3 years ago

Is 67 a prime number?

Mathematics

1 answer:

alexdok [17]3 years ago

7 0

Answer:

yes 67 is a prime number because has only 2 divisors

Step-by-step explanation:

You might be interested in

Evaluate the expression 4 × (3 + 52) ÷ 2. Show your work.

STatiana [176]

Answer:

110

Step-by-step explanation:

4 x ( 3+ 52) ÷ 2

4 x 55 ÷ 2

220 ÷ 2 = 110

4 0

2 years ago

Read 2 more answers

An office supply store A isn’t offering copy paper for $3.00 per pack. Store B is running a special of buy two for $4.20 each an

LiRa [457]

Store B, since they are two for 4.20$ while Store A has only ONE for 3.00$ meaning let’s say we’re gonna buy two packs it would be 4.20$ for Store B and 6.00$ for Store A

5 0

2 years ago

Evaluate 8.1p + 7.9 when p = 6 and r = 7

matrenka [14]

Answer:

56.5

Step-by-step explanation:

8 0

2 years ago

One of the loudest sounds in recent history was that made by the explosion of Krakatoa on August 26-27, 1883. According to barom

liraira [26]

Answer:

150.51 dB

Step-by-step explanation:

Data provided in the question:

decibel level of sound at 161 km distance = 180 dB

d₁ = 161 km

d₂ = 4800 km

I₁ = 180 db

The formula for intensity of sound is given as:

I = $10\log(\frac{I_2}{I_1})$

and the relation between intensity and distance is given as:

I ∝ $\frac{1}{d^2}$

Id² = constant

thus,

I₁d₁² = I₂d₂²

$\frac{I_2}{I_1}=\frac{d_1}{d_2}$

therefore,

I = $10\log(\frac{d_1}{d_2})^2$

I = $10\times2\times\log(\frac{161}{4,800})$

I = 20 × (-1.474)

I = -29.49

Therefore,

the decibel level on Rodriguez Island, 4,800 km away

= 180 - 29.49

= 150.51 dB

8 0

2 years ago

Brandy solved 1/6 divided 5 by using a multiplication expression did she use

Mademuasel [1]

(1/6)*(1*5) is the required expression

6 0

3 years ago