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aleksandr82 [10.1K]
3 years ago
9

Write the rules for determining the sign of the product when multiplying integers. Then, write (4 points)

Mathematics
2 answers:
disa [49]3 years ago
8 0

Answer:

if the signs are the same the result is POSITIVE, if the signs are not the same the result is negative

Step-by-step explanation:

borishaifa [10]3 years ago
6 0

While multiplying a negative and another negative integer, the product's will be positive. While multiplying a positive and another positive integer, the product will be positive. It means that of the integers have same sign, then their product's sign will be positive. But, if the integers have different signs, i.e., one of them is positive and the other is negative, then the product will have negative sign.

While dividing a negative from another negative integer, the quotient will be positive. While dividing a positive from another positive integer, the quotient will be positive. It means that of the integers have same sign, then their quotient's sign will be positive. But, if the integers have different signs, i.e., one of them is positive and the other is negative, then the quotient will have negative sign.

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Find two consecutive even integers such that the square of the second, decreased by twice the first is 52
Fiesta28 [93]

Let the first integer be x. So, the next even number is x+2

Let's translate the formula: the square of the second is (x+2)^2, twice the first is 2x. So, the equation is

(x+2)^2 - 2x = 52

Expand the square to get

x^2+4x+4-2x = 52 \iff x^2+2x+4 = 52 \iff x^2+2x - 48 = 0

The solutions to this equations are

x = -8,\quad x = 6

So, the possible consecutive even numbers are

-8\text{ and } -6\quad\text{or}\quad 6\text{ and } 8

8 0
3 years ago
A+bi+c+di=a+c+bi+di what property of addition is being shown
Cloud [144]

Answer:

<em>Commutative property</em>

Step-by-step explanation:

a + bi + c + di = a + c + bi + di

It's the Commutative Property/

The Commutative Property say we can swap numbers over and still get the same answer when we add:

a + b = b + a

4 0
4 years ago
I got number 7 wrong can someone help me with the answer and the work
Amiraneli [1.4K]
To figure out this problem break it down into steps.

We know that there are 1 - 25 or 25 cards in total, one card is taken out and not replaced so now there are only 24 cards.

25 - 1 = 24.

Find the probability of getting one number greater than 10, this would be all numbers from 10 - 25, which are 25 - 10 = 15 options to choose that will give you a value greater than 10.

Probability = 15/24 = 5/8.

For 2 cards simply multiply the probability by itself to get 2 cards where the number is greater than 10.

5/8 • 5/8 = 25/64.

The probability of getting 2 cards that are greater than 10, are 25/64.

This is the solution.







4 0
3 years ago
Find the surface area of the right rectangular shown below hurry plss
laila [671]

Surface area of a cuboid

= [2(length)(width)] + [2(width)(height)] + [2(height)(length)]

= {[2(4)(2.5)] + [2(2.5)(2)] + [2(2)(4)]} units²

= (20 + 10 + 16) units²

= 46 units²

7 0
3 years ago
Read 2 more answers
Kylie is installing a safety net around a rectangular trampoline. The length of a trampoline is for an 4.88 yards. The width of
GrogVix [38]

Answer:

4,88 * 2 + 3,4 * 2 = 9,76 + 6,8 = 16,56 yards

8 0
4 years ago
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