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Misha Larkins [42]
3 years ago
15

I need help finding the surface area of the pyramid

Mathematics
1 answer:
gayaneshka [121]3 years ago
5 0
It would be 60 mm ( i think )
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Please help asap 40 pts
lakkis [162]

Answer: D

Step-by-step explanation:

It seems there is two ways to solve this, remember that this is just one of them.

The triangle to the left is an isosceles triangle by definition. It is given that two of its sides are equal.

The angles opposite the equal sides in an isosceles triangle are congruent. It is given that one of these angles is 70 degrees, so the other one must be 70 degrees as well.

This angle is opposite to Angle Y. Vertical angles are congruent, so Angle Y must be 70 degrees.

D is the answer.

7 0
3 years ago
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Sergeu [11.5K]

The lengths of HJ and JK are 50 and 72 respectively.

Given: J is between H and K. the length of HJ=2x+4, JK=3x+3, and HK=22.

The line HJ and JK are  collinear then the total length is given as: HJ+JK=HK

substitute values

⇒ (2x+4)+(3x+3)=22

⇒ 5x+7=22

⇒ 5x=22-7

⇒ 5x=15

⇒ x=3

Thus, the length of HJ is (2x+4)=(2*3+4)=10

And the length of JK is (3x+3)=(3*3+3)=12

Learn more about collinear lines here: brainly.com/question/27943430

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Find the equation of the axis of symmetry of the parabola.
Stolb23 [73]

Answer:

Just substitute 0 instead of f (x),therefore

x { }^{2}  - 12x + 36 \\ x = 6

The answer option is C

7 0
3 years ago
I need help plz help me!!!!
AlexFokin [52]

Answer:

5/8 =)

Step-by-step explanation:

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X= 4.3125 or x= 4.313
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