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Evgesh-ka [11]
4 years ago
7

I need help with this math. please explain​

Mathematics
1 answer:
FrozenT [24]4 years ago
8 0
Mathematics is the science that deals with the logic of shape, quantity and arrangement. Math is all around us, in everything we do.
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How are the angles of an equilateral triangle related?
vfiekz [6]
All the angles and sides are equal.
6 0
3 years ago
Find an equation of the line parallel to the line y=5 and passing through -2,-3
Nutka1998 [239]
Y = 5x + c , ( -2 , -3 )
- 3 = 5 ( - 2 ) + c
c = 7
y = 5x + 7

i am a mathematics teacher. if anything to ask please pm me
3 0
3 years ago
Express angle 37 in radian​
Snezhnost [94]

Answer:

0.646 radians to the nearest thousandth.

Step-by-step explanation:

To convert degrees to radians we multiply by π/180

= 37 * π/180

= 0.20556π radians

= 0.646 radians to the nearest thousandth.

7 0
3 years ago
Identity the slope and y-intercept<br> (-2,-3) (0,5)
kiruha [24]

Answer:

slope (m) = 4

y intercept is -3 and 5

5 0
3 years ago
A researcher wants to see if birds that build larger nests lay larger eggs. He selects two random samples of nests: one of small
True [87]

Answer:

95% confidence interval for the difference between the average mass of eggs in small and large nest is between a lower limit of 0.81 and an upper limit of 2.39.

Step-by-step explanation:

Confidence interval is given by mean +/- margin of error (E)

Eggs from small nest

Sample size (n1) = 60

Mean = 37.2

Sample variance = 24.7

Eggs from large nest

Sample size (n2) = 159

Mean = 35.6

Sample variance = 39

Pooled variance = [(60-1)24.7 + (159-1)39] ÷ (60+159-2) = 7619.3 ÷ 217 = 35.11

Standard deviation = sqrt(pooled variance) = sqrt(35.11) = 5.93

Difference in mean = 37.2 - 35.6 = 1.6

Degree of freedom = n1+n2 - 2 = 60+159-2 = 217

Confidence level = 95%

Critical value (t) corresponding to 217 degrees of freedom and 95% confidence level is 1.97132

E = t×sd/√(n1+n2) = 1.97132×5.93/√219 = 0.79

Lower limit = mean - E = 1.6 - 0.79 = 0.81

Upper limit = mean + E = 1.6 + 0.79 = 2.39

95% confidence interval for the difference in average mass is (0.81, 2.39)

3 0
3 years ago
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