How do I solve b^2-5b-24=0

Answers

Answer 1

Answer: $b^2-5b-24=0\n \na=1 , \ b=-5, \ c= -24 \n \n \Delta =b^2-4ac = (-5)^2 -4\cdot1\cdot (-24) = 25 +96 =121 \n \nx_(1)=(-b-√(\Delta) )/(2a)=(5-√(121))/(2 )=( 5-11)/(2)=(-6)/(2)=-3$

$x_(2)=(-b+√(\Delta) )/(2a)=(5+√(121))/(2 )=( 5+11)/(2)=(16)/(2)= 8\n \nAnswer: x=-3 \ \ \ or \ \ \ x=8$

Answer 2

Answer: $b^2-5b-24=0\n b^2-8b+3b-24=0\n b(b-8)+3(b-8)=0\n (b+3)(b-8)=0\n b=-3 \vee b=8$

Related Questions

How do I expand this? 3(2y-5)
Classify the expression: 5x + 2.Linear expression Quadratic expression Cubic expression Quartic expression
How many digits will be in the quotient of 588divided by 6 use place value to explain
Which lists all the integer solutions of the inequality |x| < 3?A. 0, 1, and 2 B. 0, 1, 2, and 3 C. –2, –1, 0, 1, and 2 D. –3, –2, –1, 0, 1, 2, and 3
Using PEMDAS (Order of Operations), what is the value of the expression 4+3^2+(4−12)? A. 15. B. 17. C. 13. D. 10.

Marilyn has two credit cards, D and E. Card D has a balance of $691.64, and Card E has a balance of $1,014.22. The minimum monthly payment on Card D is 3.57% of the total balance, and the minimum monthly payment on Card E is 2.51% of the total balance. How much greater is the minimum payment on Card E than on Card D? a. $18.85 b. $8.10 c. $11.24 d. $0.77

Answers

Answer:

D. $ 0.77

Step-by-step explanation:

Given,

In card D,

Balance = $ 691.64,

Percentage of minimum monthly payment = 3.57%,

Thus, the minimum payment = 3.57% of 691.64

$=(3.57* 691.64)/(100)$

$=(2469.1548)/(100)$

≈ $ 24.69,

In card E,

Balance = $ 1,014.22,

Percentage of minimum monthly payment = 2.51%,

Thus, the minimum payment = 2.51% of 1014.22

$=(2.51* 1014.22)/(100)$

$=(2545.6922)/(100)$

≈ $ 25.46,

∵ Minimum payment in card E > Minimum balance in card D,

Thus, the difference between minimum balance in card E and minimum balance in D = 25.46 - 24.69 = $ 0.77

Hence, OPTION D is correct.

the answer is D-$0.77, i need 20 characters for this to be answer so this is all extra.

X+1=3 x-4=5 solve by equation method

Answers

Answer:

X+1=3

x = 3 - 1

x = 2

Check:

2 + 1 = 3

x-4=5

x = 5 + 4

x = 9

Check:

9 - 4 = 5

Answer:

1)x=2

2)x=9

Step-by-step explanation:

x+1=3

=>x=3-1

therefore

x=2

second question

x-4=5

=>x=5+4

therefore

x=9

What value of x makes the equation square root of x-5=4 true?

Answers

$x-5=4 \n \nx=4+5\n \nx=9$

x-5=4
x=9

Therefore it is 9

The equation of a hyperbola is shown. (x-3)^2/81-y^2/144=1
What are the coordinate of the center of the hyperbola?
A.) (3,0)
B.) (0,-30)
C.) (0,3)
D.) (-3,0)

Answers

for equatin (x-h)^2/a^2 - (y-k)^2/b^2 =1 center will be (h,k)
in our problem h=3, k= 0
so center is (3,0)

Pls help it’s 12 POINTS!!!

Answers

Answer:

1=200

2=300

3=400

4=400

Step-by-step explanation:

Each year they get 100 more dollars. If you have any questions, just ask!

11. a model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y=-0.02x^2+2.3x+6, where X is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above the ground. How far horizontally from its starting point will the rocket land?A) 57.5 meters

B) 115 meters

C) 117.55 meters

D) 235.1 meters

Answers

The answer is c have a nice day

Other Questions

How do you write fourteen and seven tenths squared in all three forms?

Two airplanes left the same airport and arrived at the same destination at the same time. The first airplane left at 8:00 a.m. and traveled at an average rate of 496 mph. The second airplane left at 8:30 a.m. and traveled at an average rate of 558 mph. How many hours did it take the first plane to travel to the destination?Let x represent the number of hours that the first plane traveled.Enter an equation that can be used to solve this problem in the first box.Solve for x and enter the number of hours in the second box.

Simplify (7x+3y²) and (4xy²)

Baileys rectangular dog pen for his Irish settler must have an area of 300 square feet. Also the length must be 10 ft longer than the width. Find the dimension of the pen