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Lyrx [107]
2 years ago
8

20 points plzzz help asap

Mathematics
1 answer:
Agata [3.3K]2 years ago
4 0
It is A I hope that helps for you
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What is 300,567,672,468.78 - 200.67
Marrrta [24]
300567672468.78-200.67=
300567672268.11005
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3 years ago
Evaluate the following expression for x = 4. <br><br><br> 1+3(x-1)-2x
xz_007 [3.2K]

Answer:

2

Step-by-step explanation:

1+3(x-1)-2x

Substitute the value of x into the equation:

1 + 3(4-1) -2 (4)

1 + 3(3)- 8

1 + 9 - 8

2

8 0
3 years ago
In AKLM, m = 86 inches, k = 56 inches and ZL=85°. Find ZM, to the nearest<br> degree.
lara31 [8.8K]
Please show a pic so i can understand better
8 0
2 years ago
3x+3y=10<br> -9x-9y=-30<br> please help
tiny-mole [99]

Answer:

             Infinitely many solutions.

Explanation:

              In this case we gonna use ELIMINATION BY ADDITION method.For that first we are gonna eliminate the terms containing ( X ).

 Equation no 1:

                            3x + 3y = 10

 Equation no 2:

                           -9x - 9y = -30

  Now multiply equation no 1 with (3 )

                           3(3x + 3y) = 3(10)

                              9x + 9y = 30             ( equation no 1 )

   Now ADD both the equations

                            9x + 9y = 30

                           <u> -9x - 9y  =-30</u>

                                       0    = 0

6 0
3 years ago
Jika garis 4x+ay = 8 dan ay=9x + 5 saling tegak lurus,maka nilai a
barxatty [35]

We are given equations as

4x+ay=8

Firstly, we will write in slope intercept form of line

y=mx+b

4x+ay=8

Subtract both sides by 4x

4x+ay-4x=-4x+8

ay=-4x+8

now, we can divide both sides by a

y=-\frac{4}{a} x+\frac{8}{a}

we can find slope

so, we get

m_1=-\frac{4}{a}

we are given second equation as

ay=9x+5

Firstly, we will write in slope intercept form of line

y=mx+b

divide both sides by a

y=\frac{9}{a} +\frac{5}{a}

we can find slope

m_2=\frac{9}{a}

we are given both lines are perpendicular

so, the multiplication of their slopes must  be -1

m_1\times m_2=-1

we can plug values

-\frac{4}{a}\times \frac{9}{a}=-1

now, we can solve for a

\frac{36}{a^2}=-1

Multiply both sides by a

\frac{36}{a^2}\times a^2=1\times a^2

36= a^2

now, we can solve for a

we get

a=-6,a=6...............Answer

4 0
3 years ago
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