Answer:
a and c are the correct answers
brainliest please
Step-by-step explanation:
simplify each equation and look for ones which solve to a simple numeric equality:
First equation solves to -3/7=-18/42...take a 6 from 18 and 42, and you get -3/7. -3/7=-3/7 which is true - that means that, no matter what value is inserted for x, a true equation will result = infinite number of solutions
Second equation simplifies to 3x=-30. Nope
Third equation simplifies to -18=-18 = infinite number of solutions
Fourth eq: 5=-7/2 = No solution
5th eq: 6.2x=-3.5-16.2 = nope
Rewrite the equation in term of x and y . F(x) = x-2)^2-4
Use the vertex form y=a (x-h)^2 +k to determine the values of a,h and k. A=1
H=2 k=-4 find the vertex 2,-4
Answer:
15
Step-by-step explanation:
5/15=3/v
5v=15×3
5v=75
5v/5=75/5
v=15
Answer:
Mia scored 6 baskets Last Saturday.
Step-by-step explanation:
Let:
Mia made score of baskets on Last Saturday = x
Mia made score of baskets yesterday = 3x (Mia made three times as many baskets in yesterday’s basketball game as she did last Saturday. three times means multiply 3 with score of Last Saturday baskets, i.e. x)
Total score of baskets = 24
We need to find How many baskets did Mia score last Saturday?
We can write:
<em>Total Score = Score on Last Saturday + Score yester</em>day
![24=x+3x](https://tex.z-dn.net/?f=24%3Dx%2B3x)
Solving this equation we can find value of x:
![24=x+3x\\24=4x\\=>4x=24\\x=\frac{24}{4}\\x=6](https://tex.z-dn.net/?f=24%3Dx%2B3x%5C%5C24%3D4x%5C%5C%3D%3E4x%3D24%5C%5Cx%3D%5Cfrac%7B24%7D%7B4%7D%5C%5Cx%3D6)
So, we get value of x = 6
Mia made score of baskets on Last Saturday = x = 6
Mia scored 6 baskets Last Saturday.
Answer:
x=-7, y=-5. (-7, -5).
Step-by-step explanation:
2y+x=-17
5x-4y=-15
---------------
x=-17-2y
5(-17-2y)-4y=-15
-85-10y-4y=-15
-85-14y=-15
14y=-85-(-15)
14y=-85+15
14y=-70
y=-70/14
y=-5
2(-5)+x=-17
-10+x=-17
x=-17-(-10)
x=-17+10
x=-7