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monitta
4 years ago
11

What value of b makes the polynomial below a perfect square?. . x2 + bx + 16. . b =. . A. 16 . B. 8 . C. 2 . D. 4 .

Mathematics
1 answer:
STALIN [3.7K]4 years ago
6 0
( x + 4 )² = x² + 8 x + 16.  For b=8 this polynomial becomes the perfect square. 
Answer : B ) 8
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Identify the type of function represented by f(x)=1/2(3)^x
Firlakuza [10]

The function represented by f(x) = (1/2)(3)ˣ is an exponential growth

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two numbers and variables.

An independent variable is a variable that does not depend on any other variable for its value whereas a dependent variable is a variable that depend on any other variable for its value.

The independent variable in the function f(c) = 2c + 9 is c whereas the dependent variable is f.

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The independent variable in the function f(c) = 2c + 9 is c whereas the dependent variable is f.

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two numbers and variables.

An independent variable is a variable that does not depend on any other variable for its value whereas a dependent variable is a variable that depend on any other variable for its value.

An exponential function is in the form:

y = abˣ

Where a is the initial value and b is the multiplication factor.

If b > 1, it is an exponential growth but if b < 1, it is an exponential decay.

Given the function:

f(x) = (1/2)(3)ˣ

since 3 > 1, it is an exponential growth.

The function represented by f(x) = (1/2)(3)ˣ is an exponential growth

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3 0
2 years ago
PLEASEEE HELP ME!!! I NEED THE ANWER ASAP!!!
Artist 52 [7]

Answer:

y = 3x + 30

Step-by-step explanation:

This is what the table should look like.

Number of Bars Sold (x)           Total Earnings (dollars) (y)

0                                                 30

1                                                  33

2                                                 36

3                                                 39

When x = 0, y = 30. The point (0, 30) is the y-intercept.

As x goes up by 1, from 0 to 1, from 1 to 2, from 2 to 3, y goes up by 3, from 30 to 33, from 33 to 36, from 36 to 39.

A change of 1 in x results in a change of 3 in y.

That is a slope of 3 since

slope = (change in y)/(change in x)

The equation of a line in slope-intercept form is

y = mx + b

We have m = 3 and b = 30, so the equation is

y = 3x + 30

Answer: 3x + 30

5 0
3 years ago
2.4(3x+2)+0.3(x+4)=6.6
Lunna [17]
X = 0.08

i got it right
8 0
3 years ago
Read 2 more answers
The label for a square box of pasta has an area of 16 in? What is the side length of the box?
bekas [8.4K]

Answer:

4.

Step-by-step explanation:

A square has four sides of equal length.

And, the formula for area of a square is a^2.

And, 4^2 or 4⋅4 = 16.

Therefore, the side length of the box is 4.

3 0
3 years ago
HELP URGENT PLEASE!
arlik [135]
The numbers are 11 and 2 One number is even, one is odd, and they are both the least common factors of 22
3 0
4 years ago
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