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3 years ago

The perimeter of a square is 26.46 inches. what is the side length of the square?

1 answer:

6 0

Because to find the perimeter of a shape you have to add all the sides together so you would take 26.46 and divide it by 4 (since squares have 4 sides) to get 6.165

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If a cow has a mass of 9×1029×102 kilograms, and a blue whale has a mass of 1.8×1051.8×105 kilograms, which of these statements

STatiana [176]

Cow : 9 x 10^2 = 9 * 100 = 900
whale : 1.8 x 10^5 = 1.8 * 100,000 = 180,000

180,000/900 = 200

The blue whale has about 200 times more mass <==

3 0

3 years ago

Read 2 more answers

The sum of two numbers is the same as four times the smaller number. If twice the larger is decreased by the smaller, the result

liraira [26]

The two numbers are 6 and 18

Step-by-step explanation:

The given is:

The sum of two numbers is the same as four times the smaller number
If twice the larger is decreased by the smaller, the result is 30

We need to find the the numbers

Assume that the smaller number is x and the larger number is y

∵ The smaller number = x

∵ The larger number = y

∵ The sum of the two numbers is the same as four times the

smaller number

- That means add the two numbers and equate the sum by four

times x

∴ x + y = 4x

- Subtract both sides by x

∴ y = 3x ⇒ (1)

∵ Twice the larger number is decreased by the smaller number,

the result is 30

- That means multiply y by 2 and subtract x from the product,

then equate the difference by 30

∴ 2y - x = 30 ⇒ (2)

- Substitute y in equation (2) by equation (1)

∵ 2(3x) - x = 30

∴ 6x - x = 30

- Add like terms in the left hand side

∴ 5x = 30

- Divide both sides by 5

∴ x = 6

- Substitute the value of x in equation (1) to find y

∵ y = 3(6)

∴ y = 18

The two numbers are 6 and 18

Learn more:

You can learn more about the system of equation in brainly.com/question/2115716

#LearnwithBrainly

5 0

3 years ago

Two different airlines have a flight from Los Angeles to New York that departs each weekday morning at a certain time. Let E den

Volgvan

Answer:

A) P(E|F) = 0.900

B) P(F|E) = 0.771

Step-by-step explanation:

P(E) = 0.7

P(F) = 0.6

P(E n F) = 0.54

A) P(E|F), the probability that the first airline's flight is fully booked given that the second airline's flight is fully booked is given mathematically as

P(E|F) = P(E n F)/P(F) = 0.54/0.6 = 0.900

B) P(F|E), the probability that the second airline's flight is fully booked given that the first airline's flight is fully booked is given mathematically as

P(F|E) = P(E n F)/P(E) = 0.54/0.7 = 0.771

3 0

3 years ago

Give an exponential formula for the number of hiv infections, upper h, (in millions) as a function of years, t, since 1985. Use

ollegr [7]

we can sue formula

$P(t)=P_0e^{kt}$