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
vodka [1.7K]
3 years ago
10

Please help I might fail!!

Mathematics
2 answers:
arsen [322]3 years ago
8 0
I think it’s the last one
IgorC [24]3 years ago
4 0
I think it’s the second one
You might be interested in
What other properties do we use to rewrite expressions and equations​
slavikrds [6]

Answer:

The commutative, associative, and distributive properties help you rewrite a complicated algebraic expression into one that is easier to deal with. When you rewrite an expression by a commutative property, you change the order of the numbers being added or multiplied.

Step-by-step explanation:

4 0
3 years ago
Graph the following inequality. y ≤ 3x +5 Use the graphing tool to graph the inequality Click to enlarge graph​
sweet-ann [11.9K]

Please see the graph below

3 0
2 years ago
Two employees are painting a boat. One uses ¾ gallon of paint each hour, one uses 1 ⅔ gallon of paint every 2 hours. How much pa
Ad libitum [116K]
<h2>Hello!</h2>

The answer is:

First employee: 3 gallons

Second employee: 3 1/3 gallons

Total: 3+3\frac{1}{3}=3+\frac{10}{3}=\frac{19}{3}

<h2>Why?</h2>

From the statement we know:

First employee uses 3/4 gallon each our, for 4 hours the will use:

\frac{3}{4}*4=\frac{12}{4}=3 gallons

Second employee uses 1 2/3 (5/3) gallon every 2 hours, meaning 5/6 gallon each hour.

\frac{5}{6}*4=\frac{20}{6}=\frac{10}{3}=3\frac{1}{3}gallons

Remember, to sum (algebraic sum) fractions we should follow the next steps:

First: Multiply both fractions denominators by each other in order to get the denominator of the new fraction.

Second: Multiply the numerator of the first fraction by the denominator of the second fraction.

Third: Multiply the denominator of the first fraction by the denominator of the second fraction.

Fourth: Sum (algebraic sum) each result and divide it into the number obtained from the first step (denominator of the new fraction).

Example:

3+\frac{1}{3} =\frac{(3*3)+(1*1)}{3*1}=\frac{9+1}{3}=\frac{10}{3}

Have a nice day!

5 0
3 years ago
Dada a função f(x) = ax + b e sabendo-se que f(3) = 5 e f(-2) = -5 calcule f(½)
d1i1m1o1n [39]

Answer:

f(1/2)=0

Step-by-step explanation:

Given this function:

f(x)=ax+b

We need to find the value of:

f(1/2)

This is really simple because the problem give us the following data:

f(3)=5\\\\and\\\\f(-2)=-5

Using this data we can write a 2x2 system of equations like this:

Let:

f(3)=5=a(3)+b\\\\\rightarrow3a+b=5\hspace{10}(1)

and

f(-2)=5=a(-2)+b\\\\\rightarrow-2a+b=-5\hspace{10}(2)

Our system will be:

3a+b=5\hspace{28}(1)\\-2a+b=-5\hspace{10}(2)

We can solve this system using different methods, however I will use elimination method because I believe it is really simple. So:

(1)-(2)\\\\5-(-5)=3a-(-2a)+b-b\\\\10=5a\\\\Solving\hspace{3}for\hspace{3}a\\\\a=\frac{10}{5} =2

Replacing a into (1)

3(2)+b=5\\\\6+b=5\\\\Solving\hspace{3}for\hspace{3}b\\\\b=5-6=-1

Now we found the values of a and b, our function is given by:

f(x)=2x-1

Let's verify it:

f(3)=2(3)-1=6-1=5

f(-2)=2(-2)-1=-4-1=-5

As you can see the function satisfies the data provided by the problem. So we can conclude that it is correct.

Finally, let's find f(x) for x=1/2 :

f(1/2)=2(\frac{1}{2} )-1=\frac{2}{2} -1=1-1=0

Hence:

f(1/2)=0

3 0
4 years ago
Pls help i beg i will give brainlist and points
leonid [27]

Answer:

7. 1/10 or 10%

9.5/10

11.5/10

13.9/10

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • The value of x 3y , for x = -2 and y = 3, is -24. TrueFalse
    5·2 answers
  • What is the slope help
    8·1 answer
  • What is the missing length of this rectangle?
    5·1 answer
  • To make lemonade, Andy adds
    11·1 answer
  • The law of cosines is used to find the measure of Z.
    14·2 answers
  • Find the length of RS.<br> A. 40 units<br> B. 8 units<br> C. About 6.3 units<br> D. About 2.8 units
    10·1 answer
  • How do we figure out the value of a variable?
    8·1 answer
  • karen drove 3/4 of a mile in 1/60 of an hour .At this rate,how many miles would she drive in one hour
    13·1 answer
  • What is 121 divided by 18?
    14·2 answers
  • A student says the first step of the proof is "Reflect △ABC in AB←→ to create △ABC′." Which of the following statements logicall
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!