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2 years ago

Need now for study guide

Mathematics

1 answer:

likoan [24]2 years ago

8 0

Answer:

17 cm.

Step-by-step explanation:

Because 12 cm + 5 cm. is 17 cm.

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What is the function rule

kirza4 [7]

Answer:

the function rule is y=2x-2

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2 years ago

PLLLLLSSSS Heeeellppp ill mark brainliest I promisseeeeeeee plsssss

WARRIOR [948]

Answer:

$2\,(x-1)^2=4$

which is the first option in the list of possible answers.

Step-by-step explanation:

Recall that the minimum of a parabola generated by a quadratic expression is at the vertex of the parabola, and the formula for the vertex of a quadratic of the general form:

$y=ax^2+bx+c$

is at $x_{vertex}=\frac{-b}{2\,a}$

For our case, where $a=2\,\,, b=-4\,\,,\,\,and \,\,c=-2$ we have:

$x_{vertex}=\frac{-b}{2\,a}\\x_{vertex}=\frac{4}{2\,*\,2}\\x_{vertex}=1$

And when x = 1, the value of "y" is:

$y(x)=2x^2-4x-2\\y(1)=2(1)^2-4(1)-2\\y(1)=2-6\\y(1)=-4\\y_{vertex}=-4$

Recall now that we can write the quadratic in what is called: "vertex form" using the coordinates $(x_{vertex},y_{vertex)$ of the vertex as follows:

$y-y_{vertex}=a\,(x-x_{vertex})^2$

Then, for our case:

$y-(-4)=2\,(x-1)^2\\y=2\,(x-1)^2-4$

Then, for the quadratic equal to zero as requested in the problem, we have:

$y=2\,(x-1)^2-4=0\\2\,(x-1)^2-4=0\\2\,(x-1)^2=4$

5 0

2 years ago

Type the correct answer in the box. Use numerals instead of words.

asambeis [7]

Answer:

The answer is 7,540 to the nearest tenth. If I'm wrong put it in the comments olease

4 0

1 year ago

Which value, in order, will complete the table?

tia_tia [17]

Answer: The answer is the first choice.

Explanation:

Because you must find the sin of the x values in the table.

Sin(7pi/6) = -1/2

Sin(5pi/4) = -sqrt 2/2

Sin(4pi/3) = -sqrt 3/2

4 0

2 years ago

CAN SOMEONE PLS HELP ME ON THIS ONE.....

r-ruslan [8.4K]

Answer:

Years 3-4 and the percentage change was by 8%. Please vote Brainliest!

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers