The mid-point formula can be used, which is
Substitutint
(x1,y1)=(-5,3), and
(x2,y2)=(7,-1) we get
Answer:
See below ↓↓
Step-by-step explanation:
<u>A to B</u>
- Avg. speed = Distance covered / Time taken
- Avg. speed = 200 m / 10 s
- Avg. speed = <u>20 m/s</u>
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<u>C to D</u>
- Avg. speed = Distance covered / Time taken
- Avg. speed = (500 - 200) m / (60 - 30) s
- Avg. speed = 300 m / 30 s
- Avg. speed = <u>10 m/s</u>
Answer:
to solve a system of linear equations graphically we graph both equations in the same coordinate system, the solution to the system will be in the point where the 2 lines intersect.
Answer:
P = 0.9544
Step-by-step explanation:
Firs,t we need to standardize 46 and 54 using the following equation:
Where m is the mean and s is the standard deviation for the random variable.
Replacing m by 50 and s by 2, we find that 46 and 54 are equivalent to:
Then, the probability that x is between 46 and 54 is equal to:
P(46<x<54) = P(-2<z<2)
So, using the normal table, we can find the probability as:
P(-2<z<2) = P(z<2) - P(z<-2)
P(-2<z<2) = 0.9772 - 0.0228
P(-2<z<2) = 0.9544
Can you write the full sentence?..