4 years ago

A small class has

Mathematics

2 answers:

Vika [28.1K]4 years ago

7 0

actually the answer is 1/4

Afina-wow [57]4 years ago

3 0

Probability that the first student chosen will be a boy is 6/9 (0.66%)
Probability that the second student chosen will be a girl is 3/8 (0.37%)

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On the dashboard of Josh's car, there is a clock and an odometer. The odometer tells how many total miles the car has been drive

QveST [7]

Answer:

josh glances at his car's dashboard

Step-by-step explanation:

7 0

3 years ago

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If a△ b=a2+ab−b2, then find (3 △ 2) △ 13. WILL MARK BRAINLIEST PLS HELP!!!!!!!!!!!!!!!!!!!!

Olenka [21]

Answer:

The answer is

Step-by-step explanation:

a ∆ b = a² + ab + b²

(3 ∆ 2)

a = 3 b = 2

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3 years ago

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Find an equation in standard form for the hyperbola with vertices at (0, ±10) and asymptotes at y = ± five divided by six times

blagie [28]

Refer to the diagram shown below.

In the diagram, the two vertices are located at (0, a) and (0, -a).
The equation for the parabola is
$\frac{y^{2}}{a^{2}} - \frac{x^{2}}{b^{2}} =1$
The asymptotes have the equations
$y= \pm \frac{a}{b} x$

For the given problem,
The vertices are located at (0, +/-10).
Therefore a = 10.

The asymptotes are
$y = \pm \frac{5}{6} x$
Therefore
$\frac{a}{b} = \frac{10}{b} = \frac{5}{6} \\\\ 5b = 60 \\\\ b =12$

Answer:
The equation of the parabola is
$\frac{y^{2}}{100} - \frac{x^{2}}{144} =1$