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Nataliya [291]
3 years ago
13

Audrey needs to cut 1 meter of yellow ribbon and 28 centimeters of blue ribbon. In total, how many centimeters of ribbon does sh

e need?
centimeters
Mathematics
2 answers:
scoray [572]3 years ago
5 0
She needs to cute 128 cm of ribbon because 1 m is equal to 100 cm and when you add 28 and 100 you get 128

Katyanochek1 [597]3 years ago
4 0

Answer:  She needed 128 cm of ribbon.

Step-by-step explanation:

Since we have given that

Length of yellow ribbon needed to be cut = 1 meter

Length of blue ribbon needed to be cut = 28 cm

We need to find the number of centimeters she needed to be cut.

First of all, we convert meter into centimeter.

As we know that

1 meter = 100 centimeter

So, Total number of centimeters of ribbon she needed is given by

100+28\\\\=128\ cm

Hence, She needed 128 cm of ribbon.

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Pls help
KATRIN_1 [288]

Answer:

169.04 in² (nearest hundredth)

Step-by-step explanation:

Surface area of a cone = \pir² + \pirl

(where r = radius of the base and l = slant height)

Given slant height l = 10 and surface area = 188.5

Surface area  = \pir² + \pirl

188.5 = \pir² + 10\pir

\pir² + 10\pir - 188.5 = 0

r = \frac{-10\pi +\sqrt{(10\pi )^2-(4\times\pi \times-188.5)} }{2\pi } = 4.219621117...

Volume of a cone = (1/3)\pir²h

(where r = radius of the base and h = height)

We need to find an expression for h in terms of l using Pythagoras' Theorem a² + b² = c², where a = radius, b = height and c = slant height

r² + h² = l²

h² = l² - r²

h = √(l² - r²)

Therefore, substituting found expression for h:

volume of a cone = (1/3)\pir²√(l² - r²)

Given slant height l = 10 and r = 4.219621117...

volume = 169.0431969... = 169.04 in² (nearest hundredth)

5 0
3 years ago
Read 2 more answers
Combine like terms 6x - (5x) + 2x + (-3)
Leya [2.2K]

Answer:

13x - 3

Step-by-step explanation:

Step 1:

6x - ( 5x ) + 2x + ( - 3 )         Equation

Step 2:

6x + 5x + 2x - 3     Open Parenthises

Answer:

13x - 3       Add

Hope This Helps :)

6 0
4 years ago
A submarine is positioned at 300 feet below sea level. A bird is flying 100 foot above sea
alexandr1967 [171]

Answer:

h = 400 ft

The bird is 400 ft above the submarine

Step-by-step explanation:

Given;

The submarine is 300 feet below sea level

Vertical distance between submarine and sea level h1 = 300 feet

The bird is flying at 100 feet above sea level

Vertical distance between the sea level and the bird h2 = 100 feet

The total vertical distance between the bird and the submarine is the sum of the vertical distance between submarine and sea level and the vertical distance between the sea level and the bird.

h = h1 + h2

h = 300 ft + 100 ft

h = 400 ft

The bird is 400 ft above the submarine

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3 years ago
PLZ HELP ME WITH THIS!!!<br> I FORGOT MY NOTESSS its due in 2 days
Aliun [14]
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3 years ago
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From 2000-2003, students were tested by the state in the four major subject areas of math, science, English and social studies.
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