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nevsk [136]
3 years ago
7

A hot liquid is placed in a refrigerator to quickly cool down. The temperature of the liquid can be modeled with the exponential

function T=a(b)^m where m is the number of minutes it has been cooling. Based on the graph below, which of the following is closest to the value b for this model?
1) b=0.65
2)b=0.84
3)b=1.28
4)b=2.17

Mathematics
1 answer:
True [87]3 years ago
4 0

Answer:

This is 3

Step-by-step explanation:

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What is the value of w?<br><br> A. 7<br> B. 3.5<br> C. 7square root of three<br> D. 14
Anarel [89]

Answer:

<h3>D. 14.</h3>

\sf{\cos(30)  =  \frac{7 \sqrt{3} }{w} } \\  \sf{ \frac{ \sqrt{3} }{2}  =  \frac{7 \sqrt{3} }{w} } \\  \sf{w =  \frac{7 \sqrt{3} \times 2 }{ \sqrt{3} }  = 14}

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2 years ago
Which expression in equivalent to -3 1/8 - 2 1/2
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a

Step-by-step explanation:

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3 years ago
Use Euler’s method with two steps to estimate y(1) if y(x) is the solution to dy dx = x + y, y(0) = 1. Write your answer in the
tresset_1 [31]

Answer:

1.5

Step-by-step explanation:

The Euler's method is a common approximation method for the solution of differential equations. It can be used to obtain an approximate value of a given function. The Euler's formula is:

y_{n} = y_{n-1} + hF(_{x_{n-1},y_{n-1}})

Therefore, n =1 will give:

y_{1} = y_{0} + hF(x_{0},y_{0})

h is the step size and it is equivalent to \frac{x_{1}-x_{2}}{2} = \frac{1-0}{2}=\frac{1}{2}

F(x_{0},y_{0}) = x_{0} + y_{0} = 0 + 1 = 1

y_{1} = 1 + (0.5)(0+1) = 1 + (0.5)(1) = 1 + 0.5 = 1.5

4 0
3 years ago
Joyce makes bead bracelets and necklaces and sells them to a store. She charges $5.00 for a bracelet, and $8.00 for a necklace.
stira [4]
B. 6 Bracelets, 12 Necklaces
7 0
3 years ago
What is the lateral surface area of the square pyramid below?
den301095 [7]

Answer:

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Step-by-step explanation:

The picture below is the square base pyramid you are referring. The lateral area is adding the area of the 4 triangles in the pyramid.

area of a triangle = 1/2 × b × h

The slant height of the triangle is gotten using Pythagoras theorem

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lateral surface area = 4 × 24/2

lateral surface area = 4 × 12

lateral surface area = 48 inches²

3 0
3 years ago
Read 2 more answers
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