All categories

2 years ago

5b 2 −6b−2 is prime TURE OR FALSE!! 100 POINTS PLEASE HELP!!!!

Mathematics

1 answer:

Ivan2 years ago

6 0

The given quadratic expression; 5b² -6b -2 is prime because the discriminant is not a perfect square.

<h3>What is the discriminant of the expression?</h3>

According to the task content; it is required to identify if the expression is prime.

On this note, it follows that the discriminant of the expression can be evaluated as follows;

= 36 -(4× 5 × -2)

= 76.

Hence, the expression is prime since 76 is not a perfect square.

You might be interested in

If A+B+C=180 c) cos A + cos B + cos C = 1+4 sinA/2sinB/2sinC/2

boyakko [2]

Step-by-step explanation:

Hey there!

See explanation on picture.

Hope it helps....

6 0

3 years ago

On a boat, a cabin's window is in the shape of an isosceles trapezoid, as shown below. What is the area of the window?

Luba_88 [7]

Answer:

The area of the window will be equal to 195 sq. inches.

Step-by-step explanation:

On a boat, a cabin's window is in the shape of an isosceles trapezoid.

The longer side parallel side is at the bottom.

The top side of the trapezoid is 10 inches and the height is 15 inches and the base of the triangle formed from the height on the right is labeled 3 inches.

So, the bottom parallel side has length of (10 + 3 + 3) = 16 inches.

Therefore, the area of the window will be equal to $\frac{1}{2}(10 + 16)15 = 195$ sq. inches. (Answer)

7 0

3 years ago

What is the solution to the following system of equations?

Damm [24]

Answer:

(3, - 1 )

Step-by-step explanation:

Given the 2 equations

x - 3y = 6 → (1)

2x + 2y = 4 → (2)

Rearrange (1) expressing x in terms of y by adding 3y to both sides

x = 6 + 3y → (3)

Substitute x = 6 + 3y into (2)

2(6 + 3y) + 2y = 4 ← distribute and simplify left side

12 + 6y + 2y = 4

12 + 8y = 4 ( subtract 12 from both sides )

8y = - 8 ( divide both sides by 8 )

y = - 1

Substitute y = - 1 into (3) for corresponding value of x

x = 6 + 3(- 1) = 6 - 3 = 3

Solution is (3, - 1 )

6 0

3 years ago

Read 2 more answers

Diego takes more than twice as long to assemble a computer as Kenneth does. Kenneth assembles a computer in 24 minutes. If Diego

Anastasy [175]

The answer to this problem is D

6 0

4 years ago

Find the missing side of The Triangle

saul85 [17]

Step-by-step explanation:

By phythagorous theorem,

AC²=AB²+BC²

AC²=36+64

AC²=100

AC=root of 100

AC=10

7 0

3 years ago