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
xeze [42]
2 years ago
14

What are the solutions to this equation? 16x2 + 9 = 25

Mathematics
2 answers:
Wewaii [24]2 years ago
5 0

Answer: x=-1,1

Step-by-step explanation:

16x^2+9=25 first we subtract 9 from the right and left sides.

16x^2=16

Divide both sides by 16 to isolate x

x^2=1

Take the square roots of both sides to isolate x completely.

x=1,-1

mash [69]2 years ago
3 0

Answer:

Step-by-step explanation:

Solution

= −1

= 1

You might be interested in
How many significant numbers are in 1,076
Anton [14]
There are 4 significant figures as the zero is placed between significant numbers.
8 0
2 years ago
What is an equation of the line that passes through the point (2, 4 and is perpendicular to the line whose equation is 3y = 6x 3
Maru [420]
Perpendicular line always have slopes that are negative reciprocals of one another.  Mathematically,

m1*m2=-1

So to be perpendicular to the line given, let's rearrange it to the point slope form of a line...

3y=6x ?3 (not sure what you wanted to type there)

anyway isolating y by dividing both side by three will leave 2x where 2 is the slope.

So for the other line to be perpendicular, m*2=-1, m=-1/2, now we have:

y=-x/2 +b, we can now you the point given to solve for b

4=-2/2 +b

4=-1+b

b=5 so

y=-x/2 +5 or more neatly

y=(10-x)/2
3 0
3 years ago
-How to simplify y^3Z^5/Y^2Z^3?
Romashka [77]

Answer:

=yz8

Step-by-step explanation:

I HOPE THIS HELPS ^^!!

8 0
2 years ago
Factor the polynomial completely. 4x3 – 12x2 7x – 21 4x2(x – 3) 7(x – 3) Which is the completely factored polynomial? 4x2(x 4) 3
bixtya [17]

Answer:

  (d)  (4x² +7)(x -3)

Step-by-step explanation:

This polynomial can be factored by factoring pairs of terms.

  = (4x³ -12x²) +(7x -21)

  = 4x²(x -3) +7(x -3)

  = (4x² +7)(x -3)

__

<em>Additional comment</em>

The answer choices suggest we're not interested in irrational or complex factors. The quadratic (4x² +7) could be factored into linear terms involving irrational complex numbers. The form for "difference of squares" would be used for the purpose.

7 0
2 years ago
a zoo charges an admission price of $85 for the first 12 members of a group and $6 for each additional member of the group. What
elena-14-01-66 [18.8K]

The largest group that can go to the zoo is 23 members

Step-by-step explanation:

The given is:

  • A zoo charges an admission price of $85 for the first 12 members of a group and $6 for each additional member of the group
  • We need to find the largest group that can go to the zoo and spend less than $155 on admission

Assume that the number of members in the group is x

∵ There are x members in the group

∵ The zoo charges an admission price of $85 for the first 12

   members of a group and $6 for each additional member

   of the group

- Take 12 members from x and multiply the rest members by

   6 and then add 85 to the product

∴ The group will spend = 6(x - 12) + 85

∵ The group wants to spend less than 155 to go to the zoo

- use the symbol < between the expression above and 155

∴ 6(x - 12) + 85 < 155

- Simplify the left hand side

∴ 6x - 72 + 85 < 155

- Add like terms in the left hand side

∴ 6x + 13 < 155

- Subtract 13 from both sides

∴ 6x < 142

- Divide both sides by 6

∴ x < 23.67

- Take the largest integer less than 23.67

∵ 23 is the largest integer less than 23.67

∴ The group has 23 members

The largest group that can go to the zoo is 23 members

Learn more:

You can learn more about the inequalities in brainly.com/question/1465430

#LearnwithBrainly

6 0
3 years ago
Other questions:
  • Which angle is the included angle for DE and FE ?<br> D<br> E<br> F
    6·2 answers
  • (Geometry A) Review Of Reasoning And Proof Quiz
    15·2 answers
  • Write the number eighteeb in another way
    8·2 answers
  • After receiving a discount of 7.5% on its bulk order of notebooks, John's Office Supply pays $7400. What was the price of the or
    13·1 answer
  • Kim rented a bike from Kayla's Bikes. It cost $20 plus $8 per hour. If Kim paid $52, then she rented the bike for how many hours
    15·2 answers
  • Solve for x. <br> please help.
    13·1 answer
  • The WSJ lists a bond as Acme 9s13 and the price as 89.875. If your required rate of return is 10%, would you buy one of these bo
    14·1 answer
  • How will you remember what changes when reflecting across the x-axis?
    12·1 answer
  • Quick question: is this the way you do this?
    6·1 answer
  • In October, the amount of snowfall was 1/4 feet. in December, the snowfall was 4 1/2 feet. What was the amount of snowfall in th
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!