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Sergeeva-Olga [200]
3 years ago
9

I need help with this question. I cant find the surface area of this square pyramid. Please help me.

Mathematics
1 answer:
docker41 [41]3 years ago
4 0
25 bc 5 times 5 is 25
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Write the following expression
Rashid [163]

Answer:

2x^2 - 18x + 45

Step-by-step explanation:

Standard form is ax^2 + bx + c

Expand the (x-5)^2 = (x-5)(x-5) --

x^2 - 5x - 5x + 25

x^2 - 10x + 25

So we now have

2(x^2 - 10x + 25) + 2(x-5) + 5

From here, distribute the 2 to each term in x^2 - 10x + 25, and distribute the 2 to each term in x - 5.

2x^2 - 20x + 50 + 2x - 10 + 5

Combine like terms

2x^2 - 20x + 2x + 50 - 10 + 5

2x^2 - 18x + 40 + 5

2x^2 - 18x + 45

6 0
3 years ago
Help please I'm not sure if I got it right, I'm a bit confused. 5th grade math
dmitriy555 [2]

Answer:

  check your math

Step-by-step explanation:

The first subtraction was correct:

  36 -7 3/4 = 28 1/4

The second subtraction needs to be revisited.

  28 1/4 -6 2/4 = 27 5/4 -6 2/4 = 21 3/4

__

You can do what you did, but you need to pay attention to the signs.

  28 1/4 -6 2/4 = (28 -6) +(1/4 -2/4) = 22 - 1/4 = 21 3/4

The result of subtracting 2/4 from 1/4 is -1/4, not +1/4.

_____

The length of the first cut piece was 21 3/4 inches.

8 0
3 years ago
Read 2 more answers
What is the slope of (2,1.5) and (-4,-3)
gayaneshka [121]
3/4 or .75 hope this helps!!

3 0
3 years ago
Answer this question please than you now by tody
kolbaska11 [484]

Answer:

the answer is line RQ and line OP

8 0
3 years ago
Chen is checking a division problem by doing 152x4 equal to 608 plus 2 which is 610 what problem is chen checking?
Marizza181 [45]
610 divided by 4 because when you divide that you will get 152
8 0
2 years ago
Read 2 more answers
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