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Mariana [72]
3 years ago
12

Find the slope of the line that passes through (5, –6) has a y-intercept of –16.

Mathematics
1 answer:
Serhud [2]3 years ago
5 0

Answer:2 I think

Step-by-step explanation:

(5,-6) (0,-16) -16- -6/0-5 = -10/-5 = 2

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Tarana mailed 20 greetings cards. 9 of them were mailed to USA. What percentage of the cards were mailed to USA?
Elza [17]

Answer:

45%

Step-by-step explanation:

9/20=0.45 (Divide it first), 45/100=45% (45/100 because 100 makes 1 whole -all 20 cards-)

7 0
3 years ago
How would I find a? What formula would I use?
xenn [34]

Answer:

  You can use either of the following to find "a":

  • Pythagorean theorem
  • Law of Cosines

Step-by-step explanation:

It looks like you have an isosceles trapezoid with one base 12.6 ft and a height of 15 ft.

I find it reasonably convenient to find the length of x using the sine of the 70° angle:

  x = (15 ft)/sin(70°)

  x ≈ 15.96 ft

That is not what you asked, but this value is sufficiently different from what is marked on your diagram, that I thought it might be helpful.

__

Consider the diagram below. The relation between DE and AE can be written as ...

  DE/AE = tan(70°)

  AE = DE/tan(70°) = DE·tan(20°)

  AE = 15·tan(20°) ≈ 5.459554

Then the length EC is ...

  EC = AC - AE

  EC = 6.3 - DE·tan(20°) ≈ 0.840446

Now, we can find DC using the Pythagorean theorem:

  DC² = DE² + EC²

  DC = √(15² +0.840446²) ≈ 15.023527

  a ≈ 15.02 ft

_____

You can also make use of the Law of Cosines and the lengths x=AD and AC to find "a". (Do not round intermediate values from calculations.)

  DC² = AD² + AC² - 2·AD·AC·cos(A)

  a² = x² +6.3² -2·6.3x·cos(70°) ≈ 225.70635

  a = √225.70635 ≈ 15.0235 . . . feet

3 0
3 years ago
Solve each equation.<br> 6x2 + 1 = 13
ahrayia [7]
40,681.
40,681. 40,681.
40,681.
8 0
3 years ago
The shadow of a vertical tower is 58 feet long when the angle of elevation of the sun is 36 degrees. What is the height of the t
monitta
42 feet. You have side opposite and one adjacent to the angle therefore you use tan. Then just rearrange for x

6 0
3 years ago
So idk what 4.25 is rounded to the neatest 10 can you help?
s344n2d4d5 [400]

Answer:not the answer person but wouldn't it be 4 cause it's not more then half of the number lol.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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