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Liula [17]
3 years ago
14

Evaluate v 49t where t = 4.

Mathematics
2 answers:
igor_vitrenko [27]3 years ago
5 0

Answer:

4v49

Step-by-step explanation:

const2013 [10]3 years ago
3 0

Answer:

196

Step-by-step explanation:

49(4) = 196

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What is the slope of the line represented by the equation f(t) =2t-6
VARVARA [1.3K]

Answer:

The slope is 2.

Step-by-step explanation:

The given line has equation: f(t)=2t-6.

This is a linear equation in t.

The slope is the coefficient of the independent variable t.

The coefficient of t in  f(t)=2t-6 is 2.

Therefore the slope is 2.

Alternatively,  f(t)=2t-6 is of the form  f(t)=mt+c, where m=2 is the slope.

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3 years ago
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Step-by-step explanation:

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3 years ago
11. The completion of a chemical reaction is expressed by the equation y = 300 - 4x - XP, where y is
alina1380 [7]

Answer:

The reaction ca occur at 10 degree Celsius or -14 degree Celsius.                                          

Step-by-step explanation:

We are given the following in the question:

The completion of a chemical reaction is expressed by the equation

y = 300 - 4x -x^2

where y is  the number of seconds needed to complete the reaction and x is the temperature in degrees Celsius  at which the reaction occurs.

We have to find the temperature at which the reaction occurs, if the completion time of reaction is 160 seconds.

Putting y = 160

160 = 300 - 4x -x^2\\x^2 + 4x  - 140 = 0\\x^2 + 14x -10x -140 = 0\\x(x+14)-10(x+14)=0\\(x-10)(x+14) = 0\\(x-10) =0, (x+14) =0\\x = 10, x = -14

Thus, the reaction ca occur at 10 degree Celsius or -14 degree Celsius.

5 0
3 years ago
A restaurant chain ordered 3,940 pounds of rice in 20-pounds bags. About how many 20-pounds bags of rice did the chain ordered?
PolarNik [594]

Answer: 197 bags

Step-by-step explanation:

3,940/20=197

3 0
4 years ago
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A student solving for the acceleration of an object has applied appropriate physics principles and obtained the expression a=a1+
egoroff_w [7]

Answer:

a=\frac{3\times 7}{7}+\frac{12}{7}  (First step for obtaining a common denominator for the two fraction)

a=\frac{33}{7}\text{ m/s}^2

Step-by-step explanation:

\text{Given Expression: }a=a_1+\frac{F}{m}

where,

a is acceleration of an object.(Need to calculate)

a_1=3.00\text{ m/s}^2

F=12.0\text{ Kg.m/s}^2

m=7.00\text{ kg}

\text{Substitute }a_1, \text{ F, and m into expression and we get}

a=3+\frac{12}{7}

Now we will simplify above expression for a

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Common denominator is 7. So, we make both denominator 7. We multiply by 7 at top and bottom with 3. We get

a=\frac{3\times 7}{7}+\frac{12}{7}  (First step for obtaining a common denominator for the two fraction)

Now we combine the numerator

a=\frac{21+12}{7}

a=\frac{33}{7}\text{ m/s}^2



3 0
4 years ago
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