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jekas [21]
3 years ago
13

Use the following function rule to find f(3). f(x) = (2)^x+2 f(3)=

Mathematics
1 answer:
mixas84 [53]3 years ago
3 0

The value of f(3) is 10

Explanation:

Given that the function rule is f(x)=2^x+2

We need to determine the value of f(3)

<u>The value of f(3):</u>

The value of f(3) can be determined by substituting x=3 in the function rule f(x)=2^x+2

Thus, we have,

f(3)=2^3+2

Simplifying the values, we get,

f(3)=8+2

Adding the value, we get,

f(3)=10

Thus, the value of f(3) is 10

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The answer is d hope it helps!
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Two times x is 8 more than y. The sum of x and two times y is 14. Write two equations and graph to find the value of y.
Sauron [17]

Option B: $y=4$ is the value of y

Explanation:

It is given that "Two times x is 8 more than y". Writing it as expression, we have,

2x=8+y

It is also given that "The sum of x and two times y is 14". Writing it as expression, we have,

x+2y=14

To find the value of y, let us solve the two equations using substitution method.

From the equation 2x=8+y , let us find the value of x.

x=\frac{8+y}{2}

x=\frac{8}{2} +\frac{y}{2}

x=4+\frac{y}{2}

Now, substituting x=4+\frac{y}{2} in the equation x+2y=14 , we get,

4+\frac{y}{2}+2y=14

      4+\frac{5y}{2} =14

            $\frac{5 y}{2}=10$

            5y=20

              $y=4$

Thus, the value of y is $y=4$

8 0
3 years ago
If this sample is representative of the student population of 360 students, about how many students in the school joined three c
kirill115 [55]

Answer:

For 1 club it is 120 students

Step-by-step explanation:

360/3=120

3 0
3 years ago
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Step-by-step explanation:


4 0
3 years ago
Read 2 more answers
the width of a rectangle is 8 feet and the diagnal length of the rectangle is 13 feet which measurement is closest to the length
____ [38]

Answer:

Well the whole answer is 10.246950 smth smth but I don’t have the multiple choices so your gonna have to round yourself

Step-by-step explanation:

Okay so you have a weigh of 8 and a diagonal of 13.

If you look, theres a triangle there. One side has 8 and the diagonal that was cut forms a 13. So we have a leg and a hypotnuse. To find the other leg (length) just follow the Pythagorean theroum and solve for b or a.

Pythagorean theroum: a^2+b^2=c^2

Now subsitute c for 13 since its the hypotnuse and a or b as 8 but only one.

In this case I’m substituting a for 8.

8^2+b^2=13^2

Solve the squares

64+b^2= 169

Isolate the b

b^2=105

Now square root 105

√105 will give the answer above on a normal calculator but if you have to round, I don’t know what place but you can round.

7 0
3 years ago
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