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umka2103 [35]
3 years ago
13

What is 3(4a−3)−(6a+5)? (Thank you to everyone for their hard work!)

Mathematics
2 answers:
igomit [66]3 years ago
6 0

Answer:

6a−14

Step-by-step explanation:

Rzqust [24]3 years ago
5 0

Answer:

=6a-14

Step-by-step explanation:

3\left(4a-3\right)-\left(6a+5\right)\\\mathrm{Expand}\:3\left(4a-3\right):\quad 12a-9\\\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b-c\right)=ab-ac\\\mathrm{Simplify}\:3\cdot \:4a-3\cdot \:3:\quad 12a-9\\=12a-9\\-\left(6a+5\right):\quad -6a-5\\=12a-9-6a-5\\\mathrm{Simplify}\:12a-9-6a-5:\quad 6a-14\\=6a-14

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A local trucking company fitted a regression to relate the travel time (days) of its shipments as a function of the distance tra
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Answer:

1.734

Step-by-step explanation:

Given that:

A local trucking company fitted a regression to relate the travel time (days) of its shipments as a function of the distance traveled (miles).

The fitted regression is Time = −7.126 + .0214 Distance

Based on a sample size n = 20

And an Estimated standard error of the slope = 0.0053

the critical value for a right-tailed test to see if the slope is positive, using ∝ = 0.05 can be computed as follows:

Let's determine the degree of freedom df = n - 1

the degree of freedom df = 20 - 2

the degree of freedom df =  18

At the level of significance ∝ = 0.05 and degree of freedom df =  18

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3 years ago
Select the correct product of the exponential expression.<br> 6^4
astra-53 [7]

Answer:

1,296

Step-by-step explanation:

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3 years ago
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2 years ago
You need 320 mL of a 85% alcohol solution. On hand, you have a 60% alcohol mixture. How much of the 60% alcohol mixture and pure
Radda [10]

Answer:

Step-by-step explanation:

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so we also know that:

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If we solve this as a system of equations, we will find that:

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3 years ago
Hello Kids! Its Joe giving out a free brainliest to whoever answers this first with the abc's backwards!
sveticcg [70]

Answer:

Z, Y, X,

W, V,

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