It's 93.
simple calculate it by:
(76+68+83+x)/4=80
then 73*5-(67+75+73+69)=x
where x here is the grade needed to reach an av. of 80. 4 is the number of tests.
*common answer*
Answer:
ANSWER:
The period of the sinusoidal function is 2π.
Step-by-step explanation:
EXPLANATION:
The sinusoidal function is a periodic function.It goes one unit up and one unit down with an amplitude of one and it repeats itself after this time interval.So,the period of the sine function is 2π
A sine or sinusoidal loop is a perpetual swing. It is called after the role sine. It happens frequently in tentative and practiced math, science, physics, engineering, signal processing, and other disciplines. Its utmost fundamental pattern as a role of time (t).
Answer: The tall cliff is 118.20 feet tall and the short cliff is 70.32 feet tall.
If you draw a picture with 2 cliffs and a river in the middle, you have find 2 right triangles. In each triangle the adjacent side to our known angle is the river of 90 feet. And the unknown side is the opposite leg.
Therefore, we can set up a tangent equation.
From the top of the short cliff to the top of the tall cliff, we can right and solve the following trig equation:
tan(28) = x /90
x = 47.88
From the top of the short cliff to the bottom, we can right and solve the following trip equation.
tan(38) = x/90
x = 70.32
The 70.32 is also the height of the short cliff. And adding the two answers together will give you the height of the tall cliff.
<span>A number is divisible by 6 if it is even and divisible by 3. Consider 234. This is an even number. The sum of the digits is 9. It is divisible by 3, which is divisible by 6</span>
Yes, 234 divisible par 6
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</span></span>
Answer:
None of the expression are equivalent to 
Step-by-step explanation:
Given
Required
Find its equivalents
We start by expanding the given expression
Expand 49
Using laws of indices: 
This implies that; each of the following options A,B and C must be equivalent to or alternatively,
A. 
Using law of indices which states;
Applying this law to the numerator; we have
Expand expression in bracket
Also; Using law of indices which states;
becomes
This is not equivalent to
B. 
Expand numerator
Using law of indices which states;
Applying this law to the numerator; we have
Also; Using law of indices which states;
= 
This is also not equivalent to
C. 
Using law of indices which states;
This is also not equivalent to
