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Alja [10]
3 years ago
9

(-6)(-2x – 4y); x = 1, y = 3

Mathematics
2 answers:
jarptica [38.1K]3 years ago
8 0
I need help on this one as well
Advocard [28]3 years ago
3 0

Answer:

First, you have to substitute your x and y.

This looks like

(-6)(-2 - 12) because you multiplied (-2)(1) and (-4)(3)

Then, you have to do what's in the parenthesis because of order of operations.

(-6)(-14)

The answer is 84 I believe.

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If f(x) = 1/x + 2/x ,<br> then f<br> (1/3) =
BlackZzzverrR [31]

Answer:

f(1/3) = 9

Step-by-step explanation:

f(x) = 1/x + 2/x

f(1/3) = 1/(1/3) + 2/(1/3)

f(1/3) = 1(3) + 2(3)

f(1/3) = 3 + 6

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4 years ago
Jamie went to Home Depot.She bought 25 bags of soil that cost $9 per bag.She bought 15 pots at $8 each, and she bought 23 bags o
Anna71 [15]

Answer:

Im pretty sure it is $660

Step-by-step explanation:

(25x9)+(15x8)+(23x15)=

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3 0
4 years ago
An emergency room doctor prescribes a certain pain medication to be delivered through an IV drip. She prescribes 800 mL of the
Keith_Richards [23]

Answer:

The number of drips per minute needed to deliver the medication at the prescribed dosage is 50 drips per minute

Step-by-step explanation:

The given parameters are;

The volume of the prescribed medication to delivered through IV = 800 mL

The duration over which the drug is to be delivered = 8 hours

The rate at which the IV delivers the medication = 30 drips/1 mL

800 mL = 800 × 1 mL

Therefore, the total number of drips in 800 mL= 800 mL × 30 drips/mL = 24,000 drips

The rate at which the drug is delivered = 800 mL/(8 hours) = 100 mL/hr = 100/60 mL/minute = 10/6 mL/minute

The total number of drips in 10/6 mL= 10/6 mL × 30 drips/mL = 50 drips

∴ The rate at which the medication needs to be delivered = 10/6 mL/minute = 50 drips/minute

The number of drips per minute needed to deliver the medication at the prescribed dosage of 800 mL/(8 hours) = 10/6 mL/minute = 50 drips per minute.

8 0
3 years ago
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