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3 years ago

Write an algebraic expression for the following situation: 12 3/4 less than the product of 7 and a number x *

Mathematics

2 answers:

ehidna [41]3 years ago

6 0

Answer:

7x - 12 3/4

product of 7 and a number x: 7x

12 3/4 less than the... : - 12 3/4

Sophie [7]3 years ago

6 0

Answer:

7x - 12 3/4

Step-by-step explanation:

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9 divided by what equals 18?

Vikentia [17]

Answer:

0.5

planation:

9/18 = 0.5

If you write the problem out x will represent the missing number

9 ÷ x = 18

You can write it as 9 ÷ 18

which is 0.5

The problem is asking what is 9 divided by to get 18

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3 years ago

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Nia puts $750 into a savings account. The simple interest rate for the savings account is 3%. If Nia does not withdraw or deposi

7nadin3 [17]

Answer:

63%

Step-by-step explanation:

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3 years ago

If you are subtracting (2n - 4)-(4n-3) what do you get

bearhunter [10]

You first have to distribute the negative to the second pair of parenthesis. So the new equation would be 2n-4-4n+3. Next you combine like terms. So your final answer is -2n-1.

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3 years ago

Find a point on the y-axis that is equidistant from the points (8, −8) and (1, 1).

artcher [175]

$\text{We know that any point on the y-axis is of the form (0, y),}\\
\text{because on y-axis we have x=0.}\\
\\
\text{So let (0, y) be the point on the y-axis that is equidistance from}\\
\text{the points }(8,-8) \text{ and }(1,1)\\
\\
\text{so using the distance formula, we have}\\
\\
\text{Distance between (0, y) and }(8,-8)=\text{Distance between (0,y) and }(1,1)\\
\\
\Rightarrow \sqrt{(0-8)^2+(y-(-8))^2}=\sqrt{(0-1)^2+(y-1)^2}$

$\Rightarrow \sqrt{64+(y+8)^2}=\sqrt{1+(y-1)^2}\\
\\
\text{Squaring both sides, we get}\\
\\
(\sqrt{64+(y+8)^2})^2=(\sqrt{1+(y-1)^2})^2\\
\\
\Rightarrow 64+(y+8)^2=1+(y-1)^2\\
\\
\Rightarrow 64+(y^2+16y+64)=1+(y^2-2y+1)\\
\\
\Rightarrow y^2+16y+128=y^2-2y+2\\
\\
\Rightarrow y^2+16y-y^2+2y=2-128\\
\\
\Rightarrow 18y=-126\\
\\
\Rightarrow y=\frac{-126}{18}\\
\\
\Rightarrow y=-7$

So the point on the y-axis that is equidistant from the points (8,-8) and (1,1) is: (0,-7)

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4 years ago

For two functions, f(x) and g(x), a statement is made that f(x) = g(x) at x = 5. What is definitely true about x = 5? Both f(x)

kati45 [8]

Answer: 'Both f(x) and g(x) have the same output value at x = 5' is true statement.

Step-by-step explanation:

Since, for a function f(x), x is the input value and f(x) is the output value,

Here, f(x) and g(x) are two functions,

Such that f(x) = g(x) at x = 5,

⇒ The output value of both function is equal for the input value of x.

⇒ Fourth option is the true statement.

Note : For other options, the adequate information is not given.

That's why we can not say them true.

8 0

3 years ago

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