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PtichkaEL [24]
3 years ago
15

What is the rule for the reflection?

Mathematics
1 answer:
Sliva [168]3 years ago
7 0
Hey user!

your answer is here...

laws ( rules ) of reflection are :-

• angle of incidence is equal to angle of reflection.

• the incident ray, Normal ray and reflected ray all lie in same plane.

cheers!!

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H(x+1)=x^2-4 evaluate function by substuting x+1
zalisa [80]

Answer:

h(x + 1) = (x+3)(x-1)

Step-by-step explanation:

Simply plug the value of x+1 into the equation for x.

h(x) = x^2 - 4

h(x + 1) = (x + 1)^2 - 4

h(x + 1) = x^2 + 2x + 1 - 4

h(x + 1) = x^2 + 2x - 3

h(x + 1) = (x+3)(x-1)

Cheers.

8 0
4 years ago
Read 2 more answers
Grandma baked 1.5 times as many pancakes as waffles. After she baked 45 more waffles, and her grandchildren ate 12 pancakes, the
Komok [63]

Step-by-step explanation:

let x represent the no of pancakes,

she baked 1.5 times pancakes more than waffles,

so from this, no of pancakes = 1.5x,

then she baked more 45 waffles,

no of waffles = (x +45)

so you had 1.5x pancakes and the children ate 12 out of them. the no of pancakes has then been reduced by 12.

thus, no of pancakes = ( 1.5x -12 )

now they see that they have 17 more waffles that pancakes left. this means that :

no of waffles - no of pancakes = 17

(x+45) - (1.5x - 12) = 17

x - 1.5x + 45 + 12 = 17

x = -50 / -0.5

x = 100

hence, there were 100 waffles initially.

hope you understand this,

-s.

4 0
3 years ago
2 very easy questions for 40 points
Varvara68 [4.7K]
4.a)2x+10 >27
4.b) 27-10= 17
17/2=8.5
3.a) 40-2x>7
3.b) 7-40=-33
-33/-2=16.5
So 16 students in her class
7 0
3 years ago
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strojnjashka [21]

Answer:

24.4

Step-by-step explanation:

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3 years ago
Oscar is washing cars to earn extra money.Goal is to wash 45 cars. he can wash 5 cars per day. Which equation can he use to find
Rama09 [41]

d is grater than or equal to 5 divided by 45

8 0
3 years ago
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