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lubasha [3.4K]
3 years ago
15

Which numbers are factors of both 12 and 42?

Mathematics
1 answer:
FrozenT [24]3 years ago
3 0

Answer:

12

Step-by-step explanation:

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How to do this question plz ​
bixtya [17]

252mmSquared

Step-by-step explanation:

28+28=56

74-56=18

18÷2=9

9×28=252

7 0
3 years ago
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Ruthie wants to construct a line that passes through point P and is perpendicular to AB. What should Ruthie do first?
borishaifa [10]
Ruthie wants to construct a line that passes through point P and is perpendicular to AB. What should Ruthie do first?

A) measure the length of segment AB with her compass
B) construct two intersecting arcs with centers A and B
C) use her straight-edge to draw a line from point P to point A
☆☆☆D) construct an arc with center P that intersects segment AB in two points
8 0
3 years ago
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If a quadratic equation has 4-i as a solution, what must the other solution be?
Luden [163]

Answer:

4+i

Step-by-step explanation:

A complex number usually took the form a+bi where a and b are real numbers and 'i' represents an imaginary number. For a quadratic equation, the complex roots for the root of a quadratic equation took the form known as complex conjugates. The complex conjugates are formed by changing the sign of the imaginary part.

SO, if a quadratic equation has 4-i as a solution, the other solution must be 4+i.

6 0
2 years ago
6x + 4y=10 12x + y= -29
Olin [163]

Answer: x=-3    y=7.

Step-by-step explanation:

\displaystyle\\\left \{ {{6x+4y=10\ \ \ \ \ (1)} \atop {12x+y=-29\ \ \ \ (2)}} \right.\\  We\  multiply\  both\  sides\  of\  equation\  (1)\  by\  -2:\\\left \{ {{(-2)*6x+(-2)*4y=(-2)*10} \atop {12x+y=-29}} \right. \\\\\left \{ {{-12x-8y=-20} \atop {12x+y=-29}} \right. \\We\  summarize\  equations\  (1)\  and\  (2):\\-7y=-49\\-7*y=-7*7\\Divide\  both\  sides\  of\  the\  equation\  by\  -7:\\y=7.\\We\  substitute\  the\  value\  of\  y\  into \ equation\  (1):\\6x+4*7=10\\6x+28=10\\6x+28-28=10-28\\6x=-18\\6*x=6*(-3)\\Divide\  both\  sides\  of\  the\  equation\  by\  6:\\x=-3.

3 0
2 years ago
Factor: 4x^2-12x+9=0
Andreas93 [3]
Use formula a^2-2ab+b^2=(a-b)^2

4x^2-12x+9
\\(2x)^2-2(2x)(3)+3^2
\\(2x-3)^2
6 0
3 years ago
Read 2 more answers
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