Answer:
option d is the correct answer
Step-by-step explanation:
use formula for finding sum of all interior angles of regular polygon i.e. (n-2)×180 where n is no of sides of regular polygon then divide it by no. of sides of regular polygon to find measure of one angle of regular polygon and then subtract it from 180° to find the answer
Step-by-step explanation:
x+y=5
3x-2y+5=0
3x-2y= -5
x+y=5...... equation 1
3x-2y= -5....... equation 2
there fore make x the subject of the formula in equation 1
x=5-y.. equation 3
substitute equation three in equation 2
3(5-y)-2y=-5
15y-3y-2y=-5
10y=-5
divide both sides by 10
y=-5/10
y=-½
substitute y into equation 1
x+(-½)=5
x=5+½
x=5½
x=5½,y= -½
Answer:
a. Yes, it will float in oil since it is less dense than oil.
b. No, it won't float in oil since it is more dense than the oil itself.
c. Yes, it will float in water since, the water is more dense than the object itself.
Answer:
1. -9xy
2. 6ab
3.-8mn
4. 17nx
Step-by-step explanation:
Answer: 7
Step-by-step explanation:
Given : The recommended daily allowance for vitamin c is 60 mg per day .
Then, for one whole week , the recommended allowance for vitamin c will be :-
Also, there are 70 mg of vitamin C per 100 g orange.
1 g = 1000 ml
The proportion of Vitamin C in 100 g = 
1 oz =28.3495 grams
Then, 
Then, amount of vitamin C in 85048.5 mg = 
Then, the number of oranges have to eat each week to meet this requirement= 
Hence, about 7 oranges you would have to eat each week to meet this requirement.
