MATHEMATICS HIGH SCHOOL

I don't have a lot of time this is about to be overdue What are the terms in the expression 2d + 7 + 5f?

2, 7, and 5

d and f

2 and 5

2d, 7, and 5f

Answers

Answer 1
Answer:

Answer:

• d and f

Step-by-step explanation:

• take an example of;

→ ax + by + 1

  • a and b are coefficients
  • x and y are terms
  • 1 is a constant

.

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"Twenty-eight is more than four times another number" can be shown by the inequality 28 > 4n. Select the values of n which could possibly make this a true statement.choose all answers that are correct.....

A. n>7
B.4
C.8 1/3
D7

Answers

Answer:the answer will be 4. and 6.33

Step-by-step explanation:

i did the study island and thats what i got!

if this doest help so sorry.

Final answer:

The correct values of n that make the inequality 28 > 4n a true statement are n>7 and n=7.

Explanation:

The inequality 28 > 4n represents the statement that twenty-eight is more than four times another number. To find the values of n that could make this statement true, we need to solve the inequality. Dividing both sides by 4, we get 7 > n. This means that n can take on any value less than 7, excluding 7 itself. Therefore, the correct values of n are A. n>7 and D. 7.

Learn more about Inequality here:

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A parachutist falls at a speed of about 12 miles per hour. Find this speed in feet per second

Answers

so in 1 hour, the parachutist will fall 12 miles or
12 mi/1hour

convert
1 hour=60 mins
1 min=60 seconds
1 hour=60 times 60 seconds=360 seconds
12 miles per 360 seconds


convert miles to feet
5280 feet per mile
12 miles times 5280=63360 feet

63360/360
do the math and simplify
63360/360=6336/36=176

176 feet per second

Final answer:

The parachutist's speed of 12 miles per hour can be converted to feet per second by using conversion factors (1 mile equals 5280 feet, and 1 hour equals 3600 seconds).

The resultant speed is approximately 17.6 feet per second.

Explanation:

To convert the parachutist's speed from miles per hour to feet per second, utilize the known conversion factors for miles to feet and hours to seconds. Bread down the problem into two conversions: first, convert miles to feet (1 mile is equivalent to 5280 feet).

Next, convert hours to seconds (1 hour is equivalent to 3600 seconds). The given speed is 12 miles per hour: start the conversion by multiplying it by the number of feet in a mile, then dividing that result by the number of seconds in an hour.

Step 1: Convert miles to feet: 12 miles * 5280 feet/mile = 63360 feet

Step 2: Convert hours to seconds: 1 hour/3600 seconds

From Step 1&2, combine the results to find the speed in feet per second:

63360 feet ÷ 3600 seconds = 17.6 feet per second

So, the parachutist is falling at a speed of 17.6 feet per second.

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Iliana’s math grade increased from 65 to 86. Fiona’s math grade increased from 70 to 80. What is the difference, rounded to the nearest whole number, between the approximate percent increases?

Answers

Iliana's math grade increased by 21 which is 32.31%. Fiona's math grade increased by 10 which is 14.29%. To obtain the difference between the percent increases, subtract 14.29 from 32.31. Thus, the difference in percent increases of their math grades is approximately 18%. 

Answer:

18%

Step-by-step explanation:

If AB ← → is parallel to CD ← → , which statment must be true?

Answers

IF AB is parallel to CD , then alternate interior angles and corresponding angles are equal..
A is correct...

Using the factorised trinomial (n-2)(4n-7), prove that there are only two values of n for which 4 n^(2) - 15n + 14 is a prime number.

Answers

4n² - 15n + 14 is always the product of two numbers, for it to be prime number, one of these factors must be either 1 or -1.

Case n - 2 = 1
That would be n = 3
Then 4n² - 15n + 14 = 5 , which is prime.

Case n - 2 = -1
That would be n = 1
Then 4n² - 15n + 14 = 3, which is also prime.

Case 4n - 7 = 1
That would be n = 2 and that makes other factor (n-2) zero so it's not prime

Case 4n-7 = -1
That would be n = 3/2 which is not integer, so 4n² - 15n + 14 will not be interger.

For any other n values, 4n² - 15n + 14 will be composite number since it is product of two factors.

Therefore we are left with n = 1 and n = 3; only two values of n.

A credit card issuer charges an APR of 15.77%, and its billing cycle is 30 days long. What is it periodic interest rate?

Answers

Given:
Billing cycle = 30 days long
APR = 15.77%

There is 365 days in a year.

365 / 30 = 12.17

15.77% / 12.17 = 1.2958% or 1.30%

The periodic interest rate is 1.30%.

Answer:

1.30%

Step-by-step explanation:

I just answered it

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