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3 years ago

No explanation required

Mathematics

1 answer:

blondinia [14]3 years ago

8 0

<h3>Answer: Yes it is a function.</h3>

Reason:

There are no repeated x values, so each x input leads to exactly one y output. That's why we have a function.

If we had something like (1,18) and (1,12), then the input x = 1 leading to simultaneous outputs y = 18 and y = 12 would mean we wouldn't have a function.

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Observe the Function Below. f(x) = -8x2 + 7x3 + 2x – 5 Is the function a polynomial?

marshall27 [118]

Answer:

Step-by-step explanation:

f(x) = -8x² + 7x³ + 2x - 5

= 7x³ - 8x² + 2x - 5 This meets the definition of a polynomial

4 0

3 years ago

What are the solutions to the quadratic equation 4x2 = 64?

Karolina [17]

<h2>Greetings!</h2>

Answer:

x = −4 and x = 4

Step-by-step explanation:

4x² = 64

Lets get x² on its own. To do this we divide each sides by 4:

x² = 16

Now to get just x, we need to square root this answer:

√x² = √16

x = √16

x = 4

But this can be ±4 as it -4 and 4 squared both give 16.

So your answer is x = −4 and x = 4

<h2>Hope this helps!</h2>

7 0

3 years ago

Read 2 more answers

Pls help. Just need the formula to enter into the "y=" slot. Thank you :)

professor190 [17]

Answer:

I believe its y= $7^{2}$

My thinking:

I think when the slope intercepts the Y line is when it’s called the y-intercepts and that’s basically how got my answer.

Please do correct me if I’m wrong

It’s been a while since I done something like that ( it hasn’t been that long actually, I just forgot a lot of it)

Sorry if I’m wrong, I hope that I at least helped a Little

6 0

3 years ago

Which is a perfect square?A:72B:81C:90D:99

erik [133]

Solution:

A perfect square is a number that can be expressed as the product of an integer by itself or as the second exponent of an integer.

Hence, the number that can be expressed as a product of an integer by itself is;

$81=9^2=9\times9$

Therefore, the perfect square is 81.

OPTION B is correct.

5 0

1 year ago

In mr. B classroom, there are 29 students. Twelve students got a B, one got a C and the rest have A. What percent of the class r

Gennadij [26K]

Answer:

55.172 percent

Step-by-step explanation:

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3 years ago

Read 2 more answers