Question

Please help ASAP 

Select the five correct options. (You must select all five to receive credit.)

(-) x (-) = +

(-) x (-) x (-) = +

(-) x (+) x (-) = -

(+) x (-) = +

(+) x (-) = -

(+) x (+) x (-) = +

(-) x (+) x (-) = +

(+) x (+) x (-) = -

(-) x (-) = -

(-) x (-) x (-) = -
2.
(-5) x 8÷
÷
2 =

-20

−54

20
3.
The temperature is 30 degrees at 6pm, but a very severe arctic front blasts through town that evening. By midnight the temperature has dropped 40 degrees! What is the temperature at midnight?

70 degrees

10 degrees

-70 degrees

-10 degrees
4.
When you multiply or divide two numbers that have the same sign [e.g., -7 x (-7) or -7÷
÷
(-7) ], the product or quotient will be _____ .

positive

negative
5.
An expression with an odd number of negative numbers will have a negative product or quotient.

False

True
6.
-14 (-5) =

70

-70

Description

Answer 1

The answer to 1 should help with the others.

1.
- × - = +
+ × - = -
- × + × - = +
+ × + × - = -
- × - × - = -

2. -5*8/2 = -40/2 = -20

3. 30 -40 = -10

4. The product or quotient of two numbers with the same sign will be positive.

5. True

6. -14*-5 = 70

_____
Your calculator can help with the numeric problems. (If it does them wrong, throw it away and get a better calculator.)

Statement 5 is key. That is the only one you need to remember.