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2 years ago

Does 4 = 2+2 it seem like I'm really dumb but, trust me this is really hard

Mathematics

2 answers:

igomit [66]2 years ago

5 0

Answer:

Yes it does

Sorry I need 20 characters so 2+2=4 there you go

marysya [2.9K]2 years ago

3 0

Yes it does 2+2 does equal 4

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Suppose that 3 cards are drawn from a well-shuffled deck of 52 cards. What is the probability that all 3 are diamonds?

Marat540 [252]

There are 13 diamonds in the deck, so $\dbinom{13}3$ ways of drawing 3 diamonds.

There is a total of $\dbinom{52}3$ ways of drawing any 3 cards from the deck.

So the probability of drawing 3 diamonds is

$\dfrac{\binom{13}3}{\binom{52}3}=\dfrac{11}{850}\approx0.012941$

where $\dbinom nk=\dfrac{n!}{k!(n-k)!}$ .

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2 years ago

I need help with these questions (see image). Please show workings.<br>

shtirl [24]

Answer:

Inscribed angle is half of the intercepted arc.
Central angle is the same size as the intercepted arc.

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3 years ago

Read 2 more answers

What is 10x-3>3x+11 as a word problem

Leokris [45]

Answer:

Ten times a number minus 3 is greater than three times the number plus eleven

Step-by-step explanation:

we have the inequality

10x-3 > 3x+11

Let

x ----> a number

As a word problem will be

10x -----> Ten times a number x

+ ----> plus

-3 -----> negative 3

> greater than

3x ----> three times a number x

11 ----> eleven

therefore

Ten times a number minus 3 is greater than three times the number plus eleven

7 0

2 years ago

4x + 5y = 10

Vika [28.1K]

Answer:

For A = 32/5 and B = 8 the system of equations will have infinitely many solutions.

Step-by-step explanation:

Given equations are:

4x + 5y = 10

Ax + By = 16

The general form of linear equation in two variables is given by:

$ax+by = c$

Here a, b and c are constants and x,y are variables.

In the given equations, after comparing with the general form

$a_1 = 4\\b_1 = 5 \\c_1 = 10\\a_2 = A\\b_2 =B\\c_2 = 16$

"In order for a system of equations to have infinity many solutions,

$\frac{a_1}{a_2} = \frac{b_1}{b_2} = \frac{c_1}{c_2}$ "

Putting the values we get

$\frac{4}{A} = \frac{5}{B} = \frac{10}{16}\\\frac{4}{A} = \frac{5}{B} = \frac{5}{8}\\Now\\\frac{4}{A} = \frac{5}{8}\\\frac{A}{4} = \frac{8}{5}\\A = \frac{8}{5} * 4\\A = \frac{32}{5}\\And\\\frac{5}{B} = \frac{5}{8}\\\frac{B}{5} = \frac{8}{5}\\B = 8$

Hence,

For A = 32/5 and B = 8 the system of equations will have infinitely many solutions.

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2 years ago

Gaseste substantivele din textul urmator si analizeaza-le dupa modelul dat.Fusul imi sfaria pe la urechi.Ma uitam la cer printre

Jet001 [13]

Puede hablar al menos un poco de inglés

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3 years ago