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Andreas93 [3]
3 years ago
15

Please help! Will give brainliest to correct answer

Mathematics
1 answer:
Taya2010 [7]3 years ago
5 0

We can solve it through proportionality or ratios

  • 2 lamps required to create 4signals

Let lamps required to create 60signals be x

Now

\\ \sf\longmapsto 2:4=x:60

\\ \sf\longmapsto \dfrac{2}{4}=\dfrac{x}{60}

\\ \sf\longmapsto 4x=60(2)

\\ \sf\longmapsto 4x=120

\\ \sf\longmapsto x=\dfrac{120}{4}

\\ \sf\longmapsto x=30

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What is the range of the function f(x) = 12 − 3x for the domain {-4, -2, 0, 2, 4}?
Sphinxa [80]

Answer:

{24, 18, 12, 6, 0} is the range of the above function

Step-by-step explanation:

solution:

let, x= -4

f(-2) = 12-3*(-2)

= 12+12

=24

let,x= -2

f(-2) = 12-3*(-2)

=12+6

18

let,x =0

f(0)= 12-3*0

=12-0

=12

let,x=2

f(2) = 12-3*2

=12-6

=6

let,x=4

f(4) = 12-3*4

=12-12

=0

4 0
3 years ago
5 The cost of an adult's ticket into a theme park is $a.
natta225 [31]

Answer:

<u>Total Cost (in dollars) = a + c</u>

Step-by-step explanation:

<u>Algebra</u>

When mathematics quantities are generalized into letters or variables, then we are dealing with algebra.

We are said the cost of an adult's ticket into a theme park is $a and a child's ticket costs $c. Since both quantities are unknown, we must treat them as variables and use the same logic procedure to solve the problem as if they were numbers.

The total cost for an adult and a child is the sum of both individual costs, thus

Total Cost (in dollars) = a + c

4 0
3 years ago
A rectangular prism with a length of 14 meters, width of 5 meters, and height of 4.5 meters. A square pyramid with a base of 8 f
Lubov Fominskaja [6]

Answer:

315 and 128

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
3/5 of a Conductors Club went on the last camping trip.If 39 people went on the trip, how many are in the club?
Lerok [7]
The answer is 65 people in the club.
4 0
4 years ago
What is the measure of X? <br> angles are not necessarily drawn to scale
Schach [20]

Answer:

xº=71º

Step-by-step explanation:

Take the triangle BDH

Once the sum of interior angles of a triangle is 180º:

40º+31º+yº=180º

71º+yº=180º

yº=109º

Once yº and xº are supplementary angles (add up to 180º):

yº+xº=180º

109º+xº=180º

xº=71º

5 0
3 years ago
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