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3 years ago

Hello again! I need help with this question!

Mathematics

1 answer:

otez555 [7]3 years ago

5 0

Answer:

(f o g) = -5x+22

Step-by-step explanation:

f o g basically means f(g(x))

So:

f(g(x)) = -5(x-4)+2

f(g(x)) = -5x+20+2

f(g(x)) = -5x+22

Therefore: (f o g) = -5x+22

This is called function composition. Basically, the output of g(x) goes into the input of f(x).

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4. Given directed line segment CD, if point E divides CD three-fourths of the way from C to D, find the coordinates of E, then p

cricket20 [7]

Answer:

Point E is given by $\left ( \frac{3mx_1+4x_0}{7},\frac{3y_1+4y_0}{7} \right )$

Step-by-step explanation:

Let points C and D be $(x_0,y_0),\,(x_1,y_1)$ and let point E divides it in ratio $m:n$ .

Then coordinates of point E are given by $\left ( \frac{mx_1+nx_0}{m+n},\frac{my_1+ny_0}{m+n} \right )$

Put $m:n=3:4$

Point E is given by $\left ( \frac{3mx_1+4x_0}{3+4},\frac{3y_1+4y_0}{3+4} \right )=\left ( \frac{3mx_1+4x_0}{7},\frac{3y_1+4y_0}{7} \right )$

Now plot point E.

Download pptx

3 0

3 years ago

Evaluate the expression 2l+2w for I=5.7 and w=6.2

inessss [21]

Answer:

23.8

Step-by-step explanation:

2(5.7) + 2(6.2)

11.4 + 12.4

23.8

5 0

2 years ago

Robert and Nelson are in a

Arte-miy333 [17]

15 km
12+3=15 in total if the school is the meeting point of these two distances.

3 0

2 years ago

Fill in the missing terms.

san4es73 [151]

a) 2

b) 2

c) 6

d) 15

e) 2

f) 3

6 0

2 years ago

The median age of the U.S. population in 1980 was 30.0 years. In 1991, the median age was 33.1 years.

ioda

Answer:

a. Life span increased

b. The median age could rise because of the improvement in medical technology. Also more advertisement of healthier life styles, such as eating healthy could have increase the median age.

c. No because this just shows the increase in life span not the decrease in children.

Step-by-step explanation:

a. more people on average lived longer lives. (explanation)

b. self explanatory I guess, my answer pretty much explained it.

c. life span of US citizens does not effect the children population. I guess you could say people lived longer lives to have more children, so possibly the number of children could have increased.

8 0

3 years ago