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Vinvika [58]
3 years ago
9

A rectangle with sides 11 cm and 9 cm has the same diagonal as a square.

Mathematics
1 answer:
pishuonlain [190]3 years ago
6 0

Answer:

the length will be 9cm because a square has equal sides it not the same as the rectangle

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7. Susie bought some reams of paper for 5 each and a $200 printer. He spent a minimal of $450. write and solve an equation to fi
Dovator [93]

Answer:

$450-200÷5=the number of reams of paper Susie purchased.

Step-by-step explanation:

$450-$200=$250

$250÷5= 50

Therefore, Susie purchased 50 reams of paper

3 0
2 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)

A∩B = Z∩Q=∅ and A∪B =Z∪Q = subset

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

e) True. For a matrix A, we define A²= AA

For any Power of Matrices, all we have to do is multiply any given matrix by itself for a given number of times.

M²=M*M

M³=M*M*M

7 0
3 years ago
A solid oblique pyramid has a regular hexagonal base with an area of 54 cm2 and an edge length of 6 cm. Angle BAC measures 60°.W
sergij07 [2.7K]

Answer:

324 cm3

Correct on edge

4 0
3 years ago
Read 2 more answers
The cash price of a television is $580.
Drupady [299]

Answer:

n=25% or 0.25

Step-by-step explanation:

865= 580(n%)+ 6(120)

865= 580 (n%) +720

865-720= 145

145= 580(n%)

divide both by 580, you get 0.25=n%

5 0
3 years ago
Which is bigger 5/12 or 7/24
7nadin3 [17]
I would say 7/24 because when you multiply it you should be able to get a large number.
5 0
3 years ago
Read 2 more answers
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