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
expeople1 [14]
3 years ago
7

Describe the error in the work shown below.

Mathematics
2 answers:
ira [324]3 years ago
8 0

Answer:  The product of 6 and 10 is 60, so the expressions are not equivalent. The expression should be 6(3 + 5).

Step-by-step explanation: The GCF of 18 and 30 is 6.

                                             The product of 6 and 5 is 30.

                                             The product of 6 and 10 is 60.

                                             The expressions do not have the same value.

                                             The other factor should be (3 + 5).

hope it helps :) Can u mark me brainliest

diamong [38]3 years ago
3 0

Answer: The product of 6 and 10 is 60,

Step-by-step explanation:  The expressions are not equivalent. The expression should be 6(3 + 5).

You might be interested in
−7x−50≤−1 AND−6x+70>−2
fgiga [73]

Answer:

-7\geq x and [-7,12) in interval notation.

Step-by-step explanation:

We have been given a compound inequality -7x-50\leq -1\text{ and }-6x+70>-2. We are supposed to find the solution of our given inequality.

First of all, we will solve both inequalities separately, then we will combine both solution merging overlapping intervals.

-7x-50\leq -1

-7x-50+50\leq -1+50

-7x\leq 49

Dividing by negative number, flip the inequality sign:

\frac{-7x}{-7}\geq \frac{49}{-7}

x\geq -7

-6x+70>-2

-6x+70-70>-2-70

-6x>-72

Dividing by negative number, flip the inequality sign:

\frac{-6x}{-6}

x

Upon merging both intervals, we will get:

-7\geq x

Therefore, the solution for our given inequality would be -7\geq x and [-7,12) in interval notation.

7 0
3 years ago
Consider polynomial function f(x)=(x-1)^2(x+3)^3 (+1) Use the equation to complete each statement about this function.
Ber [7]

Answer:

I got you my man

Step-by-step explanation:

Blank 1: 2

Blank 2: 3

Blank 3: 1 only

3 0
2 years ago
For each of the following functions, determine if they are injective. Also determine if theyare surjective. Also determine if th
timurjin [86]

Answer:

Check below

Step-by-step explanation:

1. Definition for intervals

(a,b)=\left \{ x\in\Re : a

2. Functions

1) \Re \rightarrow \Re \\ f(x)=x

Let's perform graph tests.

That's an one to one, injective function. Look how any horizontal line touches that only once. Also, It's a surjective and a bijective one.

2)\Re\geq0\rightarrow\Re , f(x)=x+1\\

Injective, surjective and bijective.

Injective: a horizontal line crosses the graph in one point.

3)f:\Re\geq 0\rightarrow\Re, f(x) = cos(x)

The cosine function is not injective, bijective nor surjective.

4)f:\Re\rightarrow\Re \:f(x)=ex

Since e, is euler number it's a constant. It's also injective, surjective and bijective.

5)  Quite unclear format

6) \:f:\Re\rightarrow(0,\infty), f(x) =ex

Despite the Restriction for the CoDomain, the function remains injective, surjective and therefore bijective.

7) f:\Re\geq 0 \rightarrow  \Re\geq0, f(x) =x^{4}

Not injective nor surjective therefore not bijective too.

8).f:\{-1,2,-3\}}\rightarrow \{1,4,9\}, f(x) =x^{2}

f(-1)=1, f(2)=4, f(-3)=9

Injective (one to one), Surjective,  and Bijective.

10) f:\Re\geq 0\rightarrow [-1,1], f(x)= cos(x)\\-1=cos(x) \therefore x=\pi,3\pi,5\pi,etc.

Surjective.

11.f:R\geq 0[-1,1], f(x) = 0\\

Surjective

12.f: US Citizens→Z, f(x) = the SSN of x.

General function

13.f: US Zip Codes→US States, f(x) = The state that x belongs to.

Surjective

7 0
3 years ago
If PS = 2x + 18 and QR = 5x - 9, solve for x.
Alexxx [7]

Answer:

2x+18+5x-9

2x+5x18-9

<u>7</u><u>x</u>+<u>9</u>

7. 7

x= 1.4

hope it helps

4 0
3 years ago
lauramakes a 10.5% commison on each of her sales. how much does she make when she sells a house for 85,000?
loris [4]

Answer:    $8929


Step-by-step explanation:


5 0
3 years ago
Other questions:
  • Part I: Marco rented a small moving van. The moving company charges $40 a day for up to 5 days. The input is the time, in days,
    11·1 answer
  • Which represents the solution set of the inequality 5x-9 less than or equal to 21
    6·1 answer
  • What is 10/4 times 3/4
    12·2 answers
  • What’s multiplies to get 18 but adds to get -15
    10·2 answers
  • If RS=97, solve for x
    13·2 answers
  • Helppp please i need helppppppppoooo
    14·2 answers
  • Which of the following functions is graphed below?
    5·1 answer
  • Please help someone, this is my spring break homework so urgent!!
    6·2 answers
  • Timed please help added picture​
    12·1 answer
  • When you divide with negative exponents, you divide the rational numbers like normal and then you add the exponents.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!