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3 years ago

Help me find the answer

Mathematics

1 answer:

Sergio039 [100]3 years ago

4 0

Answer:

can i get brainly doe?

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What is the principal solution to the equation?

ikadub [295]

First step: x= ± √ 121
Second step and correct answer: x= ± 11

Because: x^2 = x= ± √

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2 years ago

Quick please!

Soloha48 [4]

Answer:

3(4j + 7 + 2j)

12j + 21 + 6j

12j + 6j + 21

18j + 21 ----- (1)

3(6j +7)

18j + 21 --------(2)

eq 1 = eq. 2

both are equal

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1 year ago

Use a rectangular array to write the product in Standard form 2(x+10=?

Sladkaya [172]

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2 years ago

What two numbers multiply and get 100 and add and get -29??

butalik [34]

X, y - the numbers

The numbers multiply to 100.
$xy=100$

The numbers add up to -29.
$x+y=-29 \\
y=-x-29$

Substitute -x-29 for y in the first equation:
$x(-x-29)=100 \\
-x^2-29x=100 \\
-x^2-29x-100=0 \\
-x^2-4x-25x-100=0 \\
-x(x+4)-25(x+4)=0 \\
(-x-25)(x+4)=0 \\
-x-25=0 \ \lor \ x+4=0 \\
x=-25 \ \lor \ x=-4 \\ \\
y=-x-29 \\
y=-(-25)-29 \ \lor \ y=-(-4)-29 \\
y=25-29 \ \lor \ y=4-29 \\
y=-4 \ \lor \ y=-25 \\ \\
(x,y)=(-25,-4) \hbox{ or } (x,y)=(-4,-25)$

The numbers are -4 and -25.

6 0

3 years ago

Read 2 more answers

What is 7a + 1 = 8a - (a - 1)

leva [86]

Answer: all real numbers

Step-by-step explanation:

7a + 1 = 8a - a + 1

7a + 1 = 7a + 1

a = all real numbers

5 0

3 years ago