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Solnce55 [7]
3 years ago
11

Help me with this fast

Mathematics
2 answers:
Travka [436]3 years ago
6 0

Answer:

For 60: 120

For 65: 115

For 55: 125

( I mean I could be wrong but thats what I got)

Step-by-step explanation:

Vinvika [58]3 years ago
3 0

Answer: delete this please

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Apply the Pythagorean Theorem to find the distance between points A and C.
Burka [1]

the horizontal distance ( x direction) from A to C is 7 units and

the vertical distance ( y direction) is 5 units

Applying Pythagoras' Theorem to the right triangle

AC² = 7² + 5² = 49 + 25 = 74, hence

AC = \sqrt{74} = 8.6 units ( to 1 dec. place )



4 0
3 years ago
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Lennar borrowed $400 to pay for car repairs she needs to pay it back in two years with simple interest Leonor wants to figure ou
anyanavicka [17]

Answer:

She needs to find out what the benefit would be if she pays it off before the 2 years is up.

Step-by-step explanation:

5 0
3 years ago
A hiker is lost in the forest, but has his cell phone with a weak signal. Cell phones with GPS can give an approximate location
lianna [129]

Answer:

The distance the hiker must travel is approximately 5.5 miles

Step-by-step explanation:

The distance between the two cell phone towers = 22.5 miles

The distance between the hiker's phone and Tower A = 14.2 miles

The distance between the hiker's phone and Tower B = 10.9 miles

The direction of the highway along which the towers are located = East to west

The direction in which the hiker is travelling to reach the highway quickly = South

By cosine rule, we have;

a² = b² + c² - 2·b·c·cos(A)

Let 'a', 'b', and 'c', represent the sides of the triangle formed by the imaginary line between the two towers, the hiker's phone and Tower A, and the hiker's hone and tower B respectively, we have;

a = 22.5 miles

b = 14.2 miles

c = 10.9 miles

Therefore, we have;

22.5² = 14.2² + 10.9² - 2 × 14.2 × 10.9 × cos(A)

cos(A) = (22.5² - (14.2² + 10.9²))/( - 2 × 14.2 × 10.9) ≈ -0.6

∠A = arccos(-0.6) ≈ 126.9°

By sine rule, we have;

a/(sin(A)) = b/(sin(B)) = c/(sin(C))

∴ sin(B) = b × sin(A)/a

∴ sin(B) = 14.2×(sin(126.9°))/22.5

∠B = arcsine(14.2×(sin(126.9°))/22.5) ≈ 30.31°

∠C = 180° - (126.9° - 30.31°) = 22.79° See No Evil

The distance the hiker must travel, d = c × sin(B)

∴ d = 10.9 × sin(30.31°) ≈ 5.5

Therefore, the distance the hiker must travel, d ≈ 5.5 miles.

5 0
3 years ago
Four less than the product of <br> 8<br> and a number equals <br> 7
erica [24]
8n-4=7.................................................
8 0
3 years ago
given the points(-4,8) and (6,-12) determine the mid point of line segment connecting the points determine the distance sepratin
lbvjy [14]

Answer:

midpoint = ( \frac{ - 4 + 6}{2} , \:  \frac{ - 12 + 8}{2} ) \\  = (1, \:  - 2) \\  \\ distance =  \sqrt{ {( - 4 - 6)}^{2} +  {(8  + 12)}^{2}  }  \\  =  \sqrt{500}  \\  = 22.4 \: units

8 0
2 years ago
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