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Sav [38]
3 years ago
5

Diego measured the length of an eraser to be 6 cm. The actual length of the eraser is 6.5 cm. Which of these is closest to the p

ercent error for Diego's measurement? Please help!!
Mathematics
1 answer:
vovikov84 [41]3 years ago
7 0

Answer:

7.69%.

Step-by-step explanation:

Percentage error = (0.5/6.5) * 100

= 7.69%.

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A plane is going to fly 300 miles at a planned speed of 530 mph. The flight will have an average headwind of w miles per hour th
vladimir2022 [97]

Answer:

T(100) represents that the plane flies against the wind at 110mph for 0.714 hours

Step-by-step explanation:

Given

w = headwind

T = time

Model:

<em />T(w) = \frac{300}{530 - W}<em> -- This was not properly presented in your question</em>

Required

What does T(110) means

First, we calculate T(110):

Substitute 110 for w in T(w) = \frac{300}{530 - W}

The expression becomes

T(110) = \frac{300}{530 - 110}

T(110) = \frac{300}{420}

T(110) = 0.714<em> -- approximated</em>

<em>T(100) represents that the plane flies against the wind at 110mph for 0.714 hours</em>

7 0
3 years ago
Combine each pair of equations solve the combined equation 3j +14=-5z-10j=5z
ArbitrLikvidat [17]

Given data:

The first equation is 3j +14=-5z.

The second equation is -10j=5z​ .

Add both the equations.

\begin{gathered} (3j+14)+(-10j)=-5z+5z \\ -7j+14=0 \\ 7j=14 \\ j=2 \end{gathered}

Substitute 2 for j in the first equation.

\begin{gathered} 3(2)+14=-5z \\ 20=-5z \\ z=-4 \end{gathered}

Thus, the value of j is 2 and z is -4.

3 0
1 year ago
R-12 evaluate if r= negative 3
GalinKa [24]
If r=-3, then it would be -3-12 which equals -15
5 0
3 years ago
What is the vertex of the function (X) = -x + 71 - 4?
4vir4ik [10]

Answer:

Step-by-step explanation:

f(x) = -x + 71 - 4 is a straight line. It does not have a vertex.

7 0
3 years ago
The angle of parallelogram is 12 less than 5 times the measure of these angle
Y_Kistochka [10]

let one angle be X

so, other angle be 5x-12

ATQ

X+5x-12=180

6x=180-12

6x=168

X=168/6

hence X=28

now,one angle=28

other angle is 5×28-12

= 140-12.

= 128

5 0
3 years ago
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