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faltersainse [42]
4 years ago
14

A rectangle is 4 cm longer than it is wide, and its area is 117 cm2 . find its dimensions.

Mathematics
2 answers:
Orlov [11]4 years ago
7 0

Answer:

Step-by-step explanation:

its 13 cm

Brilliant_brown [7]4 years ago
3 0
The area of a rectangle is equal  L x  W   

4 cm longer than it is wide   L = 4 + <span>W
</span>
L x  W = 117     we replace L here 

(4 + <span>W ) x W = 117 
</span>
4W + W ^2  = 117 

<span>4W + W ^2  -117 = 0
</span>W ^2 +4 W -117 = 0

W² + 4W - 117 = 0

<span>
THEN u want to use the </span>use the quadratic formula
 

OR Factoring gives us

(W + 13)(W - 9) = 0

W = -13 or 9

But it can't be negative, so

W = 9  and L= 9+4 = 13
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50 POINTS PLEASE HELP!!
Vinvika [58]

Answer: <u>A. 35</u>

Step-by-step explanation: The largest prime number less than 50. The largest number less than 50 is 49, but it is not prime, because 49=7·7. The previous number is 48, but it is also composite, because 48=2·2·2·2·3. The previous number is 47, it is prime.

The smallest composite number greater than 10. The smallest number greater than 10 is 11, but it is prime. The next number is 12, it is composite, because 12=2·2·3.

The difference between the largest prime number less than 50 and the smallest composite number greater than 10 is<u> 47-12=35.</u>

6 0
4 years ago
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What needs to be corrected in this construction of a line parallel to AB passing through Csecond arc (centered at E)
satela [25.4K]

Answer:

Step-by-step explanation:

Report by Oopsydaisy 17.06.2016

Answer

Verified by Expert

Answered by

jamuuj

jd3sp4o0y

+41

jd3sp4o0y and 41 more users found this answer helpful

Answer;

C) The second arc should be centered at C.

Assuming the goal is to construct a line parallel to AB that passes through given point C.

-Draw a line through C and across AB at an angle creating D.

- With the compass width about half of DC, and center D, draw the first arc to cross b

4 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B%28%20%7B%20-%20x%7D%5E%7B%20-%201%7D%29%20%5E%7B0%7D%20%20%7D%7B4%20%7By%7D%5E%7
Kipish [7]

Answer:

1/4y

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(-x^-1)^0/(4y^-1*y^2)

anything to the power of 0 gives you 1,

1/(4y^-1*y^2)

-1+2=1

1/4y^1=1/4y

8 0
3 years ago
BC= <br> I need someone help... anybody know how to do this?
Tems11 [23]
<h3>Answer: 10.99</h3>

Work Shown:

Angle B = 20 is the reference angle

AC = 4 is the side opposite this reference angle

BC = x is the unknown adjacent side

tan(angle) = opposite/adjacent

tan(B) = AC/BC

tan(20) = 4/x

x*tan(20) = 4

x = 4/tan(20)

x = 10.9899 approximately (make sure your calc is in degree mode)

x = 10.99 rounding to two decimal places

BC = 10.99

3 0
3 years ago
Does anyone know c &amp; d please
Afina-wow [57]
Subtract the powers
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3 years ago
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