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jeyben [28]
3 years ago
15

(x + 40): 12 = 78 = 88 This exercise is resolved by the inverse method

Mathematics
1 answer:
pentagon [3]3 years ago
4 0
(x+40):12=88-78
(x+40):12=10
x+40=10*12
x+40=120
x=120-40
x=80
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Please help... I don't understand this
vlada-n [284]
We know that

<span>the rotation of a solid does not modify the values of the internal angles of the solid
</span>therefore
interior angle after 90° rotation=interior angle before 90° rotation
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6 0
3 years ago
Helppppp idk how to do that?​
frozen [14]
Answer: a). 136 degree. b). A kite

Explanation:

360 = POR + OPT + ORT + 44

OPT = ORT = 90 (line TP and TR tangent to the circle)

360 = POR + 90 + 90 + 44
POR = 360 - 224
POR = 136

B). OPTR is a kite because OP = OR and TP = TR

Definition of a kite:

A quadrilateral whose 4 sides can be grouped into two pairs of equal sides that are adjacent to each other.
3 0
3 years ago
What is the surface area of this composite solid? Show your work.
Inga [223]

Answer:

357.5ft^3

Step-by-step explanation:

solve for bottom reticular prism

8 * 10 * 4

320ft^3

solve for top triangular prism

((3*5)/2)*5

37.5ft^3

add top and bottom  

320+37.5

357.5ft^3

4 0
2 years ago
if two angle are supplementary, then they have a sum of 180.is the inverse true?​ help me plsssssssss
allsm [11]
Yes the inverse is true
4 0
3 years ago
I just need x and y please
Alenkinab [10]

Answer:

Step-by-step explanation:

Since you know both triangles are congruent, you can say that the corresponding sides are equal. For example, you can say:

17x+3 = 57

because they are corresponding sides of both triangles. To further solve the equation:

17x = 54 --> x = 54/17 --> <u>3 3/17</u>

Same thing for Y. lines PX and FD are congruent, so, you can say:

4y-3 = 54

4y=57

<u>y= 14.25</u>

6 0
3 years ago
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