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3 years ago

Trigonometry Practice

Mathematics

1 answer:

Nezavi [6.7K]3 years ago

3 0

Answer:

x = 16.20

Step-by-step explanation:

tan48 = 18/x

xtan48 = 18

x = 18/tan48

x = 16.20

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the radius of the base of a right cylinder is 12 cm and the height and the height of the cylinder is 18 cm. in terms of pi what

sladkih [1.3K]

Answer:

Step-by-step explanation:r=12cm,h=18cm,v=?

Vol. Of a cylinder=Πr²h

V= Π×12²×18

V= Π×144×18

V=2592Πcm³

7 0

3 years ago

Help me please:<br> 3/4 - 7/9 + 2/3 =

mojhsa [17]

Answer:

3/4-7/9+2/3=0.63

Step-by-step explanation:

.........

8 0

3 years ago

Read 2 more answers

In the figure, x ∥ y and a is a transversal that crosses the parallel lines.

Dominik [7]

Here, exterior angles are 1, 2, 7 & 8 as they are outside the parallel lines, & among them, alternates are: 1 with 7 and 2 & 8. 1 & 7 is not in option but 2 and 8 is there in C

In short, Your Answer would be Option C

Hope this helps!

8 0

3 years ago

Help ASAP

polet [3.4K]

Answer:

a and c

Step-by-step explanation:

3 0

3 years ago

I'M OFFERING 20 POINTS-

Dafna11 [192]

Answer:

Third option is correct. Scale factor 3 ; enlargement.

Step-by-step explanation:

It is given that the figure A'B'C'D' is a dilation of figure ABCD.

We know that after dilation the corresponding sides of image and preimage are in the same proportion.

The image of AD is A'D'.

From the figure it is noticed that the A(-1,2), D(-1,-1), A'(-3,6) and D'(-3,-3).

Distance formula is

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$AD=\sqrt{(-1+1)^2+(-1-2)^2}=\sqrt{9}=3$

$A'D'=\sqrt{(-3+3)^2+(-3-6)^2}=\sqrt{81}=9$

Scale factor is constant which represents the relation between image and preimage.

$k=\frac{A'D'}{AD}$

$k=\frac{9}{3}$

$k=3$

Therefore the scale factor is 3.

If k>0 it means enlargement and if k<0 it means reduction. Therefore third option is correct.

3 0

4 years ago

Read 2 more answers