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hjlf
3 years ago
8

The temperature at 5pm is 20F. The temperature at 10pm is -5F. How many degrees did it fall?please show work

Mathematics
1 answer:
arsen [322]3 years ago
4 0
Change in temperature = Final temp. - Initial temp.
⇒ -5 - 20 = -25 F

So, Temperature fall be 25 degree. [ -ve sign shows temperature fall]

Hope this helps!
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3) The image of triangle DEF is triangle D'E'F'.
pochemuha

Answer:

dilation with a scale factor of 3/2, centered at origin

Step-by-step explanation:

Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, reflection, translation and dilation.

Rigid transformation are transformations that preserve the shape and size of an object. That means that they produce an image which is congruent to the object. Examples of rigid transformation is rotation, reflection and translation. Dilation is not a rigid transformation because it does not preserve the shape and size of the object.

All the transformation of the triangle will be congruent except the dilation with a scale factor of 3/2, centered at origin.

4 0
3 years ago
Pi/6 is the reference angle for:
Ksju [112]
Option B. 13π/6 and Option D. 5π/6

To get the reference angle π/6 for the given angles we will check each angle given in the options.
A. 8π/6
Since 8π/6 means 240° which lies in 3rd quadrant. Therefore reference angle of 240°= 240-180 = 60° or π/3
B. 13π/6
13π/6 means 390° which lies in first quadrant.
Therefore reference angle = 390-360 = 30° or π/6
C. 3π/6
Since 3π/6 means 90° therefore reference angle of 90° is the same as 90°.
Or the reference angle is = π/2
D. 5π/6
5π/6 means angle is 150° which lies in second quadrant therefore reference angle of 150° = 180-150 = 30° or π/6
answer is Option B and D.
8 0
2 years ago
Suppose 49,000 people have tickets for a basketball game. Arena A seats 40,000 people. Arena B seats 50,000. Which arena should
sp2606 [1]

Arena B should host the game

Step-by-step explanation:

Arena A has 40000 seats

Arena B has 50000 seats

The people that have the tickets are 49000.

As we can see that 40000<49000 so Arena A is not suitable for hosting the game because 9000 people will be left.

For Arena B, 50000>490000, which means that 49000 people can easily be seated there. So,

Arena B should host the game

Keywords: Comparison, Operators

Learn more about comparison at:

  • brainly.com/question/2116906
  • brainly.com/question/2131336

#LearnwithBrainly

8 0
3 years ago
A school club needs 300 feet of rope for a project. They have the amounts of rope listed below.
Minchanka [31]

Answer:

43.25 feet.  

Step-by-step explanation:

We have been given that school club needs 300 feet of rope for a project.

First of we will change given lengths of ropes in feet.

\text{2 pieces of 16 yards}=2\times16\text{ yards}=32\text{ yards}

1 yard =3 feet

32 yards= 3*32 feet = 96 feet.

12.5 yards = 3*12.5 feet = 37.5 feet.

Let us find the amount of rope school already have by adding all the given amounts.  

\text{Total amount of rope that school club already have}=96+37.5+123.25

\text{Total amount of rope that school club already have}=256.75

Now let us subtract 256.75 feet from 300 feet to find the amount of rope that school club needs to complete the project.

\text{Amount of rope school club needs to complete the project}=300-256.75

\text{Amount of rope school club needs to complete the project}=43.25

Therefore, the school club needs 43.25 feet of additional rope to complete their project.

7 0
3 years ago
Worth five points! Will mark the first person who answered with an actual correct answer brainliest and i don't lie about brainl
Pepsi [2]
The measure of angle F is 26 degrees or A. Triangle DEF is an isosceles triangle, with DE=DF. Using base angles theorem, we know that the measures of angles D and F are congruent. Therefore, angle F is 26 degrees.
4 0
3 years ago
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