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2 years ago

PLEASE SHOW WORK OR EXPLAIN

Mathematics

1 answer:

timofeeve [1]2 years ago

7 0

Answer:

Step-by-step explanation:

You must use the trigonometric function.

In this case, it will be tangent.

$tangent=\dfrac{opposite}{adjacent}$

We have

$\theta=38^o,\ opposite=r,\ adjacent=20$

$\tan38^\approx0.7813$

Substitute:

$\tan38^o=\dfrac{r}{20}$

$\dfrac{r}{20}=0.7813$ multiply both sides by 20

$r=15.626$

Tree height is r + 5.

Therefore

$r+5=15.626+5=20.626\approx20.6\ ft$

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Why do we need to find the average of something

daser333 [38]

Answer:

To know what is the average of it

Step-by-step explanation:

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3 years ago

Tn = -2n + 3, find t4

yanalaym [24]

Substitute n = 4

t(4)=-2(4)+3

-8+3= -5

therefore t(4) = -5

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3 years ago

PLEASE HELP WILL MARK AS BRAINLIEST EASY MATH

Pachacha [2.7K]

5. The answer is D
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2 years ago

Read 2 more answers

Write an equation in slope intercept form that goes through (-1,6) and (3,-2)

pochemuha

<h2>Answer:</h2>

First, we need to use slope formula* to find the slope.

$m = \frac{-2 - 6}{3 - (-1)} = \frac{-8}{4} = -2$

Second, we use the slope we found and ONE of the 2 points listed and plug it into slope-intercept form** to solve for b.

Here is what we have so far:

$m = -2$

I'm going to use this point:

$x = 3$

$y = -2$

Here is how to find b:

$-2 = -2(3) + b\\\\-2 = -6 + b\\\\4 = b$

Finally, we put all of it together and we have our equation.

$y = -2x + b$

*Slope formula: m = y₂ - y₁/x₂ - x₁

**Slope-intercept form: y = mx + b

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2 years ago

In the diagram below line l is parallel to line m which angles are congruent to angle 1

Alchen [17]

ANSWER

$\angle1 \cong \angle3$

$\angle1 \cong \angle8$

$\angle1 \cong \angle6$

EXPLANATION

Since line l is parallel to line m,

$\angle1 \cong \angle3$

because the two angles are vertically opposite angles.

$\angle1 \cong \angle8$

because the two angles are corresponding angles.

$\angle1 \cong \angle6$

because the two angles are alternate exterior angles.

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2 years ago