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3 years ago

Can someone please help me with this?

Mathematics

1 answer:

Norma-Jean [14]3 years ago

3 0

Answer:

i cant see that

Step-by-step explanation:

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Which of the following is/are appropriate measure(s) of

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Step-by-step explanation:

you can relate both the unit in one form

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3 years ago

What is h(x) = 7+ 10x + x2 written in vertex form?

Roman55 [17]

Answer:

h(x) = $(x+5)^{2}$ -18

Step-by-step explanation:

-b/2a is the formula to find the vertex's x coordinate.

-10/2(1) = -5 and "(x+5)" represents a translation to the left 5 units, so that must be the answer

5 0

3 years ago

What are the steps to this?

Nina [5.8K]

Answer:

Step-by-step explanation:

This is a right triangle

a² + b² = c²

16² + 12² = x²

256 + 144 = x²

400 = x²

take the square root of both sides

x = 20

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3 years ago

Can someone help me with good strategies for 2 digit multiplication ( 14 x 14 )

ch4aika [34]

Just multiply my friend. The answer is 196

5 0

3 years ago

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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

Read 2 more answers