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3 years ago

2x^2+15x+7 (box method)

Mathematics

1 answer:

RoseWind [281]3 years ago

4 0

(2x+1) (x+7)

I solved it by using the FOIL method, but you get the same answer either way

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The average monthly rainfall for 6 months was 28.5 mm. If it had rained 1mm more each month what would the average have been? By

Fynjy0 [20]

Answer:

29.5 mm

Step-by-step explanation:

We are told that the average monthly rainfall for 6 months was 28.5 mm.

Thus, total for the 6 months = 28.5 × 6 = 171 mm

Now, we are told that it rained 1 mm extra each month.

So extra for the six months = 1 × 6 = 6mm

New total for 6 months = 171 + 6 = 177 mm

So, new average for 6 months = 177/6 = 29.5 mm

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3 years ago

Subtract 8-4 1/2. A. 3 B. 4 C. 4 1/2 D. 3 1/2

kicyunya [14]

This was the answer I came up with - 3.5

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3 years ago

NEED HELP ASAP, WORTH 80PTS

sp2606 [1]

This is because the expression can be simplified to get the same result. -1+2log_4((1/4)x)

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3 years ago

Read 2 more answers

The bells are adding a new room to their house. The room will be a cube with volume 8000ft3. They are going to put in hardwood

puteri [66]

Given:

Volume of a cubed room = 8000 cubic ft

Cost of floor hardwood = $10 per square foot

To find:

The total cost of floor hardwood.

Solution:

Let the each side of cubed room be x ft.

Volume of a cube is cube of its side.

Volume of a cubed room is 8000 cubic ft. So,

$x^3=8000$

Taking cube root on both sides.

$x=20$

So, length of each of room is 20 ft.

Area of base = length × breadth

So, area of base of room is

$20\times 20=400\text{ ft}^2$

It means, 400 sq ft hardwood is required for the floor.

Cost of floor hardwood is $10 per square foot. So, total cost of hardwood floor is

$400\times 10=4000$

The hardwood floors will cost $4000.

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3 years ago

A baker is filling cone shaped wafers with

Irina-Kira [14]

Answer:

251.2 cm

Step-by-step explanation:

It just is

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3 years ago