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Morgarella [4.7K]
2 years ago
11

5{-3.4k-7} + {3k+21}

Mathematics
1 answer:
nekit [7.7K]2 years ago
6 0
First step is to do distributive property.
 
so you multiply 5 by -3.4k and -7 

your equation now is -17k-35+(3k+21)
 
Then you add like terms 

add -17k+3k to give you -14k-35+21 
 
then you add like terms again

add -35+21 to give you -14

so now your equation is -14k-14 

So that is your answer simplified 
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7.1x10^-2 as an ordinary number
Sonja [21]
Hey there,

So let's start off with one part of this equation . . . 


10^{-2} would be 0.01.

So, we have 0.01 has our answer (so far).
 
Then we would do 7.1 × 0.01, this would give us  . . .

0.071.

Your correct and final answer would be \boxed{0.071}

Hope this helps you!

~Jurgen
3 0
2 years ago
What is the product (6r-1)(-8r-3)
eimsori [14]
Use the FOIL method (First, Outside, Inside, Last)

6r(-8r) = -48r²
6r(-3) = -18r
-1(-8r) = 8r          (note: two negatives multiplied together = positive answer)
-1(-3) = 3

-48r² - 18r + 8r + 3

Combine like terms:


-48r² - 18r + 8r + 3

-48r² - 10r + 3


-48r² - 10r + 3 is your answer

hope this helps
6 0
2 years ago
Which of the following describes point H? (-3, 3) (3, 3) (-3, -3) (3, -3)
Dominik [7]
H (3,-3)

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3 0
2 years ago
Read 2 more answers
A circular backyard pool has a diameter of 26 feet and is 4 feet deep. One cubic foot of water has a capacity of approximately 7
klasskru [66]
Find the water volume of the pool.  The formula for a vertical cylinder is V = pi*r^2*h, which here is V = pi(13 ft)^2*(4 ft) = 676*pi cubic feet.

Now convert this 676 cu. ft. to gallons:

Mult (676*pi cu ft) by the conversion factor (7.48 gal) / (1 cu ft):

676*pi cu ft     7.48 gal
--------------- * ------------- = 5056*pi gallons (rounded down from 5056.48 pi)
        1             1 cu ft

The cost of filling the pool will be

5056.48*pi gallons        $3
--------------------------- * ------------- = $48 (to the nearest dollar)
        1                           1000 gal
7 0
2 years ago
On september 8, 2004, the genesis spacecraft crashed in the utah desert because its parachute did not open. the 210-kg capsule h
maw [93]
311km/h = 86.389 m/s 
<span>Initial KE </span>
<span>= 0.5 * 210 * 86.389^2 J </span>

<span>work done by force of ground </span>
<span>= F * 0.81 J </span>

<span>0.5 * 210 * 86.389^2 = 0.81 F </span>

<span>F = 967433.58 N </span>

<span>capsule's weight W= 210 * 9.81 = 2060.1 N </span>

<span>F = 469.6 times capsule weight ---answer</span>
6 0
2 years ago
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