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
JulsSmile [24]
2 years ago
8

Solve the equation for all values of x by completing the square. x2 + 8.0 + 15 = 0

Mathematics
1 answer:
Aleonysh [2.5K]2 years ago
6 0

Answer:

x= -3

x= -5

Step-by-step explanation:

x^2 + 8x + 15 = 0

find which 2 numbers when multiplied equal 15 and when added equal 8

they are 3 and 5

(x+3)(x+5)

x+3 =0

x+5=0

x= -3

x= -5

You might be interested in
If I'm 16 years old, how many months, days, hours, minutes, and seconds old am I?
irakobra [83]
16*12=months
16*365=days
Then take that answer and multiply it by 24 for hours then take that number and multiply it by 60 for minutes and then take that number and multiply it by 60 for seconds.
8 0
3 years ago
Decrease R1400 in the Ratio 7:3​
goldfiish [28.3K]

Answer:

Step-by-step explanation:

It's hard to tell what you mean. I'm going to assume you mean that you want what is left to be 3/7 less.

1400 - 3/7 1400 = 1400 - 600 = 800

8 0
3 years ago
If the circumference of a circle measures 5 pie cm, what is the area of the circle in terms of pie?
saw5 [17]

Answer:

6.25π cm²

Step-by-step explanation:

pi = π

Circumference = 5πcm

Now first we should find radius(r)

2πr = 5π cm

pie will be cancelled and we get here

r = 5/ 2 cm

Therefore r = 2.5 cm

Now

Area (A) = πr²

= π * 2.5²

= 6.25π cm²

4 0
3 years ago
Simplify : 64 - (2 + 1) ^ 3 + 1 ^ 5
murzikaleks [220]

Answer:

answer is 38

Step-by-step explanation:

5 0
3 years ago
If Sarah's mom drive 20 miles to work, drives 2,000 miles to New York and she lives in Rhode Island. How many total feet did she
mafiozo [28]
To solve this problem, you first have to add the total miles driven.

2000 + 20 = 2020

Then, you have to convert miles into feet. There are 5280 feet in a mile, so you multiply that by 2020.

5280 * 2020 = 10665600

Therefore, the total feet driven is 10665600. I hope this helped, good luck!
5 0
3 years ago
Other questions:
  • Bilal's fishing line was on a spool with a radius of 4cm. Suddenly, a fish pulled on the line, and the spool spun 16 times befor
    14·2 answers
  • If nine people are in a room and every person shakes hands exactly once with each of the other people, how many handshakes will
    11·1 answer
  • How many ways can the letters of the word EIGHT be arranged if the first letter must be an E?
    8·1 answer
  • Can someone plese help me count my bobux please i have 4 but i dont now how to count it all
    15·1 answer
  • Jason has saved 8 quarters from washing cars how many cents does jason have
    7·2 answers
  • Find the area of parallelogram and round to the nearest tenth.​
    13·1 answer
  • Find the area of the figure below
    15·1 answer
  • Find the distance between the points (8,-3) and (2, -3).​
    12·1 answer
  • Math screenshot under cut
    7·2 answers
  • The aquarium has 10 more red fish than blue fish. 60 percent of the fish are red. How many blue fish are in the aquarium? Show y
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!