3 years ago

WILL MARK BRAINLIEST TO FIRST CORRECT ANSWER

Mathematics

1 answer:

evablogger [386]3 years ago

3 0

Answer:

{(-1, 8), (0, 5), (2, -1), (3, -4)}

Step-by-step explanation:

I used a calculator, pls let me know if im incorrect

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The table below shows that 1 day equals 24 hours. Notice that 12 hours is one-half of that. Use the table to help you determine

djverab [1.8K]

Answer:

There are 1.25 days in 30 hours or 1 1/4 days in 30 hours

Step-by-step explanation:

As we know one day is 24 hours. So if we divide 30 hours by 24 hours (or one whole day) then we get 1.25 days or also known as 1 1/4 days

6 0

3 years ago

To measure the height of a tree, a surveyor walked a short distance from the tree and found the angle of elevation was 43.9°, th

padilas [110]

Answer:

The height of the tree is H = 77.06 m

Step-by-step explanation:

From Δ ABC

AB = height of the tree

$\tan 43.9 = \frac{AB}{BC}$

$\tan 43.9 = \frac{h}{x}$

h = 0.9623 x ------- (1)

From Δ ABD

$\tan 37.6 = \frac{h}{20+ x}$

h = 0.77 (x + 20) ----- (2)

Equating Equation 1 & 2 we get

0.9623 x = 0.77 (x + 20)

0.9623 x = 0.77 x + 15.4

x (0.1923) = 15.4

x = 80.08 m

Thus the height of the tree is given by

H = 0.9623 x

H = 0.9623 × 80.08

H = 77.06 m

Therefore the height of the tree is H = 77.06 m

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The area of the triangle with sides 60 cm,100 cm and 140 cm is of the form 1500 square root x cm².

Ede4ka [16]

Answer:

150

Step-by-step explanation:

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Is this a function? Why or why not?

professor190 [17]

Answer:

Yes because there are no repeated dependent variables.

Step-by-step explanation:

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Emily will receive 40 cents in return

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