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Kaylis [27]
3 years ago
7

Which polynomial is equal to (x + 1)(2x + 1)

Mathematics
2 answers:
VladimirAG [237]3 years ago
6 0

Answer:

2x^2+3x+1

Step-by-step explanation:

FOIL

tiny-mole [99]3 years ago
4 0

Answer:

2x^2+3x+1, I believe.  

Step-by-step explanation:

Multipy 'em

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How do i solve this?
vazorg [7]
Usually I would use my head, but you can use whatever you want.
3 0
2 years ago
Matthew wants to estimate the mean height of students attending his college. He records the heights of 100 randomly selected stu
Mnenie [13.5K]

The correct option that shows the population of the research carried out by Matthew is;

<u><em>Option D; all the students attending the college</em></u>

<u><em></em></u>

  • We are told that Matthew wants to estimate the mean height of students attending his college.

  • Now, let us say the total number of students in his college is x. If he decides to select 100 students randomly to record their height, it means this 100 students is a sample out of the total number of students which is x that is the population.

        In conclusion, we can say that the population of this research by Matthew is the total number of students that attend the college.

Read more at; brainly.com/question/6028584

6 0
2 years ago
Find the missing value when given the modulus.
kolbaska11 [484]

Solving the complex number, we get the value of the missing value that is ‘a’ = -6

We  have been given the expression as

          |a – i| = √37          (1)

Which is an expression of complex number. The general expression of complex number is given as

    z = x + iy

 where x is the real part and iy is the imaginary part

To find the modulus value, the formula is given by,

  |z| = |x + iy|

   |z| = √[(real part)2 + (imaginary part)2]

 |z| = √(x2 + y2)

According to the question, |z| = √37         (2)

Equating equation (1) and (2), we get

√(a2 + 1) = √37

(a2 + 1) = 37

a2 = 37 – 1

a2 = 36

a = √36

a = ±6

Now value of a can be 6 or -6. We have been given that the modulus is in third quadrant.

Hence the value will be negative. Therefore, the missing value will be -6.

Learn more about complex number here : brainly.com/question/5564133

#SPJ9

3 0
2 years ago
Decrease 700kg by 25% <br> (With working out)
Natali5045456 [20]

Answer: 525kg

Step-by-step explanation:

To decrease 700kg by 25% implies

700 - 25% of 700kg

25% of 700 = 25/100 × 700kg

0.25 x 700

= 175

Therefore, to decrease 700kg by 25%, since 25% is 175kg, we subtract 175kg from 700kg

700kg - 125kg

= 525kg

3 0
4 years ago
Read 2 more answers
10.5 equal or less than 10.005
maksim [4K]
10.5 is more than 10.005
5 0
3 years ago
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