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4 years ago

Round 21/2 to a whole number

Mathematics

2 answers:

Misha Larkins [42]4 years ago

8 0

the answer to the question you are asking is 10.5

Stella [2.4K]4 years ago

6 0

Answer by Mikaatkinsbootiful:

$\mathrm{Long\:Division}\:\frac{21}{2}:\quad 10\quad \mathrm{Remainder}1\quad \:\\Convert\:to\:mixed\:number:\:Quotient\frac{Remainder}{Divisor}\\\frac{21}{2}=10\frac{1}{2}\\Mixed number: 10\frac{1}{2}$

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What is the axis of symmetry for f(x) = 2x2 − 4x + 5?

Romashka-Z-Leto [24]

Answer:

Axis of symmetry is

C) x = 1

Step-by-step explanation:

we are given equation as

$2x^2 -4x+5$

we can use axis of symmetry formula

Let's assume we are given quadratic equation as

$y=ax^2+bx+c$

Axis of symmetry is

$x=-\frac{b}{2a}$

now, we can compare both equations

and we get

$a=2,b=-4$

now, we can find axis of symmetry

$x=-\frac{(-4)}{2\times 2}$

$x=-\frac{(-4)}{4}$

$x=1$

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4 years ago

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olganol [36]

Okay what’s the question ?

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3 years ago

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Which equations are equivalent to Y=2/3X-4 when written in slope-intercept form? Check all that apply. A =3X-2Y=4. B=2X-3Y=12. C

klemol [59]

Answer:

B and C

Step-by-step explanation:

Rearrange each equation into slope- intercept form

3x - 2y = 4 ( subtract 3x from both sides )

- 2y = - 3x + 4 ( divide all terms by - 2 )

y = $\frac{3}{2}$ x - 2 ← not equivalent

2x - 3y = 12 ( subtract 2x from both sides )

- 3y = - 2x + 12 ( divide all terms by - 2 )

y = $\frac{2}{3}$ x - 4 ← equivalent

- 4(2x - 3y ) = - 48 ( divide both sides by - 4 )

2x - 3y = 12 ← same as B ⇒ equivalent

2(x + 6) = 3y

3y = 2x + 12 ( divide all terms by 3 )

y = $\frac{2}{3}$ x + 4 ← not equivalent

2x - 3y = 4 ( subtract 2x from both sides )

- 3y = - 2x + 4 ( divide all terms by - 3 )

y = $\frac{2}{3}$ x - $\frac{4}{3}$ ← not equivalent

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3 years ago

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Kiran scored 223 fewer points in a computer game than Tyler. Kiran scored 409 points. Which equation would Kiran use to determin

LenKa [72]

Answer:

The equation is:

$409 = T - 223$

And the solution is:

$T = 632$

Step-by-step explanation:

Given

Represent Kiran with K and Tyler with T

Kiran score is represented as:

$K = 409$

Also, Kiran scored 223 less than Tyler.

This is represented as:

$K = T - 223$

Substitute 409 for K

$409 = T - 223$

Make T the subject

$T = 409 +223$

$T = 632$

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3 years ago

4x-2y=12. Solve for y

crimeas [40]

Answer:

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Step-by-step explanation:

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