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Maslowich
3 years ago
7

Item 7

Mathematics
1 answer:
topjm [15]3 years ago
8 0

Answer:8,5 recirpoal is 5,8

Step-by-step explanation:

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Factor Completely: -3x - 9
uranmaximum [27]

Step-by-step explanation:

-3x-9

divide the equation by -1 so that the -1's are taken from -3x and -9. so the -1 goes on the outside of 3x+9

-1(3x+9)

then divide the equation by 3 since 3x and 9 is divisible by 3.

(-1)(3)(3/3x+9/3)

-3(x+3)

Now we can expand again to check the problem

-3 times x=-3x

-3 times 3=-9

and add

-3x-9

Hope that helps :)

7 0
3 years ago
An object is launched vertically in the air at 36.75 meters per second from a 6-meter-tall platform. Using the projectile motion
nasty-shy [4]
I HAVE THE SAME QUESTION
5 0
3 years ago
The Home Depot has two special lawnmowers for sale this year. The electric mower costs $300 each, and the gas-powered mower cost
spayn [35]

Answer:

300a + 450b ≤ 6000

Step-by-step explanation:

Given:

Cost of electric mower = $300

Cost of gas mower = $450

Total number of mower = 25

Cost of total mower is at least = $6,000

Find:

Number of each mower equation

Computation:

Number of electric mower = a

Number of gas mower = b

So,

Equations

a + b ≤ 25 ........ Equation 1

300a + 450b ≤ 6000 .......  Equation 1

4 0
2 years ago
Rob collects data about how many customers enter and leave a store every hour. He records a positive number for customers enteri
makkiz [27]
To answer the question, we utilize the given data and solve for the number of customers left in the store after every 1 hour interval.

Initially, there were 75 customers.

1:00 to 2:00 :        75 + 30 - 12 = 93
2:00 to 3:00   :      93 + 14 - 8   = 99
3:00 to 4:00   :      99 + 18 - 30 = 87
4:00 to 5:00   :  If the store does not accept any more customers except those who are already inside then, all 87 must leave between 4:00 to 5:00 in order to empty out the store by 5:00

ANSWER: (a) 4:00 to 5:00
                 (b) 87 customers
7 0
3 years ago
I need help, in 7-12. Please, someone??
ratelena [41]
20/29
16/34
40/41
21/20
30/40
21/29
5 0
3 years ago
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