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3 years ago

When you square or cube a negative number is it still negative or does it become positive?

1 answer:

6 0

When you square a negative number, the result is positive.
(-4)^2 = (-4)ª(-4) = 16

When you cube a negative number, the result is negative.
(-4)^3 = (-4)•(-4)•(-4) = -64

Negatives pair up and cancel out, so odd exponents always have one negative unpaired, making the result negative.

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Stacy performed an experiment in which she rolled a six-sided die multiple times. The results are shown below

user100 [1]

Answer:

5/9

Step-by-step explanation:

Let the probability of getting a multiple of 3 is "A"

Let the probability of getting an even number is "B"

Total number of outcomes=36

Total number of favourable outcomes of either a multiple of 3 or an even number are

(1,1) ,(1,2) ,(2,1) ,(1,3) ,(3,1) ,(2,2) ,(1,5) (5,1) ,(3,3) ,(2,4) ,(4,2) ,(2,6) ,(6,2) ,(3,5) ,(5,3) ,(4,4) ,(6,4) ,(4,6) ,(5,5) ,(6,6)

That is we have 20 favourable outcomes

Hence, Probability=\frac{\text{favourable outcomes}}{\text{total number of outcomes}}Probability=

total number of outcomes

favourable outcomes

Therefore, after substituting the values we get

probability=\frac{20}{36}probability=

After simplification we will get

probability=\frac{5}{9}probability=

3 0

3 years ago

The scale on a map is stated as 1:100000. On the map, Jennifer estimates that the distance to her destination is 8cm. If she is

Gnoma [55]

Answer:

8km

Step-by-step explanation:

1:100,000 = 1.6 miles = 1 kilometer x 8 = 8 km

3 0

3 years ago

Please help find the interest?!

Vaselesa [24]

You want to calculate the interest on $300 at 9% interest per year after 4 month(s). The formula we'll use for this is the simple interest formula, or:

Where:

P is the principal amount, $300.00.

r is the interest rate, 9% per year, or in decimal form, 9/100=0.09.

t is the time involved, 4....month(s) time periods.

Since your interest rate is "per year" and you gave your time interval in "month(s)" we need to convert your time interval into "year" as well.

Do this by dividing your time, 4- month(s), by 12, since there's 12 months in 1 year.

So, t is 0.333333....year time periods.

To find the simple interest, we multiply 300 × 0.09 × 0.333333 to get that:

The interest is: $9.00

Usually now, the interest is added onto the principal to figure some new amount after 4 month(s),

or 300.00 + 9.00 = 309.00. For example:

If you borrowed the $300.00, you would now owe $309.00

If you loaned someone $300.00, you would now be due $309.00

If owned something, like a $300.00 bond, it would be worth $309.00 now.

3 0

4 years ago

Can someone quickly answer this please

AnnyKZ [126]

Answer:

Step-by-step explanation:

Hello !

(4,4*2,4) + (3,14 * 2,2² )/2 =

10,56 + 7,60 = 18,2 m²

8 0

4 years ago

I need help with measurements

Scrat [10]

How would you like to be helped?

4 0

4 years ago