All categories

2 years ago

What are the zeros of the polynomial function f(x)=x^2-x-20

Mathematics

1 answer:

Sidana [21]2 years ago

6 0

Answer:

x=5 or x= -4

Step-by-step explanation:

hello :

f(x)=x²-x-20

solve : x²-x-20 =0

(x-5)(x+4)=0

x-5=0 or x+4=0

x=5 or x= -4

You might be interested in

A ratio of angel fish at a store is 5:4. the ratio of angel fish to goldfish is 4:3 . There are 60 clown fish at the pet store

dexar [7]

Answer:

an i oop

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Make up your own multiplication and division problem and solve them

Marysya12 [62]

Step-by-step explanation:

$10.5 \div 5 = 2.1 \\$

$52.3 \times 2 = 104.6$

$82.5 \div 5 = 16.5$

$45 \times 6.5 = 292.5$

7 0

2 years ago

The arm of a steel crane is 62 feet long. When it is fully extended, the crane arm forms a 30 degree angle with a line parallel

yuradex [85]

Answer: The top of the Crane is 31 feet above the ground.

Step-by-step explanation:

When it is fully extended, the crane arm forms a 30 degree angle with a line parallel to the ground. This means that a right angle triangle is formed. The length of the Crane's arm represents the hypotenuse. The horizontal distance represents the adjacent side of the right angle triangle. The distance, h of the top of the Crane from the ground represents the opposite side of the right angle triangle.

To determine h, we would apply

the Sine trigonometric ratio.

Sin θ, = opposite side/hypotenuse. Therefore,

Sin 30 = h/62

h = 62Sin30

h = 62 × 0.5

h = 31 feet

3 0

2 years ago

Solve this equation for x in terms of y: 3x+2y=4

torisob [31]

3x+2y=4
3x=4-2y

Answer: $x = \frac{4-2y}{3}$

4 0

2 years ago

Read 2 more answers

Neveah orders a square pizza. 34 34 of the pizza has pepperoni. 23 23 of the pepperoni also has green peppers. How much of the w

astra-53 [7]

Answer:

1/2

Step-by-step explanation:

Given that:

3/4 of pizza has pepperoni

2/3 of the pizza with pepperoni has green pepper ;

The fraction of the whole pizza that has both pepperoni and green pepper ;

Fraction with pepperoni = 3/4

Fraction of whole with green pepper and pepperoni : 2/3 of 3/4 = 2/3 * 3/4 = (2*3) / (3*4) = 6/12 = 1/2

8 0

2 years ago