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dlinn [17]
2 years ago
13

1.6y + y - 4/15 y + 1 1/6y = 2 1/3

Mathematics
1 answer:
Helga [31]2 years ago
5 0

Answer:

313

Step-by-step explanation:

fkjdjk falafel Janis g

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Find all the complex square roots of W= 100 (cos 60 + I sin 60). Write the roots in polar form with theta in degrees.
serg [7]

Answer:

2√3+2i

hope it helps

please mark Brainliest

5 0
3 years ago
You purchase 4 large pizzas for lunch on the beach.Each one cost 9.50$. How much do u spend on pizza
MakcuM [25]

Answer:

$38.00

Step-by-step explanation:

You purchase 4 large pizzas.

Each one costs $9.50

Total expenditure on pizza = $9.50 × 4 = $38.00

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2 years ago
Read 2 more answers
A line with a negative slope intersects a horizontal line 3 units above the x-axis. Select each point that can not be the inters
AnnyKZ [126]

Step-by-step explanation:

Since both lines intersect each other 3 units above the x-axis, the y-value of the point of intersection must be 3.

Looking at the options, (-3, 5), (3, -2) and (0, -3) are all invalid points.

6 0
2 years ago
A data set includes 103 body temperatures of healthy adult humans having a mean of 98.1 F and a standard deviation of 0.56 F. Co
Ira Lisetskai [31]

Answer:

The 99​% confidence interval estimate of the mean body temperature of all healthy humans is (97.955F, 98.245F).

98.6F is above the upper end of the interval, which means that the sample suggests that the mean body temperature could be lower than 98.6F.

Step-by-step explanation:

The first step is finding the confidence interval

The sample size is 103.

The first step to solve this problem is finding how many degrees of freedom there are, that is, the sample size subtracted by 1. So

df = 103-1 = 102

Then, we need to subtract one by the confidence level \alpha and divide by 2. So:

\frac{1-0.99}{2} = \frac{0.01}{2} = 0.005

Now, we need our answers from both steps above to find a value T in the t-distribution table. So, with 102 and 0.005 in the t-distribution table, we have T = 2.63.

Now, we need to find the standard deviation of the sample. That is:

s = \frac{0.56}{\sqrt{103}} = 0.055

Now, we multiply T and s

M = T*s = 2.63*0.055 = 0.145

For the lower end of the interval, we subtract the mean by M. So 98.1 - 0.145 = 97.955F.

For the upper end of the interval, we add the mean to M. So 98.1 + 0.145 = 98.245F.

The 99​% confidence interval estimate of the mean body temperature of all healthy humans is (97.955F, 98.245F).

98.6F is above the upper end of the interval, which means that the sample suggests that the mean body temperature could be lower than 98.6F.

5 0
3 years ago
Tell if each shows egual parts or unequeal parts if the parts are equal name them
Masteriza [31]
Equal 1/4 I think sorry if wrong
4 0
3 years ago
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