A die is rolled. Which is the probability of rolling an even number or a number greater than 4?

Mathematics

1 answer:

9966 [12]3 years ago

6 0

Answer:

Step-by-step explanation:iii

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I need help with this problem. please.

Hoochie [10]

The first and 3rd are rational, the second is irrational

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4 years ago

Read 2 more answers

Raju’s mother is four times as old as Raju. After 5 years , her mother will be three

cluponka [151]

Answer:

Mother: 40 years old

Rakhi: 15 years old

Step-by-step explanation:

Solution :

Let present age of Rakhi = x years

Present age of Mother = 4x

5 years later

Age of Rakhi =x+5

Ag of Mother =4x+5

Given 4x+5=3(x+5)

4x−3x=15−5

⇒x=10

Mother's age =4x=40 years

Plug 10 in for x to find Rakhis age

7 0

3 years ago

What is the value of B in: (7.99-B)/B=1.63

mixer [17]

(7.99 - B)/B = 1.63
7.99 - B = 1.63B
1.63B + B = 7.99
2.63B = 7.99
B = 7.99 / 2.63
B = 3.04

5 0

3 years ago

An open box is to be constructed so that the length of the base is 3 times larger than the width of the base. If the cost to con

natta225 [31]

Answer:

Step-by-step explanation:

Let assume that the volume = 88 cubic feet

Then:

$L = 3w --- (1)volume = l \times w \times h \\ \\ 88 = (3w) \times w \times h \\ \\ 3w^2 h= 88 \\ \\ h = \dfrac{88}{3w^2}--- (2) \\ \\$

The construction cost now is:

$C = 4(l \times w) + 2 ( w \times h) + 2(l \times h) \\ \\ C = 4(3w^2) + 2(w \times \dfrac{88}{3w^2}) + 2(3w \times \dfrac{88}{3w^2}) \\\\ C = 12w^2 + \dfrac{176}{3w} + \dfrac{176}{w}$

Now, to determine the minimum cost:

$\dfrac{dC}{dw}= 0 \\ \\ \implies 24 w - \dfrac{176}{3w^2}- \dfrac{176}{w^2}=0 \\ \\ 24 w ^3 = \dfrac{176}{w^2}(\dfrac{1}{3}+1) \\ \\ 24 w ^3 = \dfrac{176(4)}{3} \\ \\ w^3 = \dfrac{88}{3(3)}$