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ivann1987 [24]
3 years ago
12

What are the solutions to the quadratic equation x2 – 16 = 0?

Mathematics
1 answer:
nika2105 [10]3 years ago
4 0
Can you be more specific?
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Please help me find the slope of the line !!
LenaWriter [7]
The slope of the line is 3/2. That would be letter B. You take two points from the graph and subtract them from each other to find the slope. Hope this helps!
3 0
3 years ago
The average hourly charge of plumbers in the Denver area is $84.00 with a standard deviation of $4.00. Assume that the hourly ch
Simora [160]

Answer:

The probability is 0.31

Step-by-step explanation:

In this question, we are tasked with calculating the probability that a random plumber called at Denver will charge an amount greater than $86 given the mean and the standard deviation.

Firstly, we calculate the standard score of $86 using the mean and the standard deviation.

Mathematically;

z-score = (x-mean)/SD

where x = 86, mean = 84 and SD = 4

z-score = (86-84)/4 = 2/4 = 0.5

Hence, we want to calculate P(z ≥ 0.5)

Using standard table

P( (z ≥ 0.5) = 1 - P(z ≤ 0.5) = 1 - ( 0.19146 + 0.5) = 0.30854

To the nearest hundredth = 0.31

5 0
3 years ago
How many calcium ions are in 0.5 mol of CaCl2?
slamgirl [31]
1 Calcium  ion / formula unit times  0.5 moles CaCl2 x 6.02 x 10^23 = 

<span>3.01 x 10^23 Calcium  ions.</span>
3 0
3 years ago
Read 2 more answers
In which quadrant does θ lie if the following statements are true: cos⁡θ&gt;0 and sin⁡θ&gt;0
Papessa [141]

Answer:

First quadrant

Step-by-step explanation:

cosθ > 0 in first/ fourth quadrants

sinθ > 0 in the first/ second quadrants

sinθ and cosθ are both > 0 in the first quadrant

Then θ lies in the first quadrant

6 0
3 years ago
Helpppppppp me pleaseeeeeeee
andreev551 [17]

Answer:

I think its the last one thats not showing if I'm wrong in sorry

3 0
3 years ago
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