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slega [8]
3 years ago
6

Simplify negative 7 and 1 over 8 − negative 9 and 1 over 2

Mathematics
2 answers:
Kaylis [27]3 years ago
5 0

-7 1/8  -  -9 1/2

Rewrite 1/2 as 4/8:

-7 1/8 -  -9 4/8

subtracting a negative becomes addition:

-7 1/8 + 9 4/8

= 2 3/8

Kryger [21]3 years ago
4 0

Answer:

You can put it into 3 forms:

Exact form: 19/8

Decimal Form: 2.375 (Rounded=2.38)

Mixed Number Form: 2 3/8

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What is the surface area of the sphere?
Fantom [35]

Answer:

<em>The surface area of the sphere is 314 mi².</em>

Step-by-step explanation:

According to the given diagram, the diameter of the sphere is 10 mi.

If the radius is r, then diameter =2r

So....

2r=10\\ \\ r=\frac{10}{2}= 5

<u>Formula for the surface area of a sphere</u>:  A_{S}= 4\pi r^2

Plugging the value of r into this formula, we will get...

A_{S}=4\pi(5)^2\\ \\ A_{S}=4\pi(25)\\ \\ A_{S}=4(3.14)(25)\ \ [Using\ \pi=3.14]\\ \\ A_{S}=314

So, the surface area of the sphere is 314 mi².

7 0
3 years ago
A pair of events are observed to have coordinates (0s,0m) and (50.0s,9.00×109m) in a frame s. what is the proper time interval δ
Ludmilka [50]
To find out time interval δt we need to substract initial time from the final time. In this question first number in the coordinates representes time:

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5 0
3 years ago
A polynomial p has zeros when x=5, x=-1 and x=-1/4
kiruha [24]

Answer:

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4 0
3 years ago
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Which pairs of rectangles are similar polygons?
Ganezh [65]

The pairs of rectangles are similar polygons; Option C and Option D.

<h3>What is a polygon?</h3>

A polygon is a closed figure made up of three or more line segments connected end to end.

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Two polygons whose corresponding angles are congruent and the lengths of the corresponding sides are proportional.

C. 1.89/2.1 = 81/0.9 = 90

D. 120 / 24 = 60 / 12 = 5

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7 0
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Help me please
barxatty [35]

Answer: A

Step-by-step explanation:

7 0
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