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3 years ago

What is the sign of the product (3) × (−3) × (−2) × (4)?

Mathematics

1 answer:

Free_Kalibri [48]3 years ago

3 0

Answer:

Positive, because the products (3) × (−3) and (−2) × (4) are negative and the product of two negative numbers is positive.

Step-by-step explanation:

Since 1 * -1 = -1, and -1 * -1 = 1, the product of opposite signs produces negative numbers while the product of same signs produces positive numbers. So the product of 1 * 1 * 1 * -1 = -1, while -1 * -1 * -1 * -1 = 1.

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A book sold 33,200 copies in its first month. Suppose this represents 7.4% of the number of copies sold to date. How many copies

Marta_Voda [28]

Answer: 448648

Step-by-step explanation:

33,200 copies represent 7.4% of the total amount

-----------------------------------------------------

#1 33,200 ÷ 7.4%

- this is because how we get 33,200 by calculation is use the total amount and times 7.4% to get 33,200. So we are just working backwards. Since it was times before, then we divide after.

33,200÷7.4%

=33,200÷0.074

≈448648 (you can't round up when the real amount is less the exact amount)

6 0

3 years ago

Read 2 more answers

andrew is counting the total calories in his breakfast. he knows that a bowl of his favorite cereal with milk has 200 calories.

KatRina [158]

Answer: The graph of line y= 200+25x represents the given situation.

Step-by-step explanation:

Here, y represents the total calories he takes while x represents ounces of fruit smoothies with his cereal.

And, He knows that a bowl of his favorite cereal with milk has 200 calories.

Also, He also likes to drink a fruit smoothie with his cereal where Each ounce of the smoothie adds 25 calories.

Therefore, y = 200+ 25x is the total calories he takes after drinking the x ounces fruit smoothie with his cereal.

The x- intercept of the above line = (-8,0)

And, y-intercept = (0,200)

If x= 1 y=225

If x=-1 y= 175

Therefore, (1,225) and (-1,175) are the point of the above lines

Thus, with help of above information we can plot the graph of line y = 200+ 25x.

7 0

3 years ago

Both Amy and Ed travel 100 miles to their destination. They begin at the same

Mandarinka [93]

Answer:

Since there are two cars, each car, then, drove 104/2 = 52 miles. But one car is traveling 8 miles per hour faster.

Step-by-step explanation:

6 0

3 years ago

Factorize completely : 4x² - y² + 4y - 4

lana66690 [7]

Answer:

(2x-y+2)(2x+y-2)

Step-by-step explanation:

4x² - y² + 4y - 4=

=(2x)²-(y²-4y+4)

=(2x)²-(y-2)²

= [2x-(y-2)][2x+(y-2)]

=(2x-y+2)(2x+y-2)

a²-b²=(a-b)(a+b)

5 0

3 years ago

Read 2 more answers

7. Find x if the perimeter of the equilateral triangle is 77. Equation: Solution: Round to the nearest hundredth. 6.5X minus 1

stealth61 [152]

If the perimeter of equilateral triangle is 77 and the equation showing the perimeter is 6.5X-1 then the value of X is equal to 12.

Given that the perimeter of equilateral triangle is 77 and the expression showing the perimeter is 6.5X-1.

We are required to find the value of X which is used in the expression.

Expression is combination of numbers, fraction, coefficients, indeterminants, determinants, which are mostly not found in equal to form.

Perimeter which is given is 77 and 6.5X-1.

6.5X-1=77

6.5X=77+1

6.5X=78

X=78/6.5

X=12

Hence if the perimeter of equilateral triangle is 77 and the expression showing the perimeter is 6.5X-1 then the value of X is equal to 12.

Learn more about equation at brainly.com/question/2972832

#SPJ9

4 0

2 years ago