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3 years ago

13 mins left oh gees oh gosh

Mathematics

1 answer:

gavmur [86]3 years ago

7 0

Answer:

I think that it is a quadratic

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71/9 converted to a mixed mumber

adell [148]

$\frac{71}{9} =\frac{63 + 8}{9} = \frac{63}{9} + \frac{8}{9} = 7 + \frac{8}{9}\\\\= \boxed{\bf{7\frac{8}{9}}}$

8 0

3 years ago

Read 2 more answers

Write the equation of the conic section satisfying the given conditions. focus at the pole, e = 3/4, horizontal directrix 2 unit

hjlf

Answer:

The equation in the polar form is;

$r = \dfrac{6}{4 + 3 \cdot sin(\theta)}$

Step-by-step explanation:

e = 3/4 > 1, we have an hyperbola

The polar equation of a conic is of the form;

For vertical directrix

$r = \dfrac{k \cdot e}{1\pm e \cdot cos (\theta)}$

For horizontal directrix

$r = \dfrac{k \cdot e}{1\pm e \cdot sin(\theta)}$

Where;

k = Distance from the focus to the directrix = 2

We have;

$r = \dfrac{2 \cdot \dfrac{3}{4} }{1 + \dfrac{3}{4} \cdot sin(\theta)}$

$r = \dfrac{\dfrac{3}{2} }{1 + \dfrac{3}{4} \cdot sin(\theta)}$

Which gives the equation in the polar form as follows;

$r = \dfrac{6}{4 + 3 \cdot sin(\theta)}$ .

8 0

3 years ago

1. Tickets to the school musical cost $3 for students and $5 for

nika2105 [10]

Answer:

Your answer.

X = 176.15

Y = 252.3

X = student

Y= Non student

Thank you. And give my answer as Brainlist answer. Follow me for more

Step-by-step explanation:

4 0

3 years ago

Help plz I don’t understand

otez555 [7]

Answer:

600 m²

Step-by-step explanation:

Area = 3.14 × 14 × 14 = 615.44

rounding off :

600 m²

7 0

3 years ago

Find the surface area of a regualar pyramid that is a pentagonal pyramid with the area of a base is is 440.4mm and a height of 2

Inessa [10]

Answer:

1240.4 mm²

Step-by-step explanation:

The surface area of a pyramid = Area of the all sides + Area of base

Each side is a triangle.

With a regular pentagonal pyramid, the area of each triangle is

$A = \frac{1}{2}\times\text{base}\times\text{slant height}$

For the 5 triangles,

$A = 5\times\frac{1}{2}\times\text{base}\times\text{slant height} = \frac{1}{2}\times5\times\text{base}\times\text{slant height}$

Substituting given values,

$A = 5\times\frac{1}{2}\times16\ \text{mm}\times20\ \text{mm} = 800 \text{mm}^2$

Area of base = 440.4 mm²

Surface area of a pyramid = 800 + 440.4 mm² = 1240.4 mm²

6 0

3 years ago