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3 years ago

5

Find the greatest common factor 7x^3a+7x^2a^2

1 answer:

muminat3 years ago

6 0

Answer:

7x^2a

Step-by-step explanation:

7x^3a+7x^2a^2

7x^3a = 7 xxxa

7x^2a^2= 7 xxaa

The common terms are 7xxa

7x^2a

This is the greatest common factor

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Last week the price of apples at a grocery store was $1.20 per pound. Today, the store has

lions [1.4K]

Answer:

$0.54

Step-by-step explanation:

Start by multiplying 4.5 times 1.20. That’s the normal price of the apples when they’re not on sale. $5.40. Move the decimal place back by one and you get 0.54. That’s the total price of the apples.

5 0

3 years ago

A jacket is on sale for 10% off including the discount and 7% tax the sales price of the jacket is $115.56 what is the price of

aev [14]

Answer:

120.00

Step-by-step explanation:

Let x be the original price

The price is 10% off, or we pay 90% of the original price

.9 x

Then we have to pay 7% sales tax

.9x * 7%

.9x * .07

.063x is the tax

Add this to the .9x we have to pay for the jacket

.9x + .063x = .963x

This is the cost of the jacket

.963x = 115.56

Divide each side by.963

.963x/.963 = 115.56/.963

x =120.00

The cost of the jacket before discount and tax is 120.00

5 0

3 years ago

I need help please and thank you

AfilCa [17]

Answer:

Assuming they're similar, 18

Step-by-step explanation:

6*3=18

3 0

4 years ago

Read 2 more answers

Noa drove from the Dead Sea up to Jerusalem, and her altitude increased at a constant rate of 740740740 meters per hour. When sh

Advocard [28]

Answer:

$A=-400 + 740t$

Step-by-step explanation:

Let the initial altitude ( in meters ) = $a_0$ ,

Since, altitude is increasing at a constant rate of 740 meters per hour.

So, the final altitude ( say A ) in meters after t hours = initial altitude + increment in altitude in t hours,

$\implies A = a_0 + 740t$

According to the question,

A = 710 meters, when t = 1.5 hours,

$710 = a_0 + 740(1.5)$

$710 =a_0 + 1110$

$\implies a_0 = 710 - 1110 = -400$

Hence, the required equation that shows the relationship between the altitude and number of hours,

$A=-400 + 740t$

7 0

3 years ago

Read 2 more answers

Factorize:<br>x^4 - 6x^2 - 27

VashaNatasha [74]

x^4 - 6x^2 - 27

Let u = x^2

We know that x^4 = (x^2)^2.

u^2 - 6u - 27

(u - 9)(u + 3)

Now, back-substitite for u.

(x^2 - 9)(x^2 + 3)

The RIGHT SIDE FACTOR is the difference of two squares.

So, x^2 - 9 becomes (x - 3)(x + 3).

(x - 3)(x + 3)^2

Done.

8 0

3 years ago