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d1i1m1o1n [39]
3 years ago
14

12 + 5 + 32 × 10 − 5

Mathematics
2 answers:
Masja [62]3 years ago
5 0

Answer:

332

Step-by-step explanation:

notka56 [123]3 years ago
5 0
332 is the answer hope it helps
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The length of a rectangular garden ABCD is 9 feet more than its width. It is surrounded by a brick walkway 4 feet wide as shown
Anna71 [15]

Answer:

  16.5 ft by 25.5 ft

Step-by-step explanation:

Let w represent the width of the garden in feet. Then w+9 is the garden's length, and w(w+9) represents its area.

The surrounding walkway adds 8 feet to each dimension, so the total area of the garden with the walkway is ...

  (w+8)(w+9+8) = w^2 +25w +136

If we subtract the area of the garden itself, then the remaining area is that of the walkway:

  (w^2 +25w +136) - (w(w+9)) = 400

  16w + 136 = 400 . . .simplify

  16w = 264 . . . . . . . . subtract 136

  264/16 = w = 16.5 . . . . . width of the garden in feet

  w+9 = 25.5 . . . . . . . . . . .length of the garden in feet

5 0
3 years ago
Identify:12 - 9 + 3a - 2a + 6b - 3b + b​
shusha [124]

Answer: 3 + a + 10b

Step-by-step explanation: combine like terms

3 0
3 years ago
Read 2 more answers
What are the values of x and y in the figure shown below?
n200080 [17]
First let's find y. We know the sum of angles equals 180, so if we add the angles of ABC, we'd get 180.
30+y+80+y=180
110+2y=180
2y=70
y=35

You could solve x ,but the only response with y=35 is c. But to solve for x, you'd ad 35 35 and xwhich would equal 180.
35+35+x=180
70+x=180
x=110
5 0
3 years ago
The function f(x) = 400 * (1.2) ^ x models a population of mice after x years. What will the population be in 7 years ?
Ulleksa [173]

Answer:

Step-by-step explanation:

400×1.2⁷ ≅ 1433 mice

8 0
2 years ago
A rectangular prism has a dimension x units ,2x units and x+8 units . Which expression represents the surface area of the prism
Alekssandra [29.7K]

Formula to find the surface area of the rectangular prism is:

2wl + 2lh + 2hw,

where w is width, l is the length, and h is height of the prism.

Given, the dimension x units ,2x units and x+8 units .

So, we can plug in w= x, l= 2x and h= x+8 in the above formula to get the expression for the surface area of the prism. Hence,

Surface area= 2wl + 2lh + 2hw

=2*x*2x+ 2*2x*(x+8)+2*(x+8)*x

= 4x²+4x(x+8)+2x(x+8) (By multiplying)

= 4x²+4x²+32x+2x²+16x (Multiplying by distribution)

=(4x²+4x²+2x²)+(32x+16x ) (Making the groups of like terms)

= 10x²+48x (Adding the like terms)

So, the expression 10x²+48x units² represents the surface area of the given prism.

5 0
3 years ago
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