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Paha777 [63]
3 years ago
7

H(x) = x2 + 1 k(x) = x – 2 (h + k)(2

Mathematics
2 answers:
Mandarinka [93]3 years ago
6 0

(h + k)(2) = 5

(h - k)(3) = 9

evaluate 3h(2) + 2k(3) = 17

ratelena [41]3 years ago
6 0

Answer: 5

Step-by-step explanation:

Given h(x) = x²+1 and k(x) = x-2

h(x)+k(x) = (x²+1)+(x-2)

h(x)+k(x) = x²+x-1

To get (h+k)(2), we will substitute x=2 into the resulting function to give

(h+k)(2) = 2²+2-1

(h+k)(2) = 6-1

(h+k)(2) = 5

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Yo plz help I suck at Pythagoras theoreom >:(
dybincka [34]

Answer:

Step-by-step explanation:

you didn't put the problem you are stuck on here, but i am willing to help you out in understanding Pythagorean theorem!

pythagorean theorem helps to solve for a side of a right triangle! no matter which two sides you are given in the problem!

the formula for this is

a^2 + b^2 = c^2

to solve for it, you plug in the two sides you have. the most simple is the two sides that are not the hypotenuse. the hypotenuse is the longest side, which is also not connected to another side by a right angle.

you should then plug those numbers into a and b. if you're not too strong with squaring a number, just use a calculator! its super easy to plug into!

lets make a scenario, you have two sides that are 3 and 3 and you are trying to find your hypotenuse!

you would plug them into A and B, if you have different numbers, it doesn't matter which slot they go into :)

so... 3^2 + 3^2 = c^2

when you put 3 to the 2nd power in the calculator, it gives you 9!

so, 9 + 9 = c^2     18 = c^2

you are not done yet :)

you have the number is squared. you must now take the square root of the number!

this is not going to be a whole number, or a pretty one, but it will be correct.

sqrt18 = c

4.242640687119285 is the hypotenuse.

whatever problem you have should say what to round to, lets just say to the nearest hundredth.

4.24 is your hypotenuse.

i really hope i helped you out in anyway possible.

if you have any other questions based on what i just did, or if you need some information that goes a little bit deeper into pythagorean theorem, i would be glad to help you!

stay safe!

:)

7 0
4 years ago
Below is an Algebraic Proof that shows how the expression x(1+y) + y(2+x) is equivalent to x + 2xy + 2y. Some of the steps are l
harina [27]

Answer:

Step-by-step explanation:

          Steps                                     Property

x(1 + y) + y(2 + x)                           Given

x + xy + 2y + xy                            Distributive property

x + xy + xy + 2y                            Commutative property of addition

                                                     [a + b = b + a]

x + (xy + xy) + 2y                           Associative property of addition

                                                      [(a + b) + c = a + (b + c)]

x + 2xy + 2y                                  Combine like terms

5 0
3 years ago
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Andrews [41]

Answer:

The truck is worth $5,135 when 9 years have passed

Step-by-step explanation:

Initial value of Alex's new truck: $42,935

Loss of value per year: $4,200

If n years passed, the truck would have lost

4,200n\ dollars

The current value of the truck will be

V(n)=42,935-4,200n

We want to know the value of n at which V is 5,135

5,135=42,935-4,200n

Solving for n

n=\frac{42,935-5,135}{4,200}

n=9 years

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stellarik [79]

Answer:

Where is the question

Step-by-step explanation: you showed no question

6 0
3 years ago
The division property of equality could be used to solve which of the following equations?
prisoha [69]
It can be used on this one 10x=3
8 0
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