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never [62]
3 years ago
15

Name the congruent triangles and justify the reason for congruence.

Mathematics
1 answer:
svet-max [94.6K]3 years ago
5 0

Answer:

a) ABC is congruent to EDF by SSS

Step-by-step explanation:

if you flip EDF over horazontally and move it to the left a bit, it will show the same shape as ABC

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Yoo i need help !!! its math and i havent learned it yet
BlackZzzverrR [31]

Answer:

{f}^{ - 1} (x) = 9x + 18

Step-by-step explanation:

f(x) =  \frac{1}{9}x - 2

y = \frac{1}{9} x - 2

x =  \frac{1}{9}y - 2

x + 2 =  \frac{1}{9}y

9x + 18 = y

{f}^{ - 1} (x) = 9x + 18

4 0
3 years ago
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A body moves s metres in a time t seconds so that s = t3 – 3t2 + 8. Find:
Lady bird [3.3K]

Using derivatives, it is found that:

i) v(t) = 3t^2 - 6t

ii) 9 m/s.

iii) a(t) = 6t - 6

iv) 6 m/s².

v) 1 second.

<h3>What is the role of derivatives in the relation between acceleration, velocity and position?</h3>
  • The velocity is the derivative of the position.
  • The acceleration is the derivative of the velocity.

In this problem, the position is:

s(t) = t^3 - 3t^2 + 8

item i:

Velocity is the <u>derivative of the position</u>, hence:

v(t) = 3t^2 - 6t

Item ii:

v(3) = 3(3)^2 - 6(3) = 27 - 18 = 9

The speed is of 9 m/s.

Item iii:

Derivative of the velocity, hence:

a(t) = 6t - 6

Item iv:

a(2) = 6(2) - 6 = 6

The acceleration is of 6 m/s².

Item v:

t for which a(t) = 0, hence:

6t - 6 = 0

6t = 6

t = \frac{6}{6}

t = 1

Hence 1 second.

You can learn more about derivatives at brainly.com/question/14800626

7 0
2 years ago
andres is 1.65 meters tall. At 2 p.m., he measures the length of a tree's shadow to be 40.15 meters. He stands 35 meters away fr
almond37 [142]

Answer:

Step-by-step explanation:

3 0
3 years ago
20% of the spectators at a tennis match were women. 10% of them were girls, 30% are boys, and the remaining 3,600 spectators are
Finger [1]
So 100% - 20% - 10% - 30% = 40%
40% of people were men. It says that there were 3600 men and in order to find the total amount of people, do 3600/40% or 3600/.4
Which equals 9000
4 0
4 years ago
What is a theorem called before it is proven?
slega [8]
A postulate is an assumption we use for mathematical reasoning; it isn't yet proven. once it's proven, it becomes a theorem.
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4 years ago
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