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charle [14.2K]
3 years ago
11

A tree casts a shadow that is 150 feet long. If the angle of elevation is 30 degrees, how tall is the tree?

Mathematics
1 answer:
Zarrin [17]3 years ago
5 0
Pythagorean Theorem

Answer is 5
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Solve for x. Write both solutions, separated by a<br> comma.<br> 9x^2+ 3x – 2 = 0
kogti [31]

Answer:

x=1/3, x=-2/3

Step-by-step explanation:

9x^2 +6x -3x -2=0

6x and -3x add up to 3x. You need four terms to factor.

Then you factor=

3x(3x+2)-1(3x+2)=0

(3x-1)(3x+2)=0

Then you can make two equations

3x-1=0 and 3x+2=0 because to multiply to get 0, at least one will be 0.

3x-1=0

3x=1

x=1/3

3x+2=0

3x=-2

x=-2/3

So your answers are x=1/3, x=-2/3

hope this helps!

6 0
3 years ago
Work out 10.3 % of 853.93 km Give your answer rounded to 2 DP.
Vilka [71]

Answer: 87.95

Step-by-step explanation: 10.3% of 853.93

10.3%= 0.103

So you would do 0.103 times 853.93=87.95479 round that to 2 Dp. You get 87.95

7 0
3 years ago
The table shows the relationship between the number of bracelets made and the number of beads used. The number of beads used to
sp2606 [1]

Answer:

It would be 63

Step-by-step explanation:

This is because 9 x 7 = 63

Simple math.

3 0
3 years ago
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PLS HELP ME ASAP WITH NUMBER 37
Reil [10]
A) The equations are shown on the attached graph.
x = juice box cost
y = water bottle cost

B) Kara's proposed solution satisfies the first equation, but not the second one.

C) The solution is shown on the attached graph.

____
As a bonus, you get a graph for the other problem you posted. Please note this graph has some issues. Wherever there's a solid line ⌝ or ⌞ the actual shape of the graph should be the opposite one of these.

5 0
3 years ago
Your friend Jamie rolled a number cube and got the number 5. in his next turn he says he won’t be able to roll another 5 because
konstantin123 [22]
No, the probability of getting a 5 is 1/6, but you could roll any number of fives in a row. It is just as likely to get rolled the second time as it was the first.
8 0
3 years ago
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