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vesna_86 [32]
3 years ago
10

Y=f(x)=-5x find f(x) when x=3

Mathematics
1 answer:
BartSMP [9]3 years ago
8 0

Answer:


Step-by-step explanation:

y=f(x)=-5x

since x=3 just replace x with 3

y=f(x)=-5(3)

y=f(x)=-15

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Estimate the time it would take you to drive 361 miles at 42 miles per hour. Round to the nearest hour.
polet [3.4K]

Answer:

It would take you 9 hours

Step-by-step explanation:

Speed (s) = Distance (d) / Time (t)

given that; Speed = 42 miles/hour

                 Distance = 361 miles

42 miles/hour = 361 miles / Time (t)

Time (t) * 42 miles/hour = 361 miles

Time (t) = 361 miles / 42 miles/hour

Time (t) = 8.59 hours

             ≈ 9 hours (to the nearest hour)

8 0
3 years ago
At Saturday night's football game there were 18 less fans than half the fans at Friday night's game. There were "x" fans at Frid
TiliK225 [7]

Answer:

\boxed{ \frac{ 1}{ 2}x - 18}

Step-by-step explanation:

          x = fans at Friday's game

       ½x = half the fans at Friday's game

½x – 18 = 18 fewer than half the fans at Friday's game

\boxed{ \frac{ 1}{ 2}x - 18} = fans at Saturday's game.

4 0
3 years ago
Eddie scored at least 27 point more than half of what Duncan scored.eddie score 58points. Wright an inequality that could be sol
Jobisdone [24]

For this case we have:

Let:

x: number of points scored by Duncan

y: number of points scored by Eddie

We have:

y\geq27 +\frac{x}{2} (1)

y = 58 (2)

Substituting (2) in (1):

58\geq27+\frac{x}{2}

58-27\geq\frac{x}{2}

31\geq\frac{x}{2}

2*31\geqx\\62\geq x

Thus, Duncan could have scored a maximum of 62 points.

Answer:

x\leq62 points scored by Duncan.


5 0
4 years ago
HELP PLEASE
makkiz [27]

Answer:

rectangle, square

Step-by-step explanation:

A rectangle always has 4 congruent angles. A square is a rectangle, so a square always has 4 congruent angles.

A parallelogram and a rhombus may or may not have 4 congruent angles.

Answer: rectangle, square

6 0
3 years ago
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How can you find the area of a polygon that is not one for which your know an area formula? I dont get it at all some one help m
miskamm [114]
"Break into triangles, then add. In the figure on the right, the polygon can be broken up into triangles by drawing all the diagonals from one of the vertices. If you knowenough sides and angles to find the area of each, then you can simply add them up to find the total." -<span>www.mathopenref.com/polygonirregulararea.html</span>
4 0
3 years ago
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