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3 years ago

PLEASE HELP ME ASAP Find the area. Be sure to write the formula, work and answer with units.

Mathematics

2 answers:

Umnica [9.8K]3 years ago

8 0

170ft^2 A=lw A being area l begging length and then w is for the width

mixas84 [53]3 years ago

7 0

Answer:

170ft^2

Step-by-step explanation:

We need to find the areas of the partitioned areas and then add them to get the total area of the complex figure.

The area of the rectangle can be found by A = lw

The area of the triangle can be found by A = (1/2)*bh

We have already been given the length of the rectangle.

The base of the triangle is 22ft - 12ft = 10ft.

Since this is a 45-45-90 triangle, we can also say that the dashed line is also 10ft long, and this also represents the width of the rectangle.

This means that the height of the triangle and the width of the rectangle are both 10ft.

Area of rectangle = lw

A = 12ft * 10ft

A = 120ft^2

Area of triangle = (1/2)*bh

A = (1/2) * 10ft * 10ft

A = (1/2) * 100ft^2

A = 50ft^2

The total area of the figure is 120ft^2 + 50ft^2 = 170ft^2.

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You are choosing a new cell phone. The screen on your current phone is 10.8 cm high and 6.1 cm wide. The screen on the new phone

Leto [7]

Answer:

19.68 cm^2

Step-by-step explanation:

Area of Current Phone

First, find the area of the current phone. We can assume the screen is rectangular. The area of a rectangle can be found using:

a=l*w

We know the length is 10.8, and the width is 6.1, so we can substitute them in

a=10.8*6.1

a=65.88

Current Phone: 65.88 cm^2

Area of New Phone

Find the area of the new phone.

a=l*w

We know the length is 12.4, and the width is 6.9, so we can substitute them in

a=12.4*6.9

a=85.56

New Phone: 85.56 cm^2

Difference

We want to find how much larger the new phone screen is. To do this, find the difference between the new phone area, and the current phone area.

new phone - current phone

85.56-65.88

19.68

The new phone screen is 19.68 cm^2 larger than the current phone screen

7 0

3 years ago

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If a₁ = 4 and an = 5an-1 then find the value of a5.

igor_vitrenko [27]

The value of $a_{5}$ is 2500, when $a_{1}=4$ and $5a_{n-1}$ .

Given that, $a_{1}=4$ and $5a_{n-1}$ .

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<h3>What is an arithmetic sequence?</h3>

An arithmetic progression or arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant.

Now, to find the value of $a_{5}$ :

$a_{2} =5a_{2-1}=5a_{1}=5 \times4=20$

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Therefore, the value of $a_{5}$ is 2500.

To learn more about arithmetic sequence visit:

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2 years ago

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zysi [14]

Step-by-step explanation:

here,

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Rate (R)=. 3.4%

time (t)=3 yrs

now,

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here,

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here he will get his total investment as £6633.044 in compound interest of 3.4%

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2 years ago

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3 years ago

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3 years ago