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
ICE Princess25 [194]
3 years ago
7

Help :( math for 8th

Mathematics
2 answers:
Andre45 [30]3 years ago
8 0

Answer:

Step-by-step explanation:

x² - 10x - 2 = 0   {Add 2 to both sides}

            +2 = +2

x² - 10x     = 2

Now to find what to add both sides, divide the co-efficient of x by 2

10/2 = 5

Add 5² to both sides

x² - 10x + 25 = 5²

(x - 5)² = 5²

Take square root both sides,

x - 5 = ± 5

x- 5 = 5   ;   x - 5 = -5

  x = 5+5 ;      x = -5 + 5

  x = 10    ;      x = 0

rewona [7]3 years ago
7 0

Answer:

She should add 10x to both sides

Step-by-step explanation:

You might be interested in
If Wendell creates a scale drawing using the scale 1 inch to 10 feet, what will the dimensions of the deck in the scale drawing
jolli1 [7]

Answer:

The dimensions on the scale drawing would be 1 inch by 0.8 inches.

The scale is 1 in: 10 ft; since the actual width of the deck is 10 ft, then it will be 1 inch on the scale.  To find the width:

1/10 = x/8

Cross multiply:

1*8 = 10*x

8 = 10x

Divide both sides by 10:

8/10 = 10x/10

0.8 = x

The width on the scale drawing will be 0.8 inches.

4 0
3 years ago
How do you get 2 square root of 2 from 4​
balandron [24]

Answer:

2 x 2 = 4

Step-by-step explanation:

If you're trying to find the square root of say, 9, it would be 3 x 3 and your trying to find a square root something it's just something multiplied by itself again. such as the square root 1225 is 35 x 35, because 35 x 35 is 1225. Sorry if this is to complicated for you I learnt this in first term and I found it easy to grasp because of the way my math teacher taught it.

Sorry in advance ¯\_(⸟‸⸟)_/¯

8 0
3 years ago
The image represents what geometric construction?
Trava [24]
I believe this is a copy of an angle
4 0
3 years ago
Read 2 more answers
Jennifer will be driving to Las Vegas this weekend. From her home to the hotel she will be staying at is 1,345 miles away. If Je
Zarrin [17]

Answer:

It will take 19.2142857 hours

Step-by-step explanation:

1,345/70

Round to what you're required.

8 0
3 years ago
What is the axis of symmetry of the function f(x)=(x+5)(x-3)
podryga [215]

The axis of symmetry is X= -0.9999995

4 0
3 years ago
Other questions:
  • 5. Select the choice with the greatest number of students.
    6·1 answer
  • What is 30 percent of 60
    8·1 answer
  • One-eleventh of all sales at Joe's Diner are for cash. If cash sales for the week were $380, what were Joe's total sales?
    15·1 answer
  • Which equation best represents this situation? The number 84 increased by an unknown number is equal to 115.
    9·2 answers
  • Bart and Sam played a game in which each player earns or loses points in each turn .A player’s total score after two turns in th
    9·1 answer
  • Quadrilateral ABCD is the result of a reflection of quadrilateral LMNO over the line. Which line segment in the image correspond
    15·2 answers
  • F(x)=X+2<br>g(x) = - 3x + 10<br>​
    9·1 answer
  • A company bought a piece of machinery for $16 200. In the first it depreciated 15%, and in the second year 10%. How much was it
    14·1 answer
  • An employee works 22 days
    10·1 answer
  • different names were put into a hat. A name is chosen times and the name is chosen times. What is the experimental probability o
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!