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3 years ago

Can someone please help me!! this assignment is due at 11:59 I need this done

Mathematics

2 answers:

Dvinal [7]3 years ago

8 0

Tan(40)= x/20 => x= tan(40).20= 16,78
Ok done. Thank to me:>

bija089 [108]3 years ago

4 0

Answer:

x=16.782

Step-by-step explanation:

a=40*

b=20

c=90*

d=40* (corner in lower right corner, we know it equals 40* because all triangles equal 180*)

e=26.108 (bottom side)

Hope this helps! BH

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The Environmental Protection Agency records data on the fuel economy of many different makes of cars. Data on the mileage of 20

artcher [175]

Answer:

A) 8.5 miles per gallon

Step-by-step explanation:

Given

$x = \{12\ 13\ 15\ 16\ 16\ 17\ 18\ 18\ 19\ 19\ 20\ 20\ 22\ 23\ 24\ 26\ 26\ 27\ 27\ 29\}$

$n = 20$

Required

The IQR

This is calculated as:

$IQR = Q_3 - Q_1$

Calculate $Q_1$

$Q_1 = \frac{1}{4}(n + 1)th$

$Q_1 = \frac{1}{4}(20 + 1)th$

$Q_1 = \frac{1}{4}(21)th$

Remove bracket

$Q_1 = 5.25th$

This means that:

$Q_1$ is the mean of 5th and 6th item

From the given data:

$5th \to 16$

$6th \to 17$

So, we have:

$Q_1 = \frac{1}{2}(16 + 17)$

$Q_1 = \frac{1}{2}(33)$

$Q_1 = 16.5$

$Q_1 = 16.25$

Calculate $Q_3$

$Q_3 = \frac{3}{4}(n + 1)th$

$Q_3 = \frac{3}{4}(20 + 1)th$

$Q_3 = \frac{3}{4}(21)th$

Remove bracket

$Q_3 = 15.75th$

This means that:

$Q_3$ is the mean of 15th and 16th item

From the data:

$15th \to 24$

$16th \to 26$

So:

$Q_3 = \frac{1}{2}(24 + 26)$

$Q_3 = \frac{1}{2}(50)$

$Q_3 = 25$

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$IQR = Q_3 - Q_1$

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$IQR = 8.5$

7 0

3 years ago

Can you help me with this

andreev551 [17]

Answer:

The answer is true

Step-by-step explanation:

6 0

3 years ago

How does one solve for the n+1st term with the nth term of a sequence

love history [14]

Answer:

<h3>The answer is option B</h3>

Step-by-step explanation:

The nth term of the sequence is

A(n) = 5n + 7

To find the (n+1)st term substitute n+1 into the general equation

That's

<u>For (n + 1)st term</u>

A(n+1) = 5(n+ 1) + 7

A(n+1) = 5n + 5 + 7

Hope this helps you

4 0

3 years ago

Read 2 more answers

A rectangle is drawn so that the width is 1 feet shorter than the length. The area of the rectangle is 12 square feet. Find the

Nikitich [7]

Answer:

the length is 4

Step-by-step explanation:

we know the area is 12 4x3=12 so either 4 or 3 is the length the word problem says the width is one less than the lengh therefore the answer is 4 your welcome

4 0

3 years ago

Urgent! <br> Find the area created by the overlapping circles given the following information.

Stels [109]

Answer:

209.55in²

Step-by-step explanation:

Find area of sector CADE

Radius =22 in

Angle=90°

Formula to apply is ;

Ф/360 × π × r² where

Ф=angle of sector, π=3.142 and r =radius of circle

$A=\frac{90}{360} *3.142*22*22=380.182in^2$

Find area of triangle CAD where base length is 22 inches and height is 22 inches

Area of triangle formula is;

1/2×b×h where b is base and h is height

$A=\frac{1}{2} *22*22=242in^2$

Find area remaining

380.182-242=138.182in²

Find the area of sector CBDF

Radius=28in

Angle=60°

Formula to apply is ;

Ф/360 × π × r² where

Ф=angle of sector, π=3.142 and r =radius of circle

$A=\frac{60}{360} *3.142*28*28=410.55in^2$

Area of triangle BDC

The formula to apply is

1/2×a×a×sinФ where a=28 inches and Ф=60°

$\frac{1}{2} *28*28*sin60=339.48in^2$

Remaining area

410.55-339.48=71.075in²

Area created by overlapping circles

138.182+71.075=209.26in²

8 0

3 years ago