1 year ago

Which of these is a correct expansion of (3x − 1)(4x² + 5)?

Mathematics

1 answer:

My name is Ann [436]1 year ago

8 0

The correct expansion is B. 3x. 4x^2 + 3x•5 + (-1) • 4x^2+ (-1) • 5

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Find the 8th term in the sequence with this explicit formula:<br> c(n) = -6 + 5(n - 1)

QveST [7]

We are given this explicit formula :

$c(n) = -6 + 5(n - 1)$

In order to find eighth term let us plug n as 8 in this formula:

$c(8) = -6 + 5(8 - 1)$

subtracting 8-1 first using pemdas rule

$c(8) = -6 + 5(7)$

multiplying 5 and 7

$c(8) = -6 + 35$

subtracting 35-6

c(8) = 29

So eighth term is 29.

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3 years ago

What is the number in standard form?

zaharov [31]

It`s already in standard form but anyways the correct answer is 49.08

3 0

2 years ago

Read 2 more answers

Pls help fast 10 points instead of 5

Elodia [21]

Stop capping its 5 points

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2 years ago

Darla has four buckets shaped like cylinders she is filling the buckets with water by using a scoop shaped like a cone if the co

padilas [110]

Answer:

12 Scoops

Step-by-step explanation:

Darla has 4 Cylinder Shaped Buckets

Volume of the Cylinders $=4*\pi r^2h$

The scoop is cone shaped and:

Volume of the Cone Scoop $=\frac{1}{3} \pi r^2h$

Since the radius and height of the cone scoop and cylindrical buckets are the same,

The number of Cone Scoops it will take to fill the buckets is:

Total Volume of Buckets/Volume of Cone Scoops

$=\dfrac{4*\pi r^2h}{\frac{1}{3} \pi r^2h} \\=4 \div \frac{1}{3}\\=12$

It will take 12 Scoops to fill the 4 buckets.

5 0

3 years ago

What is the exact value for the expression √52-√13+√117? Simplify if possible.

Aleksandr-060686 [28]

√52-√13+√117

sqrt (4*13) - sqrt (13) + sqrt (13*9)

sqrt(4)sqrt(13) -sqrt(13)+sqrt(13)sqrt(9)

2sqrt(13) -sqrt(13)+3sqt(13)

sqrt(13)[2-1+3]

4sqrt(13)

Choice A

8 0

2 years ago