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
liq [111]
2 years ago
12

Helllp pls help and don’t comment if u don’t know

Mathematics
2 answers:
k0ka [10]2 years ago
7 0

For the first one Answer:7z^3 −2z+1+2z^2

Step-by-step explanation:

(7z ^3

+ 4z −1)+(2z^2

− 6z +2)

Combine 4z and −6z to get −2z.

7z3  − 2z −1 + 2z2  +2

Add −1 and 2 to get 1.

7z3  − 2z + 1 + 2z2

inna [77]2 years ago
4 0

Answer:

a) 7z³+2z²-2z+1

b)2x²+3x-8

Step-by-step explanation:

a) (7z³+4z-1)+(2z²-6z+2)

   7z³+2z²-2z+1

b) (5x²-2x-1)-(3x²-5x+7)

   5x²-2x-1-3x²+5x-7

   2x²+3x-8

You might be interested in
Look at the equations below. Identify which equation has infinitely many solutions A. 21 + 2.5w = 6 +5.7w - 3.2w + 15 B. 9k +1 =
Volgvan

The equation that has infinitely many solutions in the options is 21 + 2.5w = 6 +5.7w - 3.2w + 15

<h3 /><h3 /><h3>What is an equation with an Infinitely many solution:</h3>

An equation with infinitely many solutions essentially have same thing on both sides.

Generally, a linear equation has infinitely many solution when the equations are equivalent. Let take for example:

  • 2y + 2= y + y + 2

The equation above have infinitely many solution because there is no actual value of y.

Therefore,

2y + 2 = 2y + 2

2 = 2

We can see both sides are equal to each other. So, this is an infinitely many solution.

Therefore, 21 + 2.5w = 6 +5.7w - 3.2w + 15 has an infinitely many solution.

  • 21 + 2.5w = 6 +5.7w - 3.2w + 15
  • 21 + 2.5w  = 6 + 15 + 5.7w - 3.2w
  • 21 + 2.5w = 21 + 2.5w
  • 21 = 21
  • 0 = 0

learn more infinite solution: brainly.com/question/21499734?referrer=searchResults

3 0
2 years ago
PLEASE ANSWER!
mixer [17]

Answer:

i am pretty sure it is b

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The area of the triangle below is 8.91 square inches. What is the length of the base?
Nina [5.8K]
I think the answer is 19.602 hope this helps!
6 0
3 years ago
Which is 1/2 of 3 1/2 tablespoons diced peppers?
max2010maxim [7]
1 3/4

half of three is 1 1/2 and half of one half is one fourth, add them and the sun is 1 3/4
4 0
3 years ago
Write the point slope form of the equation of the line that passes through the point (-1,5) and has a slope of -1
saveliy_v [14]

Answer:

  y -5 = -(x +1)

Step-by-step explanation:

The point-slope form of the equation of a line with slope m through point (h, k) is ...

  y -k = m(x -h)

For your given values of m=-1 and (h, k) = (-1, 5), the equation becomes ...

  y -5 = -(x +1)

8 0
3 years ago
Other questions:
  • On babylonian tablet ybc 4652, a problem is given that translates to this equation: x (x/7) (1/11) (x (x/7)) = 60 what is the so
    13·2 answers
  • What is all of the surface area and volume of this Castle? Find the surface area and volume of all the figures below, then out o
    12·1 answer
  • 141.999 to the nearest tenths ,hundredth, and one
    11·1 answer
  • Kenny had a total of 140 minutes to read, do homework, and play video games. he spent x minutes reading. he spent 2(x + 5) minut
    11·1 answer
  • Simplify the expression
    5·2 answers
  • What is x?<br> -5 (x - 1) = 40
    14·2 answers
  • A spherical ball has a radius of 4 inches. What is the volume of this sphere, to the
    8·1 answer
  • Help me plz people never help me
    7·2 answers
  • Jeanne babysits for $6 per hour. She also works as a reading tutor for $10 per hour. She is only allowed to work 20 hours per we
    8·2 answers
  • What's the square root of 2​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!