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3 years ago

The function h(t) = 210 – 15t models the altitude of a hot air balloon over time t, in minutes.

1 answer:

6 0

H(10)=210-15(10)
h(10)=210-150
h(10)=60

The hot air balloon is at an altitude of 210. The hot air balloon slowly falls 15 () per minute, for 10 minutes. He ends up at 60 altitude

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Dilate a triangle with vertices (0,0), (0,2) and (2,0) using the scale factor k=3. What is the value of the ratio (new to origin

seropon [69]

Answer:

Part a) The ratio of the perimeters is $3$

Part b) The ratio of the areas is $9$

Step-by-step explanation:

Part A) What is the value of the ratio (new to original) of the perimeters?

we know that

If two figures are similar, then the ratio of its perimeters is equal to the scale factor

Let

z-----> the scale factor

x-----> the perimeter of the new triangle

y-----> the perimeter of the original triangle

$z=\frac{x}{y}$

we have

$z=3$

substitute

$\frac{x}{y}=3$

Part B) What is the value of the ratio (new to original) of the areas?

we know that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

z-----> the scale factor

x-----> the area of the new triangle

y-----> the area of the original triangle

$z^{2}=\frac{x}{y}$

we have

$z=3$

substitute

$\frac{x}{y}=3^{2}$

$\frac{x}{y}=9}$

3 0

3 years ago

Please help me with this use the screen shot

dezoksy [38]

Okay so this is a wild guess but I would say 12. The whole angle is 90, but only 1/3 of that is in the smaller portion of the triangle. So, I assumed that 1/3 of the length of the whole triangle. Three times 6 is 18 and minus AD is 12. So BD=12? This is my best guess hope it helps

4 0

3 years ago

X2+ 1 = 9

Aleks04 [339]

Answer:

X = 4

Step-by-step explanation:

x2 + 1 = 9

We have to cross 1 over to the other side so that x becomes a value on its own. Because we are it over, the addition sign changes to subtraction which makes the expression,

x2 = 9- 1

x2 = 8

For x to stand alone we have to divide both sides by 2

x 2/2 = x

and 8/2 = 4

Therefore x=4 (Answer)

3 0

3 years ago

Please help with the math homework below. Thank you.

tigry1 [53]

Answer:

$8 per lirt

Step-by-step explanation:

if the cost per lirt is $8, the $ per hab will be the same. At x = 8, you can see that the two lines intersect

3 0

3 years ago

Read 2 more answers

If there are n ways of completing a task, and after completing the task in any of these n ways, there are m ways of completing a

mel-nik [20]

Answer:

Step-by-step explanation:

n × m = nm ways

8 0

3 years ago