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3 years ago

A line passes through the point (-8,1) and has a slope of -5/2

Mathematics

1 answer:

lilavasa [31]3 years ago

5 0

what's the rest of the question am i graphing it or am i writing it in slope-intercept

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Solve a=9y+3xy for y

Sauron [17]

Answer:

y=a/(9+3x)

Step-by-step explanation:

Reverse: 9y+3xy=a

y(9+3x)=a

y=a/(9+3x)

4 0

3 years ago

Using the Pythagorean Theorem, find the length of a leg of a right triangle if the other leg is 8 feet long and the hypotenuse i

iren [92.7K]

The Pythagorean Theorem tells us that $a^{2}+b^{2}=c^{2}$ where c is the hypotenuse and a and b are the other two sides. To solve for one of the shorter sides we need to rearrange:

$b=\sqrt{c^{2}-a^{2}}$

We can then substitute known values, and solve:
 $b=\sqrt{10^{2}-8^{2}}$
$b=\sqrt{100-64}$
$b=\sqrt{36}$
$b=6 feet$

8 0

3 years ago

Read 2 more answers

Find the area between y=(x-2)ex and the x-axis from x=2 to x=4.

mojhsa [17]

Answer:

$e^4+e^2$

Step-by-step explanation:

It can be found by integral.

First let's find the intersection points.

$(x-2)e^x = 0$

Only intersection point is x = 2.

And it is asked to find the area in the interval (2, 4).

$\int\limits^4_2 (x-2)e^x \,dx=?$

We will use integration by parts.

$x-2=u\\dx=du\\e^xdx=dv\\e^x=v$

$\int\limits^4_2 (x-2)e^x \,dx=uv-\int vdu=(x-2)e^x-\int e^xdx=(x-2)e^x-e^x=\\\\=(x-3)e^x|^4_2=(4-3)e^4-(2-3)e^2=e^4+e^2$

3 0

3 years ago

How many times doez 100,000,000 go into 1,000,000,000

Neko [114]

Answer:

100,000,000 goes 10 times into 1,000,000,000

5 0

4 years ago

Read 2 more answers

What's the answer to: divide £48 in the ratio 7:5 (please show your working, much appreciated)

Brums [2.3K]

I can see you come from outside the USA. No insults intended!!
.
Anyways, we have to put one side of the ratio and match it to 48.
.
Or even better...
.
MAKE!!
A!!
PROPORTION!!
.
So... Let's say 7 is proportional to 48... so 7/5 = 48/x, where x is the number equivalent to ratio of 5.
.
Cross multiply!!
.
7x = 240.
.
Divide 7 on both sides.
.
x = 34 2/7.
.
Hope I helped!!

4 0

3 years ago