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3 years ago

8

Round 24579 to 3 significant figures

1 answer:

Naya [18.7K]3 years ago

5 0

Answer:

24,600

Step-by-step explanation:

24,579 rounded to 3 significant figures would be 24,600 as we round the 5 to a 6 due to the digit 7 behind it. Significant figures are any non-zero digits or trapped zeros. They do not include leading or trailing zeros. When going between decimal and scientific notation, maintain the same number of significant figures.

Hope this Helps!

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What is the best estimate

xxMikexx [17]

Answer:

D. 8.5

Step-by-step explanation:

The full value of √8 is 8.48528137...

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6 0

2 years ago

For ΔABC with A(–5, –4), B(3, –2), and C(–1, 6), M is the midpoint of

Zarrin [17]

Answer:

The proposition is true, as $\overrightarrow{MN} = (2,5)$ and $\overrightarrow {AC} = (4, 10)$ satisfies the given expression ( $\overrightarrow{MN} = \frac{1}{2}\cdot \overrightarrow{AC}$ ).

Step-by-step explanation:

Vertices of the triangle ABC are located in $A(x,y) = (-5,-4)$ , $B(x,y) = (3,-2)$ and $C(x,y) = (-1, 6)$ , respectively. By definition of midpoint, we get that M and N are located in the following coordinates:

$M(x,y) = \frac{1}{2}\cdot A(x,y) +\frac{1}{2}\cdot B(x,y)$ (Eq. 1)

$M(x,y) = \frac{1}{2}\cdot (-5,-4)+\frac{1}{2}\cdot (3,-2)$

$M(x,y) = \left(-\frac{5}{2},-2 \right)+\left(\frac{3}{2},-1\right)$

$M(x,y) = (-1,-3)$

$N(x,y) = \frac{1}{2}\cdot B(x,y) + \frac{1}{2}\cdot C(x,y)$ (Eq. 2)

$N(x,y) = \frac{1}{2}\cdot (3,-2)+\frac{1}{2}\cdot (-1,6)$

$N(x,y) = \left(\frac{3}{2},-1\right)+\left(-\frac{1}{2},3 \right)$

$N(x,y) = (1, 2)$

Then, the relative vectors between A and C, as well as M and N are, respectively:

$\overrightarrow{AC} = C(x,y)-A(x,y)$ (Eq. 3)

$\overrightarrow{AC} = (-1, 6) -(-5,-4)$

$\overrightarrow {AC} = (4, 10)$

$\overrightarrow {MN} = N(x,y)-M(x,y)$ (Eq. 4)

$\overrightarrow {MN} = (1,2)-(-1,-3)$

$\overrightarrow{MN} = (2,5)$

By getting back into (Eq. 3), we find the following the result after some algebraic handling:

$\overrightarrow {AC} = (4, 10)$

$\overrightarrow{AC} = 2\cdot (2,5)$

$\overrightarrow {AC} = 2\cdot \overrightarrow {MN}$

$\overrightarrow{MN} = \frac{1}{2}\cdot \overrightarrow{AC}$

Which proofs the given affirmation.

6 0

3 years ago

Add (2x^3+5x−16)+(4x^3−10x^2−2x)

creativ13 [48]

Answer:

Hi there!

Your answer is:

6x^3 -10x^2 +3x -16

Step-by-step explanation:

2x^3 +5x -16 +4x^3 -10x^2 -2x

Combine like terms

6x^3 -10x^2 +3x -16

Hope this helps!

6 0

3 years ago

29. Fifty percent of the parallelogram is shaded. What is the area of the shaded region?

Butoxors [25]

Answer:

25 cm

Step-by-step explanation:

the whole parallelograph is 5 times 10 which equals 50. Devide that by 2 and you get 25

5 0

3 years ago

Read 2 more answers

The scale of a map is 1 1/4 inches = 100 miles. On the map, two rivers are 4 1/8 inches apart. What is the distance between the

SVETLANKA909090 [29]

Im not sure but it think its 410 mile long, idk double check by changing it into eighths
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4 0

3 years ago