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Flura [38]
3 years ago
8

X squared +x (×-5)-×+7

Mathematics
2 answers:
timama [110]3 years ago
8 0
x^{2} +x(x-5)-x+7 \\ = x^{2} + x^{2} -5x-x+7 \\ =2 x^{2} -6x+7
FromTheMoon [43]3 years ago
7 0
X^2 + x2 - 5x - x +7 = 2x^2 - 6x +7
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Samuel has $2,000 in the bank and owns a car worth $9,000. He also has $10,000 worth of student loans and a $500 credit card bil
guapka [62]
<span>The answer is 500 Because if you $2,000 +$9,000 = 11,000 11,000 - 10,000 - 500 = 500 Do you understand? hope this helped :)</span>
7 0
2 years ago
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Caleb made 6 quarts of trail mix for his camping trip. Each week,he ate 4 pints of the trail mix. How many weeks did Caleb have
mezya [45]

Answer:

3 weeks

Step-by-step explanation:

6 quarts = 12 pints

12 divided by 3 = 4

4 0
3 years ago
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For a specific species of fish in a pond, a wildlife biologist wants to build a regression equation to predict the weight of a f
sashaice [31]

Answer: First of all, we will add the options.

A. Yes, because 3 inches falls above the maximum value of lengths in the sample.

B. Yes, because the regression equation is based on a random sample.

C. Yes, because the association between length and weight is positive.

D. No, because 3 inches falls above the maximum value of lengths in the sample.

E. No, because there may not be any 3-inch fish of this species in the pond.

The correct option is D.

Step-by-step explanation: It would not be appropriate to use the model to predict the weight of species that is 3 inches long because 3 inches falls above the maximum value of lengths in the sample.

As we can see from the question, the model only accounts for species that are within the range of 0.75 to 1.35 inches in length, and species smaller or larger than that length have not been taken into consideration. Therefore the model can not be used to predict the weights of fishes not with the range accounted for.

3 0
3 years ago
Ben sold his small online business for $100,000. The purchaser will pay him $20,000 today, then $20,000 every year for the next
kifflom [539]

Answer:

c. 92,598

Step-by-step explanation:

20000 + 20000/1.04 + 20000/(1.04^2) + 20000/(1.04^3) + 20000/(1.04^4)= 20000 + 19230.77 + 18491.12 + 17779.73 + 17096.08

= 92597.

= 92,598

7 0
2 years ago
A patient is ordered 60 mg/kg/day of an antibiotic to be divided in 3 doses per day. The patient weighs 60 kg. How many mg of dr
Fudgin [204]

Answer:

3600 mg of drug per day.

\text{The amount of drug per dosage}=\text{1200 mg}

Step-by-step explanation:

We have been given that a patient is ordered 60 mg/kg/day of an antibiotic.

Since the weight of the patient is 60 kg, so the dosage of drug per day would be 60 mg times 60.

\text{The dosage of drug per day}=\frac{\text{60 mg}}{\text{ kg}}\times 60\text{ kg}

\text{The dosage of drug per day}=\text{60 mg}\times 60

\text{The dosage of drug per day}=\text{3600 mg}

Therefore, the patient should receive 3600 mg of drug per day.

Since the patient gets 3 doses per day, so dosage of drug per dosage would be amount of drug per day divided by 3.

\text{The amount of drug per dosage}=\frac{\text{3600 mg}}{3}

\text{The amount of drug per dosage}=\text{1200 mg}

Therefore, the amount of drug per dosage would be 1200 mg.

3 0
3 years ago
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