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sattari [20]
3 years ago
6

When combining like terms what is -10r - 5r put together?

Mathematics
2 answers:
marysya [2.9K]3 years ago
8 0

Answer:

-15r

Step-by-step explanation:

lys-0071 [83]3 years ago
8 0

Answer:

-15

Step-by-step explanation:

it’s very easy you just subtract -10 and 5 but the only difference is if ten is negative you switch from subtracting to adding but leave the negative there and you get -15

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7x^2+3y^2+12x+2y-6=0 Help me find the value of a,b,c and the discriminant number
Mrac [35]

Answer:

b o a h d

Step-by-step explanation:

1*5 3%9 46% &45 that is the answer

7 0
2 years ago
The number of employees per department are normally distributed with a population standard deviation of 198 employees and an unk
cricket20 [7]

Answer:

EBM = +-54.126

Step-by-step explanation:

In this question we have confidence interval to be 80%

The formula to solve this is in the attachment.

Bar X = 1460

Z-alpha/2 = 1.282

Sd = standard deviation = 198 employees

n = 22 departments

After we have inserted all values in to the formula we have:

1460 +-(1.282*198/√22)

= 1460+-(54.12604)

= (1405.87, 1514.126)

The error bounded mean EBM

= +-z-alpha/2 x (sd/√n)

= 1.282 x 198/√22

= 1.282 x 42.22

EBM = +-54.126

6 0
3 years ago
Look online for the growth of the trunk of a tree. Estimate how much time does it take for a water oak to grow one inch in diame
lana66690 [7]

Answer:

Explained

Step-by-step explanation:

The trunk of a tree grows in two different ways, first in height and second in diameter.Usually tree grows one ring per year in diameter. So, counting the number of rings we can determine the age of a tree. Both height and diameter growth does not occur at the same rate. Tree grows more in height than in their diameter. Mature trees usually grows 1 inch in diameter every year.

Water oak gains 24 inches in height  every year and  1.5 inch growth in diameter annually, meaning if we divide 1.5 inches by 12 months we gets 0.125 inches growth monthly. So a water oak tree needs only 8 months to grow 1 inch in diameter.

4 0
3 years ago
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valentinak56 [21]
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3 years ago
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djyliett [7]

Answer:

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Step-by-step explanation:

4 0
3 years ago
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