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DENIUS [597]
3 years ago
14

PLEASE HELP .!!! ILL GIVE BRAINLIEST.. *EXRTA POINTS* .. DONT SKIP :(( ! ILL GIVE 40 POINTS .

Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
8 0

Answer:

She spent 6 hours hiking.

Step-by-step explanation:

Sorry misread the question.

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a person rides her bike 20 kilometers in .8 hours. At the rate given, how many kilometers can the person reach in 1 hour?​
ValentinkaMS [17]

Answer:2.5km

Step-by-step explanation:

If you cover 20km in 8 hours

Then 1 hour is 20/8=2.5

4 0
4 years ago
Read 2 more answers
Pls help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
charle [14.2K]

Answer:

numbers are 24 and 210

Step-by-step explanation:

the number are : 24(2x2x2x3) and 210 (3x2x5x7)

GCF of 24 and 210 is 6

LCM of 24 and 210 is 840

7 0
3 years ago
Read 2 more answers
The city mayor wants to use the reserved section of a rectangular park for gardening lessons conducted by the city public school
Stels [109]
You can have a lot of ways to solve this problem, but I'm going for solving for the lawn's area directly instead of solving the reserved section and subtracting it from the total area of the whole place. 

First, cut the lawn so that it becomes two shapes: a rectangle, and a triangle. Solve for both areas.

A(r) = lw
A(r) = (14)(16) 
A(r) = 224 square feet

A(t) = bh/2
A(t) = (8)(14) / 2
A(t) = 112 / 2
A(t) = 56 square feet

Add the two areas:

A(r) + A(t) = Area of lawn
224 square feet + 56 square feet = 280 square feet. 

The area of the lawn, therefores, is 280 ft^2.
7 0
3 years ago
Let g be the function given by g(x)=x^2*e^(kx) , where k is a constant. For what value of k does g have a critical point at x=2/
ArbitrLikvidat [17]
G `( x ) =2x * e^{kx}  + k x^{2} *e^{kx} = \\  = xe^{kx}(2 + kx )
2 + k x = 0
k x = -2
k = -2: x = - 2 : 2/3 = - 2 * 3/2
k = - 3
Answer: for k= - 3, the function g ( x ) have a critical point at x = 2/3. 
8 0
3 years ago
An engineering crew ran several tests on a new automobile engine they were designing. The mean fuel consumption was 52.4 miles p
zhenek [66]

Any value which is more than 2 standard deviations away from the mean is considered to be "unusual."  

2 standard deviations above the mean 52.4 mp would be 52.4+2(1.8), or 56; 2 std devs below the mean would be 52.4 - 2(1.8), or 48.8.  Thus, any value larger than 56 or any value smaller than 48.8 would be "unusual."

54.8, 49.1 and 51.3 are not unusual; 56.5 is unusual, because it's greaster than 56.

8 0
3 years ago
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