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3 years ago

Nevaeh has read 168 pages of a 210- page book. What percent of the book has Nevaeh not read?

Mathematics

1 answer:

jarptica [38.1K]3 years ago

6 0

Answer:

168 ÷ 210 X 100

80 % is your answer

Step-by-step explanation:

folloe me plzzz

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Help with homework pls

Tems11 [23]

It would be an open circle with an arrow going to the right

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3 years ago

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Transform the given quadratic function into vertex form f(x) = quadratic function into vertex form f(x) = quadratic function int

melisa1 [442]

Answer:

Vertex form: $f(x) =(x +\frac{7}{2})^2 -\frac{53}{4}$

The vertex is $(-\frac{7}{2},-\frac{53}{4})$

Step-by-step explanation:

For a general quadratic function the form is:

$ax ^ 2 + bx + c$

For the function

$f(x) = x ^ 2+ 7x -1$

The values of the coefficients for the function are the following: $a = 1$ , $b =7$ , $c = -1$

Take the value of b and divide it by 2. Then, the result obtained squares it.

$\frac{b}{2}= \frac{7}{2}$

$(\frac{b}{2})^2=(\frac{7}{2})^2=\frac{49}{4}$

Add and subtract $\frac{49}{4}$

$f(x) = (x ^ 2 +7x +\frac{49}{4}) -\frac{49}{4}- 1$

Write the expression of the form

$f(x) = (x+\frac{b}{2})^2 +k$

$f(x) =(x +\frac{7}{2})^2 -\frac{53}{4}$

The vertex is $(-\frac{7}{2},-\frac{53}{4})$

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3 years ago

What is it called when a columns filled with pairs of numbers that have the same ratio?

Furkat [3]

That is a ratio table.

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3 years ago

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{3x + y = 5<br> {5x + 2y = 9<br> Solve using a matrix

alukav5142 [94]

Answer:

Y×-2=-2y

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2 years ago

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mel-nik [20]

Answer:

13 sides

Step-by-step explanation:

1980 = (n − 2)×180 Formula for number of sides

n − 2 = 1980/180 Divide both sides by 180

n - 2 = 11

+ 2 + 2 Add 2 to both sides

n = 13

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3 years ago