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telo118 [61]
3 years ago
7

Which system of equations below has infinitely many solutions

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

We get an infinite number of solutions when we have equivalent equations, for example equations that a scalar multiples of each other.  That's not going to happen for two equations in slope intercept form unless all the terms are the same.  None of those on this list.

So we're left with the second choice, and clearly the second equation is three times the first, with the same solution set, all the points along the line.

Answer: Second choice  y=-3x + 4 and 3y = -9x + 12

Anuta_ua [19.1K]3 years ago
3 0

Answer:

the first one

i think sorry if im wrong thats what i got

Step-by-step explanation:

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An object is launched directly in the air at a speed of 48 feet per second from a platform located 12 feet above the ground. The
anastassius [24]

9514 1404 393

Answer:

  48 ft

Step-by-step explanation:

For the quadratic ax^2 +bx +c, the axis of symmetry is x = -b/(2a). For the given quadratic, which defines a parabola opening downward, the axis of symmetry defines the time at which the maximum height is reached.

  t = -48/(2(-16)) = 1.5

Then the maximum height is ...

  f(1.5) = (-16·1.5 +48)1.5 +12 = (24·1.5) +12

  f(1.5) = 48

The maximum height the object will reach is 48 feet.

6 0
3 years ago
if there is a line and a point not on the line, then there is exactly one line through the point that intersects the given line?
arlik [135]
The answer is an intersect between both lines.
7 0
3 years ago
OBTAINING ONE HEAD ONLY WHEN A DIE IS<br> ROLLED AND 2 COINS ARE TOSSED.<br> Probability
Valentin [98]

Answer:

⅓

Step-by-step explanation:

n(s) 1 die & 2 coins = 6×4 = 24

n (event) 1 head = 6 (by die) +2( by coins)

= 8

so, probability P = 8/24 = ⅓

8 0
3 years ago
Isosceles trapezoid ABCD has legs AB and CD and base BC. If AB=5y - 10, BC=6y+2, and CD = 2y+8, find the value of Y.
pishuonlain [190]

Hello from MrBillDoesMath!

Answer:

Choice C    (6)

Discussion:

Since it is an isosceles trapezoid the length of the two legs (i.e.  AB = 5y-10 and CD = 2y+8) are equal.  In other words,

5y - 10 = 2 y + 8

Subtract 2y from each side:

5y - 2y - 10 = 8

Now add 10 to each side

5y - 2y - 10 + 10 = 8 + 10 =>

3y + 0 = 18 =>

3y = 18 =>

y = 6


Regards,  

MrB


3 0
3 years ago
GEOMETRY Holly can make an open-topped box out of a square piece of cardboard by cutting 3-inch squares from the corners and fol
cluponka [151]

Answer:

V(x)=3(x-6)(x-6)

Step-by-step explanation:

<u>Polynomial Factoring</u>

The volume of a cardboard box is expressed as:

V(x)=3x^2-36x+108

It's required to factor that expression.

First, factor out 3:

V(x)=3(x^2-12x+36)

The expression in parentheses is a perfect square:

\boxed{V(x)=3(x-6)(x-6)}

3 0
2 years ago
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