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3 years ago

7 (x + 7) What is the answer

Mathematics

1 answer:

velikii [3]3 years ago

4 0

Answer:7x+49

solution:
7*x + 7*7

7x+49

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In aremethic, variables look like

Digiron [165]

Answer:

variables look like letters of the alphabet.

I hope this helps

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3 years ago

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Deviance is best defined as

Licemer1 [7]

Answer:

I don't think devlance is a real word but maybe u r trying to sat deviance The answer might be B

Step-by-step explanation:

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3 years ago

Let f(x) = -2x + 7 and g(x) = -6x + 3. Find fxg and state its domain.

marissa [1.9K]

Option D: $(f\times g)(x)=12 x^{2}-48 x+21$ ; all real numbers.

Explanation:

Given that the functions are $f(x)=-2 x+7$ and $g(x)=-6 x+3$

We need to determine the value of $(f\times g)(x)$ and its domain.

The value of $(f\times g)(x)$ :

The value of $(f\times g)(x)$ can be determined by multiplying the two functions.

Thus, we have,

$(f\times g)(x)=f(x)\times g(x)$

$=(-2x+7)(-6x+3)$

$=12x^2-6x-42x+21$

$(f\times g)(x)=12 x^{2}-48 x+21$

Thus, the value of $(f\times g)(x)$ is $(f\times g)(x)=12 x^{2}-48 x+21$

Domain:

We need to determine the domain of the function $(f\times g)(x)$

The domain of the function is the set of all independent x - values for which the function is real and well defined.

Thus, the function $(f\times g)(x)=12 x^{2}-48 x+21$ has no undefined constraints, the function is well defined for all real numbers.

Hence, Option D is the correct answer.

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3 years ago

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Find the term indicated in the expansion. (x + 2y)*; fourth term Helppppppp

maksim [4K]

Answer:

wish that will help u

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3 years ago

You are remodeling your kitchen. You’ve contacted two tiling companies who gladly told you how long it took their workers to til

Papessa [141]

As given, let Jim's rate = x

Let Pete's rate =y

Jim completed half the floor in 12 hours so it's $12\times rate$ = 12x

Pete completed the other half of the floor in 10 hours so its $10\times rate$ =10y

As floor area is equal so,

$12x=10y$ .............(1)

Now, given is that Pete can lay 25 more tiles per hour than Jim, this gives=

$y=x+25$ ...... (2)

Putting the value of y from equation (2) in equation (1) , we get

$12x=10(x+25)$

So, the equation is : $12x=10(x+25)$

If you want to solve it, it becomes:

$12x=10x+250$

$2x=250$

$x=125$

Hence, Jim can lay 125 tiles and Pete can lay 25 more so 125+25=150 tiles.

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3 years ago

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