MATHEMATICS HIGH SCHOOL

-4(y - 2) = 12

Answer ASAP plz

Answers

Answer 1
Answer:

Answer: The answer is -1

Step-by-step explanation:

-4(y - 2) = 12

-4y + 8 = 12

      - 8   - 8

_____________

  -4y  =  4

  ________

  -4        -4

      y = -1

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Use a basic fact and a pattern to find the product 5,000 x 80

Answers

The patter in 5x8. Then add the 3 zeros to the end

There are 950 students at Hanover High School. The ratio of the number of freshmen to all students is 3:10. The ratio of the number of sophomore to all students is 1:2. What is the ratio of the number of freshman to sophomore?

Answers

Answer:

Step-by-step explanation:

There are 950 students at Hanover High School. The ratio of the number of freshmen to all students is 3:10. This means that the number of freshmen is 3/10 × total number of students.

Number of freshmen = 3/10×950 =285 freshmen

The ratio of the number of sophomore to all students is 1:2. This means that the number of sophomore is 1/2 × total number of students.

Number of sophomore = 1/2×950 =475 sophomore

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sophomore.

It becomes 285/475 = 57/95

Let f(x) = x^2 – 81. Find f–1(x).
Can someone double-check what I have?

Answers

For the answer to the question above, if you are just checking your answer, I'll just show the solution. Is it just ok?
f(x) = x2 - 81 
y = x^2 - 81 
x = y^2 - 81 
x + 81 = y^2 
y = ± √(x + 81) 

f⁻¹(x) = ± √(x + 81) answer

Answer is ±√x+81

I hope I helped you with my answer somehow.
I hope this helps you



y=x^2-81


x^2=y+81


x=square root of y+81


f^-1 (x)= square root of x+81

Solve using the Square-Root (x-3)²-49=0

Answers

Answer:

x equals 10 and x equals -4

Step-by-step explanation:

take the square root of (x-3)² and the square root of 49

√(x-3) = x-3

√49 = +7 and -7

substitute the positive and negative 7 in for 'x' and solve

x-3 = 7;   therefore, x = 10

x-3 = -7;   therefore, x = -4

Angle E has what measurement according to the protractor?

Answers

Answer:

Angle E has 120\°

Step-by-step explanation:

we know that

Observing the figure, according to the protractor

Angle B has 30\°

Angle C has 50\°

Angle D has 90\°

Angle E has 120\°

Angle F has 140\°

You arrive in Mexico City with $580. How many pesos can you buy?

Answers

Answer: 11,600 Mexican pesos

Step-by-step explanation:

To determine how many pesos you can buy with $580, you need to know the current exchange rate between the US dollar (USD) and the Mexican peso (MXN). Exchange rates fluctuate, so it's important to check the most up-to-date rate.

Let's assume that the current exchange rate is 1 USD = 20 MXN.

To calculate how many pesos you can buy, you would multiply the amount of dollars you have by the exchange rate:

$580 * 20 MXN/USD = 11,600 MXN

Therefore, with $580, you can buy 11,600 Mexican pesos (MXN). Please note that exchange rates may vary, so it's always a good idea to check the current rate before making any conversions.
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