Answer:
X=7.9
Y=7.9
Step-by-step explanation:
We have that x=y
And form Pythagoras theorem we have
So x = y = 7.9
I think 55 because you would multiply 11×5
Answer:
Accept the null hypothesis
Step-by-step explanation:
It leads to the conclusion to accept the null hypothesis.
The upper value corresponds to 1 – 0.025, or 0.975, which gives a z‐value of 1.96. The null hypothesis of no difference will be rejected if the computed z statistic falls outside the range of –1.96 to 1.96.
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Answer:
52.88 degrees
Step-by-step explanation:
To find the angle of elevation, we just need to use the tangent relation of the angle, as this relation is expressed as the division of the opposite side (that is, the height of the tree) by the adjacent side (that is, the length of the shadow), so we have that:
tangent(angle) = 37/28 = 1.3214
angle = arc tangent (1.3214) = 52.88 degrees
Answer:
x = 2
Step-by-step explanation
The main goal of solving this equation is getting the variable by itself.
For me personally, I prefer to have the variable on the left side of the equation, so I am just going to flip it over to look like this:
-6x - 4 = -16
Next, we must eliminate the constant on the left side of the equation, which is the four. So <u>add</u> four to both sides to get rid of the negative four. Remember, what you do to one side, you must also do to the other!
-6x - 4 = -16
<em>+4 +4</em>
Now, we have this:
-6x = -12
But wait! We aren't done yet! There is still the negative six with the variable. To get rid of it, we must divide both sides of the equations by negative six, as a negative divided by a negative is a positive. There is always an imaginary one next to a variable, so if we divide the negative six by itself, we will get one! Then, the variable will be by itself!
-6x = -12
<em>÷-6 ÷-6</em>
Now we have: x = 2
Remember that a negative divided by a negative is a positive, so the answer is 2, <u>not</u> negative two!