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3 years ago

A measurement of 8,452 meters has a lower margin of error than a measurement of 84.52 meters. True or False?

Mathematics

1 answer:

UNO [17]3 years ago

8 0

True, a measurement of 8,452 meters has a lower margin of error than a measurement of 84.52 meters.

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Determine the ratio in which the point (–6, m) divides the join of A(–3, –1) and B(–8, 9). Also, find the value of m.

PSYCHO15rus [73]

Answer:

Ratio = 3 : 2 and value of m = 5.

Step-by-step explanation:

We are given the end points ( -3,-1 ) and ( -8,9 ) of a line and a point P = ( -6,m ) divides this line in a particular ratio.

Let us assume that it cuts the line in k : 1 ratio.

Then, the co-ordinates of P = $( \frac{-8k-3}{k+1},\frac{9k-1}{k+1} )$ .

But, $\frac{-8k-3}{k+1}$ = -6

i.e. -8k-3 = -6k-6

i.e. -2k = -3

i.e. $k = \frac{3}{2}$

So, the ratio is k : 1 i.e $\frac{3}{2} : 1$ i.e. 3 : 2.

Hence, the ratio in which P divides the line is 3 : 2.

Also, $\frac{9k-1}{k+1}$ = m where $k = \frac{3}{2}$

i.e. m = $\frac{\frac{9 \times 3}{2}-1}{\frac{3}{2}-1}$

i.e. m = $\frac{27-2}{3+2}$

i.e. m = $\frac{25}{5}$

i.e. m = 5.

Hence, the value of m is 5.

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2 years ago

Read 2 more answers

4 can go into 56 how many times

Stels [109]

56 / 4 = 14
4 can go into 56 on 14 times...

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2 years ago

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The drama club had a car wash as a fundraiser where they washed a total of 41 vehicles. Members washed

Dimas [21]

Answer:

Solution: (26,15)

Cars washed=26

Trucks washed=15

Step-by-step explanation:

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2 years ago

Solve for x using basic trigonometric ratios.

yuradex [85]

Sine 35 degrees = x / 20

x = sine 35 degrees * 20

x = .57358 * 20

x = 11.4716

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2 years ago

4n+12=4 What does n equal?

solong [7]

Answer:

n = -2

Step-by-step explanation:

4n + 12 = 4

Subtract 12 from both sides.

4n = -8

Divide both sides by 4.

n = -2

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2 years ago