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nlexa [21]
3 years ago
14

Round 25.395 to the nearest hundredths.

Mathematics
2 answers:
Pachacha [2.7K]3 years ago
6 0

Answer:

25.40

Step-by-step explanation:

5 rounds up but 9 rounds up to ten so you add one to the tenths

sveta [45]3 years ago
3 0

Answer:

25.40

Step-by-step explanation:

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A circle is represented by the equation x²+y²−8y−20=0. What is the diameter of the circle?
vredina [299]

Answer:

center:(0,4) radius:6

Step-by-step explanation:

7 0
3 years ago
What is the area of this rectangle in square yards?
Vikentia [17]
In the comment of the other answer, you said that the rectangle is 24 x 18 ft.

First, we have to find out how many square feet that is, and then we can convert it to square yards.

The area of a rectangle is the length multiplied by the width.

A = l x w
A = 24 x 18
A = 432 square feet

To find out how many square yards that is, we divide it by 3, because 1 yard is 3 feet.

432 ÷ 3 = 144

The area of a 24x18ft rectangle is 144 square yards.
7 0
3 years ago
9.01 prove that the two circles are similar
il63 [147K]

Answer:

see the procedure

Step-by-step explanation:

we know that

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

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

we have that

Circle C is centered at (0,-1) and has a radius of 2 units

Circle A is centered at (3,4) and has a radius of 5 units

step 1

Move the center of the circle C onto the center of the circle A

the transformation has the following rule

(x,y)--------> (x+3,y+5)

so

(0,-1)------> (0+3,-1+5)-----> (3,4)

center circle C is now equal to center circle A  

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

step 2

A dilation is needed to increase the size of circle C to coincide with circle A

scale factor=radius circle A/radius circle C-----> 5/2=2.5

radius circle C will be=2*scale factor-----> 2*2.5=5 units

radius circle C is now equal to radius circle A  

therefore

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

4 0
3 years ago
A triangle with the side lengths of 8, 15, 17.5 form a right triangle:
IgorLugansk [536]

It's true, just draw the sides and you'll see there's no other angle you could get.

7 0
3 years ago
Which is the solution to <br> 2<br> x<br> −<br> 6<br> +<br> 4<br> =<br> 14<br> ?
Kaylis [27]

Answer:

x=8

Step-by-step explanation:

2x-6+4=14

Combine like terms

2x-2=14

Add 2

2x=16

Divide

x=8

Checking work)

2(8)-2=14

16-2=14

14=14

8 0
3 years ago
Read 2 more answers
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