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Maru [420]
2 years ago
10

What is the answer for this problem I need help!

Mathematics
1 answer:
Ksenya-84 [330]2 years ago
8 0

Answer:

x = 6 cm

Step-by-step explanation:

We can write equations for length and width using the information given:

length = 2 + x

width = 2x - 5

Area = (length)(width) = 56

Area = (2 + x)(2x - 5) = 4x - 10 + 2x² - 5x

Simplifying:

Area = 2x² - x - 10 = 56

2x² - x - 66 = 0

Factoring:

(2x + 11)(x - 6) = 0

x = 6, -11/2

We choose the positive number: x = 6 cm

To check, plug in 6 for x:

Area = (2 + x)(2x - 5) = 56

(2 + 6)(12 - 5) = 56

(8 × 7) = 56

56 = 56

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-38/-8 plz help me plz​
Bad White [126]

Answer:

(-38) / (-8)

equals 4.75

a negative divided by a negative is always a positive

Step-by-step explanation:

5 0
3 years ago
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Jason deposited $18 000 in a bank that offers an interest rate of 5% per annum compounded
8_murik_8 [283]

Answer:

$1995.97.

Step-by-step explanation:

Amount in bank after 20 days =

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3 0
2 years ago
Determine the density of the rock using correct significant digits. The mass of the rock is 25.69 g.
Dvinal [7]
Density = mass / volume

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5 0
3 years ago
What is the answer for B and how did you get it ?
Orlov [11]
The length of side b is 52 because using the Pythagorean theorem we know that a² + b² = c². When we plug in the known values we would get 1521 + b² = 4225, and when we subtract 1521 from both sides we would get b = 52.
7 0
3 years ago
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Thank u for all the amazing answers everyone :)
Dennis_Churaev [7]
I'm sorry if I wasn't there to help but thank the others, and thank you :)
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