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3 years ago

Solve 7x – 5x – 3 = x 4.

Mathematics

1 answer:

Dafna1 [17]3 years ago

4 0

Wouldnt the equation be 7(4)-5(4)-3?
so type that in and im sure thats the answer idk

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7x+2y=-28<br><br><br>Help write slope-intercept form pls

kap26 [50]

Answer:

y = - $\frac{7}{2}$ x - 14

Step-by-step explanation:

Slope intercept form: y = mx + b

Isolate the y:

7x + 2y = -28

2y = -7x - 28

y = - $\frac{7}{2}$ x - 14

3 0

3 years ago

Guys can you please to this thank

hram777 [196]

= 16 + 49 - 3(11) - 4(10)
= 16 + 49 - 33 - 40
= -8

7 0

3 years ago

Isabel graphed the following system of equations.

igor_vitrenko [27]

Answer:

Step-by-step explanation:

Simplified the following system of equations into a linear equation.

Graphed (plot the points) the linear equation onto the graph.

To get the solution (2,-2) (x,y)she went positive 2 to the right and -2 down.

4 0

3 years ago

HELP WILL GIVE BRAINLIEST!!

Vikentia [17]

Answer:

160 in^2

Step-by-step explanation:

5 0

3 years ago

PLEASE HELP ASAP!!

Elza [17]

Answer:

The parabolic equation does not intersect the linear equation.

Explanation:

Given equation's:

y = x² − 5x + 9
y = -2x

To solve , use substitution method by inserting 2nd equation into 1st

$\sf y = x^2 - 5x + 9$

when substituted y = -2x

$\sf -2x = x^2 - 5x + 9$

collect terms

$\sf x^2 - 5x+ 2x + 9=0$

simplify

$\sf x^2 - 3x + 9=0$

Find discriminant:

$\sf b^2 - 4ac$

$\sf (-3)^2 - 4(1)(9)$

$\sf -27$

As the discriminant is negative, it tell us that they both does not intersect each other.

7 0

2 years ago