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Kay [80]
3 years ago
9

**30 points*** PLEASE ASSIST WILL GET BRAINIEST I REALLY NEED HELP!!!

Mathematics
1 answer:
Dafna11 [192]3 years ago
8 0

Answer:

let the equal sides of the triangle be of length "a"  . let the angle between these two sides be " x  ". Then drop a perpendicular from the vertex to the base.  now u have 2 similar triangles  .the angle between the perpendicular and one of the equal sides is now (x/2)  . length of perpendicular = a cos(x/2)  length of base = 2a sin(x/2)  . area of triangle = (1/2) 2sin(x/2) cos(x/2) a-square  

= (1/2) (sin x) a-square

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Charlie reads quickly . He reads 1and3/7 pages every 2/3 minutes.How many pages does he read pre minute?
SVETLANKA909090 [29]
Hello there!

First, we need to admit that math is a hard subject. So, how do we handle hard stuff? We find an easy way. Right?

Well same goes here. They give the fractions to drive us crazy. Let's find the easiest way...

The easiest way is to turn them into decimals.
1 3/7 = 1.42 which is the amount of pages he reads
2/3 = 0.67 minute.

The are asking us how many pages does he reads per minute.

So we gonna say:
Charlie reads 1.42 pages ......> 0.67
Charlie reads x pages.............> 1minute

Cross multiply

0.67 * x = 1 * 1.42
0.67x = 1.42
x = 1.42/0.67
x = 2.11

So, Charlie reads 2.11 pages in 1 minute.


I hope this helps. Please let me know if you have questions about the answer.

Thanks!


5 0
3 years ago
Help me please!!!!!!!!
kompoz [17]

Answer:

The answer is A

Mean: 2

Median: 1

Step-by-step explanation:

3 0
3 years ago
PLS HELP IM TIMED!!
yanalaym [24]

Answer:

A) 150°

Step-by-step explanation:

Hope I helped you

3 0
3 years ago
Read 2 more answers
2. Calculate the total cost, including 5.75% sales tax, of a $169.99
8_murik_8 [283]

Answer:

$179.76

Step-by-step explanation:

We can calculate the total cost as follows.  The 1.00 represents the before-tax cost of the dehumidifier and the 0.0575 the 5.75% sales tax:

Total cost of dehumidifier = (1.00+0.0575)($169.99) = $179.76 (to the nearest

                                                                                                                     cent()

7 0
3 years ago
The scale on a map is 1 cm: 60 km. How many kilometers are represented by 2.5 centimetres on the map
Yanka [14]

Answer:

the answer is 150

Step-by-step explanation:

60 x 2.5 = 150

8 0
3 years ago
Read 2 more answers
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