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Arturiano [62]
4 years ago
11

1. Factorize the following quadratic expressions

Mathematics
1 answer:
lilavasa [31]4 years ago
7 0
i)~a^2+3a+2=(a+1)(a+2)\\\\
ii)~u^2-12u-13=(u+1)(u-13)
You might be interested in
(Plz, im desperate!)A certain bakery has found that the daily demand for bran muffins is 7700/p, where p is the price of a muffi
melisa1 [442]

Answer:

P = 70 cents per muffin

Step-by-step explanation:

It says to find the price when the supply and demand are equal, so you have to set the two equations equal to each other.

7700/p = 3p-100.

It seems to me that the best way to solve this would be to set up a quadratic equation.

If you multiply both sides by p and then subtract 7700, you get the following:

0=3p^2 -100p -7700

I wrote a program to solve this, and I got the answers p= 70 and -36.67.

Obviously, a negative number doesn’t work in this situation, so the answer is 70 cents per muffin. To check this, you can plug it back into the equation:

7700/70=3(70)-100

110=110

8 0
3 years ago
Dave has a three-year college loan for $10,000. The lender charges a simple interest rate of 6 percent. How much interest will h
PSYCHO15rus [73]
I= 10000*3*0.06 I=1800
4 0
3 years ago
Read 2 more answers
CAN SOMEONE PLEASE HELP ME!!!!
love history [14]

Answer:

The balance after the payment is $1263.84.

Step-by-step explanation:

The formula for amount after compound interest is

A=P(1+\frac{r}{n})^{t}

Where, P is principal, r is rate of interest, n is number of time interest compounded in a period, number of periods.

According to the given information,

P=1455.69

r=0.128

n=365

t=45

Put these values in the above formula,

A=1455.69(1+\frac{0.128}{365})^{45}

A\approx 1478.84

The amount after compound interest is $1478.84. Add late fee chages $35 in this amount and subtract the payment of $250. So, the balance amount after payment is

Balance=1478.84+35-250=1263.84

Therefore the balance after the payment is $1263.84.

8 0
4 years ago
Shania had $20 to spend on seven raffle tickets. After buying them she had $6. How much did each raffle ticket cost?
kogti [31]

Answer:

$2

Step-by-step explanation:

Total money Shania was having = $20.

After buying raffle tickets she was having a total of $6.

Thus ,

The money she spent on the raffle tickets = Money she was having initially -

                                                                         Money she was having after

                                                                         purchasing tickets .

                                                                 = $20 - $6

                                                                 = $14.

Thus She spent a total of $14 on tickets .

Now , number of tickets she bought = 7.

So, cost of each ticket = \frac{Money spent}{Number of tickets} = \frac{14}{7}

                                                          = $2.

Thus , each ticket costs $2 for Shania.

7 0
3 years ago
Last question Can anybody help
ludmilkaskok [199]

Answer:

-8/15

Step-by-step explanation:

6 0
3 years ago
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