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2 years ago

Two lengths of a triangle are show

Mathematics

1 answer:

leonid [27]2 years ago

5 0

I can't give you the correct answer but you can guess for it, cause I can give you the the scop of the length of KL.

So, as we know this;

The sum of the two sides of a triangle is greater than the third and the difference between the two sides is less than the third.

10+5 >= KL >= 10-5

15 >= KL >= 5

based on your option, the answer should be:

9 in

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Find the value of x. Round your answer to the nearest tenth.

Fantom [35]

Hello again! So we will be using the pythagorean theorem ( $leg^2+leg^2=hypotenuse^2$ ) to solve for the bottom leg of the triangles. After we do that, we'll subtract the value of the legs from 31, and that'll be x.

Plug in 17 and z (or any variable that isn't x) into the leg variable and 19 into the hypotenuse variable, and from there we can solve.

$17^2+z^2=19^2$

Solve the exponents to get $289+z^2=361$

Subtract 289 on each side to get $z^2=72$

Lastly, square root each side of the equation and your answer should be $z= \sqrt{72}$ (To get more accurate answers, you shouldn't round until the end of the problem)

Nextly, we will need to subtract $\sqrt{72}$ from 31. And since there are 2 triangles, you'll need to multiply $\sqrt{72}$ by 2.

$x=31- \sqrt{72} *2 \\ x=14.0$

In short, x = 14.0

5 0

3 years ago

The average (arithmetic mean) of y numbers is x. if 30 is added to the set of numbers, then the average will be x - 5. what is t

Anastasy [175]

Given,

AM of y numbers = x.

Let the sum of y numbers be s.

AM of y numbers = x

$\frac{s}{y} = x$

$s = y*x$

Given, when 30 is added to the y numbers, the AM becomes x - 5.

$\frac{s + 30}{y + 1} = x - 5$

$\frac{y*x + 30}{y +1} = x - 5
$

$y*x + 30 = (x -5)( y +1)$

$y*x + 30 = y*x + x - 5y -5$

$5y = x - 5 -30 = x - 35
$

$y = \frac{x -35}{5}$

8 0

3 years ago

10. Find the rate of change in the table below.

Natasha_Volkova [10]

Answer:

it's times 4 every time

Step-by-step explanation:

4.5 times 4 is 18 etc

6 0

3 years ago

Which graph represents x - 1 ≤ 3

MAVERICK [17]

The first graph.

The equation is x - 1 $\leq$ 3
In order to solve it, you need to get x by itself.
Add 1 to both sides. 3+1=4
x $\leq$ 4

Since this is your sign $\leq$ the arrow has to point towards the left, and the circle needs to be colored in.

3 0

3 years ago

if the length of segment AB is 1/3 the length of segment AC and if segment AC is 12 cm long, how long is segment BC?

jeka94

The length of BC I believe will be 8

8 0

3 years ago

Read 2 more answers

Two lengths of a triangle are show ​

Two lengths of a triangle are show