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snow_lady [41]
3 years ago
9

7th grade work ! I’ll give brainliest!

Mathematics
1 answer:
marysya [2.9K]3 years ago
3 0

Answer:

Step-by-step explanation:

-418 + 387 - 94 - 132

-31 - 94 - 132

-125 - 132= -257 feet

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What is the answer ?????​
alukav5142 [94]

Answer:

4.8÷40=4.8÷4÷10

           =0.12

0.12=12/100

      =3/25

3 0
2 years ago
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Which expression is equivalent to ? Assume
gladu [14]

[(2x³y⁴)² × 2x]½

(2x³y⁴)½ ×(2x)½

2x³y⁴(2x)½

3 0
3 years ago
A theater has 56 rows of seats. If there are 13 seats in the first row, 18 in the 2nd row, 23 in the 3rd row. How many seats are
Anna35 [415]

Answer:

8428

Step-by-step explanation:

According to the Question,

  • Given, A theater has 56 rows of seats. If there are 13 seats in the first row, 18 in the 2nd row, 23 in the 3rd row.

We have a number sequence  13, 18, 23, ...

  • We can say that this is an arithmetic sequence because of the common difference 'd', is equal to 5, and the first term 'a1' is equal to 13.
  • The formula for the sum of an arithmetic sequence with n terms is given is S_n= \frac{n}{2} [2a_1+(n-1)d]S .

Substitute the given values into the equation to solve for the sum of the 56 rows of seats.

S_56= \frac{56}{2}[2(13)+(56-1)(5)]\\S_{56}=28\left[26+275\right]\\S_{56}=28\left[301\right]\\S_{56}=8428

Therefore, there are 8428 seats in all.

4 0
3 years ago
Which expression is a PRODUCT?
Lesechka [4]
The answer is A thanks for asking
8 0
3 years ago
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Determine the solution for the system of equations below.
NeX [460]

Answer:

(0,0)

Step-by-step explanation:

4x + 4x = 0

 8x = 0

8x / 8 = 0 / 8

 x = 0

y = 4x

y = 4(0)

y = 0

8 0
3 years ago
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