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
WINSTONCH [101]
3 years ago
11

solve the following equation by transforming it into a perfect square trinomial. 3x^2 +18x=21. DESPERATE HELP!!! A.(-7,1) B.(-19

,13) C.(-25,7) D.(-13,-5). Will Mark Branliest!!
Mathematics
2 answers:
In-s [12.5K]3 years ago
8 0
Correct answer choice is
<span>A.(-7,1)</span>
madam [21]3 years ago
8 0
The correct answer for this problem is A.
You might be interested in
A music store marks up the instruments it sells by 30%
Nat2105 [25]

Answer:

A. $58.50, B. $80

Step-by-step explanation:

mark up percentage \frac{store price - actual price}{actual price} x 100

30 x 45 = 100SP - 4500

5850 = 100SP

Store Price > therefore, $ 58.50

A. $58.50

<em>Actual Price :</em>

130 AP = 10400 - 100AP

AP > $80

B. $80

3 0
3 years ago
Give me the answer and the steps
STatiana [176]
20%=
200/100 x RM6000
=RM1200

Last year amount= RM6000- RM1200
=RM4800

Total savings in two years=
RM6000 + RM4800
=RM10800
4 0
3 years ago
Read 2 more answers
The diagonal of a square is 60 in, as shown
andre [41]

Answer:

The length of side is 42.4 inches.

Step-by-step explanation:

Given that:

Diagonal of square = 60 inches

As all sides of a square are equal, thus

Side of square = x

The diagonal will be the hypotenuse of a right angled triangle.

Using Pythagorean theorem;

x^2+x^2=(60)^2\\2x^2=3600\\x^2=\frac{3600}{2}\\x^2=1800

Taking square root on both sides

\sqrt{x^2}=\sqrt{1800}\\x=42.4

Hence,

The length of side is 42.4 inches.

5 0
3 years ago
Hi Hi Hi HELP HELP HELP!!! ⚠️⚠️⚠️⚠️⚠️
Oliga [24]

Answer:

part c im not 100% percent sure sorry if im wrong

Step-by-step explanation:

have a blessed day :)

5 0
2 years ago
Read 2 more answers
What is the sum of all of the four-digit positive integers that can be written with the digits 1, 2, 3 and 4 if each digit must
wel

Answer with explanation:

Number of four digit numbers using four distinct digit

         =Unit placed can be filled in four ways * Tens place can be filled in Three ways * Hundreds place can be filled in 2 ways * Thousand Place can be filled in a single way

=4*3*2*1

=24 distinct numbers

Sum of all four , four digits numbers using 1,2,3,4

          = (If we keep 4 at unit place +Keeping 3 at unit place +Keeping 2 at unit place+Keeping 1 at unit place)×6+At tens place (2*2+3*2+1*2+4*2+2*2+1*2+1*2+3*2+4*2+2*2+3*2+4*2)+At hundred's place (2*2+3*2+1*2+4*2+2*2+1*2+1*2+3*2+4*2+2*2+3*2+4*2)+At thousand's Place(2*2+3*2+1*2+4*2+2*2+1*2+1*2+3*2+4*2+2*2+3*2+4*2)

=(24+18+12+6)Unit place+(60)Ten's place +(60)Hundred's place+(60)Thousand's Place

=66660

7 0
3 years ago
Other questions:
  • What is y^4-36 in simplest factored form?
    7·1 answer
  • 1. If f(x)=10- xạ, then which of the following is the value of f (-2)?
    7·1 answer
  • There are 52 cards in a deck, and 13 of them are hearts. Consider the following two scenarios:
    7·1 answer
  • The ratio of collectible cards Kyle owns to cards that Zeona owns is 3:2. Zeona has 36 cards. How will the ratio of Kyle’s cards
    12·1 answer
  • X- 14x + 40
    8·2 answers
  • Use the information given to enter an equation in standard form.
    8·1 answer
  • 1 2 4 and 5 please hurry
    13·1 answer
  • Scooby doo here's the other question <br>please answer it :(​
    15·2 answers
  • Rewrite the following equation in slope-intercept form.
    6·1 answer
  • 1.Noah has a coupon for 30% off at his favorite clothing store. He uses it to buy a hoodie and a part of jeans.If the regular pr
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!