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3 years ago

I need help please... I'll mark you brainiest!!! Thanks!

Mathematics

1 answer:

lys-0071 [83]3 years ago

5 0

Multiply the weight in tonnes by the conversion factor ( 1 tonne = 1000 kg) to get the weight in kg's:

170 tonnes x 1000 = 170,000

Now convert to scientific notation, by moving the decimal point to have only 1 digit to the left of the decimal.

To do this, you would need to move the decimal 5 places to the left to get 1.70000

Now remove the 0's and multiply the number by 10 raised to the number of paces the decimal was moved to get:

1.7 x 10^5 kg's.

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What is the equation of a line passing through the point

Anettt [7]

Answer:

$y=5x-13$

Step-by-step explanation:

The correct question is

What is the equation of a line passing through the point (3, 2) and parallel to the line y=5x+4

step 1

Find the slope of the given line

we have

$y=5x+4$

This is the equation of the line in slope intercept form

The slope is $m=5$

step 2

Find the slope of the line parallel to the given line

we know that

If two lines are parallel, then their slopes are equal

The slope is $m=5$

step 3

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=5$

$point\ (3,2)$

substitute

$y-2=5(x-3)$

step 4

Convert to slope intercept form

$y=mx+b$

isolate the variable y

$y-2=5x-15$

$y=5x-15+2$

$y=5x-13$

3 0

3 years ago

Trevor took one of his friends out to lunch. The lunches cost $248.40 and he paid 12.5% sales tax. If Trevor left a 15% tip on t

bixtya [17]

He paid ...

-- The cost of the lunches (100% = 1.00 of it)

-- 15% of the cost as a tip (15% = 0.15 of it)

-- 12% of the cost as sales tax (12% = 0.12 of it)

Total that he paid = (1.00 + 0.15 + 0.12) = 1.27 of $248.40

= $315.47 .

Trevor is one generous guy !

4 0

3 years ago

ITS A TIMED TEST!!!!! PLEASE HELP!!!!!!!!

dsp73

I believe it is A. Sorry if it’s wrong <3

7 0

3 years ago

Help with this geometry question.

KATRIN_1 [288]

Plug in 4m in the space

6 0

4 years ago

A cylindrical pressure vessel has a height of 9 feet and a diameter of 6 feet. How much gas can the pressure vessel hold when fu

notka56 [123]

since the diameter of the base of the cylinder is 6 feet, then its radius is half that, or 3 feet.

$\bf \textit{volume of a cylinder}\\\\
V=\pi r^2 h~~
\begin{cases}
r=radius\\
h=height\\[-0.5em]
\hrulefill\\
r=3\\
h=9
\end{cases}\implies V=\pi (3)^2(9)\implies V=81\pi$

5 0

3 years ago

Read 2 more answers