3 years ago

Can you answer these questions as fast as you can??

Mathematics

1 answer:

Wewaii [24]3 years ago

6 0

70

The information given is that for every 2 students studying physics 3 were studying chemistry

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Find the lcm of 7 and 12 show your work.

babymother [125]

The factors of 7 are 7, 1.
The factors of 12 are 12, 6, 4, 3, 2, 1.
12*7=84

7 0

3 years ago

A certain stylist charges $15 for a haircut and $30 for hair coloring. A haircut takes on average 30 minutes, while coloring tak

dalvyx [7]

Haircuts be x
hair coloring be y

$\\ \sf{:}\Rrightarrow 15x+30y\geqslant 150$

$\\ \sf{:}\Rrightarrow x+y\geqslant 10$

And

$\\ \sf{:}\Rrightarrow 0.5x+2y\geqslant 8$

Attached

(8,2)

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3 years ago

What is the<br> area of the rhombus?

cluponka [151]

Answer:

Area=36

Step-by-step explanation:

Area of rhombus: diagonal 1 x diagonal 2 divided by 2.

To find the area of a rhombus, you need to find the length of both diagonals(which is the distance between 2 points across from each other).

First, find the distance between -8 and 4 which is 12.

Next, find the distance between -1 and -7 which is 6.

12 x 6 =72

72/2=36

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3 years ago

Expand x^3 minus y^3

Lubov Fominskaja [6]

Answer:

$x^{2}$ - $y^{2}$

(x-y)( $x^{2}$ + xy + $y^{2}$ )

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3 years ago

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Pls help will mark brainliest

tatuchka [14]

Answer: subtract 10

Step-by-step explanation: 25 - 10 =15

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3 years ago