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Aleksandr-060686 [28]
3 years ago
15

Find the value of x within the triangle

Mathematics
1 answer:
Allushta [10]3 years ago
4 0

Answer:

68.46

Step-by-step explanation:

In order to find the angle, we can use the cosine rule:

c²=a²+b²-2abCos(c)

And rearrange for Cos(c)

(please note that c in this case is x)

So,

x=Cos^(-1) (a²+b²-c²)/2ab

By substituting the values, we get x=Cos^(-1)(4²+4²-4.5^2)/2(4)(4)

=68.46

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HELP ME EVERYONE PLZ
yawa3891 [41]

Answer:

Option D.  23.4 pounds

Step-by-step explanation:

step 1

Find the pieces of glass for 22.5 pounds of copper in the sculpture.

using proportion

\frac{12}{1}=\frac{x}{22.5} \\ \\x=22.5*12\\ \\x=270\ piece\ of\ glass

step 2

Find the pounds of bronze used in the sculpture

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7 0
3 years ago
Who drew a line with a slope of 3? names are above each graph
hoa [83]

Answer:

Benito did

Step-by-step explanation:

a slope is basically rise over run so u can see that he started at -1.

-1 plus 3 is 2

then the run part is just going right one since its a whole number

4 0
3 years ago
How can you tell if a linear equation is proportional?
Snezhnost [94]

Answer:

If the line goes through the origin, (0,0), that means the linear equation is proportional, if it doesn't go through the origin, the equation isn't proportional.

You can also tell if a linear equation is proportional if the equation has an constant after the x (for example y=2x+6)

5 0
3 years ago
Can you simplify 14/15??
DiKsa [7]
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This is because 14 and 15 do not have any common factors.
6 0
3 years ago
Read 2 more answers
• What are two ways to start solving this equation? Choose BOTH.
zhannawk [14.2K]

Answer:

Divide both sides by-2

Use the distributive property

Step-by-step explanation:

If you divided both sides by -2, you would get n + 3 = -6.5. Then you would have to subtract 3 from both sides, so n would be -9.5.

However, if you used the distributive property, you would get -2n - 6 = 13. Then you could add 6 to both sides and get -2n = 19. Finally, to solve for n, you would divide both sides by -2 to get n = -9.5.

Hope this helps!

5 0
2 years ago
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