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Anna007 [38]
3 years ago
12

What is the decimal value of COS x

Mathematics
1 answer:
mars1129 [50]3 years ago
5 0

Answer:

the decimal value for cos x is 1

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The ratio of the length of an airplane wing to its width is 9 to 1. If the length of a wing is 40.4 ​meters, how wide must it​ b
VARVARA [1.3K]
The ratio of length to width is 9:11 is to 9 as x is to 40.41/9 = x/40.4 x = 40.4/9 = 4.48888.. meters
4 0
3 years ago
F(x) = 2 sin x- tanx is not a sinusoid.
OLga [1]

Answer:

True

Step-by-step explanation:

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3 years ago
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How do i solve 2(x+4)=5x-2
IceJOKER [234]
=2(5x2+20x-1)
The 2 by the x has to be on top of the x
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What is the following simplified product? Assume x greater-than-or-equal-to 0
nlexa [21]

Answer:

  10x^4\sqrt{6}+x^3\sqrt{30x}-10x^4\sqrt{3}-x^3\sqrt{15x}

Step-by-step explanation:

Remove perfect squares from under the radicals.

  (\sqrt{10x^4}-x\sqrt{5x^2})(2\sqrt{15x^4}+\sqrt{3x^3})\\\\=(\sqrt{10x^4})(2\sqrt{15x^4}) +(\sqrt{10x^4})(\sqrt{3x^3}) -(x\sqrt{5x^2})(2\sqrt{15x^4}) -(x\sqrt{5x^2})(\sqrt{3x^3})\\\\=2\sqrt{150x^8}+\sqrt{30x^7}-2x\sqrt{75x^6}-x\sqrt{15x^5}\\\\=\boxed{10x^4\sqrt{6}+x^3\sqrt{30x}-10x^4\sqrt{3}-x^3\sqrt{15x}}

_____

The applicable rules of exponents are ...

  (x^a)(x^b) = x^(a+b)

  √(a^2) = a . . . . . . . for a > 0

  (√a)(√b) = √(ab)

5 0
3 years ago
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I really need help with this
ElenaW [278]
Number of boys:
1000/2+20/2=510
Number of girls:
1000/2-20/2=490
510 boys and 490 girls competed at Special Olympics

5 0
4 years ago
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