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Fiesta28 [93]
3 years ago
14

Plz i need help and asap plus work pls and no files

Mathematics
1 answer:
AnnZ [28]3 years ago
3 0

Answer:

25%

Step-by-step explanation:

so out of 32 marbles, 8 of them are red. This means the rest are blue which is 24 blue. To make a percentage, all you do is make a fraction. out of 32, 8 were red so 8/32. Fractions are basically division so 8/32 is 0.25. This means 25%.

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Delicious77 [7]

Answer:

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Step-by-step explanation:

8 0
3 years ago
Answer the following true or false. Justify your answer.
Anna007 [38]

Answer:

a) False b) False c) True d) True e) True

Step-by-step explanation:

a) If A is a subset of B, and x∈B, then x∈A. False

Suppose A is Z (Set of Integers), and B is R (Set of Real Numbers). Then A is a subset of B. x ∈ B, let's say x equals π. If x ∈ B (B = Real Numbers) and x=π then x ∉ A (Z).

We could call A, any other subset of Real numbers (Q, I,..) and we both would come up to the same conclusion when it comes to Real numbers the Set.

So this conclusion is False. Not always an element of a subset is an element of a set.

b) False

For this one, I've drawn some lines, and it is useful to work with them.

Given the set {(x,y) ∈ R²| 0<x<0} then all negative and positive numbers but zero belong to this set.

c) If A and B are square matrices, then AB is also square. True

Taking into account the rules for multiplying matrices. The number of columns of A must be the same number of lines of B to there can be a matrix product.

Whenever we multiply square matrices, we'll always get square matrices. Then this conclusion is true.

d) A and B are subsets of a set S, then A∩B and A∪B are also subsets of S. True

Suppose A= Z (Integer Numbers) and B=Q (Rational Numbers) and S= R (Real Numbers)

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Since the ∅ empty set ⊂ in every set and ZUQ is another Subset of R this is a True conclusion.

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M²=M*M

M³=M*M*M

7 0
3 years ago
Plssss help due today
asambeis [7]

160-80 = 80

80/2 = 40


angle BCD = 40 degrees


please mark brainliest

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never [62]

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6 0
3 years ago
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What is area of ths shape
dimaraw [331]

The area is 114 yards

Step-by-step explanation:

(10x9) + (4x6)

8 0
2 years ago
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