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
Ainat [17]
3 years ago
8

The function f is defined by f(x)=7x - 5. Use this formula to find the following

Mathematics
2 answers:
Semenov [28]3 years ago
7 0
-103 is the answer to the question
Illusion [34]3 years ago
6 0
F(x)=7x-5
x=-14
7(-14)-5
-98-5
final answer is -103
You might be interested in
At maximum speed, an airplane tracked 1720 miles against the wind in 5 hours. Flying with the wind, the plane can travel the sam
nataly862011 [7]
Recall your d = rt, distance = rate * time.

as the plane goes against the wind, the plane is not really flying at "x" mph, but is really going slower, at " x - y ", because the wind is subtracting speed from it.

likewise, when the plane is going with the wind, is not really going at "x" mph, but at " x + y ", is going faster due to the wind, thus

\bf \begin{array}{lccclll}
&\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{time}\\
&------&------&------\\
\textit{against the wind}&1720&x-y&5\\
\textit{with the wind}&1720&x+y&4
\end{array}
\\\\\\
\begin{cases}
1720=(x-y)5\implies \frac{1720}{5}=x-y\\\\
344=x-y\implies \boxed{y}=x-344\\
---------------\\
1720=(x+y)4\implies \frac{1720}{4}=x+y\\\\
430=x+y\implies 430=x+\left( \boxed{x-344} \right)
\end{cases}
\\\\\\
430=2x-344\implies 774=2x\implies \cfrac{774}{2}=x\implies 387=x
6 0
3 years ago
An anthropologist studies a woman's femur that was uncovered in Madagascar. To estimate the woman's height, he uses the equation
Lelu [443]

Answer:

The inequality f>40 represents the length of the femur for which the woman had a height greater than 160cm.

Step-by-step explanation:

The given equation is

h=60+2.5f

Where, h is woman's height in centimeters and f is length of the femur in centimeters.

If woman's height is greater than 160cm, then

h>160

60+2.5f>160

Substract 60 from both sides.

2.5f>100

Divide both sides by 2.5.

f>40

Therefore the inequality  f>40 represents the lengths of the femur for which the woman had a height greater than 160cm.

5 0
3 years ago
I need help with this question ASAP.
myrzilka [38]

Answer:

a gas in a rigid container has a pressure of 632 torrs and a temperature of 45 celsius. The pressure has increased to 842 torrs. What is the new temperature of the gas

3 0
3 years ago
Maria used one bag of flour. She baked
AveGali [126]

Answer:

Answer is 11.

Step-by-step explanation:

Maria used two loaves of bread , One loaf is equal=2 1/4 cups so two becomes 2 ×2 1/4= 9/2

Maria makes the remaing 48 muffins of the flour left so,

One muffin is equal 3 1/4 cups so two becomes 2×3 1/4=13/2

Add both of them

9/2+13/2=11

5 0
3 years ago
the chorus has 35 members. which expression represents the number of ways a group of 6 members can be chosen to do a special per
zimovet [89]
You have to choose 6 members from the group of 35 people. So there are \binom{35}{6} ways to do it.
3 0
3 years ago
Read 2 more answers
Other questions:
  • True or false? In a two-column proof, the right column contains a series of deductions.
    6·2 answers
  • Trigonometry<br> Special Right Triangles <br> Find the exact value of tan 0* + cos 90* - sin 0*.
    11·1 answer
  • Which box-and-whisker plot matches the data?<br><br> 28,29,29,31,34,39,41,46,47,49,52,54
    10·1 answer
  • Is 8.9 ml greater or less than 0.89 l
    13·2 answers
  • Sean has some candy bars that he wants to give away he's going to give each person 1/8 of a bar, he has 2 3/4 bars to give away.
    10·2 answers
  • 5 qt = ? gal????????​
    7·2 answers
  • Please help..
    13·1 answer
  • Which line is being represented by the graph?
    14·1 answer
  • What is the median of the 19 numbersplotted in the line plot below?
    11·1 answer
  • What number should be divided by 32 to get?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!