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DochEvi [55]
3 years ago
13

NEED HELP ASAP!!! WILL MARK BARINLIEST!!!

Mathematics
1 answer:
andrew-mc [135]3 years ago
6 0

Answer:

working together, they can paint the room in 4 hrs 14 min

Step-by-step explanation:

Multiply both sides by 72x

8x+%2B+9x+=+72

17x+=+72

x+=+4.24 hrs

.24%2A60+=+14.4

working together, they can paint the room in 4 hrs 14 min

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Circle 1 is centered at (5, 8) and has a radius of 8 centimeters. Circle 2 is centered at (1, −2) and has a radius of 4 centimet
Masja [62]

Answer:

The answer in the procedure

Step-by-step explanation:

we know that

Figures can be proven similar if one, or more, similarity transformations (reflections, translations, rotations, dilation's) can be found that map one figure onto another.  

In this problem to prove circle 1 and circle 2 are similar, a translation and a scale factor (from a dilation) will be found to map one circle onto another.

we have that

Circle 1 is centered at (5,8) and has a radius of 8 centimeters

Circle 2 is centered at (1,-2) and has a radius of 4 centimeters

step 1

Move the center of the circle 1 onto the center of the circle 2

the transformation has the following rule

(x,y)--------> (x-4,y-10)

so

(5,8)------> (5-4,8-10)-----> (1,-2)

center circle 1 is now equal to center circle 2  

The circles are now concentric (they have the same center)

step 2

A dilation is needed to decrease the size of circle 1 to coincide with circle 2

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radius circle 1 will be=8*scale factor-----> 8*0.5-----> 4 cm

radius circle 1 is now equal to radius circle 2  

therefore

A translation, followed by a dilation will map one circle onto the other, thus proving that the circles are similar

6 0
3 years ago
You have an aquarium in the shape of a rectangular prism. The base is 4 feet by 3 feet. The height is 2 feet. How many square fe
fiasKO [112]
Since it is about only the outer part of the aquarium which is made of glasses we need to calculate the total surface area.

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3 years ago
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Fynjy0 [20]

Answer:

1/3

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2 years ago
the area of a rectangular back yard is given by the trinomial b^2+5b-24. What are possible dimensions of the backyard?
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B^2+5b-24 Using the AC method for factoring (b+8)(b-3)
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