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Maru [420]
3 years ago
6

Solving Quadratic equations by factoring 2x^2-20x+42

Mathematics
1 answer:
elixir [45]3 years ago
8 0

Solve the equation for x by finding a, b, and c of the quadratic then applying the quadratic formula.

x = 7,3

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Four fourths of a gallon

Step-by-step explanation:

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3 years ago
PLz help.
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Step-by-step explanation:

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Read 2 more answers
Simplify 18-2[x + (x - 5)].<br> O8-4x<br> 28 - 4x<br> 28 - 2x
densk [106]

Answer:

28-4x

Step-by-step explanation:

Step 1: Open most inner bracket and simplify

=18-2(x+x-5)

=18-2(2x-5)

Step 2: Expand brackets by multiplying 2 in and simplify

=18-2(2x)-2(-5)

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3 0
2 years ago
Are the two figures congruent?
geniusboy [140]

Answer:

No, because the reflection of ABC is not congruent to A’B’C’.

Step-by-step explanation:

we know that

The rule of the reflection across the line y=x is equal to

(x,y) -------> (y,x)

so

A(-6,6) -------> A'(6,-6) ----> is ok

B(-3,3) ------> B'(3,-3) ----> is ok

C(-8,2) ------> C'(8,-2) ----> is not ok ( is not a reflection acros the line y=x)

therefore

The triangles are no t congruent, because the reflection of ABC is not congruent to A’B’C’

6 0
3 years ago
Y=-4x-7 in standard form
Lapatulllka [165]
<span>Y=-4x-7 in standard form is,</span> y + 4 * x + 7 = 0

6 0
3 years ago
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