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3 years ago

What is 2+2. Im in highschool and this is hard.

Mathematics

2 answers:

sergey [27]3 years ago

6 0

Answer:

Hope it helps.

Murrr4er [49]3 years ago

3 0

Answer:

Step-by-step explanation:

2+2=4

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A graphic designer charges an hourly rate. In July, the only expense is for advertising. The function graphed models the designe

ICE Princess25 [194]

<span>The first one is false, but the other two are true.
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3 years ago

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Can someone explain how to convert a quadratic function in standard form to vertex form using the "complete the square" method?

Arisa [49]

The required steps are explained below to convert the quadratic function into a perfect square.

<h3>What is the parabola?</h3>

It's the locus of a moving point that keeps the same distance between a stationary point and a specified line. The focus is a non-movable point, while the directrix is a non-movable line.

Let the quadratic function be y = ax² + bx + c.

The first step is to take common the coefficient of x². We have

$\rm y = a \left (x^2 + \dfrac{b}{a}x \right) + c$

Add and subtract the half of the square the coefficient of x,

$\rm y = a \left (x^2 + \dfrac{b}{a}x + \dfrac{b^2}{4a^2} \right) - a \times \dfrac{b^2}{4a^2} + c$

Then we have

$\rm y = a \left (x + \dfrac{b}{a} \right)^2 - \dfrac{b^2}{4a} + c$

These are the required step to get the perfect square of the quadratic function.

More about the parabola link is given below.

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3 0

2 years ago

What is the value of x in simplest radical form ?

STALIN [3.7K]

Use Pythagorean theorem
a^2 + b^2 = c^2
12^2 + 35^2 = c^2
144 + 1225 = c^2
1369 = c^2
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37 = c

4 0

3 years ago

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Lucy is tiling her bathroom. She buys white and blue tiles in the

balandron [24]

Answer:

£289.20

Step-by-step explanation:

13:2 = x:16 or 13/2 = x/16

cross multiply: 208 = 2x

simplify: x = 104

16 blue tiles x £2.80 each = £44.80

104 white tiles x £2.35 each = £244.40

44.80 + 244.40 = £289.20

7 0

4 years ago

Please help with 7a and 7b. The picture above is irrelevant to the problem. If possible explain or show your work. Thank you!!!!

ad-work [718]

If the ratio is 4:3 divide the larger can by 4 which in a) is 25 then multiply by 3 to get surface area of smaller can which would be 75 square inches.

In part b) do the same so 150 divided by 4 is 37.5 multiplied by 3 is 112.5 cubic inches.

It doesn't matter if it is surface area or volume you still use the same ratio of 4:3

3 0

3 years ago