Seven less than the sum of p and t is as much as 6.

Mathematics

1 answer:

leva [86]3 years ago

5 0

P + t -7 =6

10+3-7=6

10+3=13

13-7=6

P=10 t=3

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Which is equivalent

Citrus2011 [14]

For this case we must find an expression equivalent to:

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By definition of power properties we have to:

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So, rewriting the expression we have:

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By definition of multiplication of powers of the same base, we put the same base and add the exponents:

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Answer:

Option B

7 0

4 years ago

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Use the discriminant to determine which graph could represent the equation. y=x^2+4x+5

lidiya [134]

ANSWER

See attachment.

EXPLANATION

The given function is

$y = {x}^{2} + 4x + 5$

When we compare this function to

$y = a{x}^{2} + bx + c$

We have a=1, b=4 and c=5

We put this inside the formula for the discriminant, which is

$D = {b}^{2} - 4ac$

$D = {4}^{2} - 4(1)(5)$

$D = 16 - 20 = - 4$

Since the discriminant is negative, the function has no x-intercepts.

The graph of this function is the one hanging in the air above the x-axis and opens upwards.