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3 years ago

Which equations have infinitely many solutions? MORE THAN ONE

Mathematics

2 answers:

yarga [219]3 years ago

6 0

Answer:

B and D

Step-by-step explanation:

ummmmm...... I too lazy. Mental math.

Oliga [24]3 years ago

5 0

Answer:

B and D

Step-by-step explanation:

When both sides of an equation are same then the equation has infinitely many solutions

x-3x=-2x+4

Both sides are not same.

LEts simplify the left hand side. cancel out 3 at the top and bottom

x- x = 0

0=0 , so the equation have infinitely many solutions.

$\frac{1}{3} x-3=4+2x$

Both sides are not same , so does not have infinite solutions

Cancel out 3 at the top and bottom

3x + 2 -x = 2+2x

2x+2 = 2+2x

Both sides are same , so the equation have infinitely many solutions.

$x-\frac{1}{3} x+2=0$

Both sides are not same .

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60/0.20 = x
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3 years ago

Simplify the expression below:

kifflom [539]

Answer:

C. -7x^2 - 28

Step-by-step explanation:

Firstly simplify the bracket before doing anything;

4x(3x - 7) = 12x^2 - 28x

then go back to the question and substitute the expression(12x^2 - 28x) on the bracket and then work out the question;

12x^2 - 28x -19x^2...then group the values with the same exponent of x,

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3 years ago

In ΔXYZ, z = 81 cm, ∠Y=139° and ∠Z=6°. Find the length of y, to the nearest 10th of a centimeter.

Delicious77 [7]

Answer:

508.4

Step-by-step explanation:

This is on delta math

3 0

3 years ago

Read 2 more answers

Write an equation for a parabola in which the set of all points in the plane are equidistant from the focus and line F(-6,0); x=

Bogdan [553]

Step-by-step explanation:

Since we have a vertical directrix, the equation of the parabola is

$(y - k) {}^{2} = 4p(x - h)$

Where p is the distance from the vertex to the directrix.

or the distance from the vertex to the focus.

Since we have a sideways parabola, let use the point for the directrix is (-6,0). So let find the midpoint of (-6,0) and (6,0). That would be our vertex.

$\frac{ - 6 + 6)}{2} = 0$

$\frac{0 + 0}{2} = 0$

So our vertex is (0,0).

So our equation become

${y}^{2} = 4px$

The distance from the focus and directrix is 6.

So p=6.

${y}^{2} = 24x$

So p is 6.

Since p is 6,

$\frac{ {y}^{2} }{24} = x$

3 0

2 years ago

Pls help me solve this

melamori03 [73]

Answer:

See below.

Step-by-step explanation:

1.) False - It contains 6 sig figs, not 2.

2.) False - It goes up to 2 decimal places, not 3.

3.) True

4.) False - It goes up to 1 sig fig, not 4.

8 0

3 years ago