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never [62]
3 years ago
12

The number of bricks on the bottom row was 21, and each row above it had 2 fewer

Mathematics
2 answers:
dlinn [17]3 years ago
7 0

Answer:

121

Step-by-step explanation:

21-2x

add all of the sums from 0 - 11

emmainna [20.7K]3 years ago
3 0

Answer: 121

Step-by-step explanation:

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Help, please and thanks
Stella [2.4K]

Answer:

18 \sqrt{5}

or 40.2 in decimal form

8 0
3 years ago
A coral reef grew 6000 millimeters taller. How much did it grow in meters?
Sliva [168]

You have to convert millimeters in meters, 1000 mm = 1 m,

6000 mm = 6 m

6 m is your answer.

5 0
3 years ago
2x2 − 5x + 3 HELPPPPPPPP
kompoz [17]

Answer:

-x+3

Step-by-step explanation:

2x^2-5x+3 Square 2x

4x-5x+3 combine like terms

-x+3

Hope this helps

4 0
3 years ago
Read 2 more answers
Find the simple interest accrued on a $500 investment made for 2 years at an interest rate of 8% per year.
Artemon [7]

Answer:

3,125 i think sorry if this is incorrect....

Step-by-step explanation:

Answer:

P = $ 3,125.00

Equation:

P = I / rt

Calculation:

First, converting R percent to r a decimal

r = R/100 = 8%/100 = 0.08 per year,

then, solving our equation

P = 500 / ( 0.08 × 2 ) = 3125

P = $ 3,125.00

The principal required to

accumulate interest of $ 500.00

on a rate of 8% per year for 2 years is $ 3,125.00.

3 0
3 years ago
P(0,-1) that is parallel to the line y= -2x+3​
Mandarinka [93]

Answer:

y=2x+3

A parallel line is only supposed to have an oposite slope.

3 0
3 years ago
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