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Sav [38]
3 years ago
11

The system of equations y = one-fourth x minus 5 and y = negative one-half x minus 3 is shown on the graph below. On a coordinat

e plane, 2 lines intersect around (2.8, negative 4.2). Which statement is true about the solution to the system of equations? The x-value is between 2 and 3, and the y-value is between –4 and –5. The x-value is between –4 and –5, and the y-value is between 2 and 3. The x-value is between –2 and –3, and the y-value is between 4 and 5. The x-value is between 4 and 5, and the y-value is between –2 and –3.

Mathematics
1 answer:
anyanavicka [17]3 years ago
3 0

Answer:

The x-value is between 2 and 3, and the y-value is between -4 and -5

Step-by-step explanation:

The plot of the equations:

y = 1/4x - 5 (red)

y = -1/2x - 3 (blue)

is shown in the figure attached.

The solution to the system is found at the intersection point. In this case, the solution is x = 2.667 and y = -4.333

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What restrictions must be made on x, y, and z so that the triple (x, y, z) will represent a point on the y axis? On the z axis?
Aneli [31]

Answer:i) The point on y-axis is (0,y,0)

            ii) The point on z-axis is (0,0,z)

            iii)  The point on x z plane is (x,o,z)

            iv) The point on y z plane is (0,y,z)

Step-by-step explanation:

Explanation:-

i) For every point on x-axis, y-co-ordinate is zero and z- co-ordinate is zero

i .e., y=0 and z=0

The point on x-axis is (x,0,0)

ii) For every point on y-axis, x-co-ordinate is zero and z- co-ordinate is zero

i .e., x=0 and z=0

The point on y-axis is (0,y,0)

iii) For every point on z-axis, x-co-ordinate is zero and y- co-ordinate is zero

i .e., x=0 and y=0

The point on z-axis is (0,0,z)

iv)  For every point on X Z plane then Y=0

The point on x z plane is (x,o,z)

v) For every point on Y Z plane then X=0

The point on yz plane is (0,y,z)

vi) For every point on X Y plane then Z=0

The point on x y plane is (x,y,0)

3 0
3 years ago
The top and bottom margins of a poster are each 6.5 cm and the side margins are each 4.5 cm. The area of printed material on the
ycow [4]

Answer:

384cm^2,

Step-by-step explanation:

The top and bottom margins of a poster are each 6 cm and the side margins are each 4 cm. If the area of printed material on the poster is fixed at 384 cm^2,

8 0
3 years ago
Simplify 3a - 2(8 +4a)
tigry1 [53]

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

Answer:

Let's simplify step-by-step.

3a − 2 ( 8 + 4a )

Distribute:

= 3a + ( −2 ) ( 8 ) + ( −2 ) ( 4a )

= 3a + −16 + −8a

Combine Like Terms:

= 3a + −16 + −8a

= ( 3a + −8a ) + ( −16 )

Answer:

= −5a − 16

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

4 0
3 years ago
If a-b = 7 and ab = 8. Find the value of a^3 - b^3 (a cube - b cube)​
Leto [7]

Answer:

511

Step-by-step explanation:

a-b = 7 ____eq 1

ab = 8 ____eq 2

a = 7 + b ___eq 3

a = 8/b ___eq 4

using simultaneous equations :

7 + b = 8/b

7b + b^2=8

b^2 + 7b - 8 =0

factorize it

b^2 + 8b - b - 8 = 0

b(b+8) -1(b+8)=0

b = 1 , -8

then a = 8/1 = 8

a =8/-8 = -1

a = 8, -1

so,

a^3 - b^3

= (8)^3-(1)^3

= 511

7 0
3 years ago
Somebody please help me. I cant figure this out once so ever.
WITCHER [35]

Answer:

A

Step-by-step explanation:

The Fibonacci sequence is the sum of the two terms before it. It looks like this:

1, 1, 2, 3, 5, 8, 13, 21, 34, ...

As you can see, 13 and 21 are indeed consecutive terms.

7 0
3 years ago
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