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3 years ago

An oak tree is 60 ft cast a 40ft shadow how far is it from the top of the shadow to top of tree

Mathematics

2 answers:

svet-max [94.6K]3 years ago

6 0

Answer: 72.111

Step-by-step explanation:

Katena32 [7]3 years ago

5 0

Answer:

You have to use pythagorean theorum. a^2 + b^2 = c^2 where c is the hypotenuse. So the answer is the square root of 60^2 + 40^2 which is 20 square root 13 (20 root 13)

Step-by-step explanation:

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What is (-3 3/4) - (2 1/4)?

lisabon 2012 [21]

Answer: $-6$

Step-by-step explanation:

Rewrite the expression:

$-3\frac{3}{4}-2\frac{1}{4}$

Factor out the negative:

$-3\frac{3}{4}-2\frac{1}{4}$

$-(3\frac{3}{4} +2\frac{1}{4})$

Rewrite the sum:

$-(3\frac{3}{4} +2\frac{1}{4})$

$-((3+2)+(\frac{3}{4}+\frac{1}{4}))$

Calculate the sum:

$-((3+2)+(\frac{3}{4}+\frac{1}{4}))$

$-(5+1)$

Solve:

$-(5+1)$

$-6$

Please mark brainliest if this helped you :)

3 0

3 years ago

AABC is a right triangle. If AC = 15 and BC = 17, find AB.

Schach [20]

Answer:

AC=15

BC=17

AB=?

According to Pythagore's Theorem: AB² + AC² = BC².

AB² = BC² - AC²

= (17)² - (15)²

= 289 - 225

AB² = 64

AB = √(64)

= 8.

So AB = 8.

4 0

3 years ago

3(-4n - 9) = 21 plc solve

erma4kov [3.2K]

<h3>Answer:</h3>

$\huge{\boxed{n=-4}}$

<h3>Explanation:</h3>

$\begin{array}{cc}\begin{flushright}\text{Divide both sides of the equation by 3.}\end{flushright}&\begin{flushleft}-4n-9=7\end{flushleft}\\\begin{flushright}\text{Add 9 on both sides.}\end{flushright}&\begin{flushleft}-4n=16\end{flushleft}\\\begin{flushright}\text{Divide both sides by -4.}\end{flushrigh}&n=-4\end{array}$