3 years ago

Which of the following are an x-intercept?

Mathematics

1 answer:

Vadim26 [7]3 years ago

4 0

Answer for question 2:

x= -5

Step-by-step explanation:

0= 6x +30

-6x= 30

x= 30/-6

x= -5

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Giải phương trình sau: sinx=1/2

cupoosta [38]

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Step-by-step explanation:

$\sin \left(x\right)=\frac{1}{2}$

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3 years ago

Solve (2a^x + 1/2b^x)^2

alexira [117]

Answer:

$(4a^{2x} )+2a^{x} b^{x} + \frac{b^{2x} }{4}$

Step-by-step explanation:

The given equation is

$(2a^x + \frac{1}{2}b^{x} } )^2$ ...........(i)

we know the formula i.e.

$(a+b)^{2}= a^{2}+ b^{2} +2(a)(b)$

Applying this formula on equation (i) gives

= $(2a^{x} )^{2} +(\frac{1}{2})^{2}*(b^{x} )^{2} + 2 (2a^{x} )(\frac{1}{2} b^{x})$

Opening the sqaure gives and canceling $\frac{1}{2}$ with 2 gives us

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4 years ago