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3 years ago

The width of a rectangle is 1units less than the length. The area of the rectangle is 42 units

Mathematics

1 answer:

Sever21 [200]3 years ago

8 0

Answer:

Step-by-step explanation:

w=l-1

∵A=l×w

∴A=l×(l-1)

⇒42=l²-l

⇒l²-l-42=0 (After subtracting 42 from both sides)

Two factors of 42 that add to give negative 1 :-7+6

∴ (l-7)(l+6)=0

∴ l=7 or l=-6

but remember that length is a scalar quantity, hence l≠6 but l=7.

I hope this helped you solve this math problem and made you better understand

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lana66690 [7]

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4 years ago

A basketball costs $15.00. If the sales tax is 6%, which equation can be used to find the amount of tax?

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3 years ago

The volume of a sphere is a function of its radius,

jeka57 [31]

Hi there!

»»————-　★　————-««

I believe your answer is:

$6525\text{cm.}^3$

Keep in mind that this is APPROXIMATE.

»»————-　★　————-««

Here’s why:

⸻⸻⸻⸻

$\boxed{\text{Volume of a Sphere Is:}}\\\\V = \frac{4}{3} \pi r^3\\----------------\\\rightarrow \text{We are given the radius of } 11.6\text{ cm.}\\----------------\\V = \frac{4}{3}(3.14) (11.6)^3\\\\V = \frac{4}{3}(3.14) 1560.896\\\\V \approx 6534.95125\text{cm.}^3\\\\\boxed{V \approx 6535\text{cm.}^3}$

⸻⸻⸻⸻

»»————-　★　————-««

Hope this helps you. I apologize if it’s incorrect.

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3 years ago

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