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enot [183]
3 years ago
15

WILL MARK BRAINLIEST !!! find the indicated value for each of the figures shown or described

Mathematics
1 answer:
timama [110]3 years ago
6 0

Answer:

10. 9

In the first question we can solve using the Pythagorean theorem. It states that the hypotenuse in a right triangle or the longest side of the triangle, squared is equal to the other 2 sides, squared. Its expressed as so: C^2 = A^2 + b^2 where c is the hypotenuse and a and b are the other sides oft eh triangle.

Therefore,

15^2 = 12^2+x^2

225=144+x^2

81=x^2

x=9

__________________________________________________________

11. x=12

In this figure, there are 2 right triangles on the sides of the square. If we can find the lengths of the base of both triangles then we can find x using the Pythagorean theorem. the total base is 21 and the square is 11. 11+a+b=21. We can assume that both triangles are congruent and therefore we can solve this equation:

11+a+b=21

a+b=10

5+5=10

b=5

a=5

The bases of the two triangles are 5 and the hypotenuse is 13. Now we can solve using the Pythagorean theorem:

c^2 = a^2+b^2

13^2=5^2+x^2

169=25+x^2

144=x^2

144= 12 x 12

x=12

__________________________________________________________

12.

The diagnol of a triangle is the hypotenuse and since the length is the square root of 3, we have all the information we need.

c^2 = a^2+b^2

2^2 = (square root of 3)^2+b^2

4=3+b^2

1=b^2

b=1

Step-by-step explanation:

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How do I answer this Question? It’s phythagoras theorem!
zhuklara [117]

Answer:

C = 11.18       D= 20

Step-by-step explanation:

Let's start with C

Square root both areas of the squares

\sqrt{25} =5

\sqrt{100}=10

Then use the Pythagoras Theorem: a^{2} +b^{2} =c^{2}

10^{2} +5^{2} =125

\sqrt{125} =11.18033989 = C

Moving on to D

Square root both areas of the squares

\sqrt{841} =29

\sqrt{441} =21

29 is the hypotenuse, we are trying to find the other leg, so:

29^{2} -21^{2} =400

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3 years ago
1 - For what value of n is 20 = n/5 + 10 ?
Elena-2011 [213]
First one

20=n/5+10
minus 10 both sides
10=n/5
times 5 both sides
50=n


2.
hmm
expand
p(x)=2x^2+5x+3-3x-3n
p(x)=2x^2+2x+3-3n
it looks like the coefients of the x terms are divisble by 2
because
if we have
p(x)=2(something)
the p(x) is divisible by 2

therefor that factor is 2 or -2
find what value of n works
so
3-3n=a multipule of 2
we are given
-3,-2,0,2
try each
3-3(-3)=3+9=12, that's divisble by 2
3-3(-2)=3+6=9, that's not divisible by 2
3-3(0)=3, that's not divisble by 2
3-3(2)=3-6=3, that's not divisble by 2


the onnly one that woks is when n=-3

answer is A
 
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If f(x)=3x-6 and g(x)=6x-3, what is f.g?​
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