All categories

3 years ago

A grocery story sells one dozen ears of white corn for $2.40.What is the unit price for one ear of corn.

Mathematics

2 answers:

LiRa [457]3 years ago

6 0

It would be B - $0.20

Veseljchak [2.6K]3 years ago

4 0

Hey U Did pot the how many place in the dozen than I could tell u the Ans sorry

You might be interested in

15 liters increased by 60%

kicyunya [14]

15 liters increased by 60% is 24 liters.

8 0

3 years ago

Which graph represents the solution for the equation 5x-2=4

Jet001 [13]

You didnt list any graph?? Can you add it please :)

7 0

3 years ago

Read 2 more answers

If sinA=√3-1/2√2,then prove that cos2A=√3/2 prove that

Ivan

Answer:

$\boxed{\sf cos2A =\dfrac{\sqrt3}{2}}$

Step-by-step explanation:

Here we are given that the value of sinA is √3-1/2√2 , and we need to prove that the value of cos2A is √3/2 .

Given :-

• $\sf\implies sinA =\dfrac{\sqrt3-1}{2\sqrt2}$

To Prove :-

• $\sf\implies cos2A =\dfrac{\sqrt3}{2}$

Proof :-

We know that ,

$\sf\implies cos2A = 1 - 2sin^2A$

Therefore , here substituting the value of sinA , we have ,

$\sf\implies cos2A = 1 - 2\bigg( \dfrac{\sqrt3-1}{2\sqrt2}\bigg)^2$

Simplify the whole square ,

$\sf\implies cos2A = 1 -2\times \dfrac{ 3 +1-2\sqrt3}{8}$

Add the numbers in numerator ,

$\sf\implies cos2A = 1-2\times \dfrac{4-2\sqrt3}{8}$

Multiply it by 2 ,

$\sf\implies cos2A = 1 - \dfrac{ 4-2\sqrt3}{4}$

Take out 2 common from the numerator ,

$\sf\implies cos2A = 1-\dfrac{2(2-\sqrt3)}{4}$

Simplify ,

$\sf\implies cos2A = 1 -\dfrac{ 2-\sqrt3}{2}$

Subtract the numbers ,

$\sf\implies cos2A = \dfrac{ 2-2+\sqrt3}{2}$

Simplify,

$\sf\implies \boxed{\pink{\sf cos2A =\dfrac{\sqrt3}{2}} }$

Hence Proved !

8 0

3 years ago

An uber in Los Angeles charges $3.50 per mile and $2 for every person. If taxi cab ride for three people costs $20, how far did

Vsevolod [243]

Answer:

4 miles

Step-by-step explanation:

5 0

3 years ago

Why does math get so hard that you have an answer but you forget what your answer was because it was so so so so so so so so so

svetoff [14.1K]

Bc u dont write ur work down. If u actually take the steps to do the question it wont be that bad

8 0

3 years ago

Read 2 more answers