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miv72 [106K]
3 years ago
13

PLS help me :)))) thx

Mathematics
2 answers:
fomenos3 years ago
8 0

Answer for the first one (7):

A = 96 square inches

Step-by-step explanation:

to find the unknown sides: 6+6=12

and: 14-12=2

then split into rectangles and find the area for each of them by multiplying the two sides and then add the two rectangles' areas together

Answer for the second image (6):

A= 229 square yards

Step-by-step explanation:

to find the unknown sides: 29-22=7

and: 26-21=5

split into rectangles find area for each of them then add the areas to get the answer

svetlana [45]3 years ago
6 0

Answer:

7) 96in²

8)292yd²

Step-by-step explanation:

7)

6×2=12

14×6=84

84+12=96

8)

26×7=182

22×5=110

182+110=292

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X^2-y^2=3y in polar form
Assoli18 [71]

Answer:

Step-by-step explanation:

put x=r cos θ

y=r sin θ

r²cos²θ-r²sin²θ=3rsin θ

r²(cos²θ -sin²θ)=3r sin θ

r²cos 2θ=3rsinθ

r cos 2θ=3 sin θ

r=3sec 2θ sin θ

5 0
3 years ago
While traveling to and from a certain destination, you realized increasing your speed by 40 mph saved 4 hours on your return. Th
Sholpan [36]

<u>Answer:</u>

An equation that relates the speeds of the two legs of the trip

  \frac{640}{x-40}+\frac{640}{x}=4

<u>Explanation:</u>

Given, we have to use x to represent the speed on the second leg

Speed on first leg when increasing your speed by 40 mph will be (x-40)

Distance is given as 640 miles and time is calculated as  

\text { Time }=\frac{\text { Distance travelled }}{\text { speed }}

According to the question, increasing speed saved four hours

Therefore, the equation that relates the speeds of the two legs of the trip will be

\frac{640}{x-40}+\frac{640}{x}=4

5 0
3 years ago
Round 3,058 to the nearest thousand
daser333 [38]
3,058 round to the the Thousands place is 3,000
Hope this helps!
7 0
3 years ago
Read 2 more answers
Round 16.4829 to the nearest hundredth
MrRissso [65]

Answer:

16.48

Step-by-step explanation:

7 0
3 years ago
Find the volume and surface area of the composite figure. Give four answer in terms of π. HELP NEEDED NOW!!! THE RED IS THE ONE
asambeis [7]

Answer:

Divide the figure above into a cylinder and a dome

+) the volume of the dome is

v1 =  \frac{1}{12} \pi6 {}^{3}  = 18\pi

the surface area is

s1 = \pi3 {}^{2}  = 9\pi

+) the volume of the cylinder is

v2 = \pi.3 {}^{2} .13 = 117\pi

the surface area is

s2 = 2\pi.3.13  + 2\pi.3 {}^{2} = 96\pi

so the volume of this figure is

v = v1 + v2 = 18\pi + 117\pi = 135\pi

the surface area of this figure is

s = 9\pi + 96\pi = 105\pi

7 0
3 years ago
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