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3 years ago

Help me please thank you!!

Mathematics

1 answer:

Roman55 [17]3 years ago

4 0

Number 2 following the angle measures like 90 degress and 180 degress

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I need help pretty please!

Naddika [18.5K]

Answer:

cos(z) = .3846153846 and angle z = 67.38°

Step-by-step explanation:

Side UV is corresponding to side YX. Side VW is corresponding to side YZ. Side UW is corresponding to side XZ.

Starting with the first corresponding pair, we are told that side UV is 36, and that side YX is 3/5 of that. So side YX is

$\frac{3}{5}*36=21.6$

We are next told that side VW is 39, so side YZ is

$\frac{3}{5}*39=23.4$

In order to find the cos of angle z, we need the adjacent side, which is side XZ. Side XZ is 3/5 of side UW. Right now we don't know the length of side UW, so we find it using Pythagorean's Theorem:

$39^2-36^2=UW^2$ and

$UW^2=225$ so

UW = 15

Now we can say that side XZ is

$\frac{3}{5}*15=9$

The cos of an angle is the side adjacent to the angle (9) over the hypotenuse of the triangle (23.4) so our ratio is:

$cos(z)=\frac{9}{23.4}$

which divides to

cos(z) = .3846153846

If you need the value of the angle, use the inverse cosine function on your calculator in degree mode to find that

angle z = 67.38°

3 0

3 years ago

I need help finding the area of a figure, it has 15ft of heigh on the left side, 20ft wide, and it's 20ft tall on the right side

spin [16.1K]

Answer:

Step-by-step explanation:

area=(20 ×20)÷2=200 sq . units

7 0

3 years ago

How to draw Logarithm

MAXImum [283]

You can google it and it’ll show you how to do so

6 0

3 years ago

3/4 + (1/3 ÷ 1/6) - (-1/2) =?

stepladder [879]

Answer:

[See Below]

Step-by-step explanation:

✦ Turn fractions into decimals:

$\frac{3}{4} =0.75$

$-\frac{1}{2} =-0.5$

(We will do something different for $\frac{1}{3}$ and $\frac{1}{6}$ .)

✦ Divide:

$\frac{1}{3}$ ÷ $\frac{1}{6}=2$

(Since the denominators are multiplies of each other we can divide them without having to change them into decimals.)

✦ Simplified Equation:

$0.75+2-(-0.5)$

✦ Add:

$0.75+2=2.75$

✦ Subtract:

$2.75-(-0.5)=3.25$

(Subtraction rule is if there is 2 negatives next to each other in a problem it turns into a positive.)

✦ So your answer would be:

$\frac{13}{4}$ (Exact Form)

$3~ \frac{1}{4}$ (Mixed Number Form)

$3.25$ (Decimal Form)

~<em>Hope this helps Mate. If you need anything feel free to message me. </em>

8 0

3 years ago

Slove the following <br>equation without with out transporting I)5y +10=4y-10

Katen [24]

The answer is y= -20

7 0

3 years ago