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Julli [10]
3 years ago
6

5. Decide whether each statement is true or false. (1 point each)

Mathematics
1 answer:
muminat3 years ago
8 0

Answer:

T

F

F

F

T

Hope This Helped! :D

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If the coordinates of point A are (-3,2) and the coordinates of point B are (7,6) the x intercept of cd is
Rainbow [258]
You have to use the equation which has just slipped my mind. It say x1-y1 over x2-y2. Then you will find x. I am so sorry this equation name slipped my mind. If I remember I will let you know.
4 0
3 years ago
What is the value of X
kozerog [31]

Answer:

x = 20

Step-by-step explanation:

The triangle is isosceles ( 2 congruent sides )

Hence the base angles are congruent, thus

3x = 60 ( divide both sides by 3 )

x = 20

4 0
3 years ago
Read 2 more answers
In a sample of eight whitefish caught in Yellowknife Bay, the mean arsenic concentration in the liver was 0.32 mg/kg, with a sta
Advocard [28]

Answer:

The 95% confidence interval for the concentration in whitefish found in Yellowknife Bay is (0.2698 mg/kg, 0.3702 mg/kg).

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 8 - 1 = 7

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 7 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 2.3246

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.3646\frac{0.06}{\sqrt{8}} = 0.0502

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 0.32 - 0.0502 = 0.2698 mg/kg

The upper end of the interval is the sample mean added to M. So it is 0.32 + 0.0502 = 0.3702 mg/kg

The 95% confidence interval for the concentration in whitefish found in Yellowknife Bay is (0.2698 mg/kg, 0.3702 mg/kg).

8 0
2 years ago
Linda has a part-time job at the school. She makes between 44.00 and $51.00 a dayWhich is a reasonable estimate of the amount of
Luba_88 [7]

Answer:

$285

Step-by-step explanation:

The mode of 44 and 51 is 47.50 and 47.50 x 6 equals 285

6 0
3 years ago
30 Points please help!! Please explain too!
sergiy2304 [10]
Initial: 200 feet = opp. side
Angle = 17.31, adj. Side = a
So tan (17.31) = opp. Side / adj. Side
tan (17.31) = 200 / a
--> a = 200/tan17.31 = 641.73
When stopped: adj. Still = a
Opp. Side still = 200, angle = 46.41
tan46.41 = 200 / a
--> a = 200/tan46.41 = 190.39
Now subtract those two distances to get the distance traveled from initial to when it stopped:
641.73 - 190.39 = 451.34 feet
3 0
3 years ago
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