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garri49 [273]
3 years ago
15

The difference between two numbers is 30. The

Mathematics
1 answer:
Gelneren [198K]3 years ago
7 0

x=smaller numb
7/30 = 2/x
7x=60
x=8.57
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What is the change that occurs to the parent function f(x) = x^2 given the function f(x) = 2(x + 2)^2 + 1.
nikitadnepr [17]

Answer:

The graph is stretched by a factor of 2, moves 2 units to the left, and 1 unit up.

Step-by-step explanation:

The base of the quadratic function is

f(x) =  {x}^{2}

We can transform this function to look narrower or wider.

Looking narrower is termed a stretch.

This happens when a>1

Looking wider is termed a compression.

This happens when 0<a<1

We can also

g(x) = a {(x   + h)}^{2}  + k

+h moves the parent graph to the left by h units

-h moves the parent graph to the left by h units.

+ k moves the parent function up by k units

- k moves the parent function down by k units.

The change that occurs to

f(x) =  {x}^{2}

given

f(x) = 2( {x  + 2)}^{2}  + 1

is that, the graph is stretched by a factor of 2, moves 2 units to the left, and 1 unit up

Therefore the last choice is the correct answer.

3 0
3 years ago
Could you help me with this page
NeTakaya

5. area 0.75*2*0.75*2=2.25 m²

scale 1 in.=2 m so

8 0
3 years ago
15PTS PLEASE HELP ASAP!<br> (dont write random answers pls)
Goryan [66]

Answer:

kkkkkkkk

Step-by-step explanation:

4 0
3 years ago
PLEASE ANSWER - BRAINLIEST IF 2 ANSWERS - 5 STAR RATING - THANKS (PROFILE TOO)
STALIN [3.7K]

Answer:

<u>395.64 m³</u>

Step-by-step explanation:

<u>Volume (figure)</u>

  • Volume (hemisphere) + Volume (cylinder)
  • 2/3πr³ + πr²h
  • πr² (2/3r + h)
  • 3.14 x 9 (2 + 12)
  • 3.14 x 9 x 14
  • 3.14 x 126
  • <u>395.64 m³</u>
5 0
2 years ago
Read 2 more answers
Matt and Anna Killian are frequent fliers on​ Fast-n-Go Airlines. They often fly between two cities that are a distance of 1980
Ymorist [56]

Answer:

y (plane speed) 400 miles/hr

x (wind speed)  40 miles/hr

Step-by-step explanation:

going into the wind make the plane flew 5,5 hours to get 1980 miles, implies the real travel speed was

1980 / 5,5 = 360 miles/hours, and at the same time is the result of:  

speed plane (y)  in direction A to B  plus wind speed (x) in direction B to A. Notice opposites direction speed, so we have:

y + (-x) = 360          (1)

The return fly  took 4,5 hours so 1980/4,5 = 440 miles/ hours as the result

Y + x = 440             (2)

We have a two equation with two variables system, It could be solved for any of the procedures. We will use the substitution method.

From equation      (1)        y + (-x) = 360         y  - x = 360      y = 360 + x    (1)

In the second equation    

y + x = 440         then we replace y for its value as function of x

(360 + x ) + x = 440

Solving for x        360 + 2x = 440      or    2x = 440 – 360        

 x   (440 - 360)/2

 x = 40 miles/hr

 X (wind speed ) = 40 miles/hr

And replacing the value of x in eq. (1)        y = 360 + 40 = 400

Y (plane speed) = 400 miles /hr

3 0
3 years ago
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