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ss7ja [257]
3 years ago
14

Hank's speedometer reads 60 miles per hour, but during a road test he finds that he

Mathematics
2 answers:
Juli2301 [7.4K]3 years ago
5 0

Answer:

percentage error = 7.14%

Step-by-step explanation:

Hank's speedometer reads 60 miles per hour, but during a road test he finds the he was actually driving 56 mph.

estimated/ read value = 60 miles per hour

actual value/correct value = 56 miles per hour

error = estimated or read value - correct value/actual value

error = 60 - 56 = 4 mph

percentage error = error / correct value × 100

percentage error = 4/56 × 100

percentage error = 400/56

percentage error = 7.1428571429%

percentage error = 7.14%

skad [1K]3 years ago
4 0

Answer:

-6.6666666666667%

Step-by-step explanation:

Subtract the accepted value from the expiremental value

56 - 60/60 = -4/60

Divide the answer by the accepted value

-4/60 = -6.6666666666667%

Remove the negative symbol

6.6666666666667%, the answer is 6.6666666666667%

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#1: Write the equation of the graphed line. NO SPACES, ALL LOWERCASE. <br> Please help
ivanzaharov [21]

Answer:

Equation of graphed line is \mathbf{y=\frac{2}{3}x-3}

Step-by-step explanation:

We need to write the equation of the graphed line.

The equation will be in slope intercept form y=mx+b where m is slope and b is y-intercept

We need to find slope and y-intercept.

Finding slope

Slope can be found using formula: Slope=\frac{y_2-y_1}{x_2-x_1}

We will use points (0,-3) and (3,2)

Looking at the graph, we get x_1=0, y_1=-3, x_2=3, y_2=-1

Putting values in graph and finding slope

Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{-1-(-3)}{3-0}  \\Slope=\frac{-1+3}{3}  \\Slope=\frac{2}{3}

So, we get slope \mathbf{\frac{2}{3}  }

Finding y-intercept

y-intercept can be found when x is zero.

So, looking at graph, when x =0, y=-3

So, y-intercept is -3

Equation of Line

So, equation of line having slope \mathbf{\frac{2}{3}  } and y-intercept b = -3

y=mx+b\\y=\frac{2}{3}x-3

So, Equation of graphed line is \mathbf{y=\frac{2}{3}x-3}

8 0
3 years ago
Please help me in this assignment.
8090 [49]
Tan(A) = opposite / adjacent
if we call opposite "a" and adjacent "b"
tan(A) = a/b
then...
tan(B) = b/a
because it's on the other angle so "b" is now opposite angle B and "a" is adjacent.

So really you just need to take the reciprocal of the given values.

6. tan(A) = 1.25
reciprocal is flipping the value and using it to divide by 1.

you can keep as decimal , 1/1.25 = 0.8
or change to fraction
1.25 = 5/4

tan(B) = 4/5 or 0.8

7. tan(B) = 0.5
1/0.5 = 2
tan(A) = 2

8. tan(B) = 1
tan(A) = 1


8 0
3 years ago
N:7
Paraphin [41]
This is a 3 to 2 ratio. So in this case you need 180g
4 0
1 year ago
A class is listing things that come in fives. Some of the things on the list are: points on a star, players on a basketball team
viva [34]
Basically multiple answer
5 0
3 years ago
I need help with this one and l also answered the first one but i’m not sure for this three angles
Norma-Jean [14]

Answer:

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