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
Sloan [31]
2 years ago
15

I don't understand how to solve this

Mathematics
1 answer:
Trava [24]2 years ago
8 0
X^2+81=4x^2
3x^2=81
x^2=27
x=(27)^0.5
You might be interested in
A store is having a sale on liquid soap and sponges. The cost of 6 bottles of soap is $9.12. The cost of 4 sponges is $5.00 what
Alenkinab [10]

Answer:

$6.79

Step-by-step explanation:

We need to find the cost of a bottle of soap.  We divide the cost by the number of bottles

$9.12/6 = $1.52 per bottle

We also need to find the cost for a sponge

$5.00/4 = $1.25 per sponge

We want to find the total cost of 2 bottles of soap and 3 sponges

cost = 2 * 1.52 + 3 * 1.25

       = 3.04 + 3.75

     = 6.79

7 0
3 years ago
Find the coordinates of the image of a triangle with vertices A(0, – 3), B(3, 0), and
lora16 [44]

Answer:

A'(-3,0), B'(0,-3) and C'(4,7)

Step-by-step explanation:

We are given that the vertices of triangle are A(0,-3), B(3,0) and C(-7,4).

We have to find the coordinates of the image of triangle under a rotation of 90° clockwise about the origin.

90° clockwise about the origin

Rule:(x,y)\rightarrow (y,-x)

Using the rule

The coordinates of A'

A(0,-3)\rightarrow A'(-3,0)

The coordinates of B'

B(3,0)\rightarrow B'(0,-3)

The coordinates of C'

C(-7,4)\rightarrow C'(4,7)

Hence, the vertices of image of triangle is given by

A'(-3,0), B'(0,-3) and C'(4,7)

8 0
2 years ago
-5/4 divided by 2 3/4
MArishka [77]
-5/11 is what I got with a fraction calculator.
6 0
3 years ago
3<br> Solve for x.<br> 9(x + 1) = 25 + x<br> Ο x=2<br> x=3<br> 0 x=4<br> 0 0 0 0<br> Ο<br> 0 x=5
muminat

Answer:

x= 2

Step-by-step explanation:

so expand the left side of the equation

9x+9= 25+x

and then group like terms( subtract 9 from both sides and also do same with x.

9x-x= 25-9

8x= 16

divide by 8 on both sides.

x=2

7 0
1 year ago
Pls help I will give brainlest 22, 18, 14, 10, ...
natima [27]
I just did this my bad bro
4 0
2 years ago
Other questions:
  • A music festival sold two types of tickets, day passes and weekend passes. The day passes were $57, and the weekend pass was $97
    11·1 answer
  • How do you convert feet to inches
    9·1 answer
  • Aman and Prakash coloured an entire Harry Potter Colouring Book together. The book had 75 pages. Aman coloured 60% of the pages.
    9·2 answers
  • I don’t understand this can someone please please help!!!!!!!!!!
    7·1 answer
  • What is 5% of 15?????????? ​
    7·2 answers
  • Find the distance between the points (-4, -5 and (3, -1.
    13·2 answers
  • Find the missing side of the triangle.
    14·1 answer
  • You need to write two lines in y=mx+b form
    14·1 answer
  • A spinner has many equal sections of different colors. The probability that the spinner will not land on a
    13·2 answers
  • Show that the following rectangular form x^2+y^2=2xy can be expressed as 1 = sin(2) in polar form.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!