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3 years ago

Simplify:

Mathematics

2 answers:

Rasek [7]3 years ago

7 0

Answer:

here you go

Step-by-step explanation:

1.)50a2−39a+38

2.)2r2+2r−10

3.)−17y+17z+24

4.)8.1q−5.5

5.)−39x2+17x

juin [17]3 years ago

4 0

Answer:

1.)50a2−39a+38

2.)2r2+2r−10

3.)−17y+17z+24

4.)8.1q−5.5

5.)−39x2+17x

Step-by-step explanation:

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Direct variation means that changes in x will result to changes in y. If x increase, y also increases and vice versa.

y = kx
k = y / x

y = 45 ; x = 40

k = 45/40
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3 years ago

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Solve for x. Round to the nearest tenth of a degree, if necessary.

monitta

Answer:

49.6°

Step-by-step explanation:

tangent = opposite / adjacent
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3 years ago

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Vinil7 [7]

Answer:

Step-by-step explanation:

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2 years ago

The seating capacity of a theater is 250. Tickets are $3 for children and $5 for adults. The theater must take in at least $1100

maksim [4K]

Answer:

x + y ≤

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Step-by-step explanation:

Given:

Seating capacity of theater = 250

Cost of each child ticket = $3

Cost of each adult ticket = $5

Cost per performance = $1100 at least

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System of inequalities

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y = Number of adult tickets

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3 years ago

Retro Rides is a club for owners of vintage cars and motorcycles. Every year the club gets together for a ride. This year, 53 ve

kari74 [83]

21 cars, 32 motorcycles.
create a system of equations using x for cars and y for motorcycles.
$\left \{ {{x+y=53} \atop {4x+2y=148}} \right.$
multiply the top equation by 2 to prepare for elimination method
$\left \{ {{2x+2y=106} \atop {4x+2y=148}} \right.$
subtract terms
$\left \{ {{2x+2y=106} \atop {-4x-2y=-148}} \right. = (-2x = -42)$
divide both sides by negative 2 to solve for x
x =21
plug in x into original equation to solve for y.
21 + y = 53
subtract both sides by 21
y=32

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3 years ago