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
olasank [31]
2 years ago
7

Evaluate the expression 3.14(a2 + ab) when a = 4 and b = 3. (Input decimals only, such as 12.71, as the answer.)

Mathematics
1 answer:
Natasha2012 [34]2 years ago
5 0

Answer:

87.92

Step-by-step explanation:

3.14(a² + ab)  where  a = 4  and  b = 3

Plug the given numbers into the appropriate values.  Remember to follow PEMDAS.

3.14((4)² + (4)(3))

3.14(16 + 12)

3.14(28)

87.92

You might be interested in
Hello there can anyone solve this plz (chart is attached):
stich3 [128]

Answer:

h^\prime(1)=14

Step-by-step explanation:

We have the function:

h(x)=f[f(x)]

And we want to find:

h^\prime(1)

So, we will differentiate function <em>h</em>. By the chain rule, this yields:

h^\prime(x)=f^\prime[f(x)]\cdot f^\prime(x)

Then it follows that:

h^\prime(1)=f^\prime[f(1)]\cdot f^\prime(1)

Using the table, we acquire:

h^\prime(1)=f^\prime(3)\cdot2

And using the table again, we acquire:

h^\prime(1)=7\cdot 2

Evaluate. Hence:

h^\prime(1)=14

6 0
3 years ago
Which of the following most likely causes the rate of a chemical reaction to increase? (5 points)
Alika [10]

Answer: D) Adding heat to the reaction

6 0
3 years ago
What variable do we use for slope? A.x B.y C.m D.b
Nady [450]

Answer:

y we use y

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Identify the correct units to express the following idea.
hammer [34]

The units that we should use are gallons per day, we get:

r = 2.4\frac{gallons}{day}

<h3>Which units should we use?</h3>

We want to express the fact that every day you use 2.4 gallons of gasoline.

So we have two types of units in the above sentence, time (in days), and volume (of the gasoline consumed).

Then we conclude that the units that we should use is volume over time, particularly, gallons per day.

So we can represent that measure as:

r = 2.4\frac{gallons}{day}

If you want to learn more about units:

brainly.com/question/1972490

#SPJ1

8 0
2 years ago
Use the fact that the length of an arc intercepted by an angle is proportional to the radius to find the arc length given the ci
aivan3 [116]
The answer is definetly b 5 pi 4 cm
6 0
3 years ago
Read 2 more answers
Other questions:
  • Last One ----&gt;
    10·1 answer
  • A sample from a group of people will not always be representative of the entire group.
    14·2 answers
  • Find the Precision for each measurement. <br> 40 feet? 12cm? 9 1/2in.?
    14·1 answer
  • A ceramic artist can shape a pot in 3 minutes. It takes 10 minutes to fire one batch of pots in the kiln. If there are p pots in
    12·1 answer
  • #16 What are the coordinates of S?
    10·1 answer
  • Write the equation of a circle that has a center of (-8, 0)<br> and a diameter of 8.
    15·1 answer
  • Which phrase represents 3y +9
    13·1 answer
  • Substitution Property of Equality:<br> If AB = 20, then AB + CD
    11·1 answer
  • a city has 12575 residents a number president grown by 1.6% every year to the nearest whole resident what will the city populati
    14·1 answer
  • Find the coordinates of the midpoint of a segment with the endpoints (7,−5) and (3,3).
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!