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
irga5000 [103]
3 years ago
6

If using the method of completing the square to solve the quadratic

Mathematics
1 answer:
In-s [12.5K]3 years ago
4 0

Answer:

100

Step-by-step explanation:

20/2= 10 and 10 squared is 100 but you have to move the -6 to the opposite side

You might be interested in
A pot of soup, currently 13 Celsius above room temperature, is left out to cool. If that temperature difference decreases by 10%
Yuki888 [10]
Please need more statements
5 0
3 years ago
swimming downstream you can swim 2 miles in 40 minutes, and upstream you can swim 2 miles in 60 minutes...how long will it take
Akimi4 [234]

Answer:

Vp = 1 / 24  miles/min   the speed in still water

Step-by-step explanation:

Lets call Vp speed of swimmer   and  Vw  speed of water then:

Downstream   Vp  +  Vw  

Swimmer does  2 miles in 40 minutes then he does

1  mile  in  20 minutes

Upstream     Vp - Vw

Swimmer does  2 miles in 60 minutes then he does

1 mile in 30 minutes

We get the following system:

(Vp  +  Vw )* 20  = 1    (1)         and

( Vp -  Vw )* 30   = 1    (2)

Solving the system

From equation (1)

20*Vp  +  20* Vw  =  1       ⇒     Vw  =  ( 1 - 20*Vp ) /20

Plugging that value in the second equation

(Vp  - Vw )* 30  = 1      ⇒  [ Vp - ( 1 - 20*Vp )/20 ] * 30  = 1

[20*Vp - 1 + 20*Vp ] * 30/20 = 1     ⇒ [ 40*Vp - 1 ] *30  =  20     or

 [ 40*Vp - 1 ] *3 = 2

120* Vp  - 3  = 2     ⇒   120*Vp  =  5   and   Vw  = 1 /120 miles/min

Vp  =  5 / 120 miles/min    or  

Vp = 1 / 24  miles/min

and speed of water   Vw  =  1 / 120

8 0
3 years ago
Secant TP and tangent TR intersect at point T Chord SR and chord PO intersect
DochEvi [55]

Answer:

(C)x=11.6, y=23.2

Step-by-step explanation:

Using Theorem of Intersecting Secant and Tangent

TQ$ X TP=TR^2

10(10+x+4)=16^2\\10(14+x)=256\\140+10x=256\\10x=256-140\\10x=116\\$Divide both sides by 10\\x=11.6

Next, we apply Theorem of Intersecting Chords

PV X VQ=SV X VR

4 X x= 2 X y

Recall: x=11.6

2y=4 X 11.6

2y=46.4

y=46.4/2=23.2

Therefore: x=11.6, y=23.2

The correct option is C

4 0
4 years ago
The mathematics faculty at a college consists of 4 ​professors, 10 associate​ professors,8 assistant​ professors, and 10 instruc
Mariana [72]
44 *rounded real answer is 7/16
4 0
4 years ago
4/5(2x+5)−4=1<br> btw 4/5 are fractions
Crazy boy [7]
4/5(2x+5)-4=1
8x/5+20/5=5
8x/5=5-20/5
8x/5=1
8x=5
x=5/8
4 0
3 years ago
Read 2 more answers
Other questions:
  • 85 of seats filled.what percent of seats are empty​
    11·2 answers
  • I NEED HELPPp pleas eplease
    14·1 answer
  • Use the Pythagorean Theorem to find the distance from Anna's house to the tree house. A) 105 B) 141 C) 193 D) 89
    14·1 answer
  • Nayarit wants to swim 50 miles this school year. She plans to swim 1/4 mile each day. How many days will it takes her to swim 50
    10·2 answers
  • Brenda has $43 in the bank. Each month the bank deducts $5 from her account for a service fee. Which equation represents the dol
    7·1 answer
  • 12 is a 100% of what number?
    10·2 answers
  • A circle is cut from a square piece of cloth, as shown:
    13·1 answer
  • I need help because I suck at this
    9·1 answer
  • HELP PLZ
    8·1 answer
  • Factorization 7m2+16my-15y2
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!