All categories

3 years ago

What is m to the power of 2 minus 11m minus 60 in product/sum method

Mathematics

1 answer:

Nana76 [90]3 years ago

7 0

m^2 -11m -60 = 0

m^2 -11m =60

(m^2 -11m + 121/4) = 361/4

(m - 11/2)^2 = 361/4

m - 11/2 = + or - 19/2

m = 11/2 + 19/2, 11/2 - 19/2

m = 15, -4

---------------------------------------------------

m^2 -11m -60

(11 +- Square root (121 +240))/2

11/2 +- 19/2

m= 15, -4

----------------------------------------------------

m^2 -11m -60

(m - 15) (m + 4)

m = 15, -4

You might be interested in

There were 230 shoppers at an electronics store on opening day. The specials that day allowed 21% of shoppers to receive a free

anastassius [24]

Answer:

a) About 48 of the shoppers, that is $230\frac{21}{100}$ of the shoppers, received a free set of earbuds.

b) About 58 shoppers, that is $\frac{230}{4}$ received $5 off their first purchase.

Step-by-step explanation:

a. About how many shoppers received a free set of earbuds?

21% out of 230. So

$230\frac{21}{100} = 2.3(21) = 48.3$

About 48 of the shoppers, that is $230\frac{21}{100}$ of the shoppers, received a free set of earbuds.

b. About how many shoppers received $5 off their first purchase?

25% out of 230, so:

$230\frac{25}{100} = 230\frac{1}{4} = \frac{230}{4} = 57.5$

About 58 shoppers, that is $\frac{230}{4}$ received $5 off their first purchase.

5 0

3 years ago

In their 1943 meeting at Casablanca, Allied leaders decided to invade

N76 [4]

In their 1943 meeting at Casablanca, Allied leaders decided to invade Italy.

6 0

3 years ago

Exactly 9 years ago, Jeri opened a bank account that earned 2% interest each year. If the account now has $215.12, how much did

MAVERICK [17]

B is the corect aswer

4 0

3 years ago

6x squared+ 4 (x square- 1) Simplify the expression

r-ruslan [8.4K]

i think its
6x4-1 that should be the awnser

5 0

3 years ago

Y=x-4 and -4x-6y=-16

denis-greek [22]

Answer:

x=4

y=0

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers