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Art [367]
2 years ago
12

Which fraction is not equivelent to 25% A.1/4 B.5/20 C. .25 D. 2/5

Mathematics
1 answer:
Hunter-Best [27]2 years ago
6 0

Answer:

1/4

Step-by-step explanation:

p% = p/100 so that

25/100 then after we will reduce both with 25

1/4

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If 180°<θ<270°, and sin⁡θ=−3/4, what is the value of sin(−θ)?
Oxana [17]

Answer:

sin(-\theta)=\frac{3}{4}

Step-by-step explanation:

Given:

180°<θ<270° and sin(\theta)=-\frac{3}{4}

We know for any angle \theta,

sin(-\theta)=-sin(\theta)

∴sin(-\theta)=-(-\frac{3}{4})=\frac{3}{4}

5 0
3 years ago
Michael estimated his mass as 8 kilograms.Is his estimate reasonable?Justify your answer.
DerKrebs [107]
Yes, his estimate is reasonable. But only if Michael is less than 2 years old.
5 0
3 years ago
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Observe the equation below, can a value be found for x to make the equation true? Why or why not? 0=4x
Fiesta28 [93]
You have written 0 = 4x.

The value of x that makes it true is x = 0, given that 4 times 0 is 0.

Nevertheless, I think you wanted to write 0 = 4 ^x (this is 4 raised to the power 4).

In that case, there is not any valued of x that satisfies the equation. This is, the equation is always false.

That is because, there is not any value of x for which 4^x is zero. The range of this function is al the positive values of x, which exclude zero.
3 0
3 years ago
A pole 11 feet tall is used to support a guy wire for a tower, which runs from the tower to a metal stake in the ground. After p
Juliette [100K]

The given question is on trigonometry which requires the application of required <em>function</em> so as to determine the <em>value known</em>. So that the <u>length</u> of the guy wire is 67.0 feet.

<em>Trigonometry </em>is an aspect of mathematics that requires the application of some <u>functions</u> to determine the <em>value</em> of an unknown quantity.

Let the <u>length</u> of the guy wire be represented by l, and the angle that the guy wire makes with the <u>stake</u> be θ. So that applying the appropriate trigonometric function to determine the <em>value</em> of θ, we have:

Tan θ = \frac{opposite}{adjacent}

          = \frac{11}{4}

Tan θ = 2.75

θ = Tan^{-1} 2.75

  = 70.0169

θ = 70^{o}

Considering triangle formed by the <u>tower</u> and the <u>stake</u> to determine the value of l, we have;

Cos θ = \frac{adjacent}{hypotenuse}

Cos 70^{o}  = \frac{23}{l}

l = \frac{23}{Cos 70^{o} }

 = \frac{23}{0.3420}

l = 67.2515

l = 67 feet

The <u>length</u> of the guy wire is 67 feet.

For more on trigonometric, check: brainly.com/question/6459892

4 0
2 years ago
A softball is thrown straight up, reaching a maximum height of 20 meters, what is the ball's approximate vertical speed when it
Gnesinka [82]
19.9 meters per second
4 0
3 years ago
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