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3 years ago

HELP ME! thank youu!

Mathematics

1 answer:

Dvinal [7]3 years ago

5 0

Answer:

y=51(Alternate interior angles)

z=40(Alternalte interior angles)

x=89(Sum of angles in a triangle)

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How to do this helppp ! i need this for my finals

ruslelena [56]

Answer:

9. 168

10.

$3 {x}^{2} - 14x - 24$

Step-by-step explanation:

on the picture

if it's helpful ❤❤❤

THANK YOU.

7 0

3 years ago

The veloctiy of sound in air is given by the equation v=20 times the square root of 273+t where v is the velocity in meters per

Nikitich [7]

So we just need to plug in our values and solve
$v = 20 \sqrt{273 + t}$
we are given v is 369 so we have
$369 = 20 \sqrt{273 + x}$
now we solve for x.
divide both sides by 20
square both sides
subtract 273 from both sides
$369 = 20 \sqrt{273 + x} \\ 18.45 = \sqrt{273 + x} \\ 340.40 = 273 + x \\ x = 67.4$
so a temp of about 67 degrees C

5 0

3 years ago

Read 2 more answers

What is the value of x if x/ 3 + 1 = -2 ?

Serga [27]

<h2>Answer:</h2><h3>x = -9</h3>

<h2>Step-by-step explanation:</h2>

<h3><u>Step 1</u>: Simplify both sides of the equation.</h3><h3 /><h3>1/3x+1=−2</h3><h3 /><h3><u>Step 2</u>: Subtract 1 from both sides.</h3><h3 /><h3>1/3x+1−1=−2−1</h3><h3 /><h3>1/3x=−3</h3><h3 /><h3><u>Step 3</u>: Multiply both sides by 3.</h3><h3 /><h3>3*(1/3x)=(3)*(−3)</h3><h3 /><h3>x=−9</h3>

8 0

3 years ago

Find the value of x from the given figure:

zubka84 [21]

Answer:

60°

Step-by-step explanation:

2x and x are linear pair,

=> 2x + x = 180

=> 3x = 180

=> x = 180/3

=> x = 60°

=>2x =120°

7 0

3 years ago

Read 2 more answers

Help

weeeeeb [17]

Answer:

If a polygon is convex, then the sum of the measures of the exterior angles, one at each vertex, is 360° .

Consider the sum of the measures of the exterior angles for an n -gon.

N=180n−180(n−2)

Distribute 180 .

N=180n−180n+360 =360.

Step-by-step explanation:

3 0

3 years ago