What variable do you eliminate?
4x + 8y = 20
-4x + 2y = -30
x because they have opposite signs
O
O
y because they don't have opposite signs
x but you have to multiply the top equation by 2, and the bottom equation by -2
O y but you
y but you have to multiply the bottom equation by 4

Answer:

WHAT SUBJECT IS THAT? TELL ME WHAT SUBJECT AND I'LL ANSWER IT PROPERLY

Answer:

can you please provide more context?

Step-by-step explanation:

Answer

43

Step-by-step explanation:

so first 6544-x233

then 45 x 1 thats your answer

Answer:

the answer is 43

Step-by-step explanation:

4 = 3s joe biden

Step-by-step explanation:

y=mx +b

b= 5

12.5= 10m+5

10m = 7.5

m= 0.75

y=0.75x +5

..........

at x= 20 , y= 20

at y= 27.5 , x= 30

at x= 40 , y= 35

Answer:

[tex]\boxed{\textsf{ Hence the percentage probability of getting a not odd is \textbf{ 50\% }.}}[/tex]

Step-by-step explanation:

Given that we roll a 6 sided dice . We need to find the probability that the outcome is not a odd number . So , when we roll a dice then the possible outcomes are ,

[tex]\sf\implies Sample\ space = \{ 1,2,3,4,5,6 \}[/tex]

And the total number of possible outcomes is 6 . That is ,

[tex]\sf\implies n(Sample \ space )= 6 [/tex]

Now the total number of non odd numbers that is even numbers is 3 ( 2 , 4 & 6) .

[tex]\sf\implies n(Outcomes_{(even)})= 3 [/tex]

Now , lets use the formula of Probability that is ,

Probability :-

[tex]\qquad\boxed{\boxed{\sf P = \dfrac{Total \ number \ of \ favourable\ outcomes }{Total \ number \ of \ possible\ outcomes }}}[/tex]

Now put on the respective values :-

[tex]\sf\implies P( getting\ a \ not \ odd ) = \dfrac{Total \ number \ of \ favourable\ outcomes }{Total \ number \ of \ possible\ outcomes } \\\\\sf\implies P( getting\ a \ not \ odd ) =\dfrac{3}{6} \\\\\sf\implies \boxed{\sf P( getting\ a \ not \ odd ) = \dfrac{1}{2} }[/tex]

[tex]\rule{200}2[/tex]

Expressing the probability as percentage :-

[tex]\sf\implies \% \ of \ getting \ non \ odd = Probability \times 100 \\\\\sf\implies \% \ of \ getting \ non \ odd = \dfrac{1}{2}\times 100 \\\\\sf\implies \boxed{\pink{\frak{ \% \ of \ getting \ non \ odd = 50\%}}}[/tex]

Answer:

A

Step-by-step explanation:

I just took the quiz

Iota is an imaginary unit number that is denoted by i and the value of iota is [tex]i=\sqrt{-1}[/tex]

Letter A represent [tex]z^{3}[/tex]

Given that, z = 1 - i

Now finding  [tex]z^{3}[/tex] ,

                    [tex]z^{3}=(1-i)(1-i)(1-i)\\\\=(1+i^{2-2i} )(1-i)\\\\=1+i^{2}-3i-i^{3}+2i^{2}\\\\=1-1-3i+i-2\\\\=-2-2i[/tex]

In given diagram, it is observed that Point A is  [tex]-2-2i[/tex].

Learn more:

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Answer:

14) 9.2  15) 12.9

Step-by-step explanation:

14) cos(52) = x/15

x = 15cos(52)

x = 9.2349

x = 9.2

15) cos(22) = 12/x

x = 12/cos(22)

x = 12.9424

x = 12.9

Answer:

13x

Step-by-step explanation:

hope this helps

Answer:

9.9 feet per second

Step-by-step explanation:

y=9.5+0.4

y=9.9

Marcella's average speed in feet per seconds is,

⇒ y = 9.54 feet

A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).

Given that;

The equation which represents the line of best fit for the distance in feet) that Marcella traveled over time (in seconds) based on several races she ran is,

⇒ y = 9.50x + 0.4

Hence, Marcella's average speed in feet per seconds is,

y = 9.50x + 0.4

Put x = 1;

y = 9.50 × 1 + 0.4

y = 9.50 + 0.4

y = 9.54 feet

Thus, Marcella's average speed in feet per seconds is,

⇒ y = 9.54 feet

Learn more about the function visit:

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#SPJ5

Answer:

80.6

Step-by-step explanation:

1%-> 6.2

13%-> 6.2x13=80.6

Answer:

Where is it?

