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2 years ago

Find the value of the variable.

Mathematics

1 answer:

eduard2 years ago

8 0

Answer:

please provide a picture.

Step-by-step explanation:

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Find the slope of the line that passes through the points ( -2,3) and (7,-4)

Triss [41]

Answer:

Slope= -7/9

Step-by-step explanation:

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2 years ago

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Which set of numbers represents a Pythagorean triple

Anuta_ua [19.1K]

Answer:

27,36,45

Step-by-step explanation:

Pythagorean theorem

$a^{2} +b^{2} =c^{2}$

$6^{2}+ 9^{2}\\ =117\\\neq 12^{2}$

$7^{2}+ 10^{2}\\ =149\\\neq 12^{2}$

$16^{2}+ 18^{2}\\ =580\\\neq 25^{2}$

$27^{2}+ 36^{2}\\ =2025\\= 45^{2}$

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2 years ago

What percent of 25 is 30

Thepotemich [5.8K]

0.833333333% is the answer

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2 years ago

What is the equation of a line that passes through the points `\left(-2\ ,\ 9\right)`and `\left(-4\ ,\ -4\right)`?

Dennis_Churaev [7]

Answer:

y=(5/2)x+14

Use the slope formula and slope-intercept form y=mx+b to find the equation

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2 years ago

Im not sure how to find the missing angle

LuckyWell [14K]

Answer:

Step-by-step explanation:

the question is asking for the length of the side labeled x

use Pythagoras' theorem to find that side

where c = x because c represents the hypotenuse in the theorem and x is on the hypotenuse in this problem

c = $\sqrt{a^{2} + b^{2} }$

sooo plug in a = 14 and b = 10

c = $\sqrt{14^{2} + 10^{2} }$

c = $\sqrt{196+100}$

c = $\sqrt{296}$

c= 17.20465..... ( that's the approx. length of side x in the problem )

since this is a right triangle we could use trigonometry to find the two angles use SOH CAH TOA to remember how those functions fit on the triangle.

Sin(Ф)=Opp/Hyp Cos(Ф)=Adj/Hyp Tan(Ф)=Opp/Adj

since we know the Hyp (hypotenuse) and the side adjacent will be the side with the 10 soooo...

Cos(Ф)=10/17.20465

Ф = arcCos(10/17.20465)

Ф = 54.4623° is the angle on the side with 10

the side with 14 then has an angle of 35.5376°

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2 years ago