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3 years ago

In the expression 4×(2+6), how does having the 4× in front of the parentheses affect the overall value of the expresssion

Mathematics

2 answers:

lina2011 [118]3 years ago

8 0

It is the multiplying factor for the whole equation if that makes sense.

babunello [35]3 years ago

4 0

You need to multiple it with your your addition answer

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Which is the simplified form of r^-7 + s^-12

makkiz [27]

Answer:

The simplified form of r^-7 + s^-12 is ----> 1/r^7 + 1/s^12

Step-by-step explanation:

3 0

3 years ago

Scientific notation for 3427

Deffense [45]

Answer:

3.427 *10^3

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10 . If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

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3 years ago

Which fraction is equivalent to 3 over negative 5?

Sonbull [250]

6 over negative 10, because you just multiply the numerator and denominator by 2

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3 years ago

Find the equation of an exponential function in the form y = ab^x, given the points (0, 3) and (2, 108/25). Please simplify your

lilavasa [31]

We have the equation:

$y=a\cdot b^x$

We know two points and we will use them to calculate the parameters a and b.

The point (0,3) will let us know a, as b^0=1.

$\begin{gathered} y=a\cdot b^x \\ 3=a\cdot b^0=a \\ a=3 \end{gathered}$

Now, we use the point (2, 108/25) to calcualte b:

$\begin{gathered} y=3\cdot b^x \\ \frac{108}{25}=3\cdot b^2 \\ 3\cdot b^2=\frac{108}{25} \\ b^2=\frac{108}{25\cdot3}=\frac{108}{3}\cdot\frac{1}{25}=\frac{36}{25} \\ b=\sqrt[]{\frac{36}{25}} \\ b=\frac{\sqrt[]{36}}{\sqrt[]{25}} \\ b=\frac{6}{5} \end{gathered}$

Then, we can write the equation as:

$y=3\cdot(\frac{6}{5})^x$

5 0

1 year ago

What is the greatest multiple of 14 and 21

vova2212 [387]

Answer:

The greatest multiple of 14 and 21 is 7.

Step-by-step explanation:

1,2,<u>7</u>,14

1,3,<u>7</u>,21

Hope it helps!

7 0

3 years ago