How is he wrong for this math problem if you don’t know it I suggest go to another math problem

Mathematics

2 answers:

konstantin123 [22]3 years ago

6 0

Answer:

Jackson s reasoning is incorrect this because if we multiply with numbers smaller than zero what we get is a smaller number: 54•0.2=27 etc...

Vikki [24]3 years ago

4 0

Answer: There are two cases at least that show that Jackson's reasoning is wrong: Multiplying decimals and factions less than one by themselves.

Multiplying a Negative number times a positive number will also produce a product that is less than the factors.

Step-by-step explanation: Fractions times fractions

1/2 × 1/2 = 1/4 A fraction multiplied by itself always yields a smaller product. 1/3×1/3 =1/9

3/8 × 3/4 = 9/32 9/32 is smaller than 3/8 (12/32) and 3/4 (24/32)

1/12 × 9/10 = 9/120 thats 3/40 . To compare, change to decimals, use a calculator to divide the numerator by the denominator. 1/12 is 0.083333

3/40 is 0.075000

Decimals times decimals

.5 × .5 = .25 .75 × .75 = .5625

Negative numbers

55 × -5 = -275 . 2 ×-5 = -10

You might be interested in

Two numbers are the ratio 3:2. If the smaller number is 24, find the larger number.

erastova [34]

Basically, you try to find 2 numbers that divide to 3/2. So, using trial and error, plug in numbers for x in this expression: x/24=3/2, and solve to find the number that makes it true. You end up getting 36/24=3/2. Hope that helps! :)

5 0

3 years ago

Find the surface area of the cone in terms of pi.

Nana76 [90]

Surface area of cone is 60π cm^2

Option A is correct.

Step-by-step explanation:

We are given:

Height = 17cm

Radius= 3cm

We need to find surface area of cone in terms of π.

The formula used to find surface area of cone is:

$Surface\,\,area\,\,of\,\,cone=\pi r(r+\sqrt{h^2+r^2})$

Putting values:

$Surface\,\,area\,\,of\,\,cone=\pi r(r+\sqrt{h^2+r^2}) \\Surface\,\,area\,\,of\,\,cone=\pi \,3(3+\sqrt{(17)^2+(3)^2})\\Surface\,\,area\,\,of\,\,cone=\pi \,3(3+\sqrt{289+9)}\\Surface\,\,area\,\,of\,\,cone=\pi \,3(3+\sqrt{298)}\\Surface\,\,area\,\,of\,\,cone=\pi \,3(3+17)\\Surface\,\,area\,\,of\,\,cone=\pi \,3(20)\\ Surface\,\,area\,\,of\,\,cone=60\pi$