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2 years ago

A man wieght 1.7meter hiw much in centimeters

Mathematics

1 answer:

denis-greek [22]2 years ago

5 0

170 centimeters. . .

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Given the points P(2,-1) and Q(-9,-6), what are the coordinates of the point on directed line segment PQ that partitions PQ in t

gayaneshka [121]

ANSWER

$( - \frac{23}{5} , - 4)$

EXPLANATION

Given the points P(2,-1) and Q(-9,-6),the coordinates of the point that partition the directed line segment PQ in the ratio 3:2 is given by

$x = \frac{ mx_2+nx_1}{m + n}$

$y= \frac{ my_2+ny_1}{m + n}$

Where m=3 and n=2

$x = \frac{ 3 ( - 9)+2(2)}{3+ 2}$

$x = \frac{ - 23}{5}$

$y= \frac{ 3( - 6)+2( - 1)}{3 + 2}$

$y= \frac{ - 20}{5} = - 4$

The point is

$( - \frac{23}{5} , - 4)$

4 0

2 years ago

HELP NEEDED PLEASE!

Setler [38]

Answer:

Step-by-step explanation:

$\frac{4}{3} \pi r^{3} =12\pi \\r=\sqrt[3]{9} \\surface area 4\pi r^{2} = 4\pi (\sqrt[3]{9} )^2=54.372 (3dp)$

4 0

2 years ago

Anyone help with these 2 question?

ICE Princess25 [194]

Step-by-step explanation:

1.√2×(-2√9)×(-√2)

= -2×(-2×3)

=12 option a

2. √5×√15×√75

= √5×(√3√5)×(5√3)

= 5×3×5

=75 option b

8 0

2 years ago

Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 99 people

sertanlavr [38]

Answer:

The probability of getting someone in the 18-21 age bracket or someone who agreed to respond $= 0.365$

Step-by-step explanation:

The counts are as follows

Age Group No of people contacted No of refusals Total

18-21 88 8 96

22-29 240 42 282

Total 328 50 378

The probability of getting some one in the age bracket of 18-21 or some one who refused to respond is

$= \frac{96}{378} + \frac{50}{378} - \frac{8}{378} \\= \frac{96+50-8}{378} \\= \frac{138}{378} \\= 0.365$

8 0

2 years ago

Explau why 3.14 us rational but pi is not

saw5 [17]

If 3.14 is rational, why should pi also be rational ?

The answer to your question is: Because pi is not 3.14 .

8 0

2 years ago