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4 years ago

PLEASE HELPPP!!!!!!!!!!

Mathematics

1 answer:

ratelena [41]4 years ago

4 0

Answer:

the answer is A

Step-by-step explanation:

if you are really stuck just go through each possible answer to see if its right

here is some help for solving:

area is equal to length times width or A = L x W

perimeter is equal to length plus width plus length plus width or L+W+L+W

perimeter is just adding up all the sides of the square or rectangle

so if you try with answer a you get:

2 x 6 = 12 and 2 + 6 + 2 + 6 = 16

the answer is A

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Nick went canoeing on the river he traveled 1 mile in 17 minutes.at this rate,how far will he travel in an hour and 25 minutes

dem82 [27]

9514 1404 393

Answer:

5 miles

Step-by-step explanation:

An hour and 25 minutes is 85 minutes. Using the given information we can find the distance d with the proportion ...

$\dfrac{\text{distance}}{\text{time}}=\dfrac{d}{85\text{ min}}=\dfrac{1\text{ mi}}{17\text{ min}}\\\\d=\dfrac{85\text{ min}}{17\text{ min}}(1\text{ mi)}\qquad\text{multiply by $85$ min}\\\\d=5(1\text{ mi})\qquad\text{simplify}\\\\d=\boxed{5\text{ mi}}$

In 1 hour and 25 minutes, Nick will travel 5 miles.

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3 years ago

A tree casts a shadow 9 meters long. At the same time, a building 54 meters tall casts a shadow 21 meters long. To the nearest m

Mademuasel [1]

Answer:

G.) 23 meters

Step-by-step explanation:

makeing it into a proportion would be the easiest -

9/x = 21/54

21x = 486

/21 /21

x = 23.14

rounded out would be x = 23 meters

hope this helps!!

5 0

3 years ago

Find the sum of the G.P,16^2+17^2+18^2+...+25^2

artcher [175]

Answer:

hello :

note : 1²+2²+3²+........+n² = n(n+1)(n+2)/6

Step-by-step explanation:

let : S = 1²+2²+3²+......+25²

A = 16²+17²+18²+...+25²

B = 1²+2²+3²+......+15²

S = (1²+2²+3²+....+15²) + (16²+17²+18²+...+25²)

calculate : S for : n = 25

S = 25(26)(27)/6 = 2925

calculate : B for : n = 15

B = 15(16)(17)/6 = 680

so : S = B + A

A = S - B = 2925 - 680 = 2245

5 0

3 years ago

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Please give full solutions <br>√8281

wel

Answer:

the answer is 91

Step-by-step explanation:

6 0

3 years ago

A window has the shape of a rectangle with a semi circle at the top. Find the approximate area of the window using the dimension

miv72 [106K]

First, let's find the area of the semi-circle.
Area of a circle = π*r²
Looking at the rectangle, the diameter for the circle is 2 ft. Since we need the radius though, divide the diameter by 2 to get the radius.
r = 1
A = π * 1²
A = π * 1
A = π

But since it's a semicircle, you need to divide that area by 2.
3.14/2 = 1.57

The area of the semi-circle is 1.57.

Area of a rectangle = lw
l = 2
w = 4
A = 2 * 4
A = 8

The area of the rectangle is 8.

Now add those together to get the area of the entire figure.

1.57 + 8 = 9.57

The figure is about 9.57 square feet.

8 0

3 years ago

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