1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lord [1]
3 years ago
9

Find the value of 'x'. (2x + 1) (6x - 9)

Mathematics
2 answers:
MakcuM [25]3 years ago
5 0

Answer:

(2x+1)(6x−9)

=12x2−12x−9

Step-by-step explanation:

ipn [44]3 years ago
4 0

Answer:

Step-by-step explanation:

12xx^{2}-12<em>x</em>-9

You might be interested in
Calculate the average rate of change of f(x) = x2 4 - 5 for 3 ≤ x ≤ 5.
pogonyaev

Answer:

8

Step-by-step explanation:

Substitute the equation and values into the average rate of change formula.

3 0
3 years ago
At a university, 60% of the 7,400 students are female. The student newspaper reports the results of a survey of a random sample
omeli [17]

Given Information:

Population mean = p  = 60% = 0.60

Population size = N = 7400

Sample size = n = 50

Required Information:

Sample mean = μ = ?

standard deviation = σ = ?

Answer:

Sample mean = μ = 0.60

standard deviation = σ = 0.069

Step-by-step explanation:

We know from the central limit theorem, the sampling distribution is approximately normal as long as the expected number of successes and failures are equal or greater than 10

np ≥ 10

50*0.60 ≥ 10

30 ≥ 10 (satisfied)

n(1 - p) ≥ 10

50(1 - 0.60) ≥ 10

50(0.40) ≥ 10

20 ≥ 10  (satisfied)

The mean of the sampling distribution will be same as population mean that is

Sample mean = p = μ = 0.60

The standard deviation for this sampling distribution is given by

\sigma = \sqrt{\frac{p(1-p)}{n} }

Where p is the population mean that is proportion of female students and n is the sample size.

\sigma = \sqrt{\frac{0.60(1-0.60)}{50} }\\\\\sigma = \sqrt{\frac{0.60(0.40)}{50} }\\\\\sigma = \sqrt{\frac{0.24}{50} }\\\\\sigma = \sqrt{0.0048} }\\\\\sigma =  0.069

Therefore, the standard deviation of the sampling distribution is 0.069.

4 0
2 years ago
A bottle of italian salad contains 0.7 grams of sugar. How many milligrams of sugar are in 6 bottles of italian salad dressing
tatyana61 [14]

Answer:

420mg

Step-by-step explanation:

0.7x6 = 0.42g which is 420mg

1g = 1000mg

8 0
2 years ago
X - 3y = 6 and x - 3y = 9
Kruka [31]
The answer is that there are no solutions to the equations. They are parallel to each other and never cross. They can also be called inconsistent
6 0
3 years ago
Where will you be when your group meets up with the other group ?
Snezhnost [94]
Hqiajksoskskskskososososososplsldldldldldodosoosos
5 0
3 years ago
Other questions:
  • How many meters are in 64 centimeters
    5·1 answer
  • Which pair of measurements is not equivalent? 24 feet, 8 yards 24 inches, 2 feet 10 feet, 120 inches 3 miles, 15,480 feet
    12·1 answer
  • Distribute: 4(x - 3)
    15·1 answer
  • Write 18/31 in simplest form. Use / for fraction line.​
    7·1 answer
  • Liv made punch by mixing 2.8 liters of orange juice, 0.75 liter of pineapple juice,
    6·2 answers
  • Find the length of base ab of trapezoid abcd
    13·1 answer
  • Tara goes on a weekend road trip to see her best friend Natosha Tara lives in Memphis Tennessee and Natasha lives in Nashville w
    12·1 answer
  • Unit 1 geometry basics homework 4 partioning a segment
    6·2 answers
  • Cold antoje help me answering this please :).<br>Fake answer will be reported. ​
    8·1 answer
  • If ram have 30 apple&amp; each apple rs is 26 . 14 are rotten .he had eat 9 apple. 6 apple he sold each price 35 . Now say me ra
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!