MATHEMATICS HIGH SCHOOL

25a² - 16b² when a = --2 and b = 3

Answers

Answer 1

Answer:

25a² - 16b²

25*-2² - 16*3²

25*4 - 16*9

100 - 144

= -44

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6 students shared 5 small pizzas equally

Is 290.45 higher than 2867.5

Answers

2867.5 is bigger

Even though they both show 5 numbers, the second one has only one decimal place versus 2 on the first

If you ignore the decimal, your left with
290 vs 2867

2867 is much bigger than 290 so this is the answer

14. An online file storage site offers a payment plan where users can pay for a year membership Intwelve equal payments. If Manny paid $7.95 per month, how much did he pay In full for the year?

Answers

Answer: 95.4

Step-by-step explanation:

What is the answer to 5(3x-2)-(3x+5

Answers

Answer:

The answer is 12x-15

Step-by-step explanation:

This is a simplification question, so

5(3x-2) using distributive property makes it (15x - 10)

-(3x+5) negating 3x+5 gives -3x-5

so 15x-10-3x-5 = 12x-15

Hope this helps!

Joan’s father is 38 years old today. How many days old is he?

Answers

Answer: 13,879 days

If Joan's father is 38 years old today, that means that he was born in 1982. (2020-38=1982).

If we multiply 38 years by 365 days per year, we get 13,870 days.

But we need to take into account leap years, which happen every 4 years! In a leap year, there's an extra day in February. There have been 9 leap years since Joan's father was born.

So, we add 9 days to 13870 days, to get: 13,879 days.

Please give me Brainliest if this helped! :)

Final answer:

Joan's father, who is 38 years old, would be 13,870 days old. This is calculated by multiplying 38 years by 365 days/year.

Explanation:

To calculate how many days old Joan's father is, you simply need to multiply his age in years by the number of days in a year. Since we typically consider a year to have 365 days, the calculation is as follows: 38 years * 365 days/year. The answer, therefore, is 13,870 days. The main concept here is the conversion of units, in this case converting years to days. Remember to always consider the number of units in one when converting.