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2 years ago

Which ratio is equivalent to 4.5? 10 15 4 10 16 20 15 8

Mathematics

2 answers:

vesna_86 [32]2 years ago

7 0

the answer is 8,10,12,15

bekas [8.4K]2 years ago

6 0

Answer:

8:10 and 12:15

Step-by-step explanation:

to find the two equivalent ratios of 4:5 we need to apply multiplication method only to get the answer in integer form therefore, the equivalent ratios of 4:5 are 8:10 and 12:15

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Think About the Process The length of a rectangle is twice the width. The area of the rectangle

natima [27]

Answer:

length of each square= $\sqrt{43}$ ≈ 6.6

the length of the rectangle = 2 $\sqrt{43}$ ≈ 13.1

width of the rectangle ≈ $\sqrt{43}$ ≈ 6.6

Step-by-step explanation:

8 0

2 years ago

HELP FAST GIVE A DECENT AMOUNT OF POINTS! FOR EASY!

laila [671]

Answer:

The value of angle is 56.9°

Step-by-step explanation:

First, you have to find the length of hypotenuse using Pythagoras' Theorem, c² = a² + b² :

${c}^{2} = {a}^{2} + {b}^{2}$

$let \: a = 8.25 \\ let \: b = 6.45$

${c}^{2} = {8.25}^{2} + {6.45}^{2}$

${c}^{2} = 68.0625 + 41.6025$

${c}^{2} = 109.665$

$c = \sqrt{109.665}$

$c = 10.47cm \: (4s.f)$

In order to find θ, you have to apply Sine Rule :

$\sin(θ) = \frac{opposite}{adjacent}$

$let \: oppo. = 8.77 \\ let \: hypo. = 10.47$

$\sin(θ) = \frac{8.77}{10.47}$

$θ = { \sin( \frac{8.77}{10.47} ) }^{ - 1}$

$θ = 56.9 \: (1d.p)$

4 0

2 years ago

Urgent! Two questions! (Pre Calc) (30 points)

mina [271]

Problem One
Sin(90 + q) = sin(90)*cos(q) + sin(q)*cos(90)
sin(90 + q) = 1 * cos(q) + sin(q)*0
sin(90 + q) = cos(q)

You can elimate anything beginning with Cos
You can also eliminate the sin function with a minus between it.

Problem 2
Sin(x) = 1/csc(x) That makes C and D incorrect.
Correct answer has to be A. Since this is a multiple choice question you can't qualify the answer, but there are some points that exhibit questionable behavior, like 2 $\pi$ *f*t = 0 for example. The function becomes undefined.