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3 years ago

12

Help please it’s for a grade and is due today

1 answer:

crimeas [40]3 years ago

5 0

Answer:

1/4

Step-by-step explanation:

You might be interested in

for the expression n(2n+4n^2-5-3n), use the distributive property to write an equivalent expression in standard form

Ronch [10]

$\text{distributive property:}\ a(b+c)=ab+ac\\\\2n+4n^2-5-3n=4n^2+(2n-3n)-5=4n^2-n-5\\\\n(2n+4n^2-5-3n)=n(4n^2-n-5)=(n)(4n^2)+(n)(-n)+(n)(-5)\\\\=\boxed{4n^3-n^2-5n}$

4 0

4 years ago

Find the following equation

adoni [48]

Answer:

$y=\frac{-1}{2}x+7$

Step-by-step explanation:

Slope intercept form: $y=mx+b$ when $m$ is the slope of the line and $b$ is the y-intercept (the y-coordinate of the point the line crosses the y-axis)

<u>1) Find the slope (</u> $m$ <u>)</u>

$m=\frac{y_2-y_1}{x_2-x_1}$ when the points are $(x_1,y_1)$ and $(x_2,y_2)$

We can use any two points that the table gives us to plug into this equation. For example, we can use the points (14,0) and (0,7):

$m=\frac{0-7}{14-0}\\m=\frac{-7}{14}$

Simplify the fraction

$m=\frac{-1}{2}$

So far, our equation looks like this:

$y=\frac{-1}{2}x+b$

<u>2) Find the y-intercept (</u> $b$ <u>)</u>

The y-intercept is the y-coordinate of the point the line crosses the y-axis, or in other words, it's the value of y when x is equal to 0.

Looking at the table, we can see that y is equal to 7 when x is equal to 0, so, therefore, $b=7$ .

Now, this is our final equation after plugging in $m$ and $b$ :

$y=\frac{-1}{2}x+7$

I hope this helps!

3 0

3 years ago

SOLVE FOR X! SOMEONE PLEASE HELP ME!!!

Tasya [4]

Answer:

x+5= x+5 7.5=7.5 and 2x-5= 2x-5

5 0

3 years ago

0.06 is one tenth of what number?

8_murik_8 [283]

Answer:

0.6

Step-by-step explanation:

0.06 is one-tenth of the number that is 10 times bigger than 0.06.

0.06 * 10 = 0.6

0.06 is one-tenth of 0.6.

6 0

3 years ago

Read 2 more answers

. Using ratios and the Pythagorean Theorem the approximate width is 23.5 inches and the height is inches.

Sergio039 [100]

Given:

There is a ratio given as 16:9 of width to height and diagonal is 27 iniches

Required:

We need to find the value of height

Explanation:

By ratio

$\begin{gathered} \frac{w}{h}=\frac{16}{9} \\ \\ h=\frac{9}{16}w \end{gathered}$

where w is width and h is height

by using pythagorean theorem

$\begin{gathered} 27^2=h^2+w^2 \\ 729=\frac{81}{256}w^2+w^2 \\ \\ 186624=81w^2+256w^2 \\ w^2=553.78 \\ w=23.5\text{ in} \end{gathered}$

to find h

$h=\frac{9}{16}*23.5=13.24\text{ in}$

Final answer:

height is 13.24 inches

8 0

1 year ago