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Lana71 [14]
1 year ago
12

Please help

Mathematics
1 answer:
ryzh [129]1 year ago
6 0

Answer:

A 90°

B 90°

C 62°

D 118°

Hopefully this helps u

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What is the sum of an infinite geometric series if 2=5 and r=1/3
Morgarella [4.7K]

Answer:

\frac{15}{2}

Step-by-step explanation:

The problem has a mistake, it should NOT be 2 = 5, rather a=5.

Now, given a = 5 (the first term is a), and

r = 1/3 (common ratio),

<em>we can solve for the sum of the infinite series by using the formula:</em>

<em>S_{\infty}=\frac{a}{1-r}</em>

<em />

Where S_{\infty} is the sum of the infinite geometric series,

a is the first term (given as 5), and

r is the common ratio ( r= 1/3 given)

<em>We now plug these into the formula and get our answer:</em>

<em>S_{\infty}=\frac{a}{1-r}\\=\frac{5}{1-\frac{1}{3}}\\=\frac{5}{\frac{2}{3}}\\=\frac{15}{2}</em>

7 0
3 years ago
Maria receives a commission of 11.5% for each pair of shoes she sells. She earned $207 in commission last week. What was the dol
SCORPION-xisa [38]

Answer:

Step-by-step explanation:

idk

7 0
3 years ago
7 minutes to half an hour
Orlov [11]

What's the question you're asking?

3 0
4 years ago
Read 2 more answers
The equation 2y = 8x represents a proportional relationship. What is the constant of proportionality?
Sphinxa [80]

Answer:

C) 4

Step-by-step explanation:

Given equation:

2y=8x

The above equation represents proportional relationship.

To find the constant of proportionality.

Solution:

<em>The equation representing proportional relationship is given by:</em>

<em>y=kx</em>

<em>where k represents constant of proportionality.</em>

So, in order to find the value of k for the given proportionality relationship, we will solve for y

We have:

2y=8x

Solving for y

Dividing both sides by 2.

\frac{2y}{2}=\frac{8x}{2}

y=4x

∴ k=4

Thus, the constant of proportionality = 4.

4 0
4 years ago
A scientist measures the angle x and the distance y between the Earth and the Sun. Using complete sentences, explain how the sci
Olin [163]

I'm sorry, but I have to seriously question the whole process.

-- What does "the angle between the Earth and sun" mean?
-- How in the world does he measure the distance between the Earth and sun ?
-- How are either of these related to the distance between the Moon and Sun ?

To me, this "scientist's" methods are as defective as this question is.


8 0
3 years ago
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