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3 years ago

Find the measure of the angles. Please show the steps if you can.

Mathematics

2 answers:

KatRina [158]3 years ago

7 0

Answer:

1. 2

2. 2.4

Step-by-step explanation:

1. 30 + 30 = 60

360 / 60 = 6

6 / 3 = 2

2. 25 + 25 = 50

360 / 50 = 7.2

7.2 / 3 =2.4

I think thats the answer I don't know if im right

leonid [27]3 years ago

6 0

I hope this helps! ^^

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geniusboy [140]

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3 years ago

2^x=1/128 solve the equation

madam [21]

Answer:

x = − 7

Step-by-step explanation:

y = 4.5*x^2-9*x+8.5;4.5;-9;8.5

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3 years ago

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3 years ago

The 8th term of a GP is -7/32 find its common ratio if its first term is 28

Ugo [173]

<h2>Common ratio = -1/2</h2>

Step-by-step explanation:

$\text{8}^{th}$ term of a Geometric progression is given as $\dfrac{-7}{32}$ . The first term is given as $28$ .

Any general Geometric progression can be represented using the series $a,ar,ar^{2},ar^{3},ar^{4}...\text{ }ar^{n-1}$ .

The first term in such a GP is given by $a$ , common ratio by $r$ , and the $n^{th}$ term is given by $ar^{n-1}$ .

In the given GP, $a=28;t_{8}=ar^{7}=\dfrac{-7}{32}\\\\28r^{7}=\dfrac{-7}{32}\\\\r^{7}=\dfrac{-1}{128}\\\\r=\dfrac{-1}{2}$

∴ Common ratio is $\dfrac{-1}{2}$ .

5 0

3 years ago

I need help with this question

bearhunter [10]

Answer:

7.28 miles

Step-by-step explanation:

Suppose the distance at closest approach is represented by x. Then the distance to the point of closest approach at the first sighting is ...

d1 = x·tan(62°)

At the second sighting, the distance to the point of closest approach is ...

d2 = x·tan(38°)

The difference of these distances is 8 miles, so we have ...

d1 -d2 = 8 = x(tan(62°) -tan(38°))

Dividing by the coefficient of x, we find ...

x = 8/(tan(62°) -tan(38°)) ≈ 7.2764 . . . . miles

The point of closest approach is about 7.28 miles from the landmark.

5 0

3 years ago