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3 years ago

HELPPP pls help so i can use my phone im hiding it rn

Mathematics

1 answer:

PolarNik [594]3 years ago

7 0

Answer:

#1 is 88

#2 is 100

#3 is 33476

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PLS HELP<br> AAAAAA <br> WILL MARK BRAINLIEST IF CORRECT

Usimov [2.4K]

Answer:

1:3

Step-by-step explanation:

Model = 5 inches

Real car = 15 feet

5:15

÷5

1:3

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3 years ago

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There are 30 oil paintings. The museum is hosting a show for july that features the oil paintings by different artists. All arti

Lesechka [4]

If each artist shows more than 1 painting. So the minimum number of painting per artist is 2. So if every artist show same number of painting so maximum number of artists is 30/2=15

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A farmer wishes to enclose a rectangular pasture with 1200 ft of fence. He needs to divide this rectangle into two smaller recta

Minchanka [31]

Answer: $60,000 ft^2$

Step-by-step explanation:

Given

total of 1200 ft of fence is available

Suppose rectangular pasture has following dimension as shown in figure.

total perimeter

$P=4a+3b$

$1200=4a+3b$

$4a=1200-3b$

$a=300-\frac{3}{4}b$

Area of rectangle is

$A=2a\times b$

$A=2(300-\frac{3}{4}b)b$

$A=2[300 b-\frac{3}{4}b^2]$

For maximum area, differentiate A w.r.t b

$\frac{\mathrm{d} A}{\mathrm{d} b}=300-\frac{3}{2}b=0$

$300=\frac{3}{2}b$

$b=200 ft$

so $a=300-150=150\ ft$

so area is

$A=2\times 150\times 200$

$A=60,000 ft^2$

4 0

3 years ago

How many ways can you select and arrange 5 books on a shelf out 13 books?

ololo11 [35]

Answer:

There are 154,440 ways.

Step-by-step explanation:

The word arrange means that the order in which the books are placed is important, which means that the permutations formula is used to solve this question.

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

$P_{(n,x)} = \frac{n!}{(n-x)!}$