Answer:
The mistake there is the expression shown is not in PEMDAS.
<em>PEMDAS rule states that the order of operation starts with the parentheses first or the calculation which is enclosed in brackets. Then the operation is performed on exponents(degree or square roots) and later we do operations on multiplication & division and at last addition and subtraction.</em>
Step-by-step explanation:
1 + 4 x 9 4 x 9 = 36
1 + 36 36 + 1 = 37
37
Always remeber to use multiplication first!
Answer: x ≈ 18 ft
Step-by-step explanation:
We will use our trig knowledge to solve this.
The man is standing 10 ft away, but we also need to add the 5 ft shadow as well as that is a point on our triangle.
We can set up a simple trig equation of: tan(50) = x/15
x being the height of the lamppost.
Now we solve.
tan(50) = 1.1918
1.1918 *15 = x
x = 17.876
Now round to the nearest foot.
x ≈ 18 ft
In order to solve this equation, you must focus your efforts on isolating x. First, add 4x to both sides of the equation. This will eliminate it on the left and cause the equation to look like this: 35=15+4x. Next, you need to subtract 15 from both sides <span>which will eliminate it on the right and cause the equation to look like this: 20=4x. Finally, you must divide both sides of the equation by 4. Ta-da!~ This leaves you with x=5.
The answer is x=5.
Good luck and good day! c:
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Answer:
0
Step-by-step explanation:
<em>(y = mx + b) </em>just means<em> y = slope multiplied by constant rate of change + y - intecept. </em>
Y - intercept is the starting ammount or the ammount paired with 0. (0,...)
You can find slop by using the equation<em> y1 - y2 divided by x1 - x2.</em>
Then lastly x in the number that in running along the middle line.
Answer:
The answer will be 30cm
Because 40 divided by 4 is 10 and times it by 3
