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olga2289 [7]
3 years ago
8

Whats the area of a triangle with a base length of 3 units and a height of 4 units

Mathematics
1 answer:
WINSTONCH [101]3 years ago
8 0

area =  1/2 x b x h

1/2 x 3 x 4 = 6 units

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Describe the piecewise function below by evaluating the function for given values of the domain
tekilochka [14]
We have a piecewise function.
 Therefore, to find the function, we must evaluate each domain separately.
 We have then:

 For x  \leq  -2:
 The function for this domain is:
 y = -3


 
For -2 \ \textless \  x  \leq  2:
 
The function for this domain is:
 y = mx + b

 Where,
 b = -3

 m = (y2 - y1) / (x2 - x1)

 m = (1 - (-7)) / (2 - (-2))
 m = (1 + 7) / (2 + 2)

 m = 8/4

 m = 2
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 y = 2x - 3


 
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4 0
3 years ago
Use elimination to solve only number 7
anzhelika [568]
So the vs eliminate each other which leaves the ws and the 1,7. Then you add the 2 ws to get 2w and then add the numbers to get 2w=8, then divide 8 by 2 and you get w=4
7 0
3 years ago
Help me with this question, please!
AURORKA [14]

Answer:

3,432 m²

Step-by-step explanation:

The amount of aluminum in square meters needed to make the mailboxes = 1863(surface area of each mailbox)

Surface area of each mail box = ½(surface area of cylinder) + (Surface area of rectangular prism/box - area of the surface of the box that joins the half-cylinder)

✔️Surface area of ½-cylinder = ½[2πr(h + r)]

r = ½(0.4) = 0.2 m

h = 0.6 m

π = 3.14

Surface area of ½-cylinder = ½[2*3.14*0.2(0.6 + 0.2]

= 0.628(0.8)

Surface area of ½-cylinder = 0.5024 m²

✔️Surface area of the rectangular box/prism = 2(LW + LH + WH)

L = 0.6 m

W = 0.4 m

H = 0.55 m

Surface area = 2(0.6*0.4 + 0.6*0.55 + 0.4*0.55)

Surface area of rectangular box = 1.58 m²

✔️Area of the surface joining the half cylinder and the box = L*W = 0.6*0.4 = 0.24 m²

✅Surface area of 1 mailbox = (0.5024) + (1.58 - 0.24)

= 0.5024 + 1.34

= 1.8424

Amount of aluminum needed to make 1863 mailboxes = 1863 × 1.8424 = 3,432.3912

= 3,432 m²

8 0
3 years ago
The following statements is are true regarding the figure above​
Andreyy89

Answer:

a and b

Step-by-step explanation:

it is a point and a point is a zero demensional object.

7 0
3 years ago
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If 78 sit-ups is done in 2 minutes how many can be done in 5 minutes
Oksanka [162]

Answer:

195

Step-by-step explanation:

78/2*5

4 0
3 years ago
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