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Nat2105 [25]
3 years ago
8

Find the solution to the equation below.

Mathematics
1 answer:
Andreyy893 years ago
3 0

Answer:

B and D

Step-by-step explanation:

The quadratic formula is x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}. Here a=20, b=-26, and c=8.

Substitute and you'll have:

x=\frac{-b+/-\sqrt{b^2-4ac} }{2a} =\frac{26+/-\sqrt{26^2-4(20)(8)} }{2(20)}=\frac{26+/-\sqrt{676-640} }{40)}

\frac{26+/-\sqrt{36} }{40}=\frac{26+/-6 }{40}

This means the solutions are 26 - 6/ 40 and 26 + 6/ 40.

It simplifies to 1/2 and 4/5.

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If f(x) = x+3 and g(x) = VX-1,<br> what is (fºg)(26)?
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Answer:

26V + 2

Step-by-step explanation:

This is the same as saying f(g(x)), where x = 26

First, lets figure out what g(x) is equal to when x = 26

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Now we input 26V - 1 into f(x) for x

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Explain how your knowledge of place value helps you divide a number in the thousands by whole numbers to 10 give an example to s
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Answer with Step-by-step explanation:

The value of a digit due to its position in a number is called as place value.

For example, there's a number

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2 is in ten thousands place and it has a place value of 20,000

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4 is in hundreds place and it has a place value of 400

5 is in tens place and has a place value of 50

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23450 divided by 10 = 2345

Now,

2 is in thousands place and it has a place value of 2,000

3 is in hundreds place and it has a place value of 300

4 is in tens place and it has a place value of 40

5 is in unit or ones place and has a place value of 5

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120

Step-by-step explanation:

Add more detail if it is a different question

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