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3 years ago

PLEASE SHOW WORK OR EXPLAIN

Mathematics

1 answer:

timofeeve [1]3 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:

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

$\dfrac{r}{20}=0.7813$ <em>multiply both sides by 20</em>

$r=15.626$

Tree height is r + 5.

Therefore

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

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What is the largest number of consecutive integers whose sum is 2003?

Sladkaya [172]

$2003 \div 2$ =1001.5

Go .5 below and .5 above this answer to get your consecutive integers.

Therefore the answer is 1001 and 1002.

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3 years ago

What is the area of rectangle ABCD?

MA_775_DIABLO [31]

Answer:

18 square units

Step-by-step explanation:

you multiply the base by the hight after graphing the square.

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3 years ago

I really need help with this one

Novay_Z [31]

Answer:

Step-by-step explanation:

Since B is the midpoint of AC, that means AB = BC. That means 3x+4 = 5x-6. We can now set up an equation to solve for x:

3x+4 = 5x-6

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Now that we know what x is, we can just plug x into the expression of AB and multiply it by 2:

(3*(5)+4)*2

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(side note: we could have plugged x into the expression of BC as well, but in this case plugging it into AB tends to be easier to solve)

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3 years ago

Suppose we take the interval [−5,7] and divide it into 4 equal subintervals. Find the width Δn of each subinterval. Δn = If we n

lana66690 [7]

Answer:

$x_0=-5\\x_1=-2\\x_2=1\\x_3=4\\x_4=7$

Δn=3

Step-by-step explanation:

Remember, if we need to divide the interval (a,b) in n equal subinterval, then we need divide the distance (d) between the endpoints of the interval and divide it by n. Then the width Δn of each subinterval is d/n.

We have the interval [-5,7]. The distance between the endpoints of the interval is

$d=7-(-5)=12$ .

Now, we divide d by 4 and obtain $\frac{d}{4}=\frac{12}{4}=3$

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Now, to find the endpoints of each sub-interval, we add 3 from the left end of the interval.

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So,

$x_0=-5\\x_1=-2\\x_2=1\\x_3=4\\x_4=7$

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3 years ago

What is the missing length?

aliina [53]

Answer:

The missing length is 7

Step-by-step explanation:

8 0

2 years ago

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