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yaroslaw [1]
3 years ago
12

Is a flame test qualitative or quantitative test for the identity of an unknown explain?

Mathematics
1 answer:
kolbaska11 [484]3 years ago
6 0
The answer is;
Flame test is a qualitative test".
Flame test is performed for detecting metals in a compound and metals are detected by the color of the flame, and flame color identifies that which metal is this. so this is a qualitative test, different types of metals shows different color of flames.
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Select the four points that appear on the line with the given slope and y-intercept
zysi [14]
I’m pretty sure the Points are B, D, E and F
5 0
3 years ago
The average student-loan debt is reported to be $25,235. A student believes that the student-loan debt is higher in her area. Sh
yulyashka [42]

Answer:

Step-by-step explanation:

We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean

For the null hypothesis,

µ = 25235

For the alternative hypothesis,

µ > 25235

This is a right tailed test.

Since the population standard deviation is not given, the distribution is a student's t.

Since n = 100,

Degrees of freedom, df = n - 1 = 100 - 1 = 99

t = (x - µ)/(s/√n)

Where

x = sample mean = 27524

µ = population mean = 25235

s = samples standard deviation = 6000

t = (27524 - 25235)/(6000/√100) = 3.815

We would determine the p value using the t test calculator. It becomes

p = 0.000119

Since alpha, 0.05 > than the p value, 0.000119, then we would reject the null hypothesis. There is sufficient evidence to support the claim that student-loan debt is higher than $25,235 in her area.

6 0
3 years ago
identify whether the given mathematical sentences below is true or false, then write your reason. If false , write the correct a
11Alexandr11 [23.1K]

Answer:

NARUTO!SASUKE!

Step-by-step explanation:

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6 0
2 years ago
Orlando bought a pair of shoes that was on sale for $30 off. The original price of the shoes was $112. What was the sale price o
Gwar [14]

Step-by-step explanation:

$112. - $30 = $82.00

$82.00

x. .08

= $6.56 sales tax

$82.00 + $6.56 = $88.56 total price after tax

4 0
3 years ago
Solve for u<br> 4u=6.4<br> PLEASE HELP
Ahat [919]
Divide 4 on both sides and u= 6.4/4 which the answer is equal to 1.6
7 0
3 years ago
Read 2 more answers
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