The equation to use here is 3^x = 81. You could start to try numbers, and you would realize that x = 4 weeks.
Answer:
68
Step-by-step explanation:
For angle A, 3 is the adjacent leg. 8 is the hypotenuse.
The trig ratio that relates the adjacent leg to the hypotenuse is the cosine.



We know the cosine of angle A equals 0.375. We take the inverse cosine of 0.375 to find the measure of the angle.


The total number of significant figures in C is 5 because when the two numbers are multiplied then the result obtained has the least significant figure.
Given :
- Lillian multiplies two numbers.
- A has five significant figures and two decimal places and B has six significant figures and four decimal places.
The following steps can be used in order to determine the total number of significant figures of C:
Step 1 - According to the given data, 'A' has five significant figures and two decimal places and 'B' has six significant figures and four decimal places.
Step 2 - It is also given that C is equal to A times B.
Step 3 - So, the total number of significant figures in C is 5 because when the two numbers are multiplied then the result obtained has the least significant figure.
Therefore, the correct option is C).
For more information, refer to the link given below:
brainly.com/question/11904364
Answer:
20 : 43
Step-by-step explanation:
width : length
40 mm : 86 mm
40 : 86
20 : 43
Answer:
9 and 11
Step-by-step explanation: