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3 years ago

How do you do this problem

Mathematics

2 answers:

elena-14-01-66 [18.8K]3 years ago

5 0

Answer:

x=24

Step-by-step explanation:

subtract from both sides

Brums [2.3K]3 years ago

5 0

Answer:

x=24

Step-by-step explanation:

1/3x+2=2/3x-6

2=1/3x-6

8=1/3x

x=24

oim pretty sure i did it right but im t the best at fractions tho but...

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4 years ago

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3 years ago

Need to find shaded area of figure please help!

devlian [24]

Answer:

39 ft^2

Step-by-step explanation:

Find the area of the triangle and subtract the area of the square.

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3 years ago

Given the following two pair for values x1 = 5, y1 = 4 and x 2 = 1, y2 = .

LiRa [457]

Answer:

Given the following two pair for values x 1 = 5, y 1 = 4 and x 2 = 1, y 2 = .

Calculate the Pythagorean triples associated with each pair

----------------------

x 1 = 5, y 1 = 4

Ans:: sqrt[5^2+4^2] = sqrt[41

-----------------------------

and x 2 = 1, y 2 = ?

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6 0

3 years ago

Find a quadratic model for the set of values: (-2, -20), (0, -4), (4,-20) Show your work

Usimov [2.4K]

A quadratic function:
$y=ax^2+bx+c$

First, take the point (0,-4) and plug the values (x,y) into the equation:
$-4=a \times 0^2+b \times 0 +c \\
-4=c$

So the equation is $y=ax^2+bx-4$ .

Now plug the values of the other two points into the equation and set up a system of equation:
$-20=a \times (-2)^2+b \times (-2)-4 \\
-20=a \times 4^2+b \times 4-4 \\ \\
-20+4=4a-2b \\
-20+4=16a+4b \\ \\
-16=4a-2b \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | \div 2 \\
-16=16a+4b \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\div 4 \\ \\
-8=2a-b \\
\underline{-4=4a+b} \\
-12=6a \\
\frac{-12}{6}=a \\
a=-2 \\ \\
-8=2a-b \\
-8=2 \times (-2)-b \\
-8=-4-b \\
-8+4=-b \\
-4=-b \\
b=4$

The function is:
$\boxed{y=-2x^2+4x-4}$

5 0

3 years ago

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