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Licemer1 [7]
3 years ago
7

The rocket that carried the Curiosity Rover to Mars traveled at a speed of 21,000 miles per hour. What is this speed to the near

est mile per second?
Mathematics
2 answers:
Stella [2.4K]3 years ago
3 0
Per second it would be 5.833
Helen [10]3 years ago
3 0

there are 60 minutes per hour and 60 seconds per minute

 60x 60 = 3600 seconds her hour

21000/3600 = 5.83 miles per second


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Assume that two chords in a given circle are congruent. Which of the following must also be true?
o-na [289]

Answer:

If the two chords are congruent, then they must be equidistant from the centre of the circle. 

Ans: D

5 0
3 years ago
Sam the owl is looking down at a 24° angle from the top of a tree that is 10 ft tall, when he spots a bird on the ground. How fa
Liula [17]

Answer:

24.59 feet

Step-by-step explanation:

Let x represent the distance between Sam and the bird.

We have been given that am the owl is looking down at a 24° angle from the top of a tree that is 10 ft tall, when he spots a bird on the ground. We are asked to find the distance between Sam and the bird.

We can see from our attachment that Sam, the bird and angle of depression forms a right triangle with respect to ground. We can see that side 10 ft is opposite side and and side x is hypotenuse for the 24 degree angle.

\text{sin}=\frac{\text{Opposite}}{\text{Hypotenuse}}

\text{sin}(24^{\circ})=\frac{10}{x}

x=\frac{10}{\text{sin}(24^{\circ})}

x=\frac{10}{0.406736643076}

x=24.5859333557

x\approx 24.59

Therefore, the bird is approximately 24.59 feet away from Sam.

8 0
3 years ago
jack drove at an average speed of 47.3 miles per hour for 2.5 hours. how far did he drive? 118.25 49.8 44.8 18.92
Gekata [30.6K]
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8 0
4 years ago
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This is a tough one :/<br> If f(x) = -x + 7 and g(x) = radical of x– 3,<br> what is (f º g)(4)
Jlenok [28]

Answer:

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Step-by-step explanation:

To solve, first plug in 4 as your x value for your g(x) equation.

g(4)=\sqrt{4-3} \\g(4)=\sqrt{1} \\g(4)=1

Next, plug in the value of g(4) into your f(x) equation for x.

f(1)=-1+7\\f(1)=6

6 0
3 years ago
Mr. And Mrs. Jones wanted a fun day with their two children. An adult ticket to Bush Gardens is $20. A child's ticket is 8 dolla
posledela

Answer:

$64

Step-by-step explanation:

2 adults=$40

2 children= $40-16=$24

40+24=$64

5 0
3 years ago
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