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True [87]
3 years ago
6

WILL GIVE BRAINLIEST IF UR RIGHTTT!

Mathematics
2 answers:
Ivanshal [37]3 years ago
8 0

Answer:

-\sqrt{5\\}

Step-by-step explanation:

VMariaS [17]3 years ago
4 0

why did you friend me?

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Carlos is using the distributive property to evaluate the expression 14 (49) by using friendlier numbers. His work is shown belo
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Separating 49 into 40+9
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4 years ago
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The number of bacteria in a refrigerated food product is given by N ( T ) = 22 T 2 − 123 T + 40 , 6 < T < 36 , where T is
antoniya [11.8K]

Answer:

N(T(t)) = 1408t^2 - 385.6t - 105.52

Time for bacteria count reaching 8019: t = 2.543 hours

Step-by-step explanation:

To find the composite function N(T(t)), we just need to use the value of T(t) for each T in the function N(T). So we have that:

N(T(t)) = 22 * (8t + 1.7)^2  - 123 * (8t + 1.7) + 40

N(T(t)) = 22 * (64t^2 + 27.2t + 2.89) - 984t - 209.1 + 40

N(T(t)) = 1408t^2 + 598.4t + 63.58 -  984t - 169.1

N(T(t)) = 1408t^2 - 385.6t - 105.52

Now, to find the time when the bacteria count reaches 8019, we just need to use N(T(t)) = 8019 and then find the value of t:

8019 = 1408t^2 - 385.6t - 105.52

1408t^2 - 385.6t - 8124.52 = 0

Solving this quadratic equation, we have that t = 2.543 hours, so that is the time needed to the bacteria count reaching 8019.

4 0
4 years ago
A radio is on sale for half price. Let y be its original price. Write an expression that tells its sale price.
svetlana [45]

Answer:

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Step-by-step explanation:

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3 years ago
Students were surveyed about birthdays. How many more students were born on Wednesday than friday?
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3 years ago
Which angles are vertical angles?
Fofino [41]

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It would be Angles GFC and EFH.

Think of it like I'm drawing a capital X. Would you consider the top and bottom parts of the X to be the same? Or would you consider the top and left parts to be the same?

The correct answer for this would be that the top and bottom parts of X are the same size. Now, remember that whenever two lines are making an X. this is because the two angles only touch each other in the center point and don't share a side.

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3 years ago
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