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Mademuasel [1]
3 years ago
7

I need help please! If you do know the answer help me understand

Mathematics
1 answer:
koban [17]3 years ago
5 0

Answer:

1017.4 m³

Step-by-step explanation:

Volume of cone V = (1/3)πr²h

pi = 3.14

r = 9 and r² = 81 m²

h = 12 m

V = (1/3)*3.14*81*12

V = 1017.36 rounded 1017.4 m³, which is the first answer.

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I need help I don’t know how to do this
IgorLugansk [536]

Answer:

PL and LM

Step-by-step explanation:

The definition of perpendicular is two lines that create a 90 degree angle. There are a lot of those in a rectangular prism. One of them is PL and LM, because they intersect to create a right angle.

7 0
1 year ago
With Obesity on the rise, a Doctor wants to see if there is a linear relationship between the Age and Weight and estimating a pe
Romashka [77]

Answer:

112.569 ( D )

Step-by-step explanation:

Applying the estimated Regression Equation

y = b1X1 + b2X2 + a

b1 = ((SPX1Y)*(SSX2)-(SPX1X2)*(SPX2Y)) / ((SSX1)*(SSX2)-(SPX1X2)*(SPX1X2)) = 596494.5/635355.88 = 0.93884

b2 = ((SPX2Y)*(SSX1)-(SPX1X2)*(SPX1Y)) / ((SSX1)*(SSX2)-(SPX1X2)*(SPX1X2)) = 196481.5/635355.88 = 0.30925

a = MY - b1MX1 - b2MX2 = 149.25 - (0.94*61.31) - (0.31*193.88) = 31.73252

y = 0.939X1 + 0.309X2 + 31.733

For x1 ( age ) =39, and  x2(weight) =143

y = (0.93884*39) + (0.30925*143) + 31.73252= 112.569

where

Sum of X1 = 981

Sum of X2 = 3102

Sum of Y = 2388

Mean X1 = 61.3125

Mean X2 = 193.875

Mean Y = 149.25

attached is the Tabular calculation of the required values needed for estimated regression equation

8 0
2 years ago
What's 1 and 2/3 times 1 and 1/3?
kari74 [83]
<span>1 and 2/3 time 1 and 1/3 is 2.22222222222 which rounds to 2.</span>
6 0
2 years ago
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Please help me ASAP <br><br><br><br> What is 7/16 x 1/2
Alja [10]

Answer: 7/32

Step-by-step explanation:

Multiply straight across the numerator and do the same for the denominator.

7x1=7 (numerator)

16x2=32 (denominator)

Answer is 7/32

5 0
2 years ago
The number of bacteria, b, in a refrigerated food is given by the function b(t) = 15t2 − 60t + 125, where t is the temperature o
s344n2d4d5 [400]
The answer of the above is
7 0
3 years ago
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