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3 years ago

Uhh answer 1 plus 1 to get points from me I’ll give ya twenty lol

Mathematics

2 answers:

ladessa [460]3 years ago

8 0

1+1 = 3 dhdhsiwodndhdinss

Licemer1 [7]3 years ago

5 0

Answer:

Step-by-step explanation:

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Sati [7]

Answer:

176 mm

Step-by-step explanation:

The circumference of a circle is the perimeter of a circle (length of a circle). The circumference of a circle is given as:

Circumference (C) = 2πr = πd, where d is the diameter

The circumference of a circle with diameter 7 mm is:

C = πd = 22/7(7) = 22 mm

The length of the paper to round the cylindrical pencil is the same as the perimeter of the pencil which is 22 mm.

To round the pencil 8 times, the length of the paper needed = 8 × 22 mm = 176 mm

6 0

3 years ago

Eloise has a piece of string that she cuts into smaller pieces. This line plot shows the lengths of the pieces. Matthew has a pi

Marina86 [1]

Answer:

15 1/3

Step-by-step explanation:

7 0

3 years ago

Shawn's Rentals charges $27.50 per our to rent a surf board and a wet suit. Darla's Surf Shop charges $23.25 per hour to rent a

Alex787 [66]

PLS GIVE BRAINEST THE AWNSER IS $67.75 just add em up

4 0

2 years ago

The following is the frequency distribution for the speed of a sample of automobiles traveling on an interstate highway. Speed (

svlad2 [7]

Answer:

Standard Deviation is 18.57 .

Step-by-step explanation:

We are given the frequency distribution for the speed of a sample of automobiles traveling on an interstate highway;

Speed (mph) Frequency (f) X X*f X - $Xbar$ $(X-Xbar)^{2}$

50 - 54 4 52 208 52 - 65 = -13 169

55 - 59 3 57 171 57 - 65 = -8 64

60 - 64 2 62 124 62 - 65 = -3 9

65 - 69 5 67 335 67 - 65 = 2 4

70 - 74 2 72 144 72 - 65 = 7 49

75 - 79 5 77 385 77 - 65 = 12 144

∑f = 21 ∑X*f = 1367

Mean of the data, $Xbar$ = $\frac{\sum Xf}{\sum f}$

= $\frac{1367}{21}$ = 65.09 ≈ 65 .

Now, Standard deviation, s = $\sqrt{\frac{\sum f*(X-Xbar)^{2} }{n-1}}$

s = $\sqrt{\frac{(4*169)+(3*64)+(2*9)+(5*4)+(2*49)+(5*144)}{6-1} }$ = $\sqrt{\frac{1724}{5} }$ = 18.57

Therefore, standard deviation is 18.57 .

5 0

3 years ago

Ben had two copies of the same poster in different sizes. Both posters are in the shape of a square. The side length of the two

omeli [17]

Answer:

$\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}$

the question states that a person named Ben has two copies of the same poster having different sizes , provided they both are squares !

further , we've been given that the side length of the posters are in the ratio of 3:7 and the perimeter of the smaller posted is 27 cm .

We've been asked to find the perimeter of the bigger poster !

so let's start ~

$let\: the \: length \: of \: the \: smaller \: poster \: be \: 3x \\ \\ let \: the \: length \: of \: the \: bigger \: poster \: be \: 7x \\ \\ now \: , \: \\ \\ perimeter \: of \: square = 4 \times side \\ \\ \implies \: perimeter \: of \: shorter \: square = 4 \times 3x \\ \\ \implies \: 27 = 3x \\ \\ x = \cancel\frac{27}{3} \\ \\ \implies\red{\boxed{ \: x = 9 \: cm}}$

now ,

$side \: length \: of \: bigger \: square = 7x \\ \\ \implies \: 7 \times 9 = 63 \: cm \\ \\ \therefore \: perimeter \: of \: bigger \: square = 4 \times 63 \\ \\ \bold\pink{\implies \: 252 \: cm}$

hope helpful :D

4 0

2 years ago