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Agata [3.3K]
3 years ago
9

50 POINTS!!

Mathematics
2 answers:
Andre45 [30]3 years ago
6 0

Answer:Triangle A: 38 degrees

Triangle B: Unknown (not enough information)

Triangle C: Unknown (not enough information)

Triangle D: 70 degrees

Triangle E: 40 degrees

Step-by-step explanation:

kogti [31]3 years ago
6 0

Answer:

Answer:

Triangle A: 38 degrees

Triangle B: Unknown

Triangle C: Unknown

Triangle D: 70 degrees

Triangle E: 40 degrees

Step-by-step explanation:

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HELP ASAP. find the area of a rectangle with 7/8 length and 4/5 width. simplify if possible​
kondaur [170]

Answer:

7/10

Step-by-step explanation:

To find the area of a rectangle you need to mulitiply the length and the width.

Length= 7/8.

Width= 4/5

7/8 × 4/5= 7/10.

5 0
2 years ago
If f(x) = 5x2 + 3, find f(-2)<br> =
Brut [27]

Answer:To find this, all you have to do is plug in 3 where x is in the equation, which gives you this:

f

(

3

)

=

5

(

3

)

−

2

. From there, just find the value:

5

(

3

)

−

2

=

13

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Step-by-step explanation: 13 is the answers sorry i looks like that

8 0
2 years ago
Find the surface area of the prism. Enter your answer in the box. A rectangular prism with dimensions 6 meters by 3 meters by 12
e-lub [12.9K]

Given:

Dimensions of a rectangular prism are 6 meters by 3 meters by 12 meters.

To find:

The surface area of the prism.

Solution:

The surface area of a rectangular prism is:

A=2(lb+bh+hl)

Where, l is length, b is breadth and h is height.

Putting l=6,b=3,h=12, we get

A=2(6\times 3+3\times 12+12\times 6)

A=2(18+36+72)

A=2(126)

A=252

Therefore, the surface area of the prism is 252 square meters.

3 0
3 years ago
2.25meter long and 1.8 meters wide what is the area
Alexxandr [17]
I'm assuming that you're talking about the dimensions of a rectangle. To find the area, you can multiply the length (2.25 meters) by the width (1.8 meters).

2.25*1.8=4.05
The area would be 4.05 sq. meters
3 0
3 years ago
Rosa's best time in a race is two seconds faster than her second-best time. Her second-best time is 1 1/4 times her best time. W
Svetradugi [14.3K]
B) 10 seconds. 10/8=1 1/4
8 0
3 years ago
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