Finding actual height and width of a room

Mathematics

1 answer:

sladkih [1.3K]3 years ago

7 0

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Describe the relationship between n and 4 that will make the value of the expression 6 x n/4 greater than 6.

KatRina [158]

Answer:

n is greater than 4

Step-by-step explanation:

We have to find the relation between n and 4 for which $(6\times \frac{n}{4})$ is greater 6.

Converting this verbal expression into algebraic expression,

$(6\times \frac{n}{4})>6$

$(6\times \frac{n}{6\times 4})>\frac{6}{6}$

$\frac{n}{4}>1$

$\frac{n}{4}\times 4>1\times 4$

n > 4

Therefore, relation between n and 4 is "n is greater than 4".

8 0

3 years ago

Need help on this one

Furkat [3]

The trick here is to not use sin and cos at all.

The -13/15 is the x coordinate of a line from the origin to the unit circle (the line with angle theta). That happens to be the cos(theta).

The y coordinate is the sin(theta).

You can draw this as a triangle where x^2 + y^2 = 1.

So y = √(1 - (13/15)^2) ≈ 0.49889. But your exact answer should be:

$sin(\theta) = \sqrt{1-(\frac{13}{15})^2} = \frac{2\sqrt{14}}{15}$

5 0

4 years ago

5. You answered 21 out of 25 questions correctly on a test. Did you reach your goal of getting at least 80%?

hichkok12 [17]

Answer:

You scored more than 80 %

Step-by-step explanation:

21/25

We need to change this to a decimal, then to a percent

21/25 *4/4 = 84/100

This is out of 100 so it is 84%

84>80.