All categories

3 years ago

Explain how to estimate the square root of 1659

Mathematics

1 answer:

Nata [24]3 years ago

7 0

Explanation:

Find the two closest square numbers to 1659.

40*40=1600

41*41=1681

Decide much closer to either 1600 or 1681 is 1659.

If it is exactly halfway between the two numbers, the square root is 40.5.

If it is closer to 1600, the sq rt decimal is between 1 and 4.

If it is closer to 1681, the sq rt decimal is between 6 and 9.

You might be interested in

A particle starts at the point P=(−5,−1,3) when t=0 and moves along a straight line toward Q=(−6,−6,8) at a speed of 9 cm/sec. L

navik [9.2K]

Answer:

Step-by-step explanation:

Given

Particle moves from $P\ (-5,-1,3)\ to\ Q\ (-6,-6,8)$

speed of particle is $v=9\ cm/s$

Unit vector in the direction of vector $\vec{PQ}$ is given by

$\hat{n}=\frac{\vec{Q}-\vec{P}}{|\vec{Q}-\vec{P}|}$

$\hat{n}=\frac{-}{\sqrt{(-1)^2+(-5)^2+(5)^2}}$

$\hat{n}=\frac{}{\sqrt{1+25+25}}$

Now Position of Particle at any time is given by

$\vec{r(t)}=velocity\cdot time\cdot direction$

$\vec{r(t)}=9\cdot t\cdot \frac{}{\sqrt{1+25+25}}$

Parametric vector equation is given by

$x=\frac{-9t}{\sqrt{51}}$

$y=\frac{-45t}{\sqrt{51}}$

$z=\frac{45t}{\sqrt{51}}$

6 0

4 years ago

Pls help i only have 2 minuets left

Sveta_85 [38]

Answer:

14, 3!

Step-by-step explanation:

It is very complicated to explain.

4 0

3 years ago

Two numbers have the ratio of 4:7 if their sum is 143 what are the numbers?

garri49 [273]

Answer:

52:91

Step-by-step explanation:

To find a ratio value you need to think of it more as two numerators that together equal one whole. 4+7 is 11 so that would be the denominator. If the sum is 143, then we divide by 11 since one number is 4/11s of 143, and the other is 7/11s of 143. 143/11=13

now we multiply both:

4(13)=52

7(13)=91

Check:

91+52=143

52/91 simplifies to 4/7 or 4:7

i hope this helps!

3 0

3 years ago

The length of 24 city blocks: 2 m or 2 km

kotegsom [21]

There is about 323ft in a city block. 24*323=7752ft

7752ft to km is about 2.3km

So I would say it is 2km in the choices you gave

6 0

4 years ago

Read 2 more answers

The tables show linear relationships between x and y. Write an equation in slope-intercept form for each relationship.

Alenkinab [10]

The first thing you need to do is calculate the slope. pick 2 of the ordered pairs.

i'll use (1, 4) and (0, 6)

m = (6 - 4)/(0 - 1)
m = (2)/(-1)
m = -2

so the slope is -2. slope intercept form is written as y = mx + b and you have one part of that equation

y = -2x + b

to find b, use one of the selected points. i'll use (0, 6).

(6) = -2(0) + b
6 = b
b = 6

therefore:

y = -2x + 6

6 0

3 years ago