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kozerog [31]
3 years ago
13

Evaluate the expression 3.14(a2 (a squared) + ab) when a = 4 and b = 2. (Input decimals only, such as 12.71, as the answer.)

Mathematics
1 answer:
dedylja [7]3 years ago
7 0
First, start out by inserting the numbers: 

3.14(4(2) (4^2) + 4(2) 

Next, multiply the given numbers: 

3.14(8 (4^2) + 8) 

Then, multiply 4^2 (since the exponent is 2, multiply 4 two times: 4 * 4): 

3.14(8 (16) + 8) 

Now, multiply the first 8 to 16: 

3.14(128 + 8) 

Use the distributive property to solve this next one: 

401.92 + 25.12 

Finally, add up you two decimals: 

427.04 
You should get 427.04 (I could be wrong though). 
Hopefully that helped! :) 
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18/s=3 what’s the value of s
Lilit [14]

Answer:

s=6

Step-by-step explanation:

18/s = 3

Multiply each side by s

18/s *s = 3*s

18 =3s

Divide each side by 3

18/3 =3s/3

6 =s

5 0
4 years ago
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Is he correct and show work please
mario62 [17]

9514 1404 393

Answer:

  yes

Step-by-step explanation:

f(0) = -3 +0.5×0 = -3

f(1) = -3 +0.5×1 = -2.5 = f(0) +0.5

Two linear functions are the same if they agree at two points. Here, f(0) and f(1) are the same for both forms of the function, so these different forms represent the same relation.

Diego is correct.

5 0
3 years ago
Are the following lines parallel, perpendicular, or neither?
natta225 [31]

Answer:

Perpendicular

Step-by-step explanation:

Parallel lines mean lines that have same slope but since both equations have different slopes which you can check by looking at m-value in y = mx + b. In this case m1 or first slope is -4/3 and m2 or second slope is 3/4.

Perpendicular means that both lines are reciprocal to each other. This means the perpendicular condition is or satisfies \displaystyle \large{m_1m_2 = -1 \longrightarrow m_1 = -\frac{1}{m_2} \longrightarrow m_2 = -\frac{1}{m_1}}

We have m1 = -4/3 and m2 = 3/4.

Therefore, -4/3 * 3/4 = -1 thus both lines are perpendicular to each other as it satisfies m1m2 = -1 condition.

8 0
3 years ago
(ZOOM IN TO SEE THE QUESTION) I need help!!!
Darina [25.2K]

Answer:

359 is your answer

Step-by-step explanation:

Have a good day ;-)

3 0
4 years ago
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the sum of three consecutive integers is 186. what are the integers? the first integer is _ the second integer is _ the third in
UNO [17]
The integers are x - 1, x and x + 1

x - 1 + x + x + 1 = 186
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x = 186/3 = 62

Therefore, the numbers are 61, 62 and 63
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3 years ago
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