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4 years ago

In math what is the answer to this question. -27•7/9=

Mathematics

1 answer:

agasfer [191]4 years ago

6 0

$-27 \times \frac{7}{9} = -3\times \frac{7}{1} = -3\times 7 = \boxed{-21}$

Your answer is -21

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What is the value of AAA when we rewrite 2^{x-6}+2^{x}2 x−6 +2 x 2, start superscript, x, minus, 6, end superscript, plus, 2, st

Nuetrik [128]

Answer:

$A=\frac{65}{64}\ or\ A=1.015625$

Step-by-step explanation:

Given:

The expression is given as:

$2^{x-6}+2^{x}$

The equivalent expression to the above expression is given as:

$A\cdot 2^{x}$

Now, simplifying the original expression using the law of indices:

$a^{m-n}=\frac{a^m}{a^n}$

So, $2^{x-6}=\frac{2^x}{2^6}$ . The expression becomes:

$=\frac{2^x}{2^6}+2^x$

Now, $2^x$ is a common factor to both the terms, so we factor it out. This gives,

$=2^x(\dfrac{1}{2^6}+1)\\\\=2^x(\frac{1}{64}+1)\\\\=2^x(\frac{1}{64}+\frac{64}{64})\\\\=2^x(\frac{1+64}{64})\\\\=2^x(\frac{65}{64})\\\\=(\frac{65}{64})\cdot 2^x$

Now, on comparing the simplified form with the equivalent expression, we conclude:

$A\cdot2^x=(\frac{65}{64})\cdot 2^x\\\\A=\frac{65}{64}\ or\ 1.015625$

Therefore, the value of 'A' is $A=\frac{65}{64}\ or\ A=1.015625$

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3 years ago

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A 75.0 kg person steps on a scale in an elevator. The scale reads 761 N. What is the magnitude of the acceleration of the elevat

chubhunter [2.5K]

You can use Newton's law, Resultant force=Mass×Acceleration.To find the acceleration take force over mass of the person which is 761N÷75.0kg.Hope this helps.

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4 years ago

If f(x) = 4x + 8.<br> What is f (9)?<br> Need help

AURORKA [14]

Answer:

4(9)+8=44

Step-by-step explanation:

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3 years ago

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hoa [83]

The vertex is in the form (x, y).

The x value of the vertex is found using x = -b/2a.

After finding the x values, plug it into the given inequality to find the y value of the vertex.

Then express the vertex as a point in the form (x, y).

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3 years ago

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erastovalidia [21]

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3 years ago