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kow [346]
3 years ago
15

Does anyone know why x is normally used for an unknown number?

Mathematics
1 answer:
jeka943 years ago
7 0

Then you are able to substitute in X and it can have a infinite number of values catered to the question.

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I need help on number 3 I don’t know how to solve it and I also need help on 4 /6/7 please this is due tomorrow!!!!!
kow [346]
On the second month plant B. would be equal to the height of plant a (14 Cm). Therefore your answer would be THE THIRD MONTH.


6 0
3 years ago
Solve the question below 77
Vadim26 [7]

Answer:

<em>The height of the monument is 124.8 ft</em>

Step-by-step explanation:

<u>Right Triangles</u>

The ratios of the sides of a right triangle are called trigonometric ratios. The tangent ratio is defined as:

\displaystyle \tan\theta=\frac{\text{opposite leg}}{\text{adjacent leg}}

The figure attached below shows the different distances involved in the problem. We heed to find the value of h, the height from Daniel's eyes. Then we'll add it to the 6 ft where his eyes are located from the ground.

Taking the angle of 68° as a reference:

\displaystyle \tan 68^\circ=\frac{h}{48}

Solving for h:

\displaystyle h=48\tan 68^\circ

Calculating:

h = 118.8 ft

The height of the monument is 118.8 ft + 6 ft = 124.8 ft

6 0
3 years ago
In a group of 10 people, there are 4 people that have the flu virus. Suppose we pick 3 random persons to test in order to determ
Murljashka [212]

Answer:

Tests is 100% Accurate, so by using the formula of random variable probability.

Step-by-step explanation:

Total number of people = 10

Sample space = p(A) = 10

Number of people that have flu = n(s) = 4

Pick random 3 persons, the possibility that they have flue is n(A) = ?

Let X is the random variable, consisting of number of positive flu test,

Tests is 100% Accurate, so by using the formula of random variable probability, we get

  P(X) = n (A) / n(S)

  P(X)      = ¾, is the probability of having positive flu test

5 0
3 years ago
If m angle A is 155 degrees what is m angle c?
Lubov Fominskaja [6]
Hi again! If the measure of angle A is 155 degrees, then the measure of angle C is also 155 degrees because vertical angles are congruent. Vertical angles are the two angles created when two lines intersect that are NOT linear. 
6 0
3 years ago
Read 2 more answers
ANSWER NEEDED ???????
SpyIntel [72]
The correct answer is -2
Can you mark me as brainliest?
4 0
3 years ago
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