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Sunny_sXe [5.5K]
2 years ago
12

Construct the triangle ABC using as coordinates of its vertices points A(−3, 0), B(4, 5), C(0, −4). Find the coordinates of inte

rsection of side AB with the y-axis.
DO NOT GIVE ME THE ANSWER OF (0,2) IT IS WRONG!
Pls graph it and give me another answer 15 points!!!!!!!!!

Mathematics
1 answer:
Mnenie [13.5K]2 years ago
5 0

Plot all points on the coordinate plane and combine these points by lines to get triangle ABC (see attached picture for details).

Write the equation of side AB:

\dfrac{x-(-3)}{4-(-3)}=\dfrac{y-0}{5-0} ,\\ \\\dfrac{x+3}{7}=\dfrac{y}{5},\\ \\y=\dfrac{5}{7}x+\dfrac{15}{7}.

To find y-intercept you have to substitute x=0, then:

y=\dfrac{5}{7}\cdot 0+\dfrac{15}{7}=\dfrac{15}{7}=2\dfrac{1}{7}.

The point \left(0,2\dfrac{1}{7} \right) is the point where line AB intersects y-axis.

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Moscow, the capital city of Russia, is at 37.62 degrees longitude and 55.75 degrees latitude. Brasilia, the capital city of Braz
notsponge [240]
The distance between two positions with longitudes A and B is given by ||A| - |B|| if the two positions are at the same side of the meridian (0 degrees longitude) and |A| + |B| if both positions are at different sides of the meridian.

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Therefore, the distance </span><span>(in degrees) between the longitude lines of Moscow and Brasilia</span> is |37.62| + |-47.87| = 37.62 + 47.87 = 85.49
6 0
3 years ago
How To work this out ?
MrMuchimi
(a) Using the completing the square method, we need to write  into the form of  where , so
Expand to find the value of c
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Hence, 
(b)          
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6 0
3 years ago
Need help fast!
amm1812
Answer: A) Point B, because if cups of frosting are 50, then drops of food coloring will be 200.


This is because the proportion of frosting to food coloring is 1:4, and if the answer to A is simplified (50:200), the ratio would be the same.
8 0
3 years ago
Read 2 more answers
What number do 7 6 3 and 5 go into(lcm)
laila [671]

Answer:

210

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Help please!
bagirrra123 [75]

(d):  y = mx+n

m = -2/3 ⇒ y = (-2/3)x +n

A(-4,  6) ∈ d  ⇒ 6 = (-2/3)·(-4) +n ⇒ 6 = 8/3 +n ⇒

⇒ n = 6 - 8/3 ⇒ n = 10/3

Now, we have:

y = (-2/3)x +10/3


6 0
3 years ago
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