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3 years ago

B2 - 7b + 12 = 0

Mathematics

2 answers:

olga_2 [115]3 years ago

6 0

B2-7b+12=0
(b-3)(b-4)=0
b= 3 or 4

JulijaS [17]3 years ago

3 0

Answer: (b - 4)(b - 3); b = 4 and 3

Step-by-step explanation:

ima assume these are exponents since you didnt care to correctly write the equation.

What two numbers multiply to equal 12, but add to equal -7? That's -4 and -3

So the factored form of this trinomial is (b - 4)(b - 3) = 0. Make each of these expressions equal to 0 in order to get your answer.

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At a hot air ballon festival, Erica spots a red ballon due east at an angle of elevation of 36 degrees. She turns due west and s

gulaghasi [49]

Answer:

Step-by-step explanation:

Given

Balloon in the east makes an angle of elevation of $36^{\circ}$ and is at height of 461 m

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and net height of Blue balloon is 294.4 m

using trigonometry

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3 years ago

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Dmitry_Shevchenko [17]

Answer:

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Step-by-step explanation:

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3 years ago

How do i check an equation for extraneous solutions?

Marina86 [1]

Example:

$\sqrt x(x+1)=0$

This suggests two solutions, $x=0$ and $x=-1$ .

However, upon plugging these solutions back into the equation, you get

$\sqrt0(0+1)=0(1)=0$

which checks out, but

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3 years ago

Read 2 more answers

(m+3n) ^2 please help me solve this question, I really need it

Charra [1.4K]

Answer:

=m2+6mn+9n2

Step-by-step explanation:

=(m+3n)(m+3n)

=(m)(m)+(m)(3n)+(3n)(m)+(3n)(3n)

=m2+3mn+3mn+9n2

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