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3 years ago

It's trigonometry please help me with is real answers

Mathematics

1 answer:

Yuliya22 [10]3 years ago

3 0

4. cos º =a/h
cos 24 =42/x
42/cos 24=x
x=45.974

5. tan º = o/a
tan 21=39/x
39/tan 21= x
x-101.598

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Solve 4 5 x − 3 3 4 x = 2 1 2 45x - 334x = 212

love history [14]

Assuming the question is 45x - 334x = 212

Then the answer is:

45x - 334x = 212

-289x = 212

x = -(212 / 289)

x = -0.73

5 0

3 years ago

Tim wants to create a circle graph showing the number of physicians whose specialty is aerospace medicine. He knows the followin

Alenkinab [10]

Answer:

107 :)

Step-by-step explanation:

In total there are 53+8+155+17+145+10+98+2=488 physicians of aerospace medicine. 45-54 year-old males account for 145/488 of this population, so they should account for that fraction of the central angle of the circle graph also. Since there are 360 degrees in the central angle to divide up among the groups, the 45-54 year-old male group should get 145/488 x 360 which rounds to about 107 degrees.

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2 years ago

A solution has a h3o of 1x10^-3 M. What is the OH of the solution.

UNO [17]

The h30 of 1x10 Ig is 1x34

4 0

4 years ago

each cube inside the rectangular prism has an edge length 3/4 inch.What is the volume of the rectangular prism?

NNADVOKAT [17]

Answer:

$\frac{27}{64}n\,\,cubic\,\, inches$

Step-by-step explanation:

Given: Edge length of cube = $\frac{3}{4}\,\,inch$

To find: Volume of the rectangular prism

Solution:

A cube is a three-dimensional solid object which has 12 edges, 8 vertices and 6 faces.

A rectangular prism is a solid three-dimensional object which has six faces that are rectangles.

Let n denotes number of cubes inside the rectangular prism

Volume of one cube = $(edge)^3=(\frac{3}{4})^3 =\frac{27}{64}$ cubic inches

So, volume of rectangular prism = volume of n cubes = $\frac{27}{64}n\,\,cubic\,\, inches$

5 0

3 years ago

Can someone please help me with this

CaHeK987 [17]

Alright!

To solve, all we need to do is <em>subtract the area of the inner circle from the arear of the outer circle.</em>

But first, we need to find the area of both

Key equation: πr²

π = 3.14

Inner cirle area = π13²

π13² = 530.66

Outer cirle area = π21²

I got 21 by adding 8 and 13: both added together makes the radius of the larger circle

π21² = 1,385.74

Now let's <em>subtract. </em>

1,385.74 - 530.66 = 855.08

The area of the blue is = 855.08 yards²

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Part 2:

Hexagon with 6cm sides and an apothem of $3\sqrt{3} cm$

The answer is C. 93.53

6 0

4 years ago