Determine if the following
is a function

Answer:

gjkddjygdbdbexbdbdbdheeh$70

Well, we know standard form of quadratic equation : ax² + bx + c where,

a = Coefficient of x²

b = Coefficient of x

c = Constant term

We also equation for determinant :

⇒ b² - 4ac

Here, if value of determinant i.e. (b² - 4ac) = A perfect Square, then we can understand that the givdn equation is factorisable.

But, if the value of (b² - 4ac) ≠ A perfect square, then it will be considered as "Not factorisable"

Now let's calculate whether the equation is factorisable or not :

Comparing the given equation with ax² + bx + c, we get :

a = 1

b = -3

c = -54

Putting values in the determinant equation :

⇒ (-3)² - 4(1 × -54)

⇒ 9 + 216

⇒ 225

⇒ 15²

So, determinant = A perfect square

That means the given equation is factorisable.

Now let's factorize with by middle term splitting :

⇒ x² - 3x - 54

⇒ x² -(9 - 6)x - 54

⇒ x² - 9x + 6x - 54

⇒ x(x - 9) + 6(x - 9)

⇒ (x + 6)(x - 9) [Required Solution]

Hence, we get our required solution.

Hope this Helps (✿◡‿◡)

Answer:

70 i am 100 percent sure

Step-by-step explanation:

1:10

7     70

Answer:

Help with what?

Step-by-step explanation:

Answer:

69

jk 1740

Step-by-step explanation:

Answer:

well, the required answer is 1740

Step-by-step explanation:

it can be written as

=》 20 × ( 80 + 7 )

=》 1600 + 140

=》 1740

Solution

here, length= 5cm

breath= ?

Perimeter= 86 cm

By the question,

Perimeter (P) = l×b = 86 cm

or, 5cm × b= 86 cm

or, b = 86÷ 5

or, b= 17.2 cm

Answer:

6x-5=12 +5

6x=17 :6

x=2.8333333333

Step-by-step explanation:

prove me wrong

Answer:

6 erasers

Step-by-step explanation:

The pencils and the notebook together cost $2.75, from there you can calculate how many erasers.

1 eraser would bring the total to $3, therefore Denise can buy $1.25 more of erasers which is 5. 3 + 1.25 is $4.25. therefore Denise can buy 6 erasers

Answer:

he can buy 6 erasers

Step-by-step explanation:

because if you add 1.75 plus one and add 0.25 ....6 times it will equal 4.25 i hope this was helpful

Answer:

1

Step-by-step explanation:

(1,1) to (2,2) and (2,2) to (3,3) and so on is (1,1)

Answer:

9 runners

Step-by-step explanation:

Number of runners who started race = 45

Fraction that dropped off in the first half =. 2/3

Fraction of the remaining that dropped of in the second half = 2/5

Number of runners who dropped off in the first half :

(2/3) * 45 = (2 * 45) / 3 = 90 /3 = 30 runners

Runners left = (45 - 30) = 15

Number who dropped off in the second half :

(2/5) * 15 = (2 * 15) / 5 = 30 /5 = 6 runners

Number of runners who finished the race :

(15 - 6) = 9 runners

Answer:

112°

Step-by-step explanation:

according to the question

34°+34°+x=180°

68°+x=180°

x=112°

Answer:

Answer:

x= 1/3 or x=4

Step-by-step explanation:

Let's solve your equation step-by-step.

3x2−13x+4=0

Step 1: Factor left side of equation.

(3x−1)(x−4)=0

Step 2: Set factors equal to 0.

3x−1=0 or x−4=0

x= 1/3or x=4

plz give brainlyest

Answer:

$342.00

Step-by-step explanation:

38 x 90  = 3420

Answer:

72.2

Step-by-step explanation:

38 * 190%

Answer:

The submarine gains 120 feet of elevation per minute.

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Answer:

f (4) = 21

Step-by-step explanation:

the given equation is f (x) = 4x + 5

putting the value of x = 4

we get, f (4) = (4×4) + 5

f (4) = 16 + 5

f (4) = 21

i hope u got it

Answer:

17:14 or 17 to 14

Step-by-step explanation:

since you know there are 14 girls, subtract 14 from 31 and then you'll get 17. since its asking for a ratio of boys to girls not girls to boys, you put boys first, then girls. so your answer will be 17:14

Answer:

3

Step-by-step explanation:

3 * 2 1/4 = 6 3/4

Answer:

129.4

Step-by-step explanation:

Calculation for what's the total length from the front of the first bus to the end of the last

First step is to multiply the given number of buses by the length of each one

Hence,

12.6 meters x 9 = 113.4 meters

Second step

Since there are 8 spaces in between we would multiply the 8 spaces by 2 meters

8 x 2 meters = 16

Now let calculate total length from the front of the first bus to the end of the last

16 + 113.4 meters =129.4

Therefore total length from the front of the first bus to the end of the last will be 129.4

Answer:

option a

Step-by-step explanation:

alternate exterior angle theorem

Answer:

The average speed of the plain was 800 miles/h

Step-by-step explanation:

Step-by-step explanation:

Let x represent the number.

We have 2x + 18 = 3x - 5, therefore x = 23.

The number is 23.

Answer:

the aswer would be B because x<50 therefor the highst posible value for x is 49 and 3x49 is 147 which is less than 150

Let Cesar's, Carmen's and Dalila's amount be represented by x, y and z respectfully.

Since they're money sum up to $95.34, the first expression will be;

x+y+z=95.34

Carmen_y_ is $12.12 less than cesar_x, so the equation will be ;

y=x-12.12

Cesar_x_raised $35more than Dalila_z. So the equation will be;

x=z+35

making z the subject, z=x-35 .

Substituting the Second equation into the first one, we get;

x+x-12.12+z=95.34

Subtracting the third equation into the new equation we get;

x+x-12.12+x-35=95.34

Simplifying, we get 3x- 47.12= 95.34.

3x=142.46

Answer:

please put in the graph

Answer:

pppppppppppppointssssss