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german
3 years ago
9

*40 POINTS* and BRAINLIEST for correct answer

Mathematics
2 answers:
trasher [3.6K]3 years ago
7 0

Answer:

x^2+23x+49

Step-by-step explanation:

The formula for the area of a rectangle typically is lw, where l is length and w is width. The area of the big rectangle is (x+10)(2x+5)=2x^2+25x+50 units. The area of the square cut out inside is (x+1)(x+1)=x^2+2x+1 units. Subtracting the second expression from the first, you get x^2+23x+49. Hope this helps!

Mekhanik [1.2K]3 years ago
7 0

Answer:

x^2+23X+49

Step-by-step explanation:

shown in picture above

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PLEASE HELP!
pochemuha

Answer:

1) c.

2) d.

Hope this helps :)

Step-by-step explanation:

5 0
4 years ago
Solve for x: 3(x + 1) = −2(x − 1) + 6. (1 point) Group of answer choices 1 4 5 25
Pie

Answer:

x = 1

Step-by-step explanation:

3 (x + 1) = -2 (x - 1) + 6

Expand the brackets on both sides.

3x + 3 = -2x + 2 + 6

3x + 3 = -2x + 8

Solve for x.

3x + 2x = 8 - 3

5x = 5

x = 1

Hope this helped!

4 0
3 years ago
Is my answer correct or incorrect? True or false
olchik [2.2K]

Answer:

Youre correct

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Olivia has a 20 meter-long fence that she plans to use to enclose a rectangular garden of width w. The fencing will be placed ar
german

Answer:

Step-by-step explanation:

Length of garden = 10-w

Area = (10-w)w = 18.75

w² - 10w + 18.75 = 0

7 0
3 years ago
Read 2 more answers
The length of a standard jewel case is 3 cm more than its width. The area of the rectangular top of the case is 304 cm squared.
valentina_108 [34]

Answer:

width = 16 cm

length = 19 cm

Step-by-step explanation:

Let the width be x cm.

Given that length is 3 cm more than width then

length =  x+3 cm

area of rectangle = 304 square cm. -----1

area of rectangle is given by

area =length * width

substituting from equation 1 and length and width in terms of x we have

304 = x(x+3)

=> 304 = x^2+3x\\\\=> 304 -304= x^2+3x -304\\=> 0= x^2+3x -304\\=>  x^2+3x -304 = 0\\=> x^2+19x - 16x -304 = 0\\=> x(x+19 ) -16(x+19) = 0\\=> (x-16) (x+19 )= 0\\x-16 = 0  \ or \ x+19 = 0\\ x= 16 \or \ x = -19

As length cannot be negative hence x = 16

Thus width = x = 16 cm

length = x+3 = 16+3 = 19 cm

6 0
4 years ago
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