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3 years ago

Find the value of x

Mathematics

2 answers:

olya-2409 [2.1K]3 years ago

8 0

I think it is x equals 10

laiz [17]3 years ago

7 0

B. X= √55

To solve this, you do the Pythagorean theorem.

a^2+b^2=c^2

Since the entire leg equals to 6, you split it in half to find the short length of the right triangle. Which would equal to 3.

3^2+b^2=8^2

9+b*2=64

Subtract 9 from both sides

b^2=55

So x would equal to √55

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Dafna11 [192]

Answer:

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Step-by-step explanation:

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3 years ago

What is 10X+5 if X=6? I forgot

ankoles [38]

Answer:

Step-by-step explanation:

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4 years ago

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Find the point (x,y)<br>on the line y = x that is equidistant from the points (-6,2) and (10,-9)

Nezavi [6.7K]

Answer:

(14.1, 14.1)

Step-by-step explanation:

If the point (x,y) is on the line y=x, then it has coordinates (x,x).

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distance from (x,x) to (-6,2): $\sqrt{(x-(-6))^2+(x-2)^2}=\sqrt{(x+6)^2+(x-2)^2}$
distance from point (x,x) to (10,-9): $\sqrt{(x-10)^2+(x-(-9))^2}=\sqrt{(x-10)^2+(x+9)^2}$

Equate these distances:

$\sqrt{(x+6)^2+(x-2)^2}=\sqrt{(x-10)^2+(x+9)^2}$

Square this equation:

$(x+6)^2+(x-2)^2=(x-10)^2+(x+9)^2\\ \\x^2+12x+36+x^2-4x+4=x^2-20x+100+x^2+18x+81\\ \\8x+40=-2x+181\\ \\8x+2x=181-40\\ \\10x=141\\ \\x=14.1$

So, the coordinates are (14.1, 14.1)

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4 years ago

Molly scored 86, 87, 93, and x

zmey [24]

Answer:

Step-by-step explanation:

Average is the sum of all data points divided the number of data points.

In this specific situation, the average test score, 91, is equal to the sum of Molly's four individual test scores divided by the number of test Molly had, 4.

(( 86 + 87 + 93 + x) / 4) = 91

86 + 87 + 93 + x = 91/4

86 + 87 + 93 + x = 364

x = 364 - 93 - 87 - 86 = 98

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3 years ago

In a classroom of 33 students, the ratio of boys to girls is 3 : 8.

kirill [66]

Answer:

the answer is 9 :)

Step-by-step explanation:

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3 years ago

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Find the value of x ​

Find the value of x