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2 years ago

How would i work this out?

Mathematics

1 answer:

Varvara68 [4.7K]2 years ago

3 0

You want to find the number of visits IN BETWEEN 12:30 PM and 6:45 PM

there some visits already recorded before 12:30. These visits are visits that you want to exclude but are included in the TOTAL visits

Before 12:30 the website has 1200 visits and at 6:45 the website has 14000.

You can do 14000-1200 to find the number of visits in the time frame between 12:30 and 6:45

ANSWER 12800 visits

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Can someone help me understand how to do this quadratic math problem

Juliette [100K]

Answer:

put all of the expressions into the same form, such as standard form

Step-by-step explanation:

When you're trying to determine whether one expression is equivalent to another, you need to put both of the expressions into the same form. This will generally require some algebraic manipulation using the rules of equality.

Here, you're given a quadratic in standard form. From what we can see of the one partial answer, some of the choices are in vertex form. To determine if they are equivalent, you can do either of two things ...

Put the given expression into vertex form
Expand the answer choice to put it in standard form

___

<em>For multiple-choice questions</em> of this type, it is often sufficient to look at one or two terms of the different equations. That is usually all it takes to separate a good answer from a bad one.

You can start with the x^2 term. Any answer choice that has an x^2 coefficient different from 1 will be rejected.

Next, you can look at the sign of the x term. Any answer choice that doesn't have a positive x term will be rejected.

Finally, you can look a the constant term. Any answer choice that doesn't have a constant term of +4 will be rejected.

___

As it happens, the given equation is a perfect square, so one equivalent is ...

y = (x +2)^2

_____

When working with quadratics, it can be helpful to memorize a couple of the ways they can be written:

(x +b)^2 = (x^2 +2bx + b^2)

This is a special case of ...

(x +a)(x +b) = x^2 +(a+b)x + ab

3 0

3 years ago

Javier bought a baseball card for 75% of its original shoes how much Javier paid for the baseball card?

Alex Ar [27]

3/4 X 10= $7.50

Because 3/4 is 75%, 10 is the original price. And 75% times 10 is 7.50<span />

7 0

3 years ago

The question I need is question #13. Please provide a step by step answer. Thank You

Jet001 [13]

Answer:

Step-by-step explanation:

We have plane 1 flying SW for 4 hours at a rate of 415 mph. The distance he covers using the d = rt formula for distance, is 415(4) = 160 miles.

We also have plane 2 flying directly east (along the x-axis) for 4 hours at 327 mph. The distance he covers using the d = rt formula for distance, is 327(4) = 1308 miles. The angle in between them at this point is 135 degrees, and what we need to find is the length of the vector connecting the 2 planes. IF this was right triangle trig that distance would be the hypotenuse and we could solve for it using Pythagorean's Theorem. BUT it is NOT a right triangle, so we have to find some other means with which to solve for that length. We will use the Law of Cosines to do this.

$?^2=1660^2+1308^2-2(1660)(1308)cos(135)$ which simplifies a bit to

$?^2=2755600+1712864-(-3070653.624)$

If you add all of that together, you'll get

$?^2=7537117.624$ and you'll take the square root of that to get that the distance between the 2 planes after 4 hours is

2745 miles

4 0

3 years ago

IS THIS RIGHT???????????????????

Mnenie [13.5K]

Answer:

yes it is correct 10% is the answer

3 0

2 years ago

Read 2 more answers

PLEASE HELP FAST. EASY POINTS

MrRa [10]

To find the box to the top left, we can multiple the sides like rectangles. To find the top left box, we can multiply -1 and 0.5y to get -0.5y.

To find the box on the bottom right, we can multiply the sides like rectangles again. To find the bottom right box, we can multiply 24x and 3 to get 72x.

6 0

3 years ago