All categories

2 years ago

Q) 18 & 20 please answer.

Mathematics

1 answer:

Setler [38]2 years ago

5 0

18. S=r^2-t^2
S+t^2=r^2
r=sqrt(S+t^2)
20. Tan 18=x/12
x=12×Tan 18
x=3.899036355
x=3.90

I hope this helps.

You might be interested in

Ski tour sales at an agency went from $12,500 in January to $8,700 in February. Enter the value to make a true statement. Round

IRINA_888 [86]

Answer:

the correct answer is 38.0%

Step-by-step explanation:

Trust me

8 0

2 years ago

Read 2 more answers

The two lines below intersect as shown what the value of x (2x+29) (9x-13)

tensa zangetsu [6.8K]

Given:

Two lines intersect each other.

Consider the below figure attached with this question.

To find:

The value of x.

Solution:

If two lines intersect each other then the vertically opposite angles are congruent and their measures are equal.

In the given figure, the measures of two vertically opposite angles are (2x+29)° and (9x-13)°.

$2x+29=9x-13$

$2x-9x=-29-13$

$-7x=-42$

Divide both sides by -7.

$x=\dfrac{-42}{-7}$

$x=6$

Therefore, the value of x is 6.

8 0

2 years ago

A student spends the same amount each week for bus fare. In 6 weeks, he spends $81. Which equation shows this relationship? Let

Pavel [41]

Answer:

The answer is 13.50x

Step-by-step explanation:

81 / 6=13.5 per week

8 0

3 years ago

Read 2 more answers

How to find Lateral area of this rectangular prism?? Plzz help me it is due tomorrow!!

yaroslaw [1]

Answer:

132 square millimeters

Step-by-step explanation:

THe lateral area of a rectangular prism is the side areas. That is

all 4 sides of the rectangular prism (that are rectangles each).

So, we find each side area and add them up.

The area of a rectangle is:

Area = length * width

The left side (in gray) is 9 mm x 3mm, so area:

area = 9 * 3 = 27

The right side rectangle is same, so that would have an area of:

area = 9 * 3 = 27

Now, the front side's measurement is 3 x 13, so the area is:

Area = 3 * 13 = 39

THe back is same, so the area would be:

Area = 3 * 13 = 39

Total Surface Area = 27 + 27 + 39 + 39 = 132 square millimeters

6 0

2 years ago

Q7 Q7.) Find the unit vector in the same direction as v.

igor_vitrenko [27]

Use Pythagorean theorem:

9i-j = sqrt (9^2 - 1^2) = sqrt(81-1) = sqrt80

now divide both terms in V by that:

u = 9/sqrt(80)i - 1/sqrt(80)j

see attached picture:

7 0

3 years ago

Read 2 more answers