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3 years ago

Which of the following points lies on the graph of y=x^2-5?

Mathematics

2 answers:

grandymaker [24]3 years ago

6 0

Answer:

(3, 4)

Step-by-step explanation:

Tamiku [17]3 years ago

5 0

Answer:

(-2,-1)

Step-by-step explanation:

You might be interested in

An online retail company determined that their cost for each day, x, can be determined by the function C(x) = 2x2 – 20x + 80 and

sammy [17]

The number of days the company earns a profit is the second day till the 7th day

<h3>How to determine the number of days the company earns a profit?</h3>

From the question, we have the following functions that can be used in our computation:

Cost function, C(x) = 2x2 – 20x + 80

Revenue function, R(x) = –x2 + 5x + 58

These functions can be properly represented as

Cost function, C(x) = 2x² – 20x + 80

Revenue function, R(x) = –x² + 5x + 58

When the company makes a profit, the revenue of the company exceeds the cost

This means that

R(x) > C(x)

Substitute the known values in the above equation, so, we have the following representation

–x² + 5x + 58 > 2x² – 20x + 80

Evaluate the like terms

–3x² + 25x - 22 > 0

Expand

–3x² + 3x + 22x - 22 > 0

Factorize the inequality

–3x(x - 1) + 22(x - 1) > 0

So, we have

(-3x + 22)(x - 1) > 0

This gives

-3x + 22 > 0 and x - 1 > 0

Evaluate

-3x > -22 and x > 1

Divide

x < 7.3 and x > 1

This can be combined as

1 < x ≤ 7

Hence, the company makes profit from the second day till the 7th day

Read more about profit functions at

brainly.com/question/25638609

#SPJ1

7 0

1 year ago

Suppose the shipping company were packing balls with a diameter of 2 inches instead of cubes. Would the large box hold more ball

Roman55 [17]

Answer:

Step-by-step explanation:

Because the absence of corners allows more space for more balls

8 0

3 years ago

A rectangular prism with a width of 7.4 cm, a length of 8 cm, and a height of 3.2 cm

Mashcka [7]

Answer: 82.88

Step-by-step explanation:

BxHxW

7.4 x 3.2 = xxx

7.4 x 8 = xxx

So, what you'll do is combine both of the sums, and you will get 82.88

3 0

3 years ago

Are these arithmetic sequences:

VladimirAG [237]

Answer:

1. No

2. Yes

3. Yes

4. Yes

Step-by-step explanation:

In 1. the difference between each term is not constant.(it goes up by, 2, 4, 6)

2. The terms increase by the same amount(it all goes up by 3)

3. The terms decrease by the same amount(it all goes down by 5)

4. The terms increase by the same amount(it all goes up by 6)

8 0

3 years ago

What is the awnser to the circled equations?

pshichka [43]

Answer:

$y = - \frac{1}{3}x - 1$

Step-by-step explanation:

We have to write an equation of a line which passes through the given point (-9,2) and is perpendicular to the given straight line y = 3x - 12 ........... (1)

Now, equation (1) is in the slope-intercept form and the slope of the line is 3.

Let, m is the slope of the required line.

So, 3m = -1

{Since, the product of the slopes of two perpendicular straight lines is -1}

⇒ $m = - \frac{1}{3}$

Therefore, the equation of the required line in slope intercept form is

$y = - \frac{1}{3} x + c$ {Where c is a constant}

Now, this above equation passes through the point (-9,2) point.

So, $2 = - \frac{1}{3} \times (-9) + c$

⇒ 2 = 3 + c

⇒ c = - 1

Therefore, the equation of the required straight line is $y = - \frac{1}{3}x - 1$ (Answer)

5 0

4 years ago