For f(x) = 4x2 + 13x + 10, find all values of a for which f(a) = 7.

Mathematics

1 answer:

sammy [17]2 years ago

4 0

Answer:

0.84

Step-by-step explanation:

4x2+13a+10=7

13a=7-10-8

13a=-11

a=-11:13

a=0.84

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Does 25/60 and 8/20 form a proportion ?

notka56 [123]

Answer:

No.

Step-by-step explanation:

Change it so that both fractions would have the same denominator. Note that what you do to the denominator, you must also do to the numerator.

Multiply 3 to both the numerator & denominator of 8/20

(8/20)(3/3) = 24/60

24/60 ≠ 25/60 ∴ these 2 fractions are not proportional.