Cho hình chóp S ABCD . Có đáy là hình chữ nhật, cạnh AB b = , BC b = 3 , SA vuông góc với mặt phẳng đáy. Góc giữa cạnh bên SC và mặt phẳng đáy bằng 45Ο . Khoảng cách từ điểm A đến mặt phẳng ( ) SBD tính theo b bằng A. 2 5 . 5 b B. 2 5 . 3 b C. 2 57 . 19 b D. 2 57 . 3

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.

step-by-step explanation:

de-gf

hj=3x+20

ji=15x-64

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!