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
Travka [436]
4 years ago
14

Please help my grade is really low in this class

Mathematics
2 answers:
MakcuM [25]4 years ago
8 0

Answer:

A

Step-by-step explanation:

the first thing you should do while completing the square should be moving your 'c' value to the other side of the equation!

do so by subtracting 8 on both sides,

your new equation should now look like x^2 -6x = -8

that is the first step of completing the square!

i hope this helps!!

you can totally bring your grade in math up!!

i believe in you!

stay safe!

:)

Yuri [45]4 years ago
7 0

Answer:

A

Step-by-step explanation:

When completing the square, the first thing you want to do is get all of the numbers on one side, and all the x terms on the other.

You might be interested in
Tan(2 sin^-1 0.4)<br> Find the Exact value
stiv31 [10]

Answer:

tan(2u)=[4sqrt(21)]/[17]

Step-by-step explanation:

Let u=arcsin(0.4)

tan(2u)=sin(2u)/cos(2u)

tan(2u)=[2sin(u)cos(u)]/[cos^2(u)-sin^2(u)]

If u=arcsin(0.4), then sin(u)=0.4

By the Pythagorean Identity, cos^2(u)+sin^2(u)=1, we have cos^2(u)=1-sin^2(u)=1-(0.4)^2=1-0.16=0.84.

This also implies cos(u)=sqrt(0.84) since cosine is positive.

Plug in values:

tan(2u)=[2(0.4)(sqrt(0.84)]/[0.84-0.16]

tan(2u)=[2(0.4)(sqrt(0.84)]/[0.68]

tan(2u)=[(0.4)(sqrt(0.84)]/[0.34]

tan(2u)=[(40)(sqrt(0.84)]/[34]

tan(2u)=[(20)(sqrt(0.84)]/[17]

Note:

0.84=0.04(21)

So the principal square root of 0.04 is 0.2

Sqrt(0.84)=0.2sqrt(21).

tan(2u)=[(20)(0.2)(sqrt(21)]/[17]

tan(2u)=[(20)(2)sqrt(21)]/[170]

tan(2u)=[(2)(2)sqrt(21)]/[17]

tan(2u)=[4sqrt(21)]/[17]

7 0
3 years ago
An internet search engine looks for a keyword in 9 databases, searching them in a random
atroni [7]
Here you go! I hope I can get brainliest!

8 0
3 years ago
Write a mathematical expression for the phrase 8 divided by x added to the absolute value of 5y
gizmo_the_mogwai [7]

Answer:

|5y|+8/x

Step-by-step explanation:

The mathematical expression is |5y|+8/x

3 0
3 years ago
CAN I GET SOME HELP PLEASE?????<br>Brainliest??
Scrat [10]

Answer:

The answer is A

Step-by-step explanation:

Traingle ABC is congruent to traingle EFD by hl rule

6 0
3 years ago
How to you do this problem? ​
professor190 [17]

Answer:

Step-by-step explanation:

it is adding or subtrating

5 0
4 years ago
Other questions:
  • A rectangle and a triangle have equal areas. The length and width of the rectangle are 24 cm and 8 cm respectively. If the base
    15·1 answer
  • The rule (x,y)→(2x,2y) maps △DEF to △D′E′F′.
    6·2 answers
  • Does a rhombos have 4 congruent angles
    9·1 answer
  • A shirt is priced at $12. What is the price after a 5% discount and 6% sales tax?
    12·2 answers
  • How do I find the diameter and circumference when given the area?
    6·1 answer
  • Larry has 9 gallons of paint. He uses 10 quarts to paint his kitchen and 3 gallons to paint his living room. How many pints of p
    9·2 answers
  • The square of a negative number increased by 6 times the number is 72. Find the number.
    13·1 answer
  • *** SOMEBODY HELP ME**
    12·1 answer
  • Which of the numbers below is less than −72? Select all that apply.
    12·1 answer
  • Noel paid $204 for 8 tickets to a soccer game. Each ticket cost the same amount.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!