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marysya [2.9K]
2 years ago
15

What property is demonstrated by 6 + -6 = 0?

Mathematics
1 answer:
Marianna [84]2 years ago
3 0

Community property of addition because -6 + 6 would equal zero

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Choose the solution set​
yulyashka [42]

Start with

x-8 > -3

Add 8 to both sides:

x > 8-3 \iff x > 5

4 0
3 years ago
Crystal earns $4.00 per hour mowing lawns. how much does crystal earn if she works 2 hours and 30 minutes?
zlopas [31]
10 dollars i got this by finding 4 times 2 is 8 and half of 4 is 2 so it is exactly 10 dollars
7 0
3 years ago
The property tax on a house, t, is directly proportional to the assessed value, v. If the tax on the house with an assessed valu
Brut [27]

Answer:

3150

Step-by-step explanation:

2325/155,000 = 0.015 = 1.5%

210,000 x 1.5% = 210,000 x 0.015 = 3150

8 0
2 years ago
The lengths of pregnancies in a small rural village are normally distributed with a mean of 265 days and a standard deviation of
MakcuM [25]

Answer:

the middle 50% of most lengths of pregnancies ranges between 255.62 days and 274.38 days

Step-by-step explanation:

Given that :

Mean  = 265

standard deviation = 14

The formula for calculating the z score is z = \dfrac{x -\mu}{\sigma}

x = μ + σz

At middle of 50% i.e 0.50

The critical value for z_{\alpha/2} = z_{0.50/2}

From standard normal table

z_{0.25}= + 0.67  or -0.67  

So; when z = -0.67

x = μ + σz

x = 265 + 14(-0.67)

x = 265 -9.38

x = 255.62

when z = +0.67

x = μ + σz

x = 265 + 14 (0.67)

x = 265 + 9.38

x = 274.38

the middle 50% of most lengths of pregnancies ranges between 255.62 days and 274.38 days

3 0
3 years ago
Help please I forgot my notes<br>Need answers asap- it's due in a few hours<br>​
ahrayia [7]

I'm not to sure if I know the other ones but number 12th Is 6

Step-by-step explanation:

Since the two lines intersect at point Q(x,y) the x & y values of both lines must be equal at point Q. so 3x+14=7x-10. Solving for x yields x = 6.

4 0
2 years ago
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