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Sophie [7]
3 years ago
6

20 POINTS IF YOU SOLVE!

Mathematics
1 answer:
bonufazy [111]3 years ago
5 0
Question 1: D

Question 2: D

Question 3: C

Question 4: A

Question 5: D
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There are 500 sheets in a pack of paper. 500 sheets of paper weigh 2.5kg.
Paha777 [63]

Answer:

It's a proportion:

500=2.5

50=x

2.5×50:500=0.25kg

50 sheets weigh 0.25 kg

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What is the range of the data represented in the dot plot below?
Anon25 [30]
The range of the data chart is 3
7 0
4 years ago
Multiply the polynomial x (3x-1)(2x+5) also what is the degree of the polynomial
Readme [11.4K]

Answer:

Result after multiplication of polynomial is: 6x^3+13x^2-5x

Degree of polynomial = 3

Step-by-step explanation:

The given polynomials are:

x(3x-1)(2x+5)

In order to multiply the given polynomials we have to work step by step. First of all the polynomials in the bracket will be multiplied and then their result will be multiplied with x.

So, multiplying the polynomials in round brackets first

=x(3x-1)(2x+5)\\= x\{3x(2x+5)-1(2x+5)\}\\=x\{6x^2+15x-2x-5\}\\=x(6x^2+13x-5)

Now multiplying with x

= 6x^3+13x^2-5x

Degree of a polynomial is the highest exponent of variable in the polynomial.

In the acquired result, the highest exponent of x is 3 so the degree is 3.

Hence,

Result after multiplication of polynomial is: 6x^3+13x^2-5x

Degree of polynomial = 3

3 0
3 years ago
One satellite radio service charges $10 per month plus and activation fee of $20. A second service charges $11 per month plus an
Vadim26 [7]
$10 + $20 =$30
$11 + $15=$26
The second activation is better because it is cheaper by $4.
7 0
3 years ago
Evaluate the expression 9 – 2 when z = 4.
vladimir1956 [14]

Answer:

5

Step-by-step explanation:

I'm assuming the 2 was supposed to be "z" so if it was... just substitute z for 4

Giving you 9-4 which equals 5

4 0
4 years ago
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