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3 years ago

Whats the answer for (5x + 8)(4x² + 6x - 8)

1 answer:

4 0

$(5x + 8)(4x^2 + 6x - 8)\\ \\ 5x(4x^2 + 6x - 8) + 8(4x^2 + 6x - 8) \\ \\ 20x^3 + 30x^2 - 40x + 8(4x^2 + 6x - 8) \\ \\ 20x^3 + 30x^2 - 40x + 32x^2 + 48x - 64 \\ \\ 20x^3 + (30x^2 + 32x^2) + (-40x + 48x) - 64 \\ \\ 20x^3 + 62x^2 + 8x - 64 \\ \\$

The final result is: 20x^3 + 62x^2 + 8x - 64.

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Which number is the answer

const2013 [10]

Answer:

Step-by-step explanation:

32-24 gives you 8

So she only needs one.

7 0

3 years ago

A toy manufacturer is shipping its newest product, an interactive talking globe, to a major toy store. The packaging for the glo

Afina-wow [57]

Answer:

6 511 104 in³

Step-by-step explanation:

Since we have 1 crate and 8 boxes fit into one crate.

So, volume of one crate, V' = 8 × volume of 1 box, V

Since the box is a rectangular prism of sides 2512 inches high, 18 inches long, and 18 inches wide, its volume, V = lwh where l = length of prism, h = height of prism and w = width of prism.

So, V = lwh = 18 in × 18 in × 2512 in = 813 888 in³

So, V' = 8 × 813 888 in³ = 6 511 104 in³

So, the minimum volume of the crate is 6 511 104 in³

5 0

2 years ago

Is 50,997,850 divisible by 3?

Rufina [12.5K]

Answer:

16,999,283

Step-by-step explanation:

5 0

3 years ago

Please help

goldfiish [28.3K]

Answer:

270 coins

n + p

Step-by-step explanation:

Given that :

Number of nickels = 140

Number of pennies = 130

The total numbers coins had:

Number of Nickel + number of pennies

140 + 130 = 270 coins

If Number of nickels = n ; number of pennies = p

The total number of coins :

Number of Nickel + number of pennies

n + p

8 0

2 years ago

Which of these is the area of a sector of a circle with r = 18”, given that its arc length is 6π?

koban [17]

The formulas for arc length and area of a sector are quite close in their appearance. The formula for arc length, however, is related to the circumference of a circle while the area of a sector is related to, well, the area! The arc length formula is $AL= \frac{ \beta }{360} *2 \pi r$ . Notice the "2*pi*r" which is the circumference formula. The area of a sector is $A s= \frac{ \beta }{360} * \pi r ^{2}$ . Notice the "pi*r squared", which of course is the area of a circle. In our problem we are given the arc length and the radius. What we do not have that we need to then find the area of a sector of the circle is the measure of the central angle, beta. Filling in accordingly, $6 \pi = \frac{ \beta }{360} *2 \pi (18)$ . Simplifying by multiplying by 360 on both sides and then dividing by 36 on both sides gives us that our angle has a measure of 60°. Now we can use that to find the area of a sector of that same circle. Again, filling accordingly, $A_{s} = \frac{60}{360} * \pi (18) ^{2}$ , and $A_{s} =54 \pi$ . When you multiply in the value of pi, you get that your area is 169.65 in squared.

8 0

2 years ago