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3 years ago

6

A square tile has a side 4 cm long. use the appropriate formula model to find the area. what is the area of the square? include

units with your answer.

1 answer:

Ugo [173]3 years ago

5 0

S^2 = A
4^2 = A
4 * 4 = A
16 centimeters = Area of the square

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The access code for a garage door consists of three digits. Each digit can be any number from 1 through 5, and each digit can b

Papessa [141]

Answer:

(a) 125

$(b) \dfrac{1}{125}$

$(c) \dfrac{124}{125}$

Step-by-step explanation:

We are given that access code consists of 3 digits.

Each digit can be any digit through 1 to 5 and can be repeated.

Now, this problem is equivalent to the problem that we have to find:

The number of 3 digit numbers that can be formed using the digits 1 to 5 with repetition allowed.

(a) We have 3 places here, unit's, ten's and hundred's places respectively and each of the 3 places have 5 possibilities (any digit allowed with repetition).

So, total number of access codes possible:

$5\times 5 \times 5 = 125$

(b) Suppose, an access code is randomly selected, what is the probability that it will be correct.

Formula for probability of an event E can be observed as:

$P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}$

Here, only 1 code is correct, so

Number of favorable cases = 1

Total number of cases = 125

So, required probability:

$P(E) = \dfrac{1}{125}$

(c) Probability of not selecting the correct access code on first time:

$P(\overline E) = 1-P(E)\\\Rightarrow P(\overline E) = 1-\dfrac{1}{125}\\\Rightarrow P(\overline E) = \dfrac{125-1}{125}\\\Rightarrow P(\overline E) = \dfrac{124}{125}$

So, the answers are:

(a) 125

$(b) \dfrac{1}{125}$

$(c) \dfrac{124}{125}$

7 0

3 years ago

please answer ASAP, also, who ever answers if first and has the best explination and work will get the BRAINLIEST crown, and a

Scrat [10]

Volume of 1/4 gal

= Volume of 2/3 bin

Volume(x gal)

= Volume( 1 bin)

So, (1/4)/(2/3)

= x/1

(1/4)/(2/3)

= x

(1/4)/(3/2)

x = 3/8 (Total balance required to fill the entire bin)

In order to fill the bin, the additional gallons need to be added to the initial 1/4 gallon

Therefore, 3/8 - 1/4 = 1/8 gallons

Hope that helps!!!!

7 0

3 years ago

The braxton family goes ot for lunch and the price of the meal is $45. The sales tax on the meal is 6%and the family leaves a 20

jarptica [38.1K]

Answer:

56.70

Step-by-step explanation:

first determine the tax

45 * 6% = 45*.06 = 2.70

Then determine the tip

45 * 20% = 45*.2 =9

Then add everything together

45+2.70+9 =56.70

4 0

3 years ago

I am greater than 4 tens and less than 5 tens I have 9 ones

aliina [53]

4 tens = 40 and 5 tens = 50 … therefore the number has to be between 40 and 50

So: 40 < x <50 … this says that x is greater than 40 and less than 50

So the possible numbers would be: 41,42,43,44,45,46,47,48,49

Now the number must have 9 ones … which mean the only number would be 49

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3 years ago

Shari had six dimes and nine nickels.Did she have enough money to buy a $0.99 pack of gum

Flura [38]

Answer:yes she does cauce she has 1.05

Step-by-step explanation:

8 0

3 years ago

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