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frozen [14]
3 years ago
15

Where to put parentheses on 15\3+2•11 to make the answer 27

Mathematics
1 answer:
Allisa [31]3 years ago
6 0

Answer:

It’s 15/3+(2•11)

Step-by-step explanation:

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A system of two linear inequalities is graphed as shown, where the solution region is shaded.
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Answer:

(-3,2) is located in the solution region.

Step-by-step explanation:

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I'm so clueless please help!
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Nothng to it just mark them

Step-by-step explanation:

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What is 88 less than the product 13 times a number x is less than or equal to -32.
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13x-88 ≤ -32
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Draw a quadrilateral with one pair of parallel sides and two right angles. Explain why this figure is a trapezoid.
Jlenok [28]

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Step-by-step explanation:i cant draw

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3 years ago
dos aviones parten de una ciudad con direcciones S32°E y E57°N¿ cuál es el angulo que forma sus direcciones?​
Elan Coil [88]

Answer:

El ángulo formado entre las dos direcciones es aproximadamente 115º.

Step-by-step explanation:

Las direcciones dadas en el enunciado significan lo siguiente:

S32ºE - <em>32º al este del sur.</em>

E57ºN - <em>57º al norte del este.</em>

Vectorialmente hablando, cada dirección es la siguiente:

S32ºE

A(x,y) = (\sin 32^{\circ}, -\cos 32^{\circ})

A(x,y) = (0.530, -0.848)

E57ºN

B(x,y) = (\cos 57^{\circ},\sin 57^{\circ})

B(x,y) = (0.545, 0.839)

El ángulo formado entre los dos vectores unitarios (\theta), medido en grado sexagesimales, puede determinarse mediante la siguiente ecuación vectorial:

\theta = \cos^{-1} \frac{A\,\bullet \,B}{\|A\|\cdot \|B\|}

Donde:

\|A\| - Norma de A(x,y).

\|B\| - Norma de B(x,y).

Si sabemos que A(x,y) = (0.530, -0.848), B(x,y) = (0.545, 0.839), \|A\| = 1 y \|B\| = 1, entonces el ángulo formado entre los dos vectores es:

\theta = \cos^{-1} \frac{(0.530)\cdot (0.545)+(-0.848)\cdot (0.839)}{(1)\cdot (1)}

\theta \approx 115^{\circ}

El ángulo formado entre las dos direcciones es aproximadamente 115º.

4 0
3 years ago
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