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3 years ago

Maria bought one package of fresh chives

Mathematics

1 answer:

Semmy [17]3 years ago

6 0

Answer:

Step-by-step explanation:

$2x=$8

x=$8÷$2

x=4

We know 1 package cost $2, $2+$2+$2+$2=$8

4times $2 equal to $8

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9/20

NISA [10]

For this case we must find the solution of the following quadratic equation:

$x ^ 2 + 5x + 7 = 0$

Where:

$a = 1\\b = 5\\c = 7$

Then, the solution is given by:

$x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}$

Substituting the values:

$x = \frac {-5 \pm \sqrt {5 ^ 2-4 (1) (7)}} {2 (1)}\\x = \frac {-5 \pm \sqrt {25-28}} {2}\\x = \frac {-5 \pm \sqrt {-3}} {2}$

By definition we have: $i ^ 2 = -1$

$x = \frac {-5 \pm \sqrt {3i ^ 2}} {2}\\x = \frac {-5 \pm i \sqrt {3}} {2}$

Thus, we have two complex roots.

Answer:

The equation has no real roots.

4 0

3 years ago

Use radical notation to rewrite each expression and simplify<br> 9 3/2

scoundrel [369]

Answer:

$9^{\frac{3}{2}}=\sqrt{9^3}=27$

Step-by-step explanation:

The fractional exponent m/n is often translated to radical form as ...

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

In this case, I find it easier to evaluate as ...

$x^{\frac{m}{n}}=(\sqrt[n]{x})^m=\boxed{(\sqrt{9})^3=3^3=27}$

7 0

3 years ago

(6x + 4)

baherus [9]

I didn't understood the question in my view the question must be (6x + 4) = 82

Answer:

x = 13

Step-by-step explanation:

6x = 82 - 4

6x = 78

x = 78/6

therefore; x = 13

6 0

3 years ago

Which is the answer for -1/3y + 4 = 3

N76 [4]

2/1

Step-by-step explanation:

_1/3y=_1

y=_1+3/1

y=2/1

4 0

3 years ago

Food bill: $36 Tip: 20% Sales tax (on food only) 6%

olasank [31]

Answer: To figure out the tip, you need to find 20% of $52.60.

0.2×52.6=10.52

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers