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3 years ago

What’s the value of Y?

Mathematics

2 answers:

hichkok12 [17]3 years ago

8 0

Answer:

Step-by-step explanation:

Usimov [2.4K]3 years ago

7 0

It’s definitely 7 .....

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Enter the correct answer in the box. What are the solutions of this quadratic equation? X^2+164=16x Substitute the values of a a

saw5 [17]

Answer:

x = 8 - 10i or 8 + 10i

Step-by-step explanation:

Our equation is given as:

x² + 164 = 16x

x² - 16x + 164 = 0

We solve using Almighty formula

x = -b ± √b² - 4ac/2a

Where : ax² + bx + c

For our Equation

a = 1, b = -16, c = 164

Hence,

x = -(-16) ± √-16² - 4 × 1 × 164/2 × 1

x = 16 ± √256 - 656/2

x = 16 ± √-400/2

Finding the roots

x = 16/2 ± √-400/2

x = 8 ± 20i/2

x = 8 ± 10i

Therefore, the value of x

= 8 - 10i or 8 + 10i

4 0

2 years ago

What is the value of b when the expression-6.2x + b is equivalent to -3.1(2x - 3)

Rudik [331]

Answer:

$- 6.2x + b \equiv - 3.1(2x - 3) \\ - 6.2x + b = - 6.2x + 9.3 \\ b = 9.3$

8 0

2 years ago

HELP PICTURE IS SHOWN

strojnjashka [21]

The answer is D. y=2x^2

5 0

2 years ago

How can the iready test is a real test?

Leona [35]

It isn't a real test. I do believe it helps you with your grade and the classes you'll take next year.

3 0

2 years ago

9) Nancy starts a race at the start line and she is running 3 meters per second. Juan starts the same race 3 meters ahead of Nan

Travka [436]

Given:

Nancy is running 3 meters per second.

Juan starts the same race 3 meters ahead of Nancy but he is going at 2 meters per second.

To find:

The equations for Nancy and Juan.

Solution:

Let x be the number of seconds.

Nancy is running 3 meters per second. So, the total distance covered by Nancy in the race is

$y=3x$

Juan starts the same race 3 meters ahead of Nancy but he is going at 2 meters per second. So, the total distance covered by Juan in the race is

$y=3+2x$

Therefore, the equations of Nancy and Juan are $y=3x$ and $y=3+2x$ respectively.

5 0

3 years ago