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3 years ago

Brenda has 3 apples and tila has 5 bananas how many more bananas are there then apples

Mathematics

1 answer:

galben [10]3 years ago

8 0

Answer:2

Step-by-step explanation: 5 - 3 = 2

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A rectangular poster is to contain 882 square inches of print. The margins at the top and bottom of the poster are to be 2 inche

Zinaida [17]

Answer:

L = 23 in

h = 46 in

Step-by-step explanation:

Let call " x " and " y " dimensions of the print area of the poster then:

882 = x*y and y = 882/x

We also know that dimensions of the poster is:

L = x + 2 in and h = y + 4 in

Therefore area of the poster is:

A(p) = ( x + 2 ) * ( y + 4 ) And area as function of x is:

A(x) = ( x + 2 ) * ( 882/x + 4 )

A(x) = 882 + 4*x + 1764 /x + 8

Taking derivatives on both sides of the equation we have:

A´(x) = 4 - 1764/x²

A´(x) = 0 ⇒ 4 - 1764/x² = 0 ⇒ 4*x² - 1764 = 0

x² = 1764 / 4

x² = 441

x = 21 in and y = 882/x y = 42

The second derivative A´´(x) is > 0 ( the second term changes its sign to +) there is a minimum for the function at the point x = 21

As x and y are dimensions of the printing area of the poster, dimensions of the poster are

L = x + 2 = 21 + 2 = 23 in and

h = y + 4 = 42 + 4 = 46 in

4 0

3 years ago

The corner grocery store sells oranges for $2.18 per pound. Select the stores that sell oranges at a lower unit price. Mark all

ycow [4]

Answer:

A , B, and D

Step-by-step explanation:

you find the unit prices by dividing the cost per pound

a bc it sells them at $1.52 per pound

b bc it sells them at $1.49 per pound

NOT c because it sells them at $3.14 per pound

D because it sells them at $1.88 per pound

7 0

2 years ago

Please someone give me an actual answer.

barxatty [35]

Answer:

option 2

Step-by-step explanation:

3 0

3 years ago

Please can anyone send a question in law of indices I really need it now

DaniilM [7]

Answer:

I think this is a pretty good question of law of indices

Step-by-step explanation:

Given that

$(9^p)(27^q)=3^n\\$

a) express n in terms of p and q ,

b) hence if p = 1 and q = 2 find the value of n

Solution to part a)

$(9^p)(27^q)=3^n\\\\$

Simplify the equation and how do we do that? As we can see that 9 can also be written as 3^2 and 27 can be written as 3^3 we can rewrite the following equation like this,

$(3^2)^p(3^3)^q=3^n\\$

now we multiply p with 2 and

multiply q with 3 respectively,

$(3^{2p})(3^{3q})=3^n\\$

now since the bases are same and are multiplying the exponents will add themselves like this, in this equation the number 3 is the base

$3^{2p+3q}=3^n\\$

now since the bases on the left hand side and on the right hand side are equal the exponents will also be equal so now,

$2p+3q=n\\$

hence n is expressed in terms of p and q

Solution to part b)

if p = 1 and q = 2 we plug in these values in the above equation we found for n

n = 2p + 3q

n = 2(1) + 3(2)

n = 2 + 6

n = 7

6 0

2 years ago

Solve for k<br> 1/4K=3(-1/4K +3)

Gre4nikov [31]

Answer:

k= 9

Step-by-step explanation:

hope this helps you

7 0

3 years ago