Step-by-step explanation:

Where is the question exactly?

9514 1404 393

Answer:

  x = {-0.44, 1.69}

Step-by-step explanation:

Multiply by the denominator to eliminate the fraction.

  3 = x(4x -5)

  4x^2 -5x -3 = 0 . . . . . subtract 3 and put in standard form

Using the quadratic formula with a=4, b=-5, c=-3, we have the solutions as ...

  [tex]x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}=\dfrac{-(-5)\pm\sqrt{(-5)^2-4(4)(-3)}}{2(4)}\\\\x=\dfrac{5\pm\sqrt{73}}{8}\approx \{-0.443, 1.693\}[/tex]

Solutions rounded to hundredths are ...

  x = -0.44

  x = 1.69

_____

A graphing calculator can show the x-intercepts easily, so it works well to write the equation in the form

  f(x) = 0

  3/(4x -5) -x = 0

Answer:

the answer is A 6 apples

Step-by-step explanation: you want to divide 38 by 8 if you do that you get 4 bags with 6 apples left

Answer: Carlos can fill 4 bags and have 6 left over

Step-by-step explanation:

The first step is to divide 38 by 8.

38 ÷ 8 = 4 with 6 left over.

That means that Carlos will be able to fill 4 bags and have 6 left over.

The answer is A, 6. Hope this helps, and good luck!

Answer:

200

Step-by-step explanation:

Have a great day! :)

Answer:

200

Step-by-step explanation:

When you add 100 and 100 together, the sum will be 200.

Answer:

It's decreasing by 7 each time

Step-by-step explanation:

Answer:

64 sq m.

Step-by-step explanation:

Answer:

siny=xz/yz

sin45=y/15√2

15√2×1/√2=y

y=15

Answer:

i think it is either 31 or 15.5

Step-by-step explanation:

Answer:

Step-by-step explanation:

pythagoras theorem.

a squared plus b squared equals hypotenuse squared

a=7

b=24

49+576=625

square root is 25

that's your answer. c=25.

Answer:

Your answer is -4

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Answer:

x = 5/3

x = -4

-Evaluate the exponent

-Multiply the numbers

-Add the numbers

-Evaluate the square root

-Multiply the numbers

Answer:

157 inches

Step-by-step explanation:

You would use the circumference formula which is πd

C=25(3.14) or 78.5

so two turns of the wheel is 78.5*2 or 157”

Answer:

m=-1/2

Step-by-step explanation:

f(6)=-2 is (6,-2) and f(-4)=3 is (-4,3)

the equation for slope (m) is (y2-y1)/(x2-x1)

label the points:

x1=6

y2=-2

x2=-4

y2=3

now substitute into the equation:

m=(3--2)/(-4-6)

m=5/-10

m=-1/2

the slope is -1/2

hope this helps!

Answer:

area of trapezoid==1/2 h(d1+d2)=7.5/2(10+(5+2×3+5))=97.5in²

area of semi circle=1/2 πr²=1/2 ×3.14×3²=14.13in²

area of shaded region=97.5-14.13=83.37in²

Answer:

outside shape = (10x7.5)+(2)(0.5)(7.5x3) = 97.5 in^2

circular cutout = (3.14)(3^2)(0.5) = 14.1 in^2

97.5-14.1 = 83.4 in^2

Answer:

B

Step-by-step explanation:

Answer:

3/4 is the ratio of men to women in the simplest form.

Answer:

y=2x-4

Step-by-step explanation:

To find an equation perpendicular to another one, you must find the negative inverse of the slope.

In this case, -1/2 has an inverse of -2, but because we're finding the negative inverse, the two negatives cancel out and we get 2, the slope of our perpendicular equation, which crosses the initial equation, making a right angle.

Answer:

-4y=40

y=-10

x-3(-10)=17

x-30=17

x=17+30

x=47

Step-by-step explanation:

Answer:

x= 5

y= -4

Step-by-step explanation:

x= 17+3y so you substitute what you got for x in so

17 +3y +7y = -23

10y=-40

y=-4 now you put -4 in for y in the first equation

x = 17 + (3 times -4)

x = 17 - 12

x=5