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andrew11 [14]
3 years ago
8

2) Write the equation of a parabola whose vertex is (-3,5) and has a y-intercept of 2

Mathematics
1 answer:
adoni [48]3 years ago
6 0
Answer: Y=(-1/3)x^2-2x+2

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If the length of a diagonal of a square is a, what is the length of its side?
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problem decoded dude

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3 years ago
If for two non-zero vectors a,b : ∣a+b∣=∣a−b∣ then angle between them is:______a. 0b. 45c. 60d. 90
Eddi Din [679]

Answer:

90^\circ

Step-by-step explanation:

Given two non zero vectors, \vec a, \vec b.

Let the angle between the two vectors = \theta

Given that:

|\vec a+\vec b|=|\vec a-\vec b|

Let us have a look at the formula for magnitude of addition of two vectors:

|\vec x+\vec y|=\sqrt{x^2+y^2+2xycos\theta}

Where \theta is the angle between the two vectors.

formula for magnitude of subtraction of two vectors:

|\vec x-\vec y|=\sqrt{x^2+y^2-2xycos\theta}

As per the given condition:

\sqrt{a^2+b^2+2abcos\theta}=\sqrt{a^2+b^2-2abcos\theta}

Squaring both sides:

a^2+b^2+2abcos\theta=a^2+b^2-2abcos\theta\\\Rightarrow 2abcos\theta=-2abcos\theta\\\Rightarrow cos\theta = -cos\theta\\\Rightarrow 2cos\theta = 0\\\Rightarrow cos\theta = 0\\\Rightarrow \theta = 90^\circ

So, the angle between the two vectors is: 90^\circ

7 0
2 years ago
A company has to buy computers and printers. Each computer, x, costs $595 and each printer, y, costs
fenix001 [56]
Try and use Photomath
4 0
3 years ago
Read 2 more answers
El día 12 de diciembre en Moscú se registró una temperatura de 13° bajo cero, a esa misma hora, en buenos Aires hacía una temper
timofeeve [1]

Answer:

A. 38\ \text{grados}

Step-by-step explanation:

La temperatura en Moscú es de 13 grados bajo cero. Entonces, la temperatura es de -13 grados.

La temperatura en Buenos Aires es de 25 grados bajo cero. Entonces, la temperatura es de 25 grados.

La diferencia de temperatura entre las dos ciudades es

25-(-13)=38\ \text{grados}

La diferencia de temperatura entre las dos ciudades en un momento dado es  38\ \text{grados}.

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3 years ago
Any clue? Find the equation of the line shown.
icang [17]

Answer:

Y= -X + 9 Can be found by trials

4 0
2 years ago
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