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2 years ago

Help me with this pls

Mathematics

1 answer:

Soloha48 [4]2 years ago

5 0

1. x = 60 degrees, y = 50 degrees
2. e = 85 degrees
3. f = 158 degrees

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17+m=8 one step equations

lilavasa [31]

Answer:

m= -9

Step-by-step explanation:

17 + m = 8

subtract 17 from both sides

(17-17) + m = 8-17 = -9

m= -9 check answer by replacing m with -9

17 + (-9)= 8

6 0

2 years ago

Water tank is being filled with water. Before water is pumped in, the water level in the tank is 12 inches high. After 20 minute

zhenek [66]

Answer:

D. H = 2.1t + 12

Step-by-step explanation:

Let us assume the t be the time in minutes

And h be the water level

Now before reaching to the equation that need to be used

before this, determine the inches per minute i.e.

= 54 inches - 12 inches

= 42 inches in 20 minutes.

Now for per minute, it would be

= 42 inches ÷ 20 minutes

= 2.1 inches per minute

After this, multiply the inches per minute with the minutes t and add the sale to the beginning value i.e. 12

So the equation is

H = 2.1t + 12

hence, the last option is correct

7 0

2 years ago

10 – 2v = -5v – 50 what is V

Virty [35]

I think it’s v=-20 i showed you my work if that helps :)

4 0

3 years ago

The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs. The d

kozerog [31]

Answer: 49.85%

Step-by-step explanation:

Given : The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs. The distribution of the number of daily requests is bell-shaped ( normal distribution ) and has a mean of 61 and a standard deviation of 9.

i.e. $\mu=61$ and $\sigma=9$

To find : The approximate percentage of lightbulb replacement requests numbering between 34 and 61.

i.e. The approximate percentage of lightbulb replacement requests numbering between 34 and $34+3(9)$ .

i.e. i.e. The approximate percentage of lightbulb replacement requests numbering between $\mu$ and $\mu+3(\sigma)$ . (1)

According to the 68-95-99.7 rule, about 99.7% of the population lies within 3 standard deviations from the mean.

i.e. about 49.85% of the population lies below 3 standard deviations from mean and 49.85% of the population lies above 3 standard deviations from mean.

i.e.,The approximate percentage of lightbulb replacement requests numbering between $\mu$ and $\mu+3(\sigma)$ = 49.85%

⇒ The approximate percentage of lightbulb replacement requests numbering between 34 and 61.= 49.85%

4 0

2 years ago

What does it mean to the rise over run when the slope is an integer?

Brilliant_brown [7]

Answer: I think it’s C.

sorry if it’s wrong❣️.

8 0

2 years ago