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3 years ago

Caleb and Sarah are having a Halloween

Mathematics

1 answer:

Norma-Jean [14]3 years ago

4 0

I’m gonna need how many pounds of candy they have to solve this question. You didn’t say how much pounds they had

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If there were 81 rows of green apple and each tree produced 542 apples how many green apples would there be in all

Anna35 [415]

81 apple trees
542 apples per tree
81 x 542 = 43,902 green apples

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3 years ago

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Jo is thinking of a number. four less than 9 times the number is 176. find jo's number

luda_lava [24]

Answer:20

Step-by-step explanation:

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2 years ago

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Zaheer, a boy of height 1.5m was watching the entire programme. Initially he observed the top of theflagpoleat an angle of eleva

torisob [31]

Answer:

$h = 15.163\ meters$

Step-by-step explanation:

(Assuming the correct angles are 30° and 45°)

We can use the tangent relation of the angle of elevation to find two equations, then we can use these equations to find the height of the pole.

Let's call the initial distance of the boy to the pole 'x'.

Then, with an angle of elevation of 30°, the opposite side to this angle is the height of the pole (let's call this 'h') minus the height of the boy, and the adjacent side to the angle is the distance x:

$tan(30) = (h - 1.5) / x$

Then, with an angle of elevation of 45°, the opposite side to this angle is still the height of the pole minus the height of the boy, and the adjacent side to the angle is the distance x minus 10:

$tan(45) = (h - 1.5) / (x - 10)$

So rewriting both equations using the tangents values, we have that:

$0.5774 = (h - 1.5) / x$

$1 = (h - 1.5) / (x - 10) \rightarrow (h - 1.5) = (x - 10)$

From the first equation, we have that:

$x = (h - 1.5) / 0.5774$

Using this value of x in the second equation, we have that:

$h - 1.5 = \frac{ (h - 1.5) }{0.5774} - 10$

$h + 8.5 = \frac{ (h - 1.5) }{0.5774}$

$0.5774h + 4.9079 = h - 1.5$

$0.4226h = 6.4079$

$h = 15.163\ meters$

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3 years ago

The graph of a function f(x) is shown below:<br><br><br><br>What is the domain of f(x)?

Advocard [28]

The domain is {the smallest x value with a point, the largest x value with a point} on the graph

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3 years ago

25. Researchers are using a new fitness watch with heart monitoring capabilities to study the human heart. In particular, they a

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Answer:

(D) Although cause-and-effect cannot be established, there is an association between stress and the presence of heart arrhythmias for the population of all women aged 30 to 50.

Step-by-step explanation:

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3 years ago