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murzikaleks [220]
3 years ago
7

Help help i need help with this

Mathematics
1 answer:
aliina [53]3 years ago
5 0

Answer:

1) 8 2) -33/9

Step-by-step explanation:

1) (1/2)x = -1/2 + 9/2

(1/2)x = 4 x = 8

2) distributing 3/2, 9x/2 - 15/2 = -24

9x/2 = -24 + 15/2

9x/2 = -33/2

9x = -66/2

9x = -33

x = -33/9

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Answer:

each bag of candy is $6.00

Step-by-step explanation:

1 bag would cost $6.00

1×$6.00=$6.00

6 bags × $6.00 = $36.00

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muminat

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1. There are 10 people in a math club. Three people will be chosen for the Pi Day committee. How many different ways can club me
kaheart [24]

Answer: 120

Step-by-step explanation:

From the question, we are informed that there are 10 people in a math club and that three people will be chosen for the Pi Day committee.

The number of different ways that the club members can structure the committee goes thus:

This can be solved by:

nCr = n! / r! (n - r)!

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3 0
3 years ago
Multiply.Express your answer in standard form.(3 points)(x² -4x + 3)(-3x²+ 7x –1)
bija089 [108]

Answer:

-3x^{4} + 19x^{3} - 38x^{2} + 25x - 3

Step-by-step explanation:

1) distribute x² into (-3x² + 7x - 1) to get: -3x^{4} + 7x³ - x²

2) distribute -4x into (-3x² + 7x - 1) to get: 12x³ - 28x + 4x

3) distribute 3 into (-3x² + 7x - 1) to get: -9x² + 21x - 3

4) combine all the answers together into one equation:

-3x^{4} + 7x³ - x² + 12x³ - 28x² + 4x - 9x² + 21x - 3

5) combine like terms:

7x³ + 12x³ = 19x³

-x² + -28x² + -9x² = -38x²

4x + 21x = 25x

6) combine answers together into one equation:

-3x^{4} + 19x³ - 38x² + 25x - 3

3 0
3 years ago
A farmer planted 2/5 of his forty acres in corn and another 3/10 of his land in wheat
Mariana [72]

Answer:

7/10

Step-by-step explanation:

8 0
3 years ago
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