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lord [1]
3 years ago
15

I need help on this question

Mathematics
1 answer:
Pie3 years ago
4 0

Answer:

(f-g)(4) = 10

Step-by-step explanation:

(f-g)(x) = f(x) - g(x)

= 1/2 x^2 - 1/4 x + 4 - 1/2 x + 1

= 1/2 x^2 - 1/4 x - 1/2 x + 4 + 1

= 1/2 x^2 - 3/4 x + 5

(f-g)(4)

= 1/2 (4)^2 - 3/4 (4) + 5

= 1/2 * 16 - 3 + 5

= 8 - 3 + 5

= 5 + 5

= 10

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The number of nails of a given length is normally distributed with a mean a length of 5 in. and a
malfutka [58]

Answer:

82 nails

Step-by-step explanation:

4.97 and 5.03   are both one standard deviation from the mean...

z scores    . 8413    and  .1587

.8413 - .1587 = .6826    or    68.26 %  of the nails are in this range

68.26 %  *  120 = ~82 nails

   

7 0
2 years ago
Overlapping events are events that have at least one outcome in common.<br> True<br> False
Alexeev081 [22]

Answer:

True

Step-by-step explanation:

5 0
3 years ago
please someone answer number 1 and number 3!! it would be much appreciated if you could make it sound like and 8th graders work.
Luda [366]

Almost all linear equations are functions but not all straight lines are a graph of a function.A linear function with its y-intercept as zero passes through the origin.

step-by-step explanation:

1. Linear means a graph that makes a straight line where as a function represents all set of values in (x,y) system on a graph where a single x point has a corresponding y point value.

A function can be linear to form a straight line or a curve in the case of nonlinear functions.

The similarity is observed where both the straight line and the function assume the shape of a straight line. In this case, they are both linear. However, a function can be a curve and not a straight line, thus the difference.

3. The origin (0,0) and the y-intercept can be found in a table of values for a certain function and appear on the graph and the equation of a function. For example in the function y=4x, a table of value of x and y can be;

x           y

-1          -4

0           0

1            4

2           8

Here you notice when x=0, y=0, this tells you that the y-intercept is 0. From the slope intercept form of a graph, y=mx+c , c is the y-intercept, and for our case, y=4x, the value of c=0 to mean the function passes through the origin (0,0). This is observed in the table where x=0, y=0, on the attached graph where the line passes through the origin and in the equation y=4x where the value of c=0

Learn More

Linear graphs :brainly.com/question/11954757

Keywords : straight line, function, origin, y-intercept, table, equation , graph

#LearnwithBrainly

4 0
4 years ago
Help me answer this question please help it is hard
kati45 [8]
Add all of the numbers together , and then divide by how many numbers your adding up. in this case you would divide by 8.
5 0
4 years ago
You can draw a regular hexagon using only a straightedge and compass.A. TrueB. False
Naddik [55]
Tbh I think the answer is true! hope i helped!
4 0
3 years ago
Read 2 more answers
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