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3 years ago

Solve the equation. simplify your answer. 2x(x-4)-3(x+5)=x(1-x)-16

Mathematics

1 answer:

mylen [45]3 years ago

4 0

Answer:

x=6+√33/3,6−√33/3

Step-by-step explanation:

hope this helps

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What is m < 8 if m < 4 = 50° ? A) 50° B) 180° C) 70° D) 40°

icang [17]

Answer:

Step-by-step explanation:

7 0

3 years ago

A newspaper reports the following changes in the temperature of a city over 4 days:

Pie

Answer:

The expression to show the average daily change in temperature can be given by :

⇒ $\frac{2.64-0.22-0.35+0.63}{4}$ °C

Step-by-step explanation:

Changes in the temperature of city as reported by newspaper :

Day 1: 2.64° C

Day 2: $-\frac{2}{9}$ °C

Day 3: -0.35°C

Day 4: $\frac{5}{8}$ °C

The average daily change in temperature can be calculated as

⇒ $\frac{2.64-\frac{2}{9}-0.35+\frac{5}{8}}{4}$ °C

The fractions can be written in decimals

⇒ $\frac{2.64-0.22-0.35+0.63}{4}$ °C

⇒ $\frac{2.7}{4}$ °C

⇒ $0.675\°C\approx 0.68$ °C [Average daily change in temperature.]

6 0

4 years ago

Fifteen more than twice the hours Carla worked last week is the same as three times the hours she worked this week decreased by

lapo4ka [179]

2x-15=3(x-15)
2x-15=3x-45
2x+30=3x
30=x

Let's check this work!

2(30)-15=3(30-15)
60-15=3(15)
45=45

She worked 45 hours each week

*the reason it is 2x-15 and not 15+2x is because "more than" is considered a "turn around word" meaning it is the opposite

3 0

3 years ago

Which of the following is an equivalent expression to -x+5y=15?

8_murik_8 [283]

I think it is b because to me it makes the most sense

7 0

3 years ago

Exercise 2.4.2: Proving statements about rational numbers with direct proofs. About Prove each of the following statements using

IgorLugansk [536]

Answer:

See Explanation

Step-by-step explanation: