You can estimate 3.9 times 5.3 to 4 times 5 which is 20
so if the answer is around 20, you know that you will have exactly 2 digits before the decimal place

6 0

3 years ago

Whats the Area? how do i find it? In these specific questions?

just olya [345]

The formula for finding the area of a square is:
${s}^{2}$

The formula for finding the area of a triangle is:
$\frac{1}{2} bh$

So for the square the area would be:
${2x}^{2} \times {2x}^{2} = {4x}^{2}$

The area for the triangle would be:

$\frac{1}{2} {2c}^{3} \times 4c = {4c}^{2}$

7 0

3 years ago

Can any one solve this problem

ElenaW [278]

Answer:

sorry i can't

please mark me as brainlest

6 0

3 years ago

How many toothpicks would be needed for pattern 4

larisa86 [58]

can you show me what the math problem is?

7 0

3 years ago

Please help me with this ​

Please help me with this