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3 years ago

9

Suppose that the equation of motion for a particle (where s is in meters and t in seconds) is

1 answer:

Helga [31]3 years ago

8 0

Differentiate equation
v = 10t - 8
Differerentiate again
a = 10

Accelleration will always be 10m/s^-2

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An oak tree is planted when it is 650 centimeters tall. What is this height in meters?

Mashutka [201]

Answer:

It is 6.5 meters

The centimeter practical unit of length for many everyday measurements. A centimeter is equal to 0.01(or 1E-2) meter.

7 0

3 years ago

Factor the expression. 6g^2+11g-35

lisov135 [29]

=(2g+7)(3g-5)
Might be a biz help u.

5 0

3 years ago

Read 2 more answers

if there are 2040 seats in a section of a stadium, 20 seats in the first row, and 4 more seats in each row, how many rows are th

Lorico [155]

2040 = n/2(20+(n-1)4)

4080 = n(20+4n-4)

4080= 20n +4n^2 -4n

1020 = 4n + n^2

n^2 +4n -1020 =0

use common formula (can't write out so just look at answers. sorry)

which gives answers of n=-34 and n=30. since n can only be positive, n=30 so there are 30 rows. I liked that challenge

5 0

3 years ago

Read 2 more answers

B. Translate each statement to an equation using k as the constant of variation.

-Dominant- [34]

Answer:

See Explanation

Step-by-step explanation:

To do this, we will make use of the following rules:

Direct Variation: $a\ \alpha\ b$ => $a = kb$

Inverse Variation: $a\ \alpha\ \frac{1}{b}$ ==> $a = k/b$

Joint Variation: $a\ \alpha\ bc$ ==> $a= kbc$

Direct, then inverse variation: $a\ \alpha\ b\ \alpha\ \frac{1}{c}$ ==> $a= kb/c$

Having highlighted the rules, the solution is as follows:

1. m varies directly to a

$m\ \alpha\ a$

$m =ka$

2. p varies inversely as q.

$p\ \alpha\ \frac{1}{q}$

$p\ = k\frac{1}{q}$

3. $r\ varies$ directly as s and inversely as t.

$r\ \alpha\ s\ \alpha\ \frac{1}{t}$

$r = k\frac{s}{t}$

4. z varies jointly as $e\ and\ f.$

$z\ \alpha \ ef$

$z = kef$

5. F varies directly as the $square\ of\ t.$

$F\ \alpha\ t^2$

$F = kt^2$

6. d varies jointly r and t

$d\ \alpha\ rt$

$d = krt$

7. P is inversely proportional to h.

$P\ \alpha\ \frac{1}{h}$

$P= \frac{k}{h}$

8. P varies directly as V

$P\ \alpha\ V$

$P=kV$

9. d varies directly as the square of t

$d\ \alpha\ t^2$

$d = kt^2$

10. s varies jointly as b and d and inversely as the square L

$s\ \alpha\ bd\ \alpha\ \frac{1}{L^2}$

$s = k\frac{bd}{L^2}$

7 0

3 years ago

A soccer ball is made of 32 pieces of leather: white hexagons and black pentagons. Each black piece borders only with white piec

zlopas [31]

Answer:

24

Step-by-step explanation:

1+3=4

4 divided by 32 is 8

8 white ones

then 8-32 is 24

24 black ones

4 0

3 years ago