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Yuki888 [10]
3 years ago
15

The polynomial below is a perfect square trinomial of the form A2 - 2AB + B2.

Mathematics
2 answers:
sertanlavr [38]3 years ago
8 0
Yes the statement is true.
irakobra [83]3 years ago
5 0

Answer:

True

Step-by-step explanation:

Given: 9x^2-30x+25

We have to write the given polynomial in perfect square nominal.

A^2-2AB+B^2

We can factor it like

A^2-2AB+B^2=(A-B)^2

It is perfect square trinomial.

9x^2-30x+25

We have to make perfect square first and last term.

9x^2\rightarrow (3x)^2\rightarrow A

25\rightarrow 5^2\rightarrow B

9x^2-30x+25\Rightarrow (3x)^2-2\cdot 3x\cdot 5+5^2

Hence, The given polynomial is in perfect square trinomial.

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The product of 5 and g
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Answer:

5g

Step-by-step explanation:

6 0
3 years ago
Can someone help me
Alex_Xolod [135]

Answer:

Su=10

Explaination:

So from s to u on the nunebr line is worth 2x-12. So what is s to u worth? Well. S to t on the number line = x-7. T to u =6. And 2 x is worth 12 more than s to u, using th e expression. X has to be at least 8 because otherwise the x-7 wouldn't work, and u might get s to u = 0 or a negative number.

Say x was 13, then 13 - 7 =6. So S to t =6. And r to u =6. So s to u =12. (6+6). Then check if the expression fits this answer of 12. 2x - 12. 2x = 26. 26-12=14, which doesn't match.

Let's try 14. 14-7=7. Then s to u = 7+6=13. The expression: 2x= 28. 28-12=16. 13 and 16 dont match. So we have got further away from what we need. Why don't we try going in the opposite direction. Rather than testing 13 and +1, let's now - 1 and try 12.

If x=12, then s to t =12-7=5. And s to u =6+5=11. The expression: 2x=24.-12=12. We are very close now with 11 and 12.

Lets test x=11!

S to t = 11-7=4. 4+6=10. So s to u =10.

2x=22. 22-12=10. So the expression works and the number line measurements.

The answer is su=10 and x=11.

3 0
3 years ago
PLLLZZZZZZZ Help!!!
disa [49]

Answer:

The scatter plot is attached.

Step-by-step explanation:

In a scatter plot, we graph the independent variable on the x-axis and the dependent variable on the y-axis.

In this case, age is independent and weight is dependent.

This means the points we plot are:

(7, 50); (7, 60); (8, 65); (8, 70); (9, 70); (9, 80); (10, 75); and (10, 90).

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Nice to know how long parallelogram is 72 meters :)

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Path a for every 36 meters of horizontal distance , the vertical change is 14 meters
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Answer:

The grade for path a is 257.1428571%

The grade for path b is 213.5%

Step-by-step explanation:

To find the grade of a slope, you take the rise over run then you multiply by 100.

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