The answer is A
How?-
<span>let x be the angle
x-28= complement the sum of complementary angles equal 90 degrees
therefore x+(x-28)=90
2x-28=90
2x=118
x=59 angle is 59, complement is (59-28)=31</span>
This is how this one is done. I'm assuming by this type of a problem that you are in logs in math since you need to rules of logs to solve it. First things first...laws of exponents when the bases are like. Our base is a 3. Here's the problem written out:
. The rules for exponents when dividing like bases is that you subtract the exponents. So we will do that:
. Since we are solving for x we need to find a way to get it down from its exponential position. We do that by takking the log of both sides.
. Another rule of logs, the power rule, is that once we take the log of a base with an exponent, we can move the exponent down in front, like this:
. Now we will divide both sides by log(3) to get
. We do that math on the right side on our calculator to get
. Now this is something we can handle. We have a second degree polynomial that we have to factor for x. Do that by moving the 3 over by subtraction.
. Factoring that you have that x = 3 and x = -1. There you go!
Answer:
6
Step-by-step explanation:
6 + x + y = 20
Subtract 6 from each side
x+y = 20-6
x+y = 14
x + y = k
14 = k
we want to find 20 -k
20 - 14
6
Answer:
<h2>y - 8 = 2(x - 2)</h2>
Step-by-step explanation:
The point-slope of an equation of a line:
<em>m</em><em> - slope</em>
The formula of a slope:
We have the points (-2, 0) and (2, 8).
Substitute:
for the point (-2, 0):
for the point (2, 8):
Answer:
With increase of elevation by 02 mile there is a fall in temperature by degrees
Step-by-step explanation:
Rate of change of temperature is per mile of increase in elevation
Total increase in elevation miles
Hence, change in the temperature with 02 mile of increase of elevation
degrees
With increase of elevation by 02 mile there is a fall in temperature by degrees