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
valentinak56 [21]
3 years ago
9

Hence, or otherwise, simplify fully (x² + 4) - (x - 2)2

Mathematics
1 answer:
raketka [301]3 years ago
6 0

Answer:

fully simplified answer: x^2-2x+8

Step-by-step explanation:

You might be interested in
A teacher keeps track of the number of students that participate at least three times in an optional study session each year. He
Anastasy [175]

Answer:

It is not C got it wrong.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The null hypothesis and the alternate hypothesis are: H0: The frequencies are equal. H1: The frequencies are not equal. Category
OLga [1]

Answer:

Reject H0

Step-by-step explanation:

Given :

H0: The frequencies are equal. H1: The frequencies are not equal

Category f0 A 10 B 30 C 30 D 10

Total f0 = (10 + 30 + 30 + 10) = 80

Expected frequency is the same for all categories :

Expected frequency = 1/4 * 80 = 20

χ² = Σ(observed - Expected)² / Expected

χ² = (10-20)^2 / 20 + (30-20)^2 /20 + (30-20)^2 / 20 + (10-20)^2 / 20

χ² = (5 + 5 + 5 + 5) = 20

Pvalue = 0.00017

Pvalue < α

5 0
3 years ago
What's 75% off of 4.97
Alenkasestr [34]
That would be 1.2425
7 0
3 years ago
Read 2 more answers
If the volume of a cube is 8cm^3 what is the surface area of the cube
Varvara68 [4.7K]

Answer:

i am sorry if it is wrong my answer is 1,536

Step-by-step explanation:

so if i am correct 8cm³ the formula for a surface area of a cube is:

SA=s³

6 0
3 years ago
The original price of a computer game is 45$ The price is marked down by 18$ what percent of the original price is the markdown?
OLga [1]

Answer:

$27

Step-by-step explanation:

$45 - $18 = $27

Percentage 150% (27 divided by 18 = 1.5, shift the decimal right two times and add the zero at the end which gives you 150%)

4 0
2 years ago
Other questions:
  • I say it is B but want to be sure
    15·1 answer
  • Which point lies on the circle represented by the equation (x + 5)2 + (y − 9)2 = 82?
    6·1 answer
  • Consider this equation: –2x – 4 + 5x = 8 Generate a plan to solve for the variable. Describe the steps that will be used.
    12·2 answers
  • The answer to the question
    10·2 answers
  • What is the product of (X4/3)(X2/3) ?
    9·1 answer
  • Edwin went to the grocery store and bought several pounds of fruits. The fruit cost $2 per pound. He bought 2.5 pounds of apples
    15·1 answer
  • Can someone please help me with this? help would be very much appreciated!
    11·2 answers
  • A peqch pie is made with 13 peaches, which are evenly distributed throughout the pie. If Joe ate one slice that contained exactl
    12·1 answer
  • What is the slope? Please help me outt!
    5·2 answers
  • HELP ASAP PLS
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!