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DIA [1.3K]
3 years ago
5

What is the ratio cos C?

Mathematics
2 answers:
OLga [1]3 years ago
7 0

Answer:

Roughly, sinC = 15/17

=> AB = 15, BC = 17 => AC = sqrt(17^2-15^2) = 8

=> cos C = AC/BC = 8/17

adelina 88 [10]3 years ago
3 0

Answer:

8/17

Step-by-step explanation:

17² = 15² + adjacent²

adjacent² = 64

adjacent = 8

Cos C = adjacent/hypotenuse

= 8/17

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7. The lifetime of a certain brand of tires is approximately normally distributed, with a
Aleonysh [2.5K]

Answer:

0.0025551

Step-by-step explanation:

Given that:

Mean (m) = 40000

Standard deviation (s) = 2500

P(x < 33,000) :

USing the relation to obtain the standardized score (Z) :

Z = (x - m) / s

Z = (33000 - 40000) / 2500 = - 2.8

p(Z < -2.8) = 0.0025551 ( Z probability calculator)

Probability of Tyre wagering out before mileage limit is reached = 0.0025551

7 0
2 years ago
Javier's fuel tank holds 12 3/4 gallons of gasoline when completely full. He had some gas in the tank and added 10.3 gallons of
GenaCL600 [577]

Answer:

2.45 gallons of gasoline were in the tank before.

Step-by-step explanation:

Consider the provided information.

The tank can hold 12\frac{3}{4} gallons of gasoline when completely full. He had some gas in the tank and added 10.3 gallons of gasoline to fill it completely.

We need to find: How many gallons of gasoline were in the tank before Javier added some?

For this, we need to subtract added gallons of gasoline from the capacity of the tank.

12\frac{3}{4}-10.3=\frac{51}{4}-10.3

=12.75-10.3

=2.45

Hence, 2.45 gallons of gasoline were in the tank before.

6 0
3 years ago
Find the slope (or grade) of the treadmill shown. <br><br> The grade of the treadmill is___%
prisoha [69]

Answer:

grade=15%

Step-by-step explanation:

For 2 ft on x-axis it has elevated 0.3 ft on y-axis

m=0.3/2=0.15 ft

grade=m x 100

grade=15%

6 0
3 years ago
write an equation in point-slope form of the line that passes through the point (-3,6) and has a slope of 5
RSB [31]

Answer:

y=5x + 21

Step-by-step explanation:

y=5x×b

6= -15+b

b=21

5 0
3 years ago
2x + 25x9 +3<br> What would x be for it to be equal
andrey2020 [161]

Answer:

X=144

Step-by-step explanation:

2X+25×9+3=0

2X+288

2X= -288

X= -144

8 0
3 years ago
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