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3 years ago

1/3(x-7)=5 what does x equal

Mathematics

1 answer:

Tpy6a [65]3 years ago

8 0

Answer: 1/3x(22-7)=5 so the answer is 22.

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HELP ASAP

stira [4]

Answer:

Use khan academy for the graph.

Step-by-step explanation:

8 0

3 years ago

Help! If you know this can you tell me how to do it?

aleksandr82 [10.1K]

Answer:

Step-by-step explanation:

Here's how this works:

Get everything together into one fraction by finding the LCD and doing the math. The LCD is sin(x) cos(x). Multiplying that in to each term looks like this:

$[sin(x)cos(x)]\frac{sin(x)}{cos(x)}+[sin(x)cos(x)]\frac{cos(x)}{sin(x)} =?$

In the first term, the cos(x)'s cancel out, and in the second term the sin(x)'s cancel out, leaving:

$\frac{sin^2(x)}{sin(x)cos(x)}+\frac{cos^2(x)}{sin(x)cos(x)}=?$

Put everything over the common denominator now:

$\frac{sin^2(x)+cos^2(x)}{sin(x)cos(x)}=?$

Since $sin^2(x)+cos^2(x)=1$ , we will make that substitution:

$\frac{1}{sin(x)cos(x)}$

We could separate that fraction into 2:

$\frac{1}{sin(x)}$ × $\frac{1}{cos(x)}$

$\frac{1}{sin(x)}=csc(x)$ and $\frac{1}{cos(x)}=sec(x)$

Therefore, the simplification is

sec(x)csc(x)

5 0

4 years ago

Using the integer tiles interactive, what steps do you need to do to evaluate the following expression? Select two options. –5(–

dangina [55]

The steps you need to do to evaluate the expression are (b) Drag zero pairs to the window. and (c) Remove the 5 groups of –2 tiles.

<h3>How to determine the steps you need to do to evaluate the expression</h3>

The expression is given as:

-5(-2)

The above expression represents the product of -5 and -2

This can be interpreted as:

Removal of 5 groups of -2; to remove means negative
Dragging zero pairs of 5 and 2 to the interactive window

Hence, the steps you need to do to evaluate the expression are (b) Drag zero pairs to the window. and (c) Remove the 5 groups of –2 tiles.