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Natalija [7]
3 years ago
11

The complement of an angle of 22�� is an angle measuring

Mathematics
1 answer:
djverab [1.8K]3 years ago
5 0
Assuming 22 degrees

complement means they add to 90 degrees

22+?=90
minus 22 both sides
?=68



answer would be C
You might be interested in
In 2017 there were enough renewable energy sources to supply a total of 9309 megawatts of electricity in a country. This graph s
STatiana [176]

Approximately 1700 megawatts of electricity could be supplied by Hydropower in 2017. Option B is correct.

Given that,
In 2017 there were enough renewable energy sources to supply a total of 9309 megawatts of electricity in a country. The graph shows the proportions that the different renewable energy sources could supply.

<h3>What are percentages?</h3>

the percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.

Here, from the graph contribution of the hydropower is 18.2%.
So the electricity produced through hydropower is,
= 9309 * 18.2%
= 9309 * 18.2/100
= 1694.23
≈ 1700 megawatts

Thus, approximately 1700 megawatts of electricity could be supplied by Hydropower in 2017.

Learn more about percentages here:

brainly.com/question/13450942

#SPJ1

5 0
1 year ago
Jean-Patrick found an old unopened bag of lawn fertilizer in his shed. The bag weighs 36 pounds, and the instructions claim
balandron [24]

Answer:

He needs to use 25.2 pounds to fertilize his lawn.

Step-by-step explanation:

In order to solve this problem we can use a rule of three in such a way that the content of the bag (36 pounds) can cover 10,000 ft² in the same proportion as "x" pounds can cover 7,000 ft², where "x" is the amount of fertilizer he needs to use.

36 pounds -> 10,000 ft²

x pounds -> 7,000 ft²

36/x = 10000/7000

10000*x = 36*7000

x = 36*7000/10000

x = 25.2 pounds

He needs to use 25.2 pounds to fertilize his lawn.

3 0
3 years ago
Read 2 more answers
You know how to play 21 songs on your guitar. (a) If you want to choose 8 of the songs to make a setlist to play for a small gat
UNO [17]

Answer:

<em>(a) 8,204,716,800</em>

<em>(b) 5,985</em>

Step-by-step explanation:

<u>Combinations and Permutations</u>

Combinatorics is the part of the discrete mathematics that studies the enumeration of groups or sorting of a determined number of elements.  The concept of combinations is tied to the different forms to group elements where the order of their arrangements is not important or does not differentiate from the very same set of elements picked in a different order.

The concept of combinations is tied to the differents forms to group elements where the order of their arrangements is not important or does not differentiate from the very same set of elements picked in different order.

On the other hand, permutations or variations are sets selected in a specific order and another set with the same element but in different order is considered a different set.

If we have n elements available to pick from in sets of m elements each, there can be C(n,m) different combinations, and it's given by

\displaystyle C(n,m)=\frac{n!}{m!(n-m)!}

Similarly the number of permutations is given by

\displaystyle P(n,m)=\frac{n!}{(n-m)!}

(a) I have n=21 songs to pick from and I want to choose m=8 of them where the order matters, so it's a permutation:

\displaystyle P(21,8)=\frac{21!}{(13)!}=\frac{51,090,942,171,709,440,000}{6,227,020,800}=8,204,716,800

I can make more than 8 billion different setlists

(b) To choose m=4 songs from n=21 songs where the order does not matter, we compute the combination

\displaystyle C(21,4)=\frac{21!}{4!(17)!}=\frac{21\cdot 20\cdot 19\cdot 18\cdot 17!}{4\cdot 3\cdot 2\cdot 1(17)!}

\displaystyle C(21,4)=\frac{143,640}{24}=5,985

I can make almost 6,000 sets of 4 songs

5 0
3 years ago
Using the circle below find the arc length of RPT. round to the nearest hundredth. use pie. NO SPAMS. THANK YOU!!!!!
Masteriza [31]
I like pie it’s very nice to use and i think the length is
6 0
3 years ago
Someone please help me
IgorC [24]

Answer:

44.59

Step-by-step explanation:

49.92*2 = 49.96/2 = 124.90

Tax on that is 124.90*1.071 = 133.7679

Divide that 3 to get average mean cost

133.7679/3 = 44.589

round to 44.59

5 0
3 years ago
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