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3 years ago

15

Help plzzzzzzzzzzzzzzz

1 answer:

Helga [31]3 years ago

4 0

Answer: 3173 mm² (Answer C)

Area of the bottom triangle = 1/2 x base x height
Area of the bottom triangle = 1/2 x 19 x 23 = 218.5mm²

Area of the top triangle = area of the bottom triangle
Area of the top triangle = 218.5mm²

Area of the 3 side rectangles = (23 x 38) + (19 x 38) + (30 x 38)
Area of the 3 side rectangles = 2736 mm²

Total Surface area = 218.5 + 218.5 + 2736 = 3173 mm²

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Answer: Total Surface area = 3173 mm²
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Can you guys help me please.

Norma-Jean [14]

Answer:

question 1: answer is 4

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Step-by-step explanation:

6 0

3 years ago

8x + 34. What does X equal

rosijanka [135]

Answer: $x=-4.25$

Step-by-step explanation:

First you put it in to y= mx+b form.

$0=8x+34$

Then you subtract 34 from both sides

$-34=8x$

Then you divide 8 from both sides

Leaving you with

$x=-4.25$

4 0

3 years ago

I need help ASAP ASAP plz someone help me plz plz plz

anyanavicka [17]

Answer:

Rate of change = 0.5

Initial value = 120

Step-by-step explanation:

(10 , 125) ; (30 , 135)

Slope = $\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

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4 0

3 years ago

Find x and y please!!! I need help!!

jonny [76]

Answer

Step-by-step explanation:

(15x-8y)=52

180=90+52+x

x=38

System of equations:

15x-8y=52

6x+14y=38

y=-6.5+15/8x

6x+14(-6.5+15/8x)=38

6x-91+26.25x=38

32.25x=129

x=4

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60-8y=52

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7 0

3 years ago

Algebra applications: find the value of x and y

Inga [223]

Answer : The value of x and y is 8 and 10 respectively.

Step-by-step explanation :

As we known that if two parallel lines are cut by a transversal line then consecutive interior angles are supplementary.

From the given figure we conclude that:

$5x-y+150=180$ ...........(1)

$5x-y=180-150$

$5x-y=30$ ............(2)

$5x+y+130=180$ ...........(3)

$5x+y=180-130$

$5x+y=50$ ...........(4)

Now we adding equation 2 and 4, we get the value of x.

$5x-y+5x+y=30+50$

$10x=80$

$x=8$

Now we are putting the value of x in 4, we get the value of y.

$5x+y=50$

$5(8)+y=50$

$y=50-40$

$y=10$

Therefore, the value of x and y is 8 and 10 respectively.

3 0

3 years ago