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3 years ago

What is 20÷40+30-400÷10000

Mathematics

2 answers:

WARRIOR [948]3 years ago

3 0

Answer:

brainly: this looks like a question for a calculator.

Step-by-step explanation:

garri49 [273]3 years ago

3 0

Answer:

30.46

Step-by-step explanation:

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PLEASE HELP ITS URGENT. I’m not sure how to do this!! I will mark brainlist!!

elena-s [515]

Answer:

2y+3=5y-6. (Since all sides of rhoumbus are equal)

2y-5y=-6-3

-3y=-9

y=-9/-3

y=3

I hope it helps!!

8 0

3 years ago

Please need help on this

IrinaVladis [17]

The first statement is true.

The second statement is false.

The third statement is true.

4 0

4 years ago

Read 2 more answers

Which expression is equivalent to-2-7?

Alla [95]

Answer:

Well

1) -2+(-7)

2) -7-2

Step-by-step explanation:

Both equations work and their equivalent

4 0

3 years ago

(1.1.8 in the book) Let P be the proposition ’I bought a lottery ticket this weekend’ and Q be the proposition ’I won the millio

Karolina [17]

Answer:

~ is for negation

^ is for "and"

v is for "or"

=> for "if then"

<=> for "if and only if"

Step-by-step explanation:

(a) ~P (negation of P)

I didn't buy a lottery ticket this weekend.

(b) P v Q (P is in disjunction Q)

I have either bought a lottery ticket this weekend or won the million dollar jackpot.

I won the million dollar jackpot because I bought a lottery ticket this weekend.

(d) P ^ Q (P is in conjunction with Q)

I bought a lottery ticket this weekend, and I won the million dollar jackpot.

(e) P <=> Q (P and Q are dependent on each other)

If only I had bought a lottery ticket this weekend, I would have won the million dollar jackpot.

(f) ~P => ~Q (negation of Q is a consequence of negation of P)

I didn't win the million dollar jackpot because I didn't buy a lottery ticket this weekend.

(g) ~P ^ ~Q (negation of P is in conjunction with negation of Q)

I neither bought a lottery ticket this weekend nor won the million dollar jackpot.

(h) ~P v (P ^ Q)

This is logically equivalent to (~P v P) ^ (~P v Q) (negation of P is in disjunction with P, and also with disjunction with Q), and can be best expressed as:

It didn't matter that I bought a jackpot ticket or not, I won the million dollar jackpot.

8 0

4 years ago

You drop a ball from a height of 0.5 meters. Each curved path has 52% of the height of the previous path. a. Write a rule for th

Verizon [17]

Answer:

a) $a_n = 50 (0.52) ^ {n-1}$

b) $a_6 = 50 (0.52) ^ 5 = 1.90\ cm$

Step-by-step explanation:

If each curved path has 52% of the previous height this means that $\frac{a_{n+1}}{a_n} = 0.52$

Then the radius of convergence is 0.52 and this is a geometric series.

The geometric series have the form:

$a_n = a_1 (r) ^ {n-1}$

Where

$a_1$ is the first term of the series and r is the radius of convergence.

In this problem

$a_1 = 0.5$ meters = 50 cm

$r = 0.52$

a) Then the rule for the sequence is:

$a_n = 50 (0.52) ^ {n-1}$

b) we must calculate $a_6$

$a_6 = 50 (0.52) ^ 6-1\\\\a_6 = 50 (0.52) ^ 5 = 1.90\ cm$

3 0

3 years ago

What is 20÷40+30-400÷10000​

What is 20÷40+30-400÷10000