4 years ago

Solve the open sentence.

Mathematics

2 answers:

dexar [7]4 years ago

7 0

Answer:The awnser is B Trust me I took the quiz

Lisa [10]4 years ago

6 0

–2 ≤ n + 4 ≤ 7 |-4

–6 ≤ n ≤ 3

Answer: B. n ≥ –6 and n ≤ 3

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aev [14]

Answer:

20%

Step-by-step explanation:

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3 years ago

The radius of a circle is 13 in. Find its area in terms of pi

grigory [225]

Answer:

A≈530.93in²

Step-by-step explanation:

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4 years ago

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If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin(a+b).

frutty [35]

Answer:

$sin(a+b)=\frac{4\sqrt{21}+2\sqrt{65}}{45}$

Step-by-step explanation:

we are given

$sin(a)=\frac{4}{9}$

$sin(b)=\frac{2}{5}$

Firstly, we will draw triangle

we get

$cos(a)=\frac{\sqrt{65} }{9}$

$cos(b)=\frac{\sqrt{21} }{5}$

now, we can sue formula

$sin(a+b)=sin(a)cos(b)+cos(a)sin(b)$

now, we can plug values

$sin(a+b)=\frac{4}{9}\times \frac{\sqrt{21} }{5}+\frac{\sqrt{65} }{9}\times \frac{2}{5}$

now, we can simplify it

$sin(a+b)=\frac{4\sqrt{21}+2\sqrt{65}}{45}$

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3 years ago

What is 0.36 (the six repeating) as a fraction?

Lubov Fominskaja [6]

I would say that 0.36 is 36/100.

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3 years ago

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F(x) = x-5

fgiga [73]

Answer:

g(f(x)) =1 - (12/(x^2-10x+25) +4

Step-by-step explanation:

f(x) = x-5

g(x) = x^2 – 12/ x^2 +4

g(x) = 1– 12/ x^2 +4

so we have:

g(f(x)) = 1 -12/(x-5)^2 +4

g(f(x)) =1 - (12/x^2-10x+25) +4

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3 years ago