2.

Mathematics

1 answer:

Rom4ik [11]3 years ago

4 0

Is E....................

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Please help me, i will mark the brainliest pls!

Burka [1]

No because if you could use distributive property you would do 5*7 then 5*10 then you would get 35*50 which equals 1,750 and if you do it like it’s set up you would do 7*10 first cause PEMDAS so parentheses first so 7*10 is 70 then 70*5 is 350 and that’s not even close to the other answer so no you can’t .

6 0

3 years ago

A coffee shop offers coffee either iced or hot in sizes small, medium, and large. The flavor options are vanilla,

Serggg [28]

Answer:

1/18

Step-by-step explanation:

There are 2 x 3 x 3 = 18 combinations of coffee. Only one is large, iced and

hazelnut

So, the probability is 1/18

5 0

3 years ago

If 1 - cosA= 1/2 show that tan²A + 4sin²A = 6

pav-90 [236]

$\text{Given that,}\\\\1-\cos A = \dfrac 12\implies \cos A = 1-\dfrac 12 = \dfrac 12\\\\\text{L.H.S}\\\\=\tan^2 A + 4 \sin^2 A\\\\=\dfrac{\sin^2 A}{\cos^2 A}+4(1-\cos^2 A)\\\\\\=\dfrac{1-\cos^2 A}{\cos^2 A} +4-4\cos^2 A\\\\\\=\dfrac{1-\left( \dfrac 12 \right)^2 }{\left(\dfrac 12 \right)^2 } +4 -4 \left( \dfrac 12 \right)^2\\\\\\=\dfrac{1- \dfrac 14}{\dfrac 14}+4-4\cdot \dfrac 14\\\\\\=\dfrac{\tfrac 34}{\tfrac 14}+4-1\\\\\\=\dfrac 34 \cdot 4 +3\\\\=3+3\\\\=6\\\\=\text{R.H.S}$

3 0

2 years ago

HELP

ki77a [65]

It would be 1,800 because u need to multiply

6 0

3 years ago

Find the slope of a perpendicular line 2x-5=y

melomori [17]

Answer: slope(m) for this= 2
m=2

7 0

4 years ago

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