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cupoosta [38]
3 years ago
15

8×(30+2)=(8×_)+(8×2)

Mathematics
2 answers:
irinina [24]3 years ago
6 0
Using the distributive property, a(b+ c) = ab + ac. In this case, b is 30, so the blank is 30.
ioda3 years ago
3 0
<span>8×(30+2)=(8×_)+(8×2)

8 </span>× (32) = (8×_) + (16)
256 = (8×_) + 16
240 = 8×_

30 = _
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jonny [76]

Answer:

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4 0
2 years ago
The end of a hose was resting on the ground, pointing up an angle. Sal measured the path of the water coming out of the hose and
lawyer [7]

Functions can be used to model real life situations.

The hose is 3.2 feet above the ground, at a horizontal distance of 4 fee

The function is given as:

f(x) =-0.3x^2 + 2x

At a horizontal distance of 4 feet, the value of x is 4

i.e. x = 4

Substitute 4 for x in f(x).

So, we have:

f(4) =-0.3(4)^2 + 2(4)

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f(4) =-0.3(16) + 2(4)

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f(4) =-4.8 + 8

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Read more about functions at:

brainly.com/question/10837575

7 0
2 years ago
There are 22 rows of seats on a concert hall: 23 seats are in the 1st row, 27 seats on the 2nd row, 31 seats on the 3rd row, and
JulijaS [17]
We can model this situation with an arithmetic series.
we have to find the number of all the seats, so we need to sum up the number of seats in all of the 22 rows.

1st row: 23
2nd row: 27
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Notice how we are adding 4 each time.

So we have an arithmetic series with a first term of 23 and a common difference of 4.

We need to find the total number of seats. To do this, we use the formula for the sum of an arithmetic series (first n terms):

Sₙ = (n/2)(t₁ + tₙ)

where n is the term numbers, t₁ is the first term, tₙ is the nth term

We want to sum up to 22 terms, so we need to find the 22nd term

Formula for general term of an arithmetic sequence:

tₙ = t₁ + (n-1)d,

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tₙ = 23 + (n-1)(4)

The 22nd term, which is the 22nd row, is

t₂₂ = 23 + (22-1)(4) = 107

There are 107 seats in the 22nd row.

So we use the sum formula to find the total number of seats:

S₂₂ = (22/2)(23 + 107) = 1430 seats

Total of 1430 seats.
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1430 * $29.99 = $42885.70
4 0
3 years ago
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Lesechka [4]

Answer:

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6 0
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