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
dedylja [7]
3 years ago
15

Jacob attempted the third problem above but when checking his work realized he made a mistake. Identify what Jacob’s mistake was

in your own words, and explain what Jacob would need to do differently to avoid making that mistake in the future:

Mathematics
1 answer:
Sloan [31]3 years ago
5 0

Answer:

When solving, Jacob did not distribute properly.

Explanation:

Let's talk about 5(x + 2). The correct distribution would be 5x + 10. Jacob distributed 5 into x correctly and got 5x, however he did not distribute the 5 into 2 properly. It should have been 10, however it stayed as 2.

Jacob should be more careful when distributing, and make sure to distribute into EVERY term inside the parentheses.

You might be interested in
A set of numbers is shown below:
scZoUnD [109]

The number 4.2 from the set will make the equation x+2=6.2 true.

7 0
3 years ago
Read 2 more answers
Debbie did a survey of how many states the members of her class had visited. The
harkovskaia [24]

Answer:

17

Step-by-step explanation:

4 0
3 years ago
Find the value of Z for the triangles
kolbaska11 [484]

Answer:

z = 17.5

Step-by-step explanation:

segment RX is an angle bisector and divides the opposite side into segments that are proportional to the other 2 sides, that is

\frac{RS}{RT} = \frac{SX}{TX} , substitute values

\frac{15}{z} = \frac{6}{7} ( cross- multiply )

6z = 105 ( divide both sides by 6 )

z = 17.5

4 0
2 years ago
The difference between one-fifth of a number and 4 is -75
Varvara68 [4.7K]
Think of this as (1/5)x - 4 = -75, where x is the number that we are trying to figure out. To figure this out, we want to get x by itself, so we can go:

(1/5)x=-71
x=-71*5
x=-355

So your number is -355
7 0
3 years ago
What is the completely factored form of f(x)=x3+5x2+4x−6?
Gre4nikov [31]
f(x)=x^3+5x^2+4x-6
f(-3)=(-3)^3+5(-3)^2+4(-3)-6=0\implies x+3\text{ is a factor of }f(x)

Synthetic division yields

-3  |  1   5   4   -6
.    |      -3  -6    6
- - - - - - - - - - - - -
.    |  1   2  -2    0

which translates to

\dfrac{x^3+5x^2+4x-6}{x+3}=x^2+2x-2

with remainder 0. Now by the quadratic formula,

x^2+2x-2=0\implies x=\dfrac{-2\pm\sqrt{2^2-4(1)(-2)}}2=-1\pm\sqrt3

and so

f(x)=x^3+5x^2+4x-6=(x+3)(x-(-1+\sqrt3))(x-(-1-\sqrt3))
3 0
3 years ago
Other questions:
  • A square field has an area of 479ft^2 what is the approximate length of a side of the field? Give you answer to the nearest foot
    13·1 answer
  • Name the quadrant in which tanθ and secθ are positive.
    7·1 answer
  • The garden bed has a width of 1.5 meters and an area of 6 square meters . Which Equation and Solution correctly represent x , th
    14·1 answer
  • The square of -4a is
    14·1 answer
  • Find the area of a rectangle that is 4-inches-wide and 15-inches-long.
    10·2 answers
  • Can you guys please help me
    6·1 answer
  • A set of ten systolic blood pressures follows:
    9·1 answer
  • How to find the radius of a circle when only the area is known?
    6·2 answers
  • Write a rule for the linear function in the table.
    7·1 answer
  • Hhhhhhhhhhheeeellllpppppp me
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!