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2 years ago

A rectangle portrait is 6 feet wide and 4 feet high. What is its perimeter?

Mathematics

1 answer:

Molodets [167]2 years ago

6 0

Answer:

Step-by-step explanation:

Perimeter :

2(height + width)
2(4 + 6)
2(10)
<u>20 feet</u>

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At which values of x does the function F(x) have a vertical asymptote ? Check all that apply. (Picture provided )

Paul [167]

The answers are -3 and -2

Hope this helped (:

7 0

3 years ago

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Pepper Jackie filled up her 10-Gallon gas tank for $54.50. How much did the gas cost per gallon?

Andrews [41]

It cost $5.45 a gallon

just take 54.50 ÷ 10 and it gives you 5.45

8 0

4 years ago

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element X is a radioactive isotope such that every 21 years, its mass decreases by half. Given that the initial mass of a sample

pashok25 [27]

Answer:

The percentage rate of decay per year is of 3.25%.

The function showing the mass of the sample remaining after t is $A(t) = 80(0.9675)^t$

Step-by-step explanation:

Equation for decay of substance:

The equation that models the amount of a decaying substance after t years is given by:

$A(t) = A(0)(1-r)^t$

In which A(0) is the initial amount and r is the decay rate, as a decimal.

Every 21 years, its mass decreases by half.

This means that $A(21) = 0.5A(0)$ . We use this to find r, the percentage rate of decay per year.

$A(t) = A(0)(1-r)^t$

$0.5A(0) = A(0)(1-r)^{21}$

$(1-r)^{21} = 0.5$

$\sqrt[21]{(1-r)^{21}} = \sqrt[21]{0.5}$

$1 - r = 0.5^{\frac{1}{21}}$

$1 - r = 0.9675$

$r = 1 - 0.9675 = 0.0325$

The percentage rate of decay per year is of 3.25%.

Given that the initial mass of a sample of Element X is 80 grams.

This means that $A(0) = 80$

The equation is:

$A(t) = A(0)(1-r)^t$

$A(t) = 80(1-0.0325)^t$

$A(t) = 80(0.9675)^t$

The function showing the mass of the sample remaining after t is $A(t) = 80(0.9675)^t$

8 0

3 years ago

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Sorbet is a frozen dessert that is often made from fruit. how many portions each weighing 1/10 of a kilogram can a french desser

lutik1710 [3]

To know how many servings can be done what we should do in this case is to divide the total amount of kilograms of sorbet between the amount of each of the servings.
We then have to do the division:
N = (3) / (1/10)
N = 30
Answer:
a french dessert chef can create 30 portions each weighing 1/10 of a kilogram from 3 kilograms of sorbet

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4 years ago

An algebra tile configuration. 3 tiles are in the Factor 1 spot: one is labeled + x and 2 are labeled negative. 4 tiles are in t

NARA [144]

Answer:

No, she did not multiply the negative integer tiles by the other negative integer tiles correctly.

Step-by-step explanation:

5 0

3 years ago