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olya-2409 [2.1K]
3 years ago
9

Equation Given:

alt="h(t)=-4.9t^{2}+358" align="absmiddle" class="latex-formula">
Question: When is the penny at a height of 300 meters above the ground?
Mathematics
1 answer:
Vilka [71]3 years ago
4 0

Answer:

At 3.44 seconds, the penny is at a height of 300 meters above the ground.

Step-by-step explanation:

Basically, we have to solve an equation here:

-4.9t^{2} + 358 = 300

Hence,

-4.9t^{2} = 300 - 358

t^{2} = \frac{-58}{-4.9}

t = 3.44

Hence, at 3.44 seconds, the penny is at a height of 300 meters above the ground.

Hope this helped!

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A scale drawing for a backyard is shown below.
scZoUnD [109]

The area of real patio is 50m².

Step-by-step explanation:

Given,

Length of patio = 3 cm

Width of patio = 6 cm

According to scale =

3 cm = 5m

1 cm = \frac{5}{3}\ m

6 cm = \frac{5}{3}*6 = 10\ m

Real length of patio = 5 m

Real width of patio = 10 m

Area = Length*width

Area=5*10\\Area=50\ m^2

The area of real patio is 50m².

Keywords: area, multiplication

Learn more about areas at:

  • brainly.com/question/13086598
  • brainly.com/question/13087541

#LearnwithBrainly

3 0
3 years ago
Laura rode her bike 3.5 miles. Shanay rode her bike 4 miles. How many more feet did Shanay ride her bike then Laura?
g100num [7]

Answer:

I am pretty sure the answer is 2640 feet.

Step-by-step explanation:

8 0
3 years ago
The graph of a sinusoidal function has a minimum point at (0,3)(0,3)left parenthesis, 0, comma, 3, right parenthesis and then in
laiz [17]

Answer:

the answer is left,5 right 6 and left 7

Step-by-step explanation:

hope it helps

5 0
2 years ago
Name the line and plane shown in the diagram. A.AB and plane ABD B.BA and plane DC C.AC and plane ABD D.AB and plane DA
elena-14-01-66 [18.8K]

Answer: The line is AB and the plane is ABD, the first option is the correct one.

Step-by-step explanation:

Ok, first some definitions.

A line is any line that crosses two colinear points. Particularly, you can see in the graph that the line crosses through A and B, so the line is AB.

A plane needs 3 non-colinear points (if the points where colinear, then the points may define a line). Other definition of plane is "a line and a point that is not in the line"

So, if our line is AB, then the possible planes are:

ABC and ABD.

then the correct option is:

Line AB and plane ABD, so the correct option is the first one.

6 0
3 years ago
A luxury liner leaves a port on a bearing of 110 degrees and travels 8.8 miles. It then turns due west and travels 2.4 miles. Ho
myrzilka [38]

Answer:

Distance= 6.6 miles

Bearing= N 62.854°W

Step-by-step explanation:

Let's determine angle b first

Angle b=20° (alternate angles)

Using cosine rule

Let the distance between the liner and the port be x

X² =8.8²+2.4²-2(8.8)(2.4)cos20

X²= 77.44 + 5.76-(39.69)

X²= 43.51

X= √43.51

X= 6.596

X= 6.6 miles

Let's determine the angles within the triangle using sine rule

2.4/sin b = 6.6/sin20

(2.4*sin20)/6.6= sin b

0.1244 = sin b

7.146= b°

Angle c= 180-20-7.146

Angle c= 152.854°

For the bearing

110+7.146= 117.146

180-117.146= 62.854°

Bearing= N 62.854°W

8 0
3 years ago
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