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Gnesinka [82]
3 years ago
7

A weather balloon is launched from the ground at a spot 250 yards from a 65 foot royal palm tree. What is the minimal angle of e

levation at which the balloon must take off in order to avoid hitting the tree? Assume that the balloon flies in a straight line and the angle of elevation stays constant.
Mathematics
1 answer:
shutvik [7]3 years ago
3 0

Answer:

5°

Step-by-step explanation:

Mean of the data set is one of the most commonly used measures of central tendency. Basically, it means the average value of the data set. For finding it, one doesn't have to arrange the data in order. All it takes is to add them all together and divide that by the number of the data. It can be mathematically written as:

(x1 + x2 + x3 + ..... + xn) / n

This obviously means that Ashrita did the best job in calculating the mean of this data set. Let us mark the launching point with A, bottom of the tree with B and top of the tree with C.

In this way, we get a right triangle whose sides are AB = 250 yards (which is 750 feet) and BC = 65 feet.

We want to know the angle CAB (the angle at point A) and we can determine this using trigonometric functions.

Since we know the length of the opposite and the adjacent sides to this angle, we will use tangent of an angle (tan).

tan = opposite side / adjacent side

tan = 65 / 750 = 0.087

Now, knowing the tan of an angle, we can find the angle using the arctan function:

arctan (0.087) = 4.97° which we can round to 5°.

That means that, moving in a straight line and at constant angle, balloon needs to have an angle of elevation of at least 5° in order to avoid hitting the tree.

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Please help i need answer and explanation.
allsm [11]

Answer:

m<TVZ = 95

Step-by-step explanation:

2x+15+2x+5= 180

4x+20 =180

     -20  -20

4x=160

x= 40

2x+15= m<TVZ

2(40)+15 = m<TVZ

80+15 = m<TVZ

95 = m<TVZ

To check:

2x+5= <WVZ

2(40)+5 = <WVZ

80+5 = <WZV

85+95 = 180

The two angles together should equal 180. Comment if you have any questions :)

6 0
3 years ago
Read 2 more answers
Please help for 10 points and 5 stars with 1 thanks! :]
Rudiy27

probability = favourable outcomes/total outcomes

you need 1 banana, out of 4 and there are total of 6 items so probability will be 4/6

when you take out 1 banana, there are 3 banana left and total of 5 items

so probability of this action will be 3/5

now, next action is taking out another banana.

this is NOT an independent event.

so by we will multiply the probabilities of these events according to rule of products.

so the answer is \frac{4\cdot3}{6\cdot5}=\frac25

or 2×100/5=40%

7 0
3 years ago
Please help me. I need help please.
Mice21 [21]

Answer:

The correct options are;

EFGH has 4 congruent sides

Diagonal FH bisects angles EFG and EHG

Angle FEH is congruent to angle FGH

Step-by-step explanation:

1) Given that for a reflection, we have;

The distance of the reflected preimage from the line of reflection = The distance of the reflected image from the line of reflection

Therefore;

The distance of the point E from the line HF = The distance of the point G from the line HF

Also the reflection of an preimage (x, y) about the x-axis, gives an image (x, -y)

We can show that from the length of a line given by the equationl = \sqrt{\left (y_{2}-y_{1}  \right )^{2}+\left (x_{2}-x_{1}  \right )^{2}}, that the length EH ≅ GH and EF ≅ GF

Therefore since we are given that EH = EF, we have;

EH = GH = GF = EF by the definition of congruency, which gives 4 congruent sides

2) Given that EH = GH = GF = EF and HF = FH by reflective property, we have;

ΔEHF ≅ ΔGHF

∴ ∠GHF ≅ ∠EHF by Congruent Parts of Congruent Triangles are Congruent

Similarly, ∠GFH ≅ ∠EFH

Therefore, ∠GFH = ∠EFH and ∠GHF = ∠EHF

Therefore, diagonal FH bisects angles EFG and EHG

3) Given that ΔEHF ≅ ΔGHF, we have;

Angle FEH is congruent to angle FGH, by Congruent Parts of Congruent Triangles are Congruent

7 0
3 years ago
Which inequality is represented by the graph?y &gt; -2/3x + 1y &lt; -2/3x + 1y &lt; -3/2x + 1y &gt; -3/2x + 1
Tanya [424]

Answer:

y < -\frac{3}{2}x+1

Step-by-step explanation:

Given:

From the graph shown,

The broken line means that the inequality sign will be either < or >.

The shaded region is to the left of the broken line. This means that y < f(x).

Now, in order to find equation of line, we need slope and y-intercept.

From the graph, the y intercept is at (0,1). So, y intercept is 1.

Also, if we consider two points (0,1)\textrm{ and }(2,-2) on the line, then slope is given as:

m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}=\frac{-2-1}{2-0}=\frac{-3}{2}=-\frac{3}{2}

Therefore, the equation of the line is given as:

y=mx+b\\y=-\frac{3}{2}x+1

But as the shaded region is to the left of the line,

∴ y is the correct answer.

7 0
3 years ago
What is the second partial product of 564x307
irinina [24]
564
307
1129 is your answer
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3 years ago
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