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Morgarella [4.7K]
3 years ago
13

If f(x) = x2 + 7, what is the value of f(3)? A) 2 Eliminate B) 12 C) 13 D) 16 E) 17

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
8 0

Answer:

D

Step-by-step explanation:

To evaluate f(3) substitute x = 3 into f(x), that is

f(3) = 3² + 7 = 9 + 7 = 16 → D

You might be interested in
1.
Luba_88 [7]

Hey there!

a = 5 ; b = 2

Option A.

a + b

= 5 + 2

= 7

Option B.

a - b

= 5 - 2

= 3

Option C.

2a + 3b

= 2(5) + 3(2)

= 10 + 6

= 16

Option D.

5a - b

= 5(5) - 2

= 25 - 2

= 23

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

5 0
2 years ago
I need help with this math
enot [183]

Answer:

question? haven't learn this yet but try asking desmos that app helps me a lot!

3 0
3 years ago
Given the arithmetic sequence: u(1)= 124, u(2)= 117, u(3)= 110, u(4)=103,...
omeli [17]

We are given

arithmetic sequence: u(1)= 124, u(2)= 117, u(3)= 110, u(4)=103

so, first term is 124

u(1)= 124

now, we can find common difference

d=u(2)-u(1)

d=117-124

d=-7

now, we can find kth term

u(k)=u(1)+(k-1)d

now, we can plug values

and we get

u(k)=124+(k-1)*-7

u(k)=124-7k+7

u(k)=131-7k

u(k) must be negative

so,

u(k)=131-7k

131-7k

now, we can solve for k

7k>131

k>18.714

so, it's closest integer value is

k=19..............Answer


3 0
3 years ago
URGENT!!!
allsm [11]

Answer:

inequality form -2<x<5

interval notation (-2,5)

sure of my answer

−Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Find the TWO integers whos product is -12 and whose sum is 1<br>​
Deffense [45]

Answer:

\rm Numbers = 4 \ and \ -3.

Step-by-step explanation:

Given :-

The sum of two numbers is 1 .

The product of the nos . is 12 .

And we need to find out the numbers. So let us take ,

First number be x

Second number be 1-x .

According to first condition :-

\rm\implies 1st \ number * 2nd \ number= -12\\\\\rm\implies x(1-x)=-12\\\\\rm\implies x - x^2=-12\\\\\rm\implies x^2-x-12=0\\\\\rm\implies x^2-4x+3x-12=0\\\\\rm\implies x(x-4)+3(x-4)=0\\\\\rm\implies (x-4)(x+3)=0\\\\\rm\implies\boxed{\red{\rm x = 4 , -3 }}

Hence the numbers are 4 and -3

4 0
3 years ago
Read 2 more answers
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