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topjm [15]
3 years ago
11

Simplify the following expression (3x-5)(4-9x)+(2x+1)(6x^2+5)

Mathematics
1 answer:
timama [110]3 years ago
6 0
Expand out the brackets and simplify, largest indices first.
12x³-21x²+67x+30
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The square root of 1521 = 39, evequate 390 to the 2nd power
ki77a [65]

Answer:

390 to the second power is 152100

4 0
3 years ago
Put these numbers in order from smallest to biggest. Standard form need help ASAP!!
SSSSS [86.1K]
C because when you expand all the numbers, they go in the same order as c has them.
8 0
2 years ago
PLEASE HELPPPPP
Flauer [41]

Answer:

Cost of 1 rose bush = x = $5

Cost of 1 geraniums = y = $2

Step-by-step explanation:

DeShawn and Mike each improved their yards by planting rose bushes and geraniums. They bought their supplies from the same store.

Let us represent:

Cost of 1 rose bush = x

Cost of 1 geraniums = y

DeShawn spent $13 on 1 rose bush and 4 geraniums.

x + 4y = 13..... Equation 1

x = 13 - 4y

Mike spent $56 on 10 rose bushes and 3 geraniums.

10x + 3y = 56....... Equation 2

We substitute 13 - 4y for x in Equation 2

10(13 - 4y) + 3y = 56

130 - 40y + 3y = 56

Collect like terms

- 40y + 3y = 56 - 130

-37y = -74

y = -74/37

y = $2

Solving for x

x = 13 - 4y

x = _13 - 4 × $2

x = $13 - $8

x = $5

Therefore,

Cost of 1 rose bush = x = $5

Cost of 1 geraniums = y = $2

7 0
3 years ago
What are the missing numbers?
n200080 [17]
2^2. 2 and 2. Because 2 and 2
8 0
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Alice is shopping for cheese. She notices that the cheddar and brie have the same volume, even though their shapes are different
shutvik [7]
The correct answer is B: 4 cm
6 0
3 years ago
Read 2 more answers
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