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iren2701 [21]
3 years ago
11

Can anyone help me with these three problems?

Mathematics
1 answer:
Galina-37 [17]3 years ago
3 0

Answer:

the first one is 3.31

Step-by-step explanation:

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Suppose that receiving stations​ X, Y, and Z are located on a coordinate plane at the points ​(6​,2​), ​(negative 2​,negative 4​
marin [14]

Answer:

  (2,-1)

Step-by-step explanation:

A graph is useful here. Points X and Y have coordinate differences of ...

  X -Y = (6, 2) -(-2, -4) = (6+2, 2+4) = (8, 6)

Then the distance between X and Y is ...

  d = √(8² +6²) = √100 = 10

The point 5 units from X and from Y is the midpoint of XY:

  E = (X +Y)/2 = ((6, 2) +(-2, -4))/2 = (4, -2)/2 = (2, -1)

The epicenter is (2, -1).

_____

The graph shows circles of radius 5 around X and Y, and a circle of radius 13 around Z. The circles intersect at the point (2, -1), the epicenter.

5 0
2 years ago
NEED HELP TO SOLVE THESE ASAP!!!!!!!!
Anika [276]
For  question 1
x^7
for question 2
h^9
5 0
3 years ago
How can percent help you understand situations involving money?
Gnoma [55]

If the problem did not give you the percentile it would be confusing. You would not know if they wanted money or just a number!!! So it is pretty important.

3 0
3 years ago
Read 2 more answers
Please help me aspa​
Olegator [25]

Answer:

43 .......................

3 0
3 years ago
cos (x/2) = -sqrt2/2 in (0,360) looking for two values ?? Can someone please help me I can’t seem to figure out how to solve thi
ValentinkaMS [17]

Answer:

135° and 225°

Step-by-step explanation:

basically you want to find the value of x between 0 and 360 in this equation

cos x/2 = -(√2)/2

assume x/2 as n, so

cos n = -(√2)/2

n = 45°

then remember the quadrant system

0-90 1st quadrant, all is POSITIVE

90-180 2nd quadrant, only SIN has positive value

180 - 270 3rd quadrant, only TAN has positive value

270 -360 4th quadrant, only COS positive here.

so if you try to find negative value look into 2nd and 3rd quadrant that related 45° to x-axis (0°or 180°)

so the value of x is

180 - 45 = 135° (2nd quadrant) and

180 + 45° = 225° (3rd quadrant)

8 0
2 years ago
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