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777dan777 [17]
2 years ago
15

Round 79.045 to the nearest tenth

Mathematics
2 answers:
ELEN [110]2 years ago
5 0

Answer:79.50

Step-by-step explanation:

Georgia [21]2 years ago
3 0
79.0 because the number in the hundredths is less than 5
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If y= -4 when x=2, find y when x=-6.
chubhunter [2.5K]

Answer:

y=12

Step-by-step explanation:

2*-2=-4

-6*-2=12

y=12

6 0
3 years ago
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Solve the following equation, using the Bhaskara formula: x² - 5x + 6 = 0
kramer

    x^2-5x+6=0

    x=\frac{-(-5)\pm\sqrt{(-5)^2-4\times1\times6}}{2\times1}\Leftrightarrow

\Leftrightarrow x=\frac{5\pm\sqrt{25-4\times6}}{2}\Leftrightarrow

\Leftrightarrow x=\frac{5\pm\sqrt{25-24}}{2}\Leftrightarrow

\Leftrightarrow x=\frac{5\pm\sqrt{1}}{2}\Leftrightarrow

\Leftrightarrow x=\frac{5\pm1}{2}\Leftrightarrow

\Leftrightarrow x=\frac{5-1}{2}\;\;\;\vee\;\;\;x=\frac{5+1}{2}\Leftrightarrow

\Leftrightarrow x=\frac{4}{2}\;\;\;\vee\;\;\;x=\frac{6}{2}\Leftrightarrow

\Leftrightarrow x=2\;\;\;\vee\;\;\;x=3

Answer:  x\in\{2\;;\;3\}

4 0
3 years ago
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(Show full work please) Carter spots an airplane on radar that is currently approaching in a straight line, and
Otrada [13]

Consult the attached diagram.

In the larger triangle,

tan(16°) = (7250 ft) / (<em>x</em> + <em>y</em>)

and in the smaller triangle,

tan(26°) = (7250 ft) / <em>y</em>

You want to solve for <em>x</em>.

From the first equation (I'm ignoring units from here on, all distances are measured in ft), you have

(<em>x</em> + <em>y</em>) tan(16°) = 7250

<em>x</em> tan(16°) + <em>y</em> tan(16°) = 7250

<em>x</em> tan(16°) = 7250 - <em>y</em> tan(16°)

<em>x</em> = 7250 cot(16°) - <em>y</em>

<em />

From the second equation,

<em>y</em> = 7250 cot(26°)

Solving for <em>x</em> gives

<em>x</em> = 7250 cot(16°) - 7250 cot(26°)

<em>x</em> = 7250 (cot(16°) - cot(26°))

<em>x</em> ≈ 10,433 ft

8 0
3 years ago
How much would you pay for 5 apples at the rate of $6.60 a dozen?
V125BC [204]

Answer:

You would pay $2.75

Step-by-step explanation:

a dozen = 12

6.60 / 12 = $0.55

0.55 x 5 = 2.75

7 0
2 years ago
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Difference of squares<br> 9x^2-4
Andrew [12]
(3x+2)(3x-2)

Hope that helps
5 0
2 years ago
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