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3 years ago

Math Test Helpppppp!!!!!!!!

Mathematics

1 answer:

soldier1979 [14.2K]3 years ago

3 0

Simple problem:

When simplifying 3(x-6) they subtracted 3 instead of multiplied by 3.
3(x-6) should be 3x-18.
Now when you simplify:
3x-18+4x+12-6x
Which is x -6 =0
Or x =6

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Step-by-step explanation:

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3 years ago

Find the length of side x simplest radical form with a rational denominator

Nuetrik [128]

Answer:

The length of x in the simplest radical form with a rational denominator will be:

$x=\frac{5\sqrt{3}}{2}$

Step-by-step explanation:

Given

hypotenuse = 5

angle Ф = 60°

To determine

x = ?

Using the trigonometric ratio

cos Ф = adjacent / hypotenuse

here

Ф = 60°

adjacent of 60° = x

hypotenuse = 5

so substituting Ф = 60°, adjacent = x and hypotenuse = 5 in the equation

cos Ф = adjacent / hypotenuse

$cos\:60^{\circ }\:=\:\frac{x}{5}$

$\frac{\sqrt{3}}{2}=\frac{x}{5}$

switch sides

$\frac{x}{5}=\frac{\sqrt{3}}{2}$

Multiply both sides by 5

$\frac{5x}{5}=\frac{5\sqrt{3}}{2}$

Simplify

$x=\frac{5\sqrt{3}}{2}$

Therefore, the length of x in the simplest radical form with a rational denominator will be:

$x=\frac{5\sqrt{3}}{2}$

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3 years ago

Decimal divison need answer no pdf

baherus [9]

Answer:

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Step-by-step explanation:

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3 years ago

Find the domain in the given ordered pairs.<br> {(2,8). (1,7), (2,9). (4, 6)}

Vlada [557]

Answer:

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Step-by-step explanation:

The domain is the input values

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Domain: {1,2,4}

8 0

3 years ago

Read 2 more answers

In January of 2003(group 1), 1188 out of 1500 spots were bare ground (no vegetation). Find the sample proportion of bare ground

Nikitich [7]

Answer:

$n= 1500$ represent the random sample selected

$X= 1188$ represent the number of pots that were bare ground (no vegetation

$\hat p=\frac{X}{n}$

And replacing we got:

$\hat p=\frac{1188}{1500}= 0.792$

So then the sample proportion of bare ground spots is 0.792 for this sample

Step-by-step explanation:

We have the following info given from the problem:

$n= 1500$ represent the random sample selected

$X= 1188$ represent the number of pots that were bare ground (no vegetation)

And for this case if we want to find the sample proportion of bare ground spots we can use this formula:

$\hat p=\frac{X}{n}$

And replacing we got:

$\hat p=\frac{1188}{1500}= 0.792$

So then the sample proportion of bare ground spots is 0.792 for this sample

7 0

3 years ago