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lozanna [386]
4 years ago
5

Help please. It'd mean a whole lot.

Mathematics
1 answer:
svp [43]4 years ago
3 0

So, the total area of the rectangle is just:

(2x+11)(2x+6)=4x^2+12x+22x+66=4x^2+32x+66

The area of the white rectangle is just 66 meters, so the area of the steel frame is 4x^2+32x, and we want it to be 28 meters so: 4x^2+32x-28=0 \impliesx= \frac{-32+\sqrt{1472}}{8} \approx .80 cm

We don't have to consider the other root because it's obviously a negative.

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What is the unit rate of a line that goes through the points (3,1)?
Ket [755]

Answer:

3.

Step-by-step explanation:

3 divided by 1 equals 3.

Please mark me brainliest I need it!!!

7 0
3 years ago
Select the correct answer. Which expression represents the series ? 1+5+25+125+625? creating and solving formulas for geometric
Art [367]

Answer:

The given series can be written as

4

∑  (5)^i

i = 0

We know that the series  is

1+5+25+125+625

This is equal to

(5)^0 + (5)^1 + (5)^2 + (5)^3 + (5)^4

Thus,

For i from 0 to 4,

We get the general representation.

3 0
4 years ago
I NEED HELP PLEASE, THANKS! :)
agasfer [191]

Answer:

The answer is 4th Choice

Step-by-step explanation:

5 0
4 years ago
A cylinder has a volume of 245 cubic units and a height of 5 units. The diameter of the cylinder is
Vikki [24]

Answer:

The diameter is twice that, or approx. 7.90 units.

Step-by-step explanation:

the equation for the volume of a cylinder of radius r and height h is

V = πr²h.  Here we need to calculate the diameter after having found the radius.  Solving V = πr²h for r², we get:

           V

r² = -----------

         πh

Substituting the given values, we obtain for r² the following:

         145 units³

r² = ------------------------  = 15.6 units²

       3.14159(5 units)

Taking the square root of both sides, we get:

r = √15.60, or approx. 3.95 units.

The diameter is twice that, or approx. 7.90 units.

3 0
3 years ago
Read 2 more answers
I need help ASAP please help me
Rus_ich [418]

Answer:

y=2x

Step-by-step explanation:

It goes up by 2 units every x value so

4 0
3 years ago
Read 2 more answers
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