Answer:
462.5
Step-by-step explanation:
- first you have to figure out how many times you can multiply ($185) without going over.
- Second you have to figure out what half of 185 is. (92.5)
- Finally you add the half (92.5) with the total from #1. (370)
- And your Total is 462.5.
Answer: 1 min 50 sec
Step-by-step explanation:
The range is max value - min value
min value = 14 mins 40 sec
max value = 16 mins 30 sec
so now subtract these 16 mins 30 sec - 14 mins 40 sec
= 1 min 50 sec
Answer:
48 cm
Step-by-step explanation:
Given:
Distance of rod from the wall = 45 cm
Distance of rod from the light = 15 cm
Length of rod = 12 cm
We can see that <DAM and <BAF are equal
Also, <DMA and <BFM are equal because they are corresponding angles
To find the length of the shadow, let's take the equation

Where.:
DM = ½ of length of the rod = ½*12 = 6
A.F = 15 + 45 = 60 cm
AM = 15 cm
Therefore,


Cross multiplying, we have:
15 * B.F = 60 * 6
15 * B.F = 360

BF = 24 cm
The shadow on the wall =
2 * BF
= 2 * 24
= 48 cm
The shadow on the wall is 48 cm
The pH value of a solution is a logarithmic function of the hydronium ion concentration in the solution. Since we are given the pH foe both we can easily calculate the H+ ion concentration as follows:
Aeen
3.3 = -log (H+)
H+ = 0.04 M
Marien
2.7 = - log (H+)
(H+) = 0.07 M
Therefore, Aeen's drink is 0.07/0.04 or 2 times more hydrogen ion concentration than Marien's drink.