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3 years ago

Plzzz help square paralellogram

Mathematics

1 answer:

Brums [2.3K]3 years ago

7 0

Answer:

1. x=12

2. x=7

Step-by-step explanation:

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Yard

Romashka [77]

Oufoydoydoskdktdotdodtotdclhclhcclhhc

5 0

3 years ago

What two numbers can add to 4 but multiple to -12

olasank [31]

Answer:

Numbers: 6 and -2

Step-by-step explanation:

Equations

This question can be solved by inspection. It's just a matter of factoring 12 into two factors that sum 4. Both numbers must be of different signs and they are 6 and -2. Their sum is indeed 6-2=4 and their product is 6*(-2)=-12.

However, we'll solve it by the use of equations. Let's call x and y to the numbers. They must comply:

$x+y=4\qquad\qquad [1]$

$x.y=-12\qquad\qquad [2]$

Solving [1] for y:

$y=4-x$

Substituting in [2]

$x(4-x)=-12$

Operating:

$4x-x^2=-12$

Rearranging:

$x^2-4x-12=0$

Solving with the quadratic formula:

$\displaystyle x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

With a=1, b=-4, c=-12:

$\displaystyle x=\frac{-(-4)\pm \sqrt{(-4)^2-4(1)(-12)}}{2(1)}$

$\displaystyle x=\frac{4\pm \sqrt{16+48}}{2}$

$\displaystyle x=\frac{4\pm 8}{2}$

The solutions are:

$\displaystyle x=\frac{4+ 8}{2}=6$

$\displaystyle x=\frac{4- 8}{2}=-2$

This confirms the preliminary results.

Numbers: 6 and -2

7 0

3 years ago

1.05 x 10^4 in standard notation

vivado [14]

Answer:

10,500

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

PLEASE HELP ONLY ANSWER IF YOU KNOW

densk [106]

A: Speed is Independent as it can be anything with no restrictions. Gas mileage is dependent as it relies on the value of speed for its value to be decided.

B: The first letter of speed is "S" so it can represent the variable. The first letter of mileage is "M" so the variable can be represented by that letter. It really can be any letter.

C: no context

D: no context

5 0

3 years ago

Read 2 more answers

helpppppp please I need help on this question if you can explain i will give brainliest if you can't then font please

lara [203]

Answer:

The answer is A

Step-by-step explanation:

Down 2 right 3. You can figure this out for other problems like this by choosing any point on the graph and following the slope. It's down because the 2 is negative and 3 is positive to it goes to the right.

5 0

2 years ago