The area of a rectangle is 21 m squared, and the length of the rectangle is 1 m less than twice the width. Find the dimensions of the rectangle. Help?

Answers

Answer 1

Answer: This should be right because I checked it afterwards
Width=W
Length=2W-1
The equation is as follows
W(2W-1)=21
$2W^(2)$ -W=21
Subtract 21 from each side
$2W^(2)$ -W-21
Group them/put them in parentheses..can't think of the right word right now
(2W-7)(W+3)
-7=I7I
You only do this for the first parenthese, 7÷2W=3.5
W=3.5
If W=3.5 then 2W-1⇒2×3.5-1⇒7-1⇒6
Length=6
If W=3.5 and L=6, then W(2W-1)=21
3.5(2×3.5-1)=21
Solve in parentheses first
3.5(7-1)=21
3.5(6)=21
3.5×6=21
The width is 3.5
The length is 6

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Answers

That sure sounds like a coupon to me

Answer:

a coupon- apex

Step-by-step explanation:

Which statement correctly describes the relationship between the graph of f(x)=8xf(x)=8x and the graph of g(x)=4f(x)g(x)=4f(x) ? a.the graph of g(x)g(x) is translated 4 units left from the graph of f(x)f(x) .
b.the graph of g(x)g(x) is translated 4 units right from the graph of f(x)f(x) .
c.the graph of g(x)g(x) is a horizontal stretch of the graph of f(x)f(x) by a factor of 4.
d.the graph of g(x)g(x) is a vertical stretch of the graph of f(x)f(x) by a factor of 4.?

Answers

The graph of g(x) is a vertical stretch of the graph of f(x) by a factor of 4.

If a thermometer indicates 30 degrees Celsius, what is the temperature in degrees Fahrenheit? A. 54°F
B. 17°F
C. 24°F
D. 86°F

Answers

To calculate the Fahrenheit temperature:

-- Take the Celsius temp.
-- Multiply by 1.8 .
-- Then add 32 to the product.

30°C ==> (30 x 1.8) = 54 ==> 54 + 32 = 86°F.
_____________________________________

To calculate the Celsius temperature:

-- Take the Fahrenheit temp.
-- Subtract 32 .
-- Multiply what's left by 0.55... (5/9 to be exact).

86°F ==> (86 - 32) = 54 ==> (54) x (5/9) = 30°C .

Answer:86F

Step-by-step explanation:

Solve for x. Round to the nearest tenth of a degree, if necessary.

Answers

Sin (angle) = opposite leg / hypotenuse

Sin(x) = 2.1/4

x = arcsin(21./4)

x = 31.7 degrees

What is the volume of a right circular cylinder with a diameter of 19.6 yd and a height of 23.52 yd? Enter your answer in the box. Use 3.14 for pi and round only your final answer to the nearest hundredth.