3 years ago

Y = x^2 − 3x + 8. axis of symmetry

Mathematics

1 answer:

dmitriy555 [2]3 years ago

5 0

Points-(0,6)
Equation- y=x^2+5
X=0 Y=5

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Sonji has $5.25 in nickels and dimes . The coin value can modeled by the equation 0.10+0.05n=5.25, where d represents the number

Lyrx [107]

63

.10d + .05n = 5.25

.10(21) + .05n = 5.25

2.1 + .05n = 5.25

.05n = 3.15

n = 3.15/.05

n = 63

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3 years ago

Plz help due tomorrow

8090 [49]

Answer:

-12x = -60

Step-by-step explanation:

-12x = -79+19

-12x = -60

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If you're good at logarithms please help me with question j on the bottom

Slav-nsk [51]

Step-by-step explanation:

$a) \\ log_{x}(15) \\ = log_{x}(3 \times 5) \\ = log_{x}3 + log_{x}5 \\ = 1.5 + 1.8 \\ = 3.3$

$b) \\ log_{x}(2) \\ = log_{x}(\frac{10}{5}) \\ = log_{x}10 - log_{x}5 \\ = 3 - 1.8\\= 1.2$

$e) \\ log_{x}(150) \\ = log_{x}(3 \times 5\times 10) \\ = log_{x}3 + log_{x}5+ log_{x}10 \\ = 1.5 + 1.8 + 3\\ = 6.3$

$f) \\ log_{x}(250) \\ = log_{x}( 5^2 \times 10) \\ = log_{x}5^2 + log_{x}10 \\ = 2log_{x}5 + log_{x}10 \\ = 2\times 1.8 + 3\\ = 3.6 + 3\\= 6.6$

3 0

3 years ago

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Rocco is doing an internship with a local carpenter. He is making $11.50 an hour. His total check for the month of November was

Zina [86]

You need to divide.
$879.75/ $11.50 = 76.5 hours is your answer

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3 years ago

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PLEASE HELP What is the radical form of the expression 423 ? 43−−√ 34−−√ 42−−√3 24−−√3

ira [324]

For this case we must express the number "423" in a radical way.

We have to, we can rewrite it as:

$423 = 9 * 47 = 3 ^ 2 * 47$

So, we have to:

$423 = \sqrt {3 ^ 2 * 47}$

By definition of properties of powers and roots we have:

$\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}$

So:

$423 = \sqrt {3 ^ 2 * 47} = 3 \sqrt {47}$

Answer:

$3 \sqrt {47}$

8 0

3 years ago