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worty [1.4K]
2 years ago
9

Can someone help again please

Mathematics
2 answers:
Irina-Kira [14]2 years ago
8 0

Answer:

192km^2

Step-by-step explanation:

Well there are 5 surfaces

1) The back one

10km*6km=60km^2

2) the square

(6km)^2=36km^2

3) the two triangles

2(6km*8km/2)=48km^2

4) the front one

6km*8km=48km^2

add all up and get

192km^2

neonofarm [45]2 years ago
4 0

Answer: 192 square kilometers

Step-by-step explanation:

Two triangular Sides A=bh/2 8×6/2=24

So add two of them. : 48

Back side 10 × 6 = 60

Top 6×6=36

Front 6×8=48

Total: 48+60+36+48=192

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Breann solved the system of equations below. What mistake did she make in her work? 2x + y = 5 x − 2y = 10 y = 5 − 2x x − 2(5 −
goldfiish [28.3K]

Answer:

No mistake

Step-by-step explanation:

2x + y = 5

x - 2y = 10

y = 5 - 2x

x - 2(5 - 2x) = 10

x - 10 + 4x = 10

5x - 10 = 10

5x = 20

x = 4

2(4) + y = 5

y =  -3

She made no mistake

You can check by plugging in x = 4 and y = -3 into the original equations . They fit exactly.


5 0
3 years ago
At camp last summer, the ratio of boys to girls was 5:4. If there was a total of 90 campers, how many girl campers are there? ex
LekaFEV [45]

Answer:

40 girls

Step-by-step explanation:

if you multiply 5 times 10, then you have to multiply the other side by 10 too. So 5 times 10 equals 50, and 4 times 10 equals 40.

40+50+=90.

4 0
3 years ago
The formula P = 6s gives the formula for the perimeter of a regular hexagon with side length s. What is the perimeter of a regul
stellarik [79]
YOU NEED A BETTER SCHOOL
6 0
3 years ago
What is the Slope?<br> 4x + y = 1
Irina-Kira [14]

Answer:

m=-4

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Calculate the slope of a line that passes through the points (-4,7) and (-1,3)
zmey [24]

Answer:

The answer is

-  \frac{4}{3}  \\

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

m =  \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(-4,7) and (-1,3)

We have

m =  \frac{3 - 7}{ - 1 -  - 4}  =  \frac{ - 4}{ - 1 + 4}  =   -  \frac{4}{3}  \\

We have the final answer as

-  \frac{4}{3}  \\

Hope this helps you

4 0
3 years ago
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