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
yan [13]
3 years ago
5

Factor this trinomial. x2 - 8x+15

Mathematics
2 answers:
Jobisdone [24]3 years ago
6 0

Answer:

(x-3)(x-5)

Step-by-step explanation:

The expression is:

x2 - 8x+15

Break the middle term:

Coefficient of first term will be multiplied by constant

1*15 = 15

Now we have to find out which numbers will be multiplied to get 15

and also by adding those numbers we get the middle term:

3*5=15

3+5 = 8

Now break the middle term:

x^2-3x-5x+15

x(x-3)-5(x-3)

(x-5)(x-3)....

The factors are (x-5)(x-3)....

kupik [55]3 years ago
4 0

Answer:

(x - 5)(x - 3)

Step-by-step explanation:

You need two numbers that multiply to 15 and add to 8. There aren't many numbers that will do that.

15 and 1 is one pair of numbers. They multiply to 15 but don't add to 8.

6 and 2 add to 8 but don't multiply to 15.

5 and 3. This in some form is your answer, but handle it carefully.

(x - 5)(x - 3)

The 5 and 3  both have to be minus.

You might be interested in
The value of y varies directly with x. Which function represents the relationship between x and y if y=20/3 when x=30
kkurt [141]
Set it up as a direct variation: y/x=k, where k is the constant of variation. (20/3)/30=k gives us a k value of 8/9. The function would be y=8/9x
4 0
3 years ago
In stratified random sampling,(A) randomly selected elements within each of the strata form the sample.(B) all elements within t
otez555 [7]

Answer: (A) randomly selected elements within each of the strata form the sample.

Step-by-step explanation:

Stratified random sampling is a random sampling technique in statistics .

  • It includes the partition of the entire population into sub-parts called strata.
  • The strata are formed on the basis of the characteristics shared by members .
  • After the formation of strata, researcher randomly selects participants from each strata to ensure that that the participant of every group must involve in the sample to represent each character.

Hence, the correct answer is :

(A) randomly selected elements within each of the strata form the sample.

8 0
3 years ago
A homeowner wants to build a circular patio. if the diameter of the patio is 20 feet, what is its area to the nearest whole numb
andreyandreev [35.5K]
We are asked to find the area of patio. It is circular so formula used for area is given by:
A= r^{2}  \pi
Where
r = radius = diameter / 2 = 20 / 2 = 10 feet

A = 10^{2} \pi =100 \pi
When we round this to the nearest whole number:
A =100 \pi = 314.159=314ft^{2}
5 0
4 years ago
Solve the multiplication problem below.
yuradex [85]

Answer:

What even is this???

Step-by-step explanation:

....

4 0
3 years ago
HURRY!!!!!! Which expression is equivalent to ____? ^^^
Pepsi [2]

24^{\frac 1 3} = \sqrt[3]{8 \cdot 3} = 2 \sqrt[3]{3}

Answer: second choice


7 0
3 years ago
Other questions:
  • Adam bought three laptops for his office at a total cost of $1,300. The shopkeeper tried to sell Adam some upgrades and accessor
    12·2 answers
  • What’s the sum of interior angles of a 45-gon?
    8·1 answer
  • Choose the equation that represents the graph below: (1 point)
    14·1 answer
  • A test driver has to drive a car on a 1-mile track for two rounds in a way, that his average speed is 60 mph. On his first round
    6·1 answer
  • (-18)+1+13+(-15)= ?​
    11·1 answer
  • What form is y-3=2/3(x-1)
    6·1 answer
  • What is the correct answer?
    6·2 answers
  • Can anyone help me do the slope for this?
    7·1 answer
  • Y = -3x + 6
    7·2 answers
  • 7. Four Sierra Vista students went to the AMC theater last night. Admission
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!