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iris [78.8K]
3 years ago
6

Quick can anyone help me please, only the ones who know what they are saying lol!!!!!!!!!!!!!!!! This is attempting #7 of trying

to get this question answered
Determine the value of x. ( no links as answers)

Mathematics
1 answer:
Alecsey [184]3 years ago
3 0

In a 30°-60°-90° triangle, the sides occur in a ratio of 1 to √3 to 2. In this case, <em>x</em> is half the length of the hypotenuse, so <em>x</em> = 4.

Or, using trig,

cos(30°) = <em>x</em>/8

<em>x</em> = 8 cos(30°) = 8 (1/2) = 4

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What is the graph of the equation 4x – 5y = 15?
pshichka [43]
4x - 5y = 15
put x=0, 4(0) - 5y = 15
               -5y = 15
               y = -3
coordinates (0,-3)
put y=0, 4x - 5(0) = 15
              x = 15/4
coordinates (15/4,0)
put y=1, 4x - 5(1) =15
              4x = 20
              x = 5
coordinates (5,1)

Plot the three coordinates to obtain a straight line.
Note: You can also use other points rather from what i mentioned.


Hope it helped!
6 0
4 years ago
Given the vectors a and b, with lengths 21 and 44 respectively, and cosine of the angle between them equal to StartFraction 7 Ov
Liono4ka [1.6K]

Answer:

ab= 49/4

a•b =539

Step-by-step explanation:

7 0
3 years ago
Given a cone with the height of 10 cm and the base radius 9cm.Find the volume of this cone?
mart [117]

Answer:

Step-by-step explanation:

r = 9 cm

h = 10 cm

Volume of cone = (1/3)πr²h

=\frac{1}{3}*3.14*9*9*10\\\\=3.14*3*9*10\\

= 847.8 cubic cm

8 0
3 years ago
Read 2 more answers
in a toy store, the ratio of action figures to teddy bears 6 to 2. if the store has 320 total toys, how many teddy bears are the
lesya692 [45]
6:2
3:1
18:6
24:8
240:80

There are 80 teddy bears
5 0
3 years ago
3.25, 3.0, 2.75, 2.5, 2.25, ...
Morgarella [4.7K]
3.25 - 3 = 0.25
3 - 2.75 = 0.25
2.75 - 2.5 = 0.25
2.5 - 2.25 = 0.25

Since we subtracted those numbers, it means we are decreasing.
Therefore, the answer is decrease by 0.25.
6 0
3 years ago
Read 2 more answers
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