All categories

3 years ago

Trigonometry find X and Y

Mathematics

1 answer:

swat323 years ago

6 0

Answer: 100

Step-by-step explanation: multiply 45 x 45 because it is a right angle and both sides equal the same.

You might be interested in

What is the value of x?

natima [27]

Answer:

the value of x is one of those answers i can tell you son

Step-by-step explanation:

and it is NOT 3/4 thast FOR SURE

4 0

3 years ago

The perimeter of an equiteral triangle is 4 inches more than the perimeter of a square, and the side of the triangle is 4 inches

shutvik [7]

Answer:

12inches

Step-by-step explanation:

12x3=36 triangle perimeter

8x4=32 square perimeter

7 0

3 years ago

Ophelia is making homemade spaghetti sauce by combining 48 oz of tomato paste with 6 cups of water.

lesya [120]

you didn't complete your question.

please type the whole question.

8 0

4 years ago

REEEEEEEEEEEEEEEEE I need help plz ;-;

Leni [432]

Answer:

Step-by-step explanation:

150 ft in 30 seconds

150/30=5 we have 5 ft per second

in 10 seconds 5*10=50 ft

choice C

6 0

3 years ago

Read 2 more answers

1. Bob tried to answer the following question by finding the missing angle and rounding the answer to the nearest degree.

iren2701 [21]

Answer:

Part 1)

Bob's mistake was to have used the cosine instead of the sine

The measure of the missing angle is $53.13\°$

Part 2) The surface area of the pyramid is $288\ cm^{2}$

Step-by-step explanation:

Part 1)

Let

x----> the missing angle

we know that

In the right triangle o the figure

The sine of angle x is equal to divide the opposite side angle x to the hypotenuse of the right triangle

$sin(x)=\frac{16}{20}$

$x=arcsin(\frac{16}{20})=53.13\°$

Bob's mistake was to have used the cosine instead of the sine

Part 2) we know that

The surface area of the square pyramid is equal to the area of the square base plus the area of its four lateral triangular faces

$SA=b^{2}+4[\frac{1}{2}(b)(h)]$

where

b is the length side of the square

h is the height of the triangular lateral face

In this problem

$h=b/2$ -------> by an 45° angle

$b=2h$

$sin(45\°)=\frac{h}{6\sqrt{2}}$

$h=6\sqrt{2}(sin(45\°))=6\ cm$

Find the value of b

$b=2(6)=12\ cm$

Find the surface area

$SA=12^{2}+4[\frac{1}{2}(12)(6)]=288\ cm^{2}$

3 0

4 years ago