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weeeeeb [17]
3 years ago
7

Classwork for Ms. O'Brien's (Root X

Mathematics
1 answer:
alexandr1967 [171]3 years ago
7 0

Answer:

4673 mm²

Step-by-step explanation:

<u>Data</u>

  • base: 51.7 mm
  • height: 90.39 mm

iPhone's screen is a rectangle. The area of rectangle is calculated as base*height. Replacing with data we get:

Area of rectangle = area of the iPhone's screen = 51.7 mm * 90.39 mm =  4673.163 mm² ≈ 4673 mm²

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While sightseeing in Rome, Lance stopped to see the Colosseum. He learned that the height of the outer wall of the Colosseum mea
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Answer:

157.44 feet

Step-by-step explanation:

Given that:

Lance is out for sightseeing in Rome.

Lance went to see the Colosseum.

Height of the outer wall of the Colosseum = 48 meters

Unit Conversion formula:

1 meter = 3.28 feet

To find:

Height of the outer wall of the Colosseum in feet.

Solution:

It is simple problem for the conversion of unit where we already know the value in one unit and the conversion formula as well.

We have to simply find how much 48 meters will be when converted in feet.

1 meter = 3.28 feet

48 meter = 48 \times 3.28 = <em>157.44 feet</em>

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3 years ago
Is it 5 or six units?
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iogann1982 [59]

Answer:

y = -4x

Step-by-step explanation:

y = mx+c

gradient, m

= (4-0)/(-1-0)

= -4

y-intercept, c

= 0

y = -4x+0

y = -4x

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3 years ago
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ElenaW [278]

Answer:

(-2,-4)

Step-by-step explanation:

Turning the point 180 degrees causes the point to be reversed, or upside down, therefore the numbers will become negative.

3 0
3 years ago
Write an equation that can be used to solve the problem. Then answer the question asked. A group of college students are volunte
svp [43]

Answer:

Required equation : \frac{1}{t}=\frac{1}{3}+\frac{1}{9}

Together they can paint the same room in 2.25 hours or 2 hours 15 minutes.

Step-by-step explanation:

It is given that Dale Horton can paint a certain room in 3 hours.

One hour woks of Dale Horton = 1/3

Kathy Garcia can paint the same room in 9 hours.

One hour woks of Kathy Garcia = 1/9

Let together they can paint the same room in t hours.

One hour woks of both = 1/t

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\frac{1}{t}=\frac{3+1}{9}

\frac{1}{t}=\frac{4}{9}

After reciprocal we get

\frac{t}{1}=\frac{9}{4}

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Therefore, together they can paint the same room in 2.25 hours or 2 hours 15 minutes.

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