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2 years ago

Helpp nowww i will give branliest

Mathematics

2 answers:

Romashka [77]2 years ago

6 0

Answer: Z

Step-by-step explanation: pls if im correct give me brainliest, if not correct give it to some one else

RUDIKE [14]2 years ago

4 0

Answer:

Step-by-step explanation:

Y axis is the line thats up and down

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Show that B = {[a, b) ⊂ ℝ | a < b} is a basis for a topology on ℝ

loris [4]

Answer:

Remember that a set $\mathcal{B}$ is a base for some topology on $\mathbb{R}$ if satisfy the following properties:

1. $\mathbb{R}=\cup\{B: B\in\mathcal{B}\}$

2. For $B, B^* \in \mathcal{B}$ , If $p\in B\cap B^*$ then exist $B_p\in\mathcal{B}$ such that $p\in B_p\subset B\cap B^*$ .

Now, for $B=\{[a,b)\subset\mathbb{R}| a < b\}$ we verify the above properties:

1. It's clear that $\mathbb{R}=\cup_{a,b \text{ with }a$

2. Let $B=[a,b), B^*=[c,d) \in \mathcal{B}, p\in B\cap B^*$ . Without loss of generality suppose that $a$ . Then $c\leq p < b$ , this implies that $p\in[c,b)$ and $B_p=[c,d) \in \mathcal{B}$ and $B_p\subset B\cap B^*$ .

Then, B satisfy the two properties. This show that B is a basis for a topology in $\mathbb{R}$

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3 years ago

Starting at its rightmost position, it takes 1 second for the pendulum of a grandfather clock to swing a

kirza4 [7]

Answer:

Step-by-step explanation:

amplitude of oscillation a = 12 / 2 = 6 inches.

time period T = 2 s

b = angular frequency = 2π / T

= 2π / 2

= π

so putting the values in the equation

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d = 6 cos ( π t )

5 0

2 years ago

Read 2 more answers

Pls help I’ll give 23 points

Andrew [12]

Answer:

$2594.07

Step-by-step explanation:

Principal P = $2250
Interest rate r = 2.4% = 0.024 PA compounded
Compound number n = 1 (once per year)
Time t = 6 years

<u>Future amount formula:</u>

F = P(1 + r/n)^(nt)

<u>Substitute given values:</u>

F = 2250(1 + 0.024)^6 = 2594.07

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2 years ago

Which numbers are rational?

QveST [7]

Answer:

0 is a rational number.

-7 is a rational number.

10 is a rational number.

Step-by-step explanation:

Not sure about the rest but these numbers I know for a fact are 100% rational.

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2 years ago

Points A,B,C and D are midpoints of the sides of the larger square. If the smaller square has area 60, what is the area of the b

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Answer:

Step-by-step explanation:

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2 years ago