3 years ago

Which statement about ABC and DEF is true?

Mathematics

1 answer:

Volgvan3 years ago

7 0

The answer to this problem is c

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What should be added to twice a rational Number -7/3to get 3/7<br>

saul85 [17]

Answer:

107/21

Step-by-step explanation:

re - phrase the question algebraically:

-14/3 + y = 3/7

LCM of 3 and 7 = 21

-98/21 + y = 9/21

what should be added to -98 to make 9?

answer: 107

therefore answer: 107/21

Hope this helps.

Good Luck

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4 years ago

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Nataliya [291]

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3 years ago

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IrinaK [193]

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For what value(s) of k is the linear system consistent? (Enter your answers as a comma-separated list.)

AleksAgata [21]

Answer:

Step-by-step explanation:

Given

$6x_1-9x_2=8$

$9x_1+kx_2=-1$

The given system is $AX=B$ can be represented by

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The given system is consistent when determinant of A is not equal to zero

$|A|$

$|A|=6k-(-81)=6k+81$

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i.e. system is consistent for all value of k except $k=\frac{-27}{2}$

$R-\frac{-27}{2}$

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He formula for the circumference of a circle is C = 2r, where r is the radius and C is the circumference. The equation solved fo

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I think the answer is r=8..
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