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
satela [25.4K]
3 years ago
9

3x²-2x-21 ..............

Mathematics
1 answer:
Olenka [21]3 years ago
7 0
Download Photomath! Put that in and it gives you the answer and the work to go with it!
You might be interested in
Which of these strategies would eliminate a variable in the system of equations?
melomori [17]
5x -2y = 2 is the answer
8 0
3 years ago
Help I really don’t get this
kvasek [131]

Answer:

Ok so the b is a coefficient which means it needs to be replaced by a number.

The 7 is gonna be multiplied by that coefficient then subtracted by 3.

Hope this helped.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
PLEASE HELP!!!
Black_prince [1.1K]

Answer:

Step-by-step explanation:

substitute and solve:

100 = bh

100 = b(2b)

100 = 2b²

50 = b²

b = √50

b = √(25 * 2)

b = 5√2

solve for h:

h = 2b

h = 2(5√2)

h = 10√2

if you are told to round to 1 DP :

b ≈ 7.1 m

h ≈ 14.1 m

3 0
3 years ago
Read 2 more answers
Plzzz help! Answer quick
-BARSIC- [3]

Answer:

The answer is 6

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Help please I'm stuck show and explain your work
Deffense [45]

The expressions D, E, and F represent a correct solution to the equation.

Step-by-step explanation:

Step 1:

First, we need to solve the given equation and find the value of x which satisfies the equation.

6(x+4)=20, (x+4) = \frac{20}{6}   = 3.333,

x = 3.333 - 4 = -0.666.

So the value of x for the given equation is -0.666.

Step 2:

Now we evaluate the values of the six given options to see which ones have an x value of -0.666.

A. \frac{20-4}{6}= \frac{16}{6}  = 2.666,

B. \frac{1}{6} (20-4)= \frac{1}{6} (16)=\frac{16}{6} = 2.666,

C. 20 -6 -4 = 20 - 10 = 10.

D. \frac{20}{6} -4= 3.333 - 4 = -0.666,

E. \frac{1}{6} (20-24) = \frac{1}{6} (-4)= -0.666,

F. (20-24)\frac{1}{6} = (-4)\frac{1}{6} = -0.666.

So the options D, E, and F represent a correct solution to the given equation.

7 0
4 years ago
Other questions:
  • Draw a net for each of the following shapes:
    7·1 answer
  • If f(x) = 2x-7, what is the equation for f^-1(x)?
    6·1 answer
  • Which function is represented by the graph?
    10·1 answer
  • On a map of the United States, 24 cm represents 18 miles. How many centimeters represent 1 mile?
    15·1 answer
  • I WILL GIVE BRAINLIEST!
    5·1 answer
  • Using the definition of an even function , show that y = - cos x is even
    14·1 answer
  • How do I graph<br><br> y=-1/2x-1
    14·2 answers
  • What is the sum of this sequence 1+3+5+7+...+999
    12·1 answer
  • If a bag contains 12 quarters, 6 dimes and 18 nickels what is the part to whole ratio of nickels to all coins?
    13·2 answers
  • If the base area of a cylinder is 176.625
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!