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3 years ago

Question is 100 points please help the question is in the pic

Mathematics

2 answers:

otez555 [7]3 years ago

6 0

For number 5: 180 -139 = x

For number 6: x = 41

For number 7: x + 18 = 90 (not 100% sure)

For number 8: x = 72

For number 9: you could write an equation about an acute angle and divide it into 2 parts the have one side 3 + 8 and have the other x. Then you could go from there. I’m sorry if you can’t figure out number 9. I tried to think of something.

mario62 [17]3 years ago

5 0

Answer:

For number 5: 180 -139 = x

For number 6: x = 41

For number 7: x + 18 = 90 (not 100% sure)

For number 8: x = 72

For number 9: you could write an equation about an acute angle and divide it into 2 parts the have one side 3 + 8 and have the other x. Then you could go from there. I’m sorry if you can’t figure out number 9. I tried to think of something.

Step-by-step explanation:

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6) (after 2.3) Consider the infinite system of linear equations in two variables given by ax + by = 0 where (a, b) moves along t

Paraphin [41]

Answer:

Step-by-step explanation:

Given infinite system of linear equations is ax + by = 0

when (a,b) moves along unit circle in plane.

a) system having unique system (0, 0)

Since two of equation in thus system will be

$1.x+0.y=0\\x=0$

and

$0.x+1.y=0\\y=0$

It is clear that x = 0, y= 0 is the only solution

b) Linear independent solution in this system gives some set of solutions

$1.x+0.y=0\\\x=0$

and

$0.x+1.y=0\\y=0$

Vector form is

$\left[\begin{array}{ccc}1&0\\0&1\end{array}\right] =I$

c) for this equation if add 0x +0y = 0 to system , Nothing will change

Because [0,0] satisfies that equation

d) If one of the equation is ax + by = 0.00001

where 0.00001 is small positive number

so, the system will be inconsistent

Therefore, the system will have no solution.

6 0

3 years ago

Find the length of side AB in the right triangle shown.

Bogdan [553]

Side AB is 72 cm long.

Explanation:

To find the length of side AB you have to use this formula:

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

*Remember there are two legs (a and b) and a hypotenuse (c) on a triangle. The longest side will be the hypotenuse and the other two will be the legs. For this triangle the hypotenuse is side BC while the legs are sides CA and side AB.

Plug in the numbers into the equation.

${65}^{2} + {b}^{2} = {97}^{2}$
For this triangle, you were given the hypotenuse (c) and one leg (a). To find the last length solve the equation and balance it so only b is left, like this:

$4225 + {b}^{2} = 9409$

$9409 - 4225 = 5184$

Soo...

${b}^{2} = 5184$

Then to get the side length, square root 5184.

$\sqrt{5184} = 72$

So the length of the last side is 72 cm.

5 0

3 years ago

I REALLY NEED HELP ILL GIVE BRAINLEISTTT

lord [1]

Answer:

960

Step-by-step explanation:

x = 0.6x + 384

Subtract 0.6x from both sides.

0.4x = 384

Divide both sides by 0.4

x = 960

5 0

3 years ago

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Find the missing angle

tatuchka [14]

M 1: 64
M 2: 49
M 3: 87
M 4: 44

5 0

3 years ago

The product of 7 and x is less than or equal to -21

Mars2501 [29]

Answer:

x needs to be smaller or equal to -3

Step-by-step explanation:

-3x7 = -21

you get there by dividing -21 by 7

example smaller number: -4x7 = -28

4 0

3 years ago

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