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coldgirl [10]
3 years ago
13

I really need help with this problem!!! Can someone help!!!! Please!!!

Mathematics
1 answer:
Alex_Xolod [135]3 years ago
5 0

9514 1404 393

Answer:

  (a)  31.5 in²

Step-by-step explanation:

The area of a rhombus is half the product of the lengths of the diagonals.

  A = 1/2(d1)(d2)

  A = (1/2)(7 in)(9 in) = 31.5 in²

There are 31.5 in² of space in the rhombus for engraving.

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Shaun bought a movie tickets for $11.50 each and y
Ymorist [56]

Answer:

11.50 + 4.50y

6 0
3 years ago
Is this a function graph
Nesterboy [21]

Answer:

No

Step-by-step explanation:

No, it's not a function as it fails the vertical line test

7 0
3 years ago
Can someone help answer this question Ive tried a lot and couldnt do it.
aleksklad [387]

Answer:

1222

Step-by-step explanation:

You have a triangular prism on top of a rectangular prism.  The surface area is the sum of the areas of the exposed faces.

Starting with the triangular prism, the surface area is the area of the two triangular bases plus the area of the two rectangular sides (the bottom rectangular face is ignored).

A = ½ (10) (12) + ½ (10) (12) + (13) (9) + (13) (9)

A = 60 + 60 + 117 + 117

A = 354

The surface area of the rectangular prism is the area of the two rectangular bases (front and back), plus the two walls (left and right), plus the bottom, plus the top (minus the intersection with the top prism).

A = (19) (11) + (19) (11) + (9) (11) + (9) (11) + (19) (9) + (19) (9) − (10) (9)

A = 209 + 209 + 99 + 99 + 171 + 171 − 90

A = 868

So the total surface area is:

354 + 868

1222

5 0
3 years ago
I don’t really understand how to do this!!! Help plz
patriot [66]

Answer:

4

Step-by-step explanation:

It works with the second one

4 0
3 years ago
Does anyone know this need help
madreJ [45]

Answer:

32 m

Step-by-step explanation:

The distance across the river is give as x and we are interested in finding the value of x.

Both the triangles are similar by AA Postulate.

Therefore,

20/x = 10/16 (by c.s.s.t.)

2/x = 1/16

x = 16*2

x = 32 m

8 0
3 years ago
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