2 years ago

HELP ME PLEASE!!!!!!!!

Mathematics

2 answers:

ioda2 years ago

8 0

Answer:

the answer is 9×9 and -9×-9

GREYUIT [131]2 years ago

6 0

The answer is 9x9 and -9x-9

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For any perfect square trinomial (quadratic), the constant term (last term) must be positive.

Ronch [10]

Answer:

For the perfect square trinomial (quadratic) i.e. $\left(x\:+\:3\right)^2$ , the constant term (last term) is positive.

Step-by-step explanation:

"Perfect square trinomials" are termed as the quadratics that are the outcomes of squaring binomials.

For example:

$\left(x\:+\:3\right)^2$

$\mathrm{Apply\:Perfect\:Square\:Formula}:\quad \left(a+b\right)^2=a^2+2ab+b^2$

$a=x,\:\:b=3$

$=x^2+2x\cdot \:3+3^2$

$=x^2+6x+9$

Therefore, for the perfect square trinomial (quadratic) i.e. $\left(x\:+\:3\right)^2$ , the constant term (last term) is positive.

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D=The graph touches at the x-axis at x=-4 and crosses the x-axis at x=1

Step-by-step explanation:

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3 years ago

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3 years ago

65 - 14 = 65-5-______

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Step-by-step explanation:

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3 years ago

Kate borrowed $400 from her friend. She will repay this amount plus 3 percent simple interest after one year. What is the total

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The answer is $412.

Let's first calculate simple interest. Simple interest (I) can be expressed as:
I = P * r * t
P - principal
r - rate
t - time period

It is given:
I = ?
P = $400
r = 3% = 0.03
t = 1 year

Therefore:
I = P * r * t = 400 * 0.03 * 1 = 12

The total amount Kate will repay is the principal amount (P) plus 3% simple interest (I):
P + I = 400 + 12 = $412

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