab      True

If the signs of two integers are different, then the product is positive.

-a * b =- ab    a * -b =- ab      False


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I need help with number 3
Lynna [10]
The hexagon divides the circle into 6 parts. That means the angle projecting each side is: 360°÷ 6 = 60°

The area of a circle is: πr²
78.54 in² divided by pi is 25 making the radius = 5

I would then use SOH CAH TOA to solve for the side.. knowing the hypotenuse is the radius and the angle to split it into a right triangle is 30°

Sin(30) = s/5
5*Sin(30) = s

12*s = perimeter hexagon
(remember s is half the hexagon side)

12*5*Sin(30) = perimeter hexagon
30 inches  = perimeter

6 0
4 years ago
What is the fraction form of 4.372 repeated? <br><br> Plz help quick!
N76 [4]

Answer:

4372/1000

Step-by-step explanation:

3 0
4 years ago
PLEASE HELP ASAP!!! I NEED CORRECT ANSWERS ONLY PLEASE!!!
Debora [2.8K]

Yo sup??

you can solve this quesion by having the knowledge of trigonometric ratios

let angle B be x, then

tanx=7/3

x=66.8

Hope this helps

4 0
3 years ago
Is √4 rational or irrational?
bulgar [2K]

Rational number since a rational number is Any integer

7 0
3 years ago
The price of tiling a room varies directly as the size of the room. Sam is laying tile in his kitchen. If the tiling costs $4,22
stiv31 [10]

Answer:

<h3>The answer is option A</h3>

Step-by-step explanation:

Let the price of the room be p

Let the size of the room be s

To find the size of a kitchen that costs $3,824.00 we must first find the relationship between them

The statement

The price of tiling a room varies directly as the size of the room is written as

<h3>p = ks</h3>

where k is the constant of proportionality

when

p = $4,224.00

s = 264 square feet

Substitute the values into the expression to find k

That's

4224 = 264k

Divide both sides by 264

k = 16

So the formula for the variation is

<h3>p = 16s</h3>

when

p = 3824

s =  \frac{p}{16}

s =  \frac{3824}{16}

s = 239

The final answer is

239 square feet

Hope this helps you

6 0
3 years ago
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