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Ne4ueva [31]
3 years ago
7

Determine the type and number of solutions of −4x2 − 3x + 7 = 0

Mathematics
1 answer:
Mrrafil [7]3 years ago
5 0
Since 3^2 - (-4)(7) must be bigger than 0

Then it has two real roots.
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Name a possible value for w that is a solution to w > 30, but is not a solution to w < 50. Thank you in advance for the he
MrMuchimi

Answer:

i dont know

Step-by-step explanation:E

4 0
2 years ago
What is x in the equation 5^{3-2x} = 5^{-x} <br> A) x = 3<br> B) x = 1<br> C) x = -1<br> D) x = -3
Naily [24]

Answer:

The answer is A) x equals 3

8 0
3 years ago
The frequency of the musical note E3 is about 164.81 Hz.
laiz [17]
A perfect fifth above a note has a frequency ratio of 3 to 2.
Therefore, we can set the proportion:
164.81 : x = 2 : 3

which gives:
x = <span>164.81 </span>× 3 ÷ 2
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6 0
3 years ago
Read 2 more answers
Can you help me to solve this problem
storchak [24]

Answer:

I want to show you how to do this as well, the formula you are working with is a^2+b^2=c^2

Step-by-step explanation:

1.) 8^2+b^2=12^2

64+b^2=144

subtract 64 from both sides

b^2=80

take the square root of 80 and you get

b= 8.9

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6 0
3 years ago
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lozanna [386]

Both sides equal each other. Do you want to know how?

√(4 + 16 + 16√3 + 12) = 4√(2 + √3)

Surd Rule: Numbers with the same surd can be added together. Therefore, all whole integers can be added together.

√(4 + 16 + 16√3 + 12)

√((4 + 16 + 12 )+ 16√3 ) =

√(32 + 16√3)

Simplify by Factorising the common factor - 16

√(32 + 16√3) ÷ 16

√(16 (2 + √3))

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√16 = 4

√4 (2 + √3)

3 0
3 years ago
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