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Mazyrski [523]
3 years ago
8

Trigonometry, please help thanks

Mathematics
1 answer:
Licemer1 [7]3 years ago
7 0

Answer:

x = 3.25 m

Step-by-step explanation:

First, find the height of the triangle using sin31:

sin 31 = h/9 ---> h = 9sin31 = 4.64 m

Next, we can now solve for x using tan55:

tan 55 = h/x --> x = (4.64 m)/(tan 55) = 3.25 m

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The number of dimes in Kiara's collection is 13 more than 5 times the
Delvig [45]

Answer:

The number of dimes in Kiara's collection is 13 more than 5 times the

number of quarters in her collection. Kiara has 78 dimes in her

collection.

<h3>3) 78 = 5C+13</h3>

is the right answer.

5 0
2 years ago
I am weighed on scales which have a 10% error, that is, the scales show me 10% heavier than my real weight. If I actually weigh
stiks02 [169]
Remember you said the scale shows you 10% heavier.

So that's an increase of 10%

So value = 10% + 100% = 110%

So scale would show  110% of 82

110% of 82

= (110/100)  * 82

= 1.1 * 82

= 90.2

OR

We can simply find 10% of 82 and add it to the original 82.

10% of 82

(10/100) * 82

0.1 * 82 = 8.2

8.2 + 82 = 90.2    Same answer as before.

So scale shows 90.2 kg. 
4 0
3 years ago
Read 2 more answers
The diagram below shows scalene triangle JKL. Triangle J K L. Side L K extends to point H to form exterior angle J K H. Which is
DiKsa [7]

Answer:

Step-by-step explanation:

  • Measure of angle J K H + measure of angle J K L = 180 degrees

True.

  • Measure of angle J K L + measure of angle J L K + measure of angle K J L = 180 degrees

True.  The sum of all interior angles = 180

  • Measure of angle J K H = measure of angle J L K =

Can't tell from info given.  

  • Measure of angle J K L + measure of angle J L K = 90 degrees

Can't tell from info given.

  • Measure of angle K J L = measure of angle K L J

Can't tell from info given.

8 0
3 years ago
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Eliminate 3x+2y=4<br> 8x-3y=-6
laila [671]
Steps:
1. Multiply the first line by 3 and the second by 2
3(3x + 2y= 4)
2(8x -3y=-6)
2. New lines are
9x + 6y= 12
16x + -6y=-12
3. Now add/subtract them
25x + 0= 0
25x=0
4. Divide by 25
X=0

5. To find y, substitute the 0 in the x in one of the equations
9x + 6y= 12
9(0) + 6y= 12
6y= 12
6. Divide by 6, your Y=2
7. X=0, Y=2
7 0
3 years ago
Solve by applying the counting principle. James is choosing a Four-digit Passcode for his smartphone. How many different Passcod
EleoNora [17]

Answer:

10k.

Step-by-step explanation:

1) if for the 1st position can be used 0-9 digits (10 digits), for the 2d - 0-9 digits, for the 3d - 0-9 digits and for the 4th - 0-9 digits, then

2) the required number of pwd is: 10*10*10*10=10⁴=10000.

4 0
2 years ago
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