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Eduardwww [97]
3 years ago
14

Please help me solve this

Mathematics
1 answer:
N76 [4]3 years ago
5 0

Answer:

area of the square=18×18

=324 cm²

area of the circle=πr²

=3.142×9² (radius=18cm/2=9cm). =254.502 cm²

area of the shaded region=324-254.502

=69.498 cm²

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Please help me please!!!
Inessa [10]

Answer:

A

Step-by-step explanation:

Put x as -3.

2(-3) - 2

= -8

2(-3)² + 14(-3) + 5

= -19

Divide both terms.

-8/-19 = 8/19

6 0
3 years ago
Factors of 54 and 36 all factors correct = brainliest answer
Lilit [14]

9514 1404 393

Answer:

  54 = 2 × 3³

  36 = 2² × 3²

Step-by-step explanation:

The term "factors" can mean different things in this context. Usually, it means "prime factors." Exponents are used to indicate the number of times a factor is repeated. The prime factors of these numbers are ...

  54 = 2 × 3³

  36 = 2² × 3²

__

Sometimes, we use the word "factors" to mean "positive integer divisors." The number of divisors is the product of the exponents of the prime factors, each increased by 1. That is, 54 has (2·4) = 8 divisors; 36 has (3·3) = 9 divisors. The odd number of divisors is one indication that the number is a perfect square.

The divisors of these numbers are ...

  54 is divisible by 1, 2, 3, 6, 9, 18, 27, 54

  36 is divisible by 1, 2, 3, 4, 6, 9, 12, 18, 36

5 0
4 years ago
A pet supply store sells a 20-pound bag of dog food $23.44.Find the unit price.
satela [25.4K]

Answer:

1.172 dollars per pound

Step-by-step explanation:

Given : A pet supply store sells a 20-pound bag of dog food $23.44.

To Find :Find the unit price.

Solution :

Cost of 20-pound bag of food = $23.44

So, Cost of 1-pound bag of food = \frac{23.44}{20}

                                                     = 1.172

For unit price we should divide the cost by no. of pounds

So, the error is you have divided the no. of pounds by cost

Hence the unit price is 1.172 dollars per pound

7 0
4 years ago
Kyung bought 3 CDs that cost x dollars each, 2 DVDs that cost $10 each; and a book that cost $15. Write an expression in simples
Diano4ka-milaya [45]

Answer:

Step-by-step explanation:

3x + 2·10 + 1·15 = (3x + 35) dollars

8 0
3 years ago
How many triangles exist with the given angle measures? 45 45 90
WARRIOR [948]

Answer:

Infinitely many

Step-by-step explanation:

for example,

a triangle of 1 - 1 - \sqrt{2} is  45 - 45 - 90 based on the 45-45-90 triangle theorem

if I multiply the three side lengths listed above by the same number, I will still have a 45 -45 -90 because of the definition of similar triangles

8 0
3 years ago
Read 2 more answers
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