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Blizzard [7]
3 years ago
13

Order these cards starting with he smallest fraction 7/8 5/12 11/2 3/4 4/5

Mathematics
1 answer:
Artemon [7]3 years ago
7 0
1. Convert all fractions to decimals.
7/8 = 0.875
5/12 = 0.417
11/2 = 5.5
3/4 = 0.75
4/5 = 0.8
3. Organize decimals from least to greatest.
0.417, 0.75, 0.8, 0.875, 5.5
4. Put back into fractions.
5/12, 3/4, 4/5, 7/8, 11/2.
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The diameter of a vollyball is 15.5 find its radius and volume.Please answer with full process​
Zolol [24]

Answer:

Radius: 7.75; Volume: 142 (rounded to 3 s.f.)

Step-by-step explanation:

The vollyball is a sphere.

The diameter of a sphere is twice as much as its radius.

Radius = 15.5 ÷ 2

           = 7.75

The volume of a sphere is \frac{3}{4} \pir² where r is the radius.

Volume =  \frac{3}{4} \pi(7.75)²

             = 45.046875\pi

             = 142 (rounded to 3 s.f.)

6 0
3 years ago
A train moves from rest to a speed of 40 m/s in 20.0 seconds. What is its acceleration?
alina1380 [7]

Answer: 25m/s

Explanation:

S1=(2u+v)t   \\ =20×20=400m \\ S2=40×20=800m \\ S3=(2u+v)t \\ =20×40=800m \\ Total \:  displacement =2000 m \\ Total  \: time \:  taken =80 m \\ V=802000=25m/s

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4 years ago
Solve the two-step equation and identify the steps.
Novay_Z [31]

Answer:

x=-10

Step-by-step explanation:

The first step is to subtract 6.1 on both sides:

1.4x=-14

The second step is to divide 1.4 on both sides:

x=-10

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3 years ago
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Segment BD is an altitude of triangle ABC. Find the area of the triangle.
Sever21 [200]

Answer: The correct option is A, i.e., 7.5.

Explanation:

It is given that ABC is a triangle and BD is an altitude.

Since BD is an altitude, therefore the height of the triangle is BD and the base of the triangle is AC.

The distance formula to find the distance between two points is,

D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

First, we find BD, where B(-1,4) and D(2,4).

BD=\sqrt{(2+1)^2+(4-4)^2}=\sqrt{9} =3

So, the height of the triangle is 3.

Now, we find the value of AC, where A(2,1) and C(2,6).

AC=\sqrt{(6-1)^2+(2-2)^2}=\sqrt{25} =5

So, the base of the triangle is 5.

The formula to find the area of a triangle is,

A=\frac{1}{2}\times {\text{base}}\times {\text{height}}

A=\frac{1}{2}\times 5\times 3=\frac{15}{2}=7.5

Therefore, the area of the triangle is 7.5 unit square and the correct option is A.

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3 years ago
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Answer:

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Step-by-step explanation:

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