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3 years ago

I would like to know if I am solving correctly so far and what I do after this to continue solving.

Mathematics

1 answer:

12345 [234]3 years ago

4 0

$\bf A=\cfrac{13\cdot 3\sqrt{3}}{2}\implies A=\cfrac{39\sqrt{3}}{2}$

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a florist sold bouquets of red roses to 15 of the first 20 customers who came into his shop. What is the experimental probabilit

Nadusha1986 [10]

I think u have to do 120÷20=60
then 60×15=900
so he sold 900 flowers I'm not sure tho

4 0

3 years ago

(xy + 9y + 2) and (xy – 3)

Bezzdna [24]

Answer:

x^2y^2 +9xy^2-xy-27y-6

Step-by-step explanation:

(xy+9y+2) (xy-3)

Each term of second bracket will be multiplied with the terms of first bracket

= xy(xy+9y+2) -3(xy+9y+2)

= x^2y^2+9xy^2+2xy-3xy-27y-6

=x^2y^2+9xy^2-xy-27y-6

4 0

3 years ago

How do you know if two lines are parallel without a equation?

sesenic [268]

If they do not have solutions (intersections).
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7 0

3 years ago

Solve for x.<br> 3(2x + 5) = 33

Umnica [9.8K]

Answer:

x = 3

Step-by-step explanation:

3(2x + 5) = 33

3 * 2x + 3 * 5 = 33

6x + 15 = 33

6x = 33 - 15

x = 18 / 6

x = 3

6 0

3 years ago

15 points+brainliest!! please help asap, this is due tonight please!!

Masteriza [31]

Answer:

$x=\sqrt{13}$

Step-by-step explanation:

Base of the isosceles triangle = 4

Perpendicular of the triangle = 3

In an isosceles triangle , a perpendicular bisects a base equally. So, here the isosceles triangle consist of 2 right angled triangles.

In that right angled triangles,

Base = 4/2 = 2 (∵ A perpendicular divides a base into 2 equal parts. )

Perpendicular = 3

Hypotenuse = x

So , according to Pythagorean Theorem ,

$Hypotenuse = \sqrt{Base^2 + Perpendicular^2}$

Using all the values above into the formula gives :-

$x =\sqrt{2^2 + 3^2} = \sqrt{4+9} =\sqrt{13}$

3 0

3 years ago