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notka56 [123]
3 years ago
11

Which system of equations is equivalent to this system?

Mathematics
1 answer:
Sergio039 [100]3 years ago
7 0

Answer:

Step-by-step explanation:

Which system of equations is equivalent to this system?

6x  + 4y = 126x  + 4y = 12

  3x + y = 8   3x + y = 8

−4x  + 4y = 48-4x  + 4y = 48

    3x + y = 8     3x + y =8

4x  + 4y = 484x  + 4y = 48

  3x + y = 8   3x + y = 8

<h2>2x  + 4y = 122x  + 4y = 12</h2><h2>   3x + y = 8</h2>
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Use the drop-down menus to choose steps in order to correctly solve 3+4d−14=15−5d−4d for d.
Kisachek [45]

Answer:

d=2

Step-by-step explanation:

SHOWN BELOW

8 0
3 years ago
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Whoever helps gets brainlyess answer and it's worth 10 points :)
Anna71 [15]
Since he is using 3x more flower than the original, you would multiply the 2 tsp by 3 as well

6tsp is the answer
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3 years ago
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A complex number z=a+bi had an absolute value of 3.28. What could the values of a and b be ? A.a=1.5,b=1.7 C.a=1.7,b=2.8
Levart [38]
The given complex number is ⇒ z = a + b i
The absolute value of z = √( a² + b² ) = 3.28
So, we will check which of the options will give 3.28

<span>( A) IF ⇒⇒ a=1.5 and b=1.7
</span>
<span>∴ √( a² + b² ) = √( 1.5² + 1.7²) = √5.14 ≈ 2.27
</span>
===================================

<span>(B) IF ⇒⇒ a=1.5 and b=3.3
</span>
<span>∴ √( a² + b² ) = √(1.5² + 3.3²) = √13.14 ≈ 3.62
</span>
====================================

<span>(C) IF ⇒⇒ a=1.7 and b=2.8
</span>
<span>∴ √( a² + b² ) = √(1.7² + 2.8²) = √10.73 ≈ 3.28
</span>
====================================

<span>(D) IF ⇒⇒ a=2.8 and b=3.3
</span>
∴ √( a² + b² ) = √(2.8² + 3.3²) = √18.73 ≈ 4.33
=====================================
So, the correct answer is option (C) <span>a=1.7,b=2.8</span>
4 0
3 years ago
Percy solved the equation x2 + 7x + 12 = 12. His work is shown below. Is Percy correct? Explain.
antoniya [11.8K]
= > x² + 7x + 12 = 12

= > x² + ( 4 + 3 )x + 12 = 12

= > x² + 4x + 3x + 12 = 12

= > x( x + 4 ) + 3( x + 4 ) = 12

= > ( x + 4 ) ( x + 3 ) = 12


Percy did correct till this step. But by doing like this, Percy can't get the values of the variable x.



Percy should follow the following steps :

= > x² + 7x + 12 = 12


Add -12 on both sides,


= > x² + 7x + 12 - 12 = 12 - 12

= > x² + 7x = 0

= > x( x + 7 ) = 0

= > ( x = 0 ) or ( x + 7 = 0 )

= > ( x = 0 ) or ( x = - 7 )



Hence, required value(s) of x is 0 or -7
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8 0
3 years ago
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What numbers are 1.4 units from −3.2 on a number line? pick one from both sets of answers
Fantom [35]

First, add 1.4 to the number given.

-3.2 + 1.4 = 1.4 - 3.2 = -2.2

a.-2.2 is one of your answer

Next, subtract 1.4 to the number given

-3.2 - 1.4 = -4.6

a.-4.6 is your next answer

a. -2.2, a. -4.6 are your two answers

hope this helps

8 0
3 years ago
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