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pashok25 [27]
2 years ago
8

If < D is a right angle and < E is a right angle, and you said that < D is congruent to < E, the reason would be ___

_. Select one: a. Supplementary Angles are congruent b. All right angles are congruent c. Complementary Angles are congruent
Mathematics
1 answer:
SVEN [57.7K]2 years ago
5 0

Answer:

(B)All right angles are congruent

Step-by-step explanation:

Given that:

\angle D$ is a right angle, and\\\angle E$ is a right angle\\\\\angle D=90^\circ\\\angle E=90^\circ\\$Therefore: \angle D \cong \angle E

The reason for this congruency is that both are right angles and in fact, all right angles are congruent.

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Find the value of below algebriac expression for x=2,y=-1 and z=2 i. 4x2−3y2+5z24x2−3y2+5z2 ii. 3x3−2x(4yz+5x2)3x3−2x(4yz+5x2) i
Advocard [28]

Answer:

i. 33

ii. 1488

iii. 65

Step-by-step explanation:

i. 4x² − 3y² + 5z²

Putting the values x=2, y=-1 and z=2

4(2)² − 3(-1)² + 5(2)²

4×4 − 3×(1)² + 5×(4)

(16) -  (3×1) + (20)

16 -  3+ 20

36 - 3

33

ii. 3x³ − 2x(4yz+5x²)

Putting the values x=2, y=-1 and z=2

[3(2)³ − 2×2(4×(-1)×2 + 5×(2)²)]

[3(8)³ − 2×2(-8 + 5×4)]

[3 ×512 -  2×2(-8 +20)]

[1536 - 4(12)]

[1536 - 48]

1488

iii. 1−4x(yz+3xy)

Putting the values x=2, y=-1 and z=2

[1 - 4 × 2((-1)×2 + 3×2×(-1))]

[1- 8(-2 + (-6))]

[1- 8 (-2 -6)]

[1 - 8(-8)]

[1 +64]

65

8 0
2 years ago
Question 7 of 15
IgorC [24]

Answer:

4 is in the tenths place. 9 is in the ones. 5 is in the hundredths. 3 is in the thousandths.

4 0
2 years ago
I really need help anybody
Brut [27]
- 4(8x-3)/4 =76/4

-8x+3=76/4

-8x+3=19

-8x=16

X=2

I hope this helps.
7 0
3 years ago
The volume of a cylinder is 400x cm. The radius of the base of the cylinder is 4 cm. What is the height of the cylinder
irina1246 [14]

Answer: 8cm

Step-by-step explanation:

V=\pi r^2h

Solve for h;

h=\frac{V}{\pi r^2}

h=\frac{400cm^3}{(3.14)(4cm)^2}

h=7.96\\h=8

3 0
2 years ago
Simplify.<br> 7/8 x 1 1/3<br><br> A. 7/24<br> B. 28/24<br> C. 1 1/6<br> D. 1 7/24
Amiraneli [1.4K]
It’s A it’s honestly a simple equation just can’t explain it in typing
4 0
2 years ago
Read 2 more answers
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