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
Marta_Voda [28]
3 years ago
13

Solve the following equation or inequality for the unknown variable. Round answer to two decimal places if necessary.

Mathematics
1 answer:
Sonbull [250]3 years ago
3 0

Answer:

x = 2.7

Step-by-step explanation:

The given equation is :

(3x)^2-10=56

We need to solve it for x.

It can be rewrite as follows:

9x^2-10=56

Adding 10 to both sides,

9x^2-10+10=56+10\\\\9x^2=66\\\\x=\sqrt{\dfrac{66}{9}}\\\\x=2.70

So, the value of x is equal to 2.7.

You might be interested in
Given the congruent figures solve for the missing variable
Ray Of Light [21]
 I don't see the question...is that my problem?  Or am I not doing things right?
5 0
3 years ago
144kg in the ratio 1:3:5​
bonufazy [111]
Total ratio is 1 + 3 + 5 = 9

Share for 1 = 1/9 × 144
= 16kg
Share for 3= 3/9 × 144
= 48kg
Share for 5= 5/9 × 144
= 80kg

Proof= 80 + 48 + 16 =144
4 0
3 years ago
Suppose f(x, y) is a differentiable function of x and y and let g(r, s) = f (2rs, 8s − 2r). Use
worty [1.4K]

By the chain rule,

\dfrac{\partial g}{\partial r} = \dfrac{\partial f}{\partial r} \\\\ ~~~~~ = \dfrac{\partial f}{\partial x} \dfrac{\partial x}{\partial r} + \dfrac{\partial f}{\partial y} \dfrac{\partial y}{\partial r} \\\\ ~~~~~ = 2 s \dfrac{\partial f}{\partial x} - 2 \dfrac{\partial f}{\partial y}

where x(r,s)=2rs and y(r,s)=8s-2r.

If r=2 and s=1, then

x = 2\cdot2\cdot1 = 4

y=8\cdot1-2\cdot2 = 4

so that

g_r(2,1) = 2\cdot1 f_x(4,4) - 2 f_y(4,4) = 2\cdot2-2\cdot3 = \boxed{-2}

5 0
1 year ago
What is the area of the circle below?<br> 10 ft
azamat

Answer:

<h3>Circle</h3>

Solve for area

A=π r^2

r =Radius

<h2>You about this first: </h2>

The circumference of a circle is its perimeter or distance around it. It is denoted by C in math formulas and has units of distance, such as millimeters (mm), centimeters (cm), meters (m), or inches (in). It is related to the radius, diameter, and pi using the following equations: C = πd. C = 2πr.

Step-by-step explanation:

Hope it is helpful....

8 0
3 years ago
5 m<br>3 m<br>6m<br>8m<br>what is the S.A.?​
Sergio [31]

Answer:

6m

Step-by-step explanation:

i am not sure

8 0
3 years ago
Other questions:
  • If a straight line passes through the point x = 14 and y = 3 and also through the point x = 4 and y = 10, the slope of this line
    15·1 answer
  • Lexi jarred 12 liters of jam after 4 days. How many days did Lexi spend making jam if she jarred 15 liters of jam? Assume the re
    15·1 answer
  • What multiplies to get -210 and adds up to 11
    9·1 answer
  • A parabola had a vertex of (-5,0) and passes through the point (-3,1)
    11·1 answer
  • Stephen deposited $1800 into a savings account for which interest is compounded weekly at a rate of 3.2%. How much interest will
    8·1 answer
  • PLEASE HELP Trig Idenities
    15·1 answer
  • I NEED HELP QUICK with this math problem
    11·2 answers
  • 4. What is the value of -24 + 6?
    15·2 answers
  • Ten out of 40 students made an A on their English test. Mr. Harris wants the same proportion of students to gen an A on his hist
    8·1 answer
  • What is the answer to this?<br> x + 8 &gt;= 14
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!