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horsena [70]
3 years ago
13

Please help need correct answer will give brainiest

Mathematics
1 answer:
Oksanka [162]3 years ago
8 0
The answer is 20ft
Enjoy
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Simplify the polynomial expressions by combining like terms, and then multiply the resulting binomial expressions to find their
Lesechka [4]
For this case we have the following expression:
 (8x - 9 - 2x) (15 + 5x - 5)

 The first thing we must do is to rewrite the expression as the product of two binomials.
 To do this, we add similar terms.
 We have then:
 (6x - 9) (5x + 10)

 Then, doing distributive property we have:
 30x ^ 2 + 60x - 45x - 90

 Adding similar terms:
 30x ^ 2 + 15x - 90
 Answer:
 
The simplified expression is:
 
30x ^ 2 + 15x - 90
7 0
4 years ago
Find the value of the expression (3x−12)+12(xy−10)(3x-12)+12(xy-10) for x=4x=4 and y=6y=6 .
Allisa [31]
(3x-12)+12(xy-10), x=4, y=6
(3(4)-12)+12((4)(6)-10)
(12-12)+12(24-10)
0+12(14)
12*14=168
6 0
3 years ago
What is the area, in square centimeters, of the shape below?
Karolina [17]

Answer:

21.46 cm squared

Step-by-step explanation:

3.8x5.8=21.46

8 0
3 years ago
Dante has been pitting one penny in his bank every day. Now he has 161 pennies.For how many weeks has Dante been adding pennies
Alja [10]
1 penny each day = 7 pennies each week
total pennies = 161

divide 161 by 7 = 23 weeks
5 0
3 years ago
What is the area of a square with an apothem length of 14 inches?
e-lub [12.9K]

Answer:

784

Step-by-step explanation:

A = 1/2ap       A = area , a = apothem , p = perimeter  

a = 1/2s          a = apothem length , s = side length

14 = 1/2s , 14(2) = 1/2s(2) , 28 = s

p = 4(s) , p = 4(28) , p = 112

A = 1/2ap , A = 1/2(14)(112) , A = 784

                 or

A = s^2 , A = 28^2 , A = 784

4 0
3 years ago
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