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Volgvan
3 years ago
7

What are the 5s in 4,557

Mathematics
2 answers:
pentagon [3]3 years ago
6 0
The 5's in 4,557 are 500 and 50.
elena-14-01-66 [18.8K]3 years ago
3 0
The 5s are 500 and 50
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Which Greek mathematician wrote the most definitive text on geometry, one that is still referred to today?
larisa86 [58]
C)Euclid............
6 0
3 years ago
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Correct answers only please!
MrRissso [65]

Answer:

23.6°

Step-by-step explanation:

In this question we have to use some trigonometry to work out angle XVW. Since we are working out angles all of the trigonometric functions will have to be to the ⁻¹. The first thing we need to identify is will formula will we use out of the following:

Sin⁻¹ = Opposite ÷ Hypotenuse

Tan⁻¹ = Opposite ÷ Adjacent

Cos⁻¹ = Adjacent ÷ Hypotenuse

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10 = Hypotenuse

4 = Opposite

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We know which formula to use because the length won't be in the triangle for example we will be using the Sin triangle because we don't have an adjacent. If we don't have an adjacent then the other formula's won't work.

Now we substitute in the values to find the value of angle XVW

Sin⁻¹ = Opposite ÷ Hypotenuse

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6 0
3 years ago
Write the sum of 18+27 as the product of their gcf and another sum
Georgia [21]
Factors of 18: 1; 2; 3; 6; 9; 18

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GCF(18; 27) = 9

<span>18 + 27 = 9 × 2 + 9 × 3 = 9 × (2 + 3) </span>
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Cos(x+y)/cos(x)sin(y)=cot(y)-tan(x)
zhuklara [117]
So there is an identity we'll need to use to solve this:

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replace the numerator with the right hand side of that identity and we get:

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Separate the numerator into 2 fractions and we get:

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which simplifies to:

coty - tanx




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Perimeter of a mirror is 260. The length is x cm. Find the height of the mirror in terms of x
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\bf \textit{perimeter of a rectangle}\\\\ P=2(L+h)~~ \begin{cases} L=length\\ h=height\\[-0.5em] \hrulefill\\ P=260\\ L=x \end{cases}\implies 260=2(x+h) \\\\\\ \cfrac{260}{2}=x+h\implies 130=x+h\implies 130-x=h

4 0
3 years ago
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