The area of a parallelogram in which b = (3x + 5) ft and h = (7x - 1) ft

1 answer:

6 0

The area of a parallelogram is equal to the base multiplied by the height. So in this instance it would be (3x+5)*(7x-1). Foil out the binomials. 21x^2+35x-3x-5 Combine like terms. 21x^2+32x-5
The area is 21x^2+32x-5

You might be interested in

PLEASE HURRY IM TIMED!!!

andriy [413]

Answer-

A. Brandon’s sound intensity level is 1/4th as compared to Ahmad’s.

Solution-

Given that, loudness measured in dB is

$L=10\log \frac{I}{I_0}$

Where,

I = Sound intensity,

I₀ = 10⁻¹² and is the least intense sound a human ear can hear

Given in the question,

I₁ = Intensity at Brandon's = 10⁻¹⁰

I₂ = Intensity at Ahmad's = 10⁻⁴

Then,

$L_1=10\log \frac{I_1}{I_0}=10\log \frac{10^{-10}}{10^{-12}}=10\log \frac{1}{10^{-2}}=10\log 10^{2}=2\times10\log 10=20$

$L_2=10\log \frac{I_2}{I_0}=10\log \frac{10^{-4}}{10^{-12}}=10\log \frac{1}{10^{-8}}=10\log 10^{8}=8\times10\log 10=80$

$\therefore \frac{L_1}{L_2} =\frac{20}{80} =\frac{1}{4}$

5 0

3 years ago

Temperature fell on one night in London to 12 degrees centigrade. On same night in Moscow temperature fell to -5degrees centigra

galina1969 [7]

Answer:

17(maybe)

Step-by-step explanation:

12-(-5)=17

8 0

3 years ago

Please help, very hard question (for me), Will give Brainliest!!!

AleksAgata [21]

The answer is D. This is because when you take 10.65 and subtract 9.95 from it you get 0.07. If you take this number and continuously add to 9.95 you get the numbers provided in the chart. We'll also notice that the 0.07 is only added after 10 minutes of talking (10,20,30,etc.).

8 0

4 years ago

The figure below consists of a triangle, a rectangle, and a trapezoid.

daser333 [38]

Answer:

I am not sure but I think its 42 reason is multiplication I might be wrong if its an exam or test or quiz dont use this answer

Step-by-step explanation:

3 0

3 years ago

A mountain climber descends 3,852 feet over a period of 4 days. What was the average amount of her descent over that period of t

Harrizon [31]

To get the answer, divide 3852 feet by 4 days. That will give you an average of 963 feet per day as your answer.