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galina1969 [7]
4 years ago
8

1. Sam drove to the beach, 160 miles from his home, at 40 miles per hour. He drove home the next day at 20 miles per hour. Calcu

late the total number of hours that Sam spent driving. (hint: Distance = Rate * Time
2. If motocross ace Elizabeth Bash can travel 110 feet per second on her Kawasaki cycle, it would take her seconds for her to travel one mile.

hint* there are 5280 feet per mile
Mathematics
1 answer:
Nady [450]4 years ago
3 0
1-12 hours
2-48 seconds
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WILL MARK BRAINLIEST
ira [324]
3.122

The process to getting this comes in many steps. Firstly, you need to find the angles for JLK and MLJ. To find JLK use the arcsin function using the opposite side and the hypotenuse. 

Arcsin(Opp/Hype) = JLK
Arcsin(.5) = JLK
30 degrees = JLK

This means MLJ = 31 degrees since they add up to 61 degrees. 

Now we need to find the length of LJ, which we can do using the Pythagorean Theorem. 

3^2 + JL^2 = 6^2
9 + JL^2 = 36
JL^2 = 27
JL = \sqrt{27}

Now that we have the angle of MLJ and the length of JL, we can use the tangent function to find MJ.

Tan(angle) = opp/adj
Tan(31) = MJ/\sqrt{27}
\sqrt{27}Tan(31) = MJ
3.122 = MJ
4 0
3 years ago
If the re-expressed regression line is ln y = 8.7 + 0.23x, what is the value of y when x is 12?
Sauron [17]

Answer:

y=11.46

Step-by-step explanation:

y = 8.7 + 0.23x \\ y = 8.7 + 0.23(12)

y = 8.7 + 0.23 \times 12 \\ y = 8.7 + 2.76

y = 11.46

to \: multiply \: 0.23 \times 12 \\ you \: convert \: the \: decimal

= 23 \ \times  12 \div 100 \\  = 276 \div 100

= 2.76

hope I helped

mark as brainliest answer

6 0
3 years ago
Which situation CANNOT be represented by this equation? 6x−7=29
melamori03 [73]
Do you need the answer to the equation, if you do than x=6 bc 6x6=36-7=29
4 0
3 years ago
graph of a cubic polynomial that falls to the left and rises to the right with x intercepts negative 3, negative 2, and 2 Which
Maksim231197 [3]

Answer:

i would say  f(x) = (x-2)(x-3)(x+2) but i could be wrong its a confusing question the way it's worded

Step-by-step explanation:

and i'm sorry if i was wrong

8 0
4 years ago
Read 2 more answers
What is the volume of the figure?<br> Please help!
tangare [24]

First, do edge x edge x edge to get volume of the cube.

Then, do (length x width x h eight) divided by 3 to get the volume of the rectangular pyramid.

3 0
3 years ago
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