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3 years ago

Answer the questions dont answer if u dont know

Mathematics

1 answer:

svlad2 [7]3 years ago

7 0

Answer:

3.) 2.5cm

4.) 14mm

5.) 1.75in

6.) 12cm

7.) 4in

8.) 1.6ft

9.) 31.4in

10.) 43.96in

11.) 56.52in

Step-by-step explanation:

3-5 finding the radius is just half of the diameter.

5/2= 2.5

28/2= 14

3.5/2= 1.75

6-8 is finding the diameter. To find the diameter multiply the radius by 2.

6*2= 12

2*2= 4

.8*2= 1.6

9-11 is finding the circumference. To find it use this equation C= 2πr.

C= circumference, 2=2, π= 3.14, r= radius

#9 the diameter is 10in so the radius is 5in

C=2(3.14)5

C=31.4

#10 the radius is 7in

C= 2(3.14)7

C= 43.96

#11 diameter is 18in so the radius is 9in

C=2(3.14)9

C= 56.52

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VladimirAG [237]

1)

LHS = cot(a/2) - tan(a/2)

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= (2-sec^2(a/2))/tan(a/2)

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2.

LHS = cot(b/2) + tan(b/2)

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x f(x)

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Learn more about increasing functions here: brainly.com/question/12940982

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And simplify the numerator and denominator again

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And we are finally left with the answer which is $\frac{4}{7}$

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