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
Maurinko [17]
3 years ago
11

Simplify 3(3x-1)^2=21

Mathematics
2 answers:
GuDViN [60]3 years ago
5 0
27x^2-3=21
27x^2=24

the answer is 27x^s=24
that is my work up there
scoray [572]3 years ago
4 0
3(3x-1)^2=21 

(3x-1)^2 = 7 

3x-1 = square root of 7 

3x = square root of 7 - 1 

x = (square root of 7 - 1)/3
You might be interested in
What is the slope intercept form of (13x − 5x) + 12 − 2y = 6? SHOW YOUR WORK
vlabodo [156]
Here is the work:
(13x - 5x) + 12 - 2y = 6
(8x) + 12 - 2y = 6
-2y = -8x - 12 + 6
-2y = -8x - 6
y = 4x + 3
3 0
3 years ago
Read 2 more answers
Texas University Quarterback, Michael Daniels, is standing on his own 10-yard line. He throws a pass tword the opposite goal lin
dimulka [17.4K]

Answer: The function is y=-\frac{28}{625}(x-35)^2+30.

Explanation:

It is given that Michael Daniels, is standing on his own 10-yard line. He throws a pass toward the opposite goal line. The football is 2 yards above the ground when the quarterback lets it go.

It follows a parabolic path. Reaching its highest point, 30 yards above the ground. It is caught 50 yards downfield at a point 2 yards above the ground.

So, the initial point is (10,2) and the other point is (60,2).

The height function of a football represents a downward parabola. The maximum point of the function is called vertex. So the vertex is (h,30).

The two point (10,2) and (60,2) have same y-coordinate, therefore the function is maximum at the midpoint of both points.

midpoint=(\frac{10+60}{2}, \frac{2+2}{2})=(35,2)

So, the function is maximum at x=35. Hence the vertex is (35,30)

The standard form of the parabola is,

y=a(x-h)^2+k

Where (h,k) is vertex and a is scale factor.

Since vertex is (35,30).

y=a(x-35)^2+30

The initial point is (10,2).

2=a(10-35)^2+30

-28=625a

a=-\frac{28}{625}

So the function of height is.

y=-\frac{28}{625}(x-35)^2+30

The graph of the function is shown below.

3 0
3 years ago
What is 8x+2y-10 over 2
sertanlavr [38]

Answer:

2

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
5000+e2200000=I need help
valina [46]
Is the e suppose to be in there? Cause if it is then you would probably have to have a number equaling to it to solve for e. If not then here is how you do it. Just add them together. 
2200000
+    5000
-------------
2205000
6 0
3 years ago
Read 2 more answers
PLEASE HALP IM TIMED!!! WILL GIVE 25 PTS
MatroZZZ [7]

So basically, we have [-83, -77] as the whole thing.
There's a circle that limits [-83, -79) as a shaded zone.

Vera claims that -78.9999 \geq X, which is false.
Vera wrote a relation symbol that doesn't represent the ray's direction. She went the other way around.

4 0
2 years ago
Other questions:
  • Help me please!!! you don’t have to explain
    5·2 answers
  • A rectangle is made up of 3 squares, and the perimeter of the whole figure is 88cm. Find the area of the rectangle.
    8·1 answer
  • Two dice are rolled. Determine the probability of the following: rolling a 6 or doubles
    8·1 answer
  • I need help w number 6
    8·2 answers
  • Approximate the real zeros of f(x)= 2x^3 - 4x^2 - 3 to the nearest tenth.
    6·1 answer
  • Pls help me. Pic is attached below
    9·1 answer
  • Match each step with the correct expression to factor s2 + 78 + 6 by using the decomposition method.​
    10·1 answer
  • Find the length of BC please
    15·1 answer
  • A cube with sides 5 inches, and a pyramid with base edges 5 inches. What is the height, so that the volume of the cube and the p
    8·1 answer
  • The cost of a fan is Rs 1,600. If Mrs. Khadka purchased it with 13% VAT, how muc did she pay for it? ​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!