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mario62 [17]
3 years ago
6

Complete the square to find the vertex of this parabola. y^2+4x - 2y+21=0

Mathematics
2 answers:
Firlakuza [10]3 years ago
5 0

Answer:

::::::::::::::::::::

(-5,1)

sp2606 [1]3 years ago
5 0
The vertex is (-5,1)
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What is the solution of
Karolina [17]
Answer is b
there are 2 cases
1: if x is less than -5/3
then you have -3x-5=5x+2
solve and get x=-7/8 which is invalid

2: if x is more than -5/3
then you have 3x+5=5x+2
solve and get x=3/2 which is valid

so b is the answee
3 0
3 years ago
4. Write an equation of a line that passes<br> through the points (-5, -11) and (-2,1).
Vladimir [108]

Answer:

y=4x+9

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(1-(-11))/(-2-(-5))

m=(1+11)/(-2+5)

m=12/3

m=4

y-y1=m(x-x1)

y-(-11)=4(x-(-5))

y+11=4(x+5)

y=4x+20-11

y=4x+9

7 0
3 years ago
The perimeter of a triangle is 92 centimeters. if two sides are equally long and the third side is 8 centimeters longer than the
Dmitry [639]
Nvm wait I read the question wrong. The real answer would be 28, 28, 36
6 0
4 years ago
What is the radius of
Nana76 [90]

Answer:

Radius of cylinder = 2 inch (Approx.)

Step-by-step explanation:

Given:

Volume of cylinder = 75.4 in³

Height of cylinder = 6 inches

Find;

Radius of cylinder

Computation:

Volume of cylinder = πr²h

Volume of cylinder = (3.14)r²(6)

75.4 = (18.84)r²

(Radius of cylinder )² = 75.4 / 18.84

(Radius of cylinder )² = 4.002123

(Radius of cylinder) = 2

Radius of cylinder = 2 inch (Approx.)

5 0
3 years ago
79/10 as a mixed number
neonofarm [45]
7 \frac{9}{10}
6 0
3 years ago
Read 2 more answers
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