If you would like to solve 2x + 5y = - 13 and 3x - 4y = -8, you can do this using the following steps:
<span>2x + 5y = -13 /*4
3x - 4y = -8 /*5
</span>_________________
8x + 20y = -52
15x - 20y = -40
_________________
8x + 15x + 20y - 20y = -52 - 40
23x = -92 /23
x = -92 / 23
x = -4
<span>2x + 5y = -13
</span>2 * (-4) + 5y = -13
-8 + 5y = -13
5y = -13 + 8
5y = -5
y = -1
(x, y) = (-4, -1)
The correct result would be D.) <span>(-4, -1).</span>
Answer:
6.025 as a mixed number is 6 1/40
Answer:
Step-by-step explanation:
see the attached figure to better understand the problem
step 1
In the right triangle ADE
Find the value of h1
See the attached figure
h1=AD
Solve for h1
step 2
In the right triangle ABC
Find the value of h2
See the attached figure
h2=BC
Solve for h2
step 3
Find the height of the neighboring building
we know that
The height of the neighboring building is equal to
substitute the values
Round to the nearest tenth of a foot
Well, since it is asking for an average, we have to add
78+89+87+96=
350... then we divide by 4
which would be 87.5 which IS greater than 80 :)
and less than 90 :)
Answer:
x=0
Step-by-step explanation:
Since y-intercepts lie on the y-axis, the x-coordinate must be 0.
