How do you do 81x^2=49

Answers

Answer 1

Answer: $81x^2=49\ \ \ \ /:81\n\nx^2=(49)/(81)\n\nx=\pm\sqrt(49)/(81)\n\nx=-(7)/(9)\ \vee\ x=(7)/(9)$

Related Questions

A balloon has a circumference of 28 in. Use the circumference to approximate the volume of the balloon to the nearest square inch.Answer choices:3,659 in ^311,488 in ^32,964 in ^3944 in ^3
Two ships leave whittier, Ak at 7 AM. The first ship sails towards Valdez on a 54° course at a constant rate of 36 mi/h. The second ship sails towards Knight island on a 144° course at a constant speed of 42 mi/h. Find the distance between the ships at 11 AM.
Please Help me Check the image below!!!!!
Doors for the small cabinets or 19.5 inches long. Doors for the large cabinets are 3.9 times as long as the doors for the small candidates. How many large doors can be cut from a board that is 11 feet long.
A sprinter on the track team ran the 100 meter dash and redcorded the time for each race. The race times (in seconds) were:12.4 13.1 12.7 12.8 13.0 12.9 13.1 13.5

Blue beads are 5 millimeters long and red beads are 10 millimeters long. How long is the basic bead pattern (brrrr b) in millimeters?

Answers

Answer:

Step-by-step explanation:

blue=5
r⁴=40
B=5
totally of 50milimeters

Answer: 50 millimeters

The vertex of the function y=-3(x - 1)² +2 is?Can Someone please help i need the answer for this

what is the vertex function of
y=-3(x - 1)² +2

Answers

formula: f(x) = a(x – h)2 + k

transformation: 1 unit right 2 units up

vertex: (h,k) -> (1,2) it’s positive because it has to be the opposite

maximum/minimum: maximum

range: (-∞, ∞)
domain: y ≥2

When solving: 1,175 ÷ 5, using partial quotients, how would you decide which power of 10, when multiplied by 5, should be subtracted first?plz help! That would be so great if you did! :)

Answers

It equals 235. Using the quotient 10x 5 would make it 9,765,625 so I would subtract it first

A hawk can travel at a speed of 120 miles per hour.How long would it take a hawk to travel 840 miles without stopping?

Answers

Answer:

The answer is 7

Step-by-step explanation:

Because 840 divided by 120 is 7

A rancher needs to enclose two adjacent rectangular corrals, one for cattle and one for sheep. If the river forms one side of the corrals and 390 yd of fencing is available, find the largest total area that can be enclosed.