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kenny6666 [7]
3 years ago
9

What is 56 decreased by twice a number

Mathematics
2 answers:
DerKrebs [107]3 years ago
7 0
Algebraic expresion: 56-2x
Mnenie [13.5K]3 years ago
7 0
2x-56. This is the answer because since you don't know what the number is it is gonna be x and twice a number would be 2x. The 56 is subtracted from the 2x because decreased means subtraction.
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Find the product of 52.6 x 9
marta [7]

Answer: 473.4

Step-by-step explanation: if you can't solve it, break the first number apart, multiply both numbers, then add them together. That way there not such big numbers :)

8 0
3 years ago
HEEELP
Drupady [299]

Answer: (c)

Step-by-step explanation:

Given

f(x)=\dfrac{1}{x-3}\\\\g(x)=\sqrt{x+5}

Here, \sqrt{x+5}\ \text{is always greater than equal to 0}\\\Rightarrow x+5\geq 0\\\Rightarrow x\geq -5\quad \ldots(i)

To get f\left(g(x)\right), replace x in f(x) by g(x)\ \text{i.e. by}\ \sqrt{x+5}

\Rightarrow f\left(g(x)\right)=\dfrac{1}{\sqrt{x+5}-3}\\\\\text{Denominator must not be equal to 0}\\\\\therefore \sqrt{x+5}-3\neq0\\\Rightarrow \sqrt{x+5}\neq 3\\\Rightarrow x+5\neq 9\\\Rightarrow x\neq 4\quad \ldots(ii)

Using (i) and (ii)  it can be concluded that the domain of f\left(g(x)\right) is all real numbers except 0.

Therefore, its domain is given by

x\in [-5,4)\cup (4,\infty)

Option (c) is correct.

5 0
3 years ago
Please help with math question
Naddik [55]
1- Solution using graphs:
Take a look at the attached images.
The red graph represents the first given function while the blue graph represents the second given function.
We can note that the two graphs are the same line (they overlap).
This means that any chosen point on one of them will satisfy the other.
This means that there are infinite number of solutions to these two equations.

2- Solution using substitution:
The first given equation is:
y = -5x + 3 ...........> equation I
The second given equation is:
2y + 10x = 6 ...........> equation II

Substitute with I in II and solve as follows:
2(-5x+3) + 10x = 6
-10x + 6 + 10x = 6
0 = 0
This means that there are infinitely many solutions to the given system of equations.

Hope this helps :)

3 0
2 years ago
Amy, Dan and mike are competing in a cooking contest they all used different amounts of milk from a container holding 6 gallons
natka813 [3]

Answer: 0.14

Step-by-step explanation:

You had to convert the decimals into percentages move the decimal point two places to the left which makes 14% the answer

4 0
3 years ago
Read 2 more answers
14:56
pentagon [3]

Answer:

\dfrac{14}{56}=\dfrac{1}{4}

Step-by-step explanation:

We need to find an expression that is equivalent to 14:56.

So,

\dfrac{14}{56}=\dfrac{14}{14\times 4}\\\\=\dfrac{1}{4}

So, the equivalent expression of the given expression is \dfrac{1}{4}.

7 0
3 years ago
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