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Hitman42 [59]
2 years ago
15

(5a^3-2)(5a^3+2) expand and combine like terms

Mathematics
1 answer:
joja [24]2 years ago
4 0

Step-by-step explanation:

(5a³-2)(5a³+2)

  1. 5a³×5a³+ 5a³×2 - 2× 5a³+ 5a³×2
  2. 5a³+10a³- 10a³ + 10a³
  3. 5a³+10a³ + 10a³-10a³
  4. 15a³ Answer
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A number y added to 2 is greater than y
pochemuha

Answer:

y+2>y

Step-by-step explanation:

Well, first of all. Adding any sum to y makes it greater then the same variable.

Greater than sign is >. Keeping that in mind now add them. y+2>y is gonna be you’re final answer!

8 0
1 year ago
The cost per week of running a boarding house is partly constant and partly
patriot [66]

Answer:

the cost of running the boarding

house for 600 students is N61,000

Step-by-step explanation:

Let C represents cost

K1 represents first constant

K2 represents second constant

C= k1+k2n

3500 = k1 + 25 k2............. Eqn(1)

6000= k1 + 50 k2 .............. Eqn(2)

Subtract eqn(1) from eqn(2)

2500= 25k2

K2= 2500/25

K2= 100

To get k1 from eqn(1)

3500 = k1 + 25 k2

Substitute the value of k2

3500 = k1 + 25 (100)

3500= k1 +2500

K1= 3500- 2500

K1= 1000

The equation connecting them;

C= 1000+ 100n

The cost of running the boarding

house for 600 students is

n= 600

C= 1000+ 100(600)

C= 1000+60000

C= N 61,0000

6 0
2 years ago
A student measured her height to be 51 inches. What is the student's height in feet and inches?
Gemiola [76]

1 foot = 12 inches.

Divide total inches by 12:

51 / 12 = 4.25 feet.

The whole number is the number of feet. Now multiply the decimal portion by 12 to get inches:

0.25 x 12 = 3 inches

51 inches = 4 feet 3 inches

The student is 4 feet 3 inches tall

8 0
3 years ago
Read 2 more answers
Which of these expressions is equivalent to log(25 • 18)?
riadik2000 [5.3K]

Answer: B. log(25) + log(18)

Step-by-step explanation:

Use the rule for the sum of logs: the log of a product is the sum of the logs, which means log(x) + log(y) = log(xy) if they have the same base.

5 0
3 years ago
Ernie Rolph deposits $4500 at 2% annual simple interest for 1 year. How much interest will he earn?
vaieri [72.5K]

Answer: the amount of interest that he would earn is $90.

Step-by-step explanation:

The formula for determining simple interest is expressed as

I = PRT/100

Where

I represents interest paid on the amount of money deposited.

P represents the principal or amount of money deposited.

R represents interest rate on the deposit.

T represents the duration of the deposit in years.

From the information given,

P = $4500

R = 2%

T = 1 year

Therefore,

I = (4500 × 2 × 1)/100

I = $90

8 0
3 years ago
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