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gayaneshka [121]
3 years ago
11

Please help me with this and explain it to me, thank you!

Mathematics
1 answer:
MArishka [77]3 years ago
7 0
9+2=X
F(x)=f(9) + 2(9 - 1) if i remember correctly.
there would be 31 seat in the 12th row
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16^2+8^2= <br> Show what you did
Slav-nsk [51]

Answer:

Step-by-step explanation:

(16*16)+(8*8)

16. 8

16. 8

—————-

96. 64

160

—————-

256+64=320

5 0
3 years ago
Read 2 more answers
Write as an equation: Mike, Carroll, and Jim, empty their wallets and have $175 total. Mike has three times
Marina86 [1]

Answer:

  C.  j +2j + 3(2j) = 175

Step-by-step explanation:

Let j represent the amount of money Jim has.

Carroll has twice that amount, so has 2j.

Mike has 3 times the amount Carroll has, so has 3(2j).

The sum of these quantities is 175, so the equation can be written ...

  j + 2j + 3(2j) = 175 . . . . . matches choice C

7 0
3 years ago
Alicia had 2/3 of a pound of berries. Alicia let her friend Jennifer eat
kakasveta [241]
Multiply 2/3 by 3/8:

(2*3/3*8 = 2/8 = 1/4)

Jennifer ate a quarter pound of berries.
8 0
3 years ago
Read 2 more answers
If GHJ is equal to LMK, with a scale factor of 5:6, find the perimeter of GHJ.
xxTIMURxx [149]

Answer:  Weeeell,  35

Step-by-step explanation:

1. By definition, the perimeter of a triangle is the sum of the lenght of each side.

2. Then, the perimeter of the triangle LMK is:

P_{LMK}=14+17+11\\P_{LMK}=42

3. If both triangles are congruent and the scale factor is 5:6 (Which you can rewrite as a fraction: 5/6), you must multiply the perimeter of the triangle   LMK by this scale factor.

4. Then, you have that the perimeter of the triangle GHJ is:

P_{GHJ}=42*\frac{5}{6}=35

<em><u>What I have to say:</u></em>

<u><em>I hope I helped you, and pls mark brainliest. Have a great day BYYYE!!!!!</em></u>

4 0
3 years ago
New streetlights will be installed along a section of the highway. The posts for the streetlights will be 7.5 m tall and made of
SIZIF [17.4K]
First, we determine the volumes of the posts may it be cylindrical in shape or rectangular prism. 

(A) cylindrical:
                         ( π(26.7/100)² - π(24.2/100)²)*(7.5) = 0.3 m³
(B) rectangular prism:
                          (40/100)²(7.5) - (35/100)²(7.5) = 0.28125 m³

Then, we calculate for the amount of substance
 (A) cylindrical:   (0.3 m³)(2700 kg/m³) = 810 kg
 (B) rectangular prism : (0.28125 m³)(2700 kg/m³) = 759.375 kg

Then, calculate for the costs
 (A) (810 kg)($0.38/kg) = $307.8
 (B) (759.375 kg)($0.38/kg) = $288.56

Thus, the answer for A is rectangular post 
B. About $19.24 can be saved. 
6 0
3 years ago
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