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Deffense [45]
3 years ago
13

Mr. Duval bought 21 calculators for his classroom. The total cost was

Mathematics
1 answer:
Olenka [21]3 years ago
7 0

Answer:

$6.75 each

Step-by-step explanation:

141.75 decided by the 21 calculators gets a grand total of $6.75 each

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Virty [35]

Answer:

\int\limits^1_0 \int^1_0{z} \, dA

Step-by-step explanation:

\int\limits^1_0\int^1_0 {9-4x^2-5y^2dy} \, dx

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7 0
3 years ago
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julsineya [31]
Option D should be the right answer
5 0
2 years ago
A set of data points has a line of best fit of y = –0.2x + 1.9. What is the residual for the point (5, 1)?
alisha [4.7K]
<span>A. 0.1
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3 0
3 years ago
A tank that holds up 10 gallons. when its active, a drain empties water from the tank at a constant rate, when Jada first see th
Mamont248 [21]

Answer:

-2/3 gallon/minute

Step-by-step explanation:

In three minutes the water volume has decreased by 2 gallons (7 less 5 is 2).  The unit rate of decrease of the amount of water in the tank is thus:

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------------------- = -2/3 gallon/minute

 3 minutes

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2 years ago
Evaluate f(x)=3x-6 when x=2 and x=-4
stiks02 [169]

Answer:

Step-by-step explanation:

Plug in the x

f(2) = 3(-4)-6

2 = -12 - 6

2 = -18

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2 years ago
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