All categories

3 years ago

SOMEONE PLEASE DO THIS

Mathematics

1 answer:

Triss [41]3 years ago

7 0

Hola mate

I don't know the answer but i will solve for you later.

You might be interested in

Can i get some help thanks

inna [77]

Answer:

9300 maybe

Step-by-step explanation:

7 0

3 years ago

Explain how you could use estimation to get an appoximate answer for the expression below. (11.6+7.3) - (6.2 x 2.1)

Kruka [31]

Answer:

(11.6+7.3) - (6.2 × 2.1)

(18.9)-(13.02)

= 149.1

8 0

2 years ago

2x2 – 9x + 2 = –1

Reika [66]

Answer:

C) The discriminant is greater than 0, so there are two real roots

Step-by-step explanation:

<u>Discriminant</u>

$b^2-4ac\quad\textsf{when}\:ax^2+bx+c=0$

$\textsf{when }\:b^2-4ac > 0 \implies \textsf{two real roots}$

$\textsf{when }\:b^2-4ac=0 \implies \textsf{one real root}$

$\textsf{when }\:b^2-4ac < 0 \implies \textsf{no real roots}$

$2x^2-9x+2=-1$

$\implies 2x^2-9x+3=0$

$\implies a=2, b=-9, c=3$

$\begin{aligned}b^2-4ac &=(-9)^2-4(2)(3)\\& =81-24\\&=57 > 0\implies \textsf{two real roots}\end{aligned}$

5 0

2 years ago

Solve the inequality 5(2x + 1) < 10.

ivann1987 [24]

Answer:

A is the answer

Step-by-step explanation:

5(2x+1)<10

10x+5<10

-5 -5

____________

10x<5

—— —-

10 10

———————-

x < 1/2

7 0

3 years ago

Read 2 more answers

Find the greatest number which divides 6168, 2447 and 3118 leaving the same remainder in each case.

SSSSS [86.1K]

let the greatest number be a and remainder be x. And let the whole number result of the division be b, c and d. So we have

ab + x = 2447............(1)

ac + x = 3118...............(2)

ad + x = 6168.............(3)

Subtracting (2) - (1) gives:-

ac - ab = 671

a(c - b) =671

Now 671 = 61 * 11 so 61 could be the value of a

Checking:- 2447 / 61 = 40 remainder 7 , 3118 / 61 = 51 remainder 7

and 6168 / 61 = 101 remainder 7

Answer 61

5 0

3 years ago