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iVinArrow [24]
2 years ago
12

Explain how to estimate 368 + 231 in two different ways

Mathematics
2 answers:
Komok [63]2 years ago
3 0
First way. you could round to the tens place and add. 370 + 230 about 600.

round to the nearest hundreds. 400 plus 200. about 600.
cestrela7 [59]2 years ago
3 0
بنسائنا نيو نيويورك نيور قنيت 600 + 200 يتيري وبني قناوي

Hope this helped
يتيري تقرير ههههههه
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Use a double angle identity to rewrite the formula r(Θ)=<img src="https://tex.z-dn.net/?f=1%2F16v%5E2sin%28theta%29cos%28theta%2
Artist 52 [7]

Answer:

1/32v²sin2θ

Step-by-step explanation:

Given the expression r(theta) = 1/16v²sinθcosθ

According to double angle of trigonometry identity;

Sin2θ = sin(θ+θ)

Sin2θ = sinθcosθ + cosθsinθ

Sin2θ = 2sinθcosθ

sinθcosθ = sin2θ/2 ... **

Substituting equation ** into the question

1/16v²sinθcosθ = 1/16v²(sin2θ/2)

1/16v²sinθcosθ = 1/2×1/16v²(sin2θ)

1/16v²sinθcosθ = 1/32v²sin2θ

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7 0
3 years ago
51 is 34 percent of what number
saul85 [17]
I think it is 17 but i am not 100% accurate
6 0
2 years ago
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How do I solve this?
Svet_ta [14]

Answer:

sin (330)

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cos (390)

Step-by-step explanation:

Solve the trigonometric equation by isolating the function and then taking the inverse. Use the period to find the full set of all solutions

4 0
2 years ago
Is the following true or false? d/dx[x^3e^x]=x^2e^x (3x+2)
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It's false. It's a product so...
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3 0
3 years ago
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scoray [572]
The correct answer would be D.
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x(time)
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hope this helps!
3 0
2 years ago
Read 2 more answers
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