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3 years ago

Given the function f(x) = 3x + 1, evaluate f(a + 1).

Mathematics

2 answers:

algol133 years ago

7 0

Answer:

3a + 4

Step-by-step explanation:

Given the function

f(x) = 3x + 1,

Substitute x with a + 1

f(a + 1) = 3(a+1) + 1 =
3a + 3 + 1 =
3a + 4

VMariaS [17]3 years ago

7 0

This is really simple if you get it the answer is 3a+4

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3 years ago

Solve ABC <br>c=10, B=35°, C=65%

NISA [10]

Answer:

Part 1) The measure of angle A is $A=80\°$

Part 2) The length side of a is equal to $a=10.9\ units$

Part 3) The length side of b is equal to $b=6.3\ units$

Step-by-step explanation:

step 1

Find the measure of angle A

we know that

The sum of the internal angles of a triangle must be equal to 180 degrees

$A+B+C=180\°$

substitute the given values

$A+35\°+65\°=180\°$

$A+100\°=180\°$

$A=180\°-100\°=80\°$

step 2

Find the length of side a

Applying the law of sines

$\frac{a}{sin(A)}=\frac{c}{sin(C)}$

substitute the given values

$\frac{a}{sin(80\°)}=\frac{10}{sin(65\°)}$

$a=\frac{10}{sin(65\°)}(sin(80\°))$

$a=10.9\ units$

step 3

Find the length of side b

Applying the law of sines

$\frac{b}{sin(B)}=\frac{c}{sin(C)}$

substitute the given values

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$b=\frac{10}{sin(65\°)}(sin(35\°))$

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2 years ago

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20^2 + 20^2 = 800
Square root of 800 = 28.3
Then do 28.3-20=8.3
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2 years ago

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Step-by-step explanation:

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