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3 years ago

Please I want the area and perimeter of this shape!! With steps and explanation please!!

Mathematics

1 answer:

worty [1.4K]3 years ago

7 0

For perimeter you will add each side together so

8ft+22ft+12ft+16ft=58

So your perimeter is 58ft.

For area your going to divide the shape into 2 to get the area as this is an irregular shape, so

Base 1+base2x height / by 2

22+8 x4/2

30x4/2

120/2

If you’re wondering how I got 4 I subtracted 16 with 12 to know what the height was. Good luck!!

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What is the vertex of the function x2 - 14x - 95 = 0?

Katarina [22]

The vertex is (7, -144)

To find it:

x = -b/2a so x = -(-14)/2*1 = x = 14/2 = 7

Plug 7 for x and find y

7^2 - 14 * 7 - 95 = -144

3 0

4 years ago

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Martha (from problem 9) has some expenses each week. Each week she buys $9.72 worth of

Verdich [7]

if Martha is not earning money to pay it back, it would be negative. Each week, she loses -9.72 dollars. so -9.72 x 3 weeks = your problem. I'll let you take it from there and solve the rest

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3 years ago

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If BPD and dpc have a sum of 72 degrees What is APC? A. 18° B 90° D.180°

quester [9]

The correct answer is : 108

7 0

3 years ago

Please help with this too

vovikov84 [41]

Answer:

Step-by-step explanation:

Garden roller is in the shape of cylinder.

So, one revolution = Curved surface area of the cylinder

diameter = 70 cm

radius = 70/2 = 35 cm

h = 100 cm

Curved surface area of the cylinder = 2πrh

= $2*\frac{22}{7}*35*100$

= 22000 square cm

Area covered in 15 revolutions = 15 * 22000

= 330000 square cm

2) Coin

diameter = 22 mm

r = 22/2 = 11 mm

Volume of coin = 66 mm

πr²h = 66

$\frac{22}{7}*11*11*h=66\\\\\\h=\frac{66*7}{11*11*22}\\h=0.17 mm$

8 0

3 years ago

Ellie said, "You can regroup the 440 minutes Krystal

aleksandrvk [35]

Answer:

a. Ellie is saying that principle of conversion of units of time can be utilized to convert the number of minutes that Krystal spent on each activity to hours.

b. Krystal spent 7.33 hours or $7\frac{2}{6}$ hours on each activity.

Step-by-step explanation:

Time is any of the quantities of different measurements used to evaluate the duration of events. For example, if two men start a 100 metre race, it is time that is used to evaluate the duration of the first runner and the second runner. There are various units that are used in the measurement of time ranging from seconds to minutes to hours to days to weeks to months to years etc.

All the units for measuring time are interrelated and can be converted from one unit to the other. 60 seconds make a minute, 60 minutes make up an hour, 24 hours make up a day. Seven days = week, 4 weeks make a month and 12 months make a year.

a. In the question Ellie said that I can regroup the 440 minutes that Krystal spent on each activity as hours. What Ellie is virtually saying is that since all the units used in the measurement of time are interrelated for eg 7 days make a week and 4 weeks make a month, it is possible to change or convert time from one unit to another. This means that the 440 minutes that Krystal spent on each activity for eg reading books can be changed or transformed to another unit (hours).

b. Again, since Krystal spent 440 minutes on each activity, we can calculate how many hours Krystal spent on a single activity since we already know how many minutes that make an hour:-

Since 60 minutes make 1 hour, then the number of hours that Krystal spent on one activity is:

60 minutes ---------- 1 hour

440 minutes --------- ? hour

440/60 × 1

= 7.33 hours

= $7\frac{2}{6}$ hours

Therefore Krystal spent 7.33 hours or $7\frac{2}{6}$ hours on one activity

6 0

4 years ago