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4 years ago

9

Help please loves. This one I"m not sure about.

1 answer:

zvonat [6]4 years ago

5 0

Y=-x^2-2

dy/dx=-2x and d2y/dx2=-2

Since acceleration is a negative constant, when the velocity equals zero, it will be an absolute maximum for y(x)

dy/dx=0 when -2x=0, x=0

y(0)=-2

So the vertex is at the absolute maximum, which is the point (0,-2)

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3. Ricky buys some packs of gum (x) that cost $1.50 and some jawbreakers (y) that cost $ 50.

insens350 [35]

Gfsretunkjkiuyretuiookkbgsad

5 0

3 years ago

Answer these for me please pretty please

anzhelika [568]

Answer:

1. t = 48.654

2. $x = \frac{8}{3}$

3. $s = \frac{49}{4}$

4. $y = \frac{19}{12}$

Step-by-step explanation:

To solve equations using variables, perform inverse operations to undo each part and isolate the variable.

1. $\frac{t}{5.4} =9.01$

Multiply by 5.4 on both sides to undo division.

t = 9.01 * 5.4

t = 48.654

2. $\frac{3}{4}x = 2$

Multiply both sides by the reciprocal of 3/4 which is 4/3.

$x = 2*\frac{4}{3} \\x = \frac{8}{3}$

3. $s + \frac{1}{4} = 12\frac{1}{2}$

Convert 12 1/2 into an improper fraction.

$s + \frac{1}{4} = \frac{25}{2}$

Subtract 1/4 from both sides.

$s + \frac{1}{4} - \frac{1}{4} = \frac{25}{2} - \frac{1}{4}$

To subtract fractions without common denominators, convert 25/2 into a fraction with denominator of 4.

$s = \frac{50}{4} - \frac{1}{4}\\s = \frac{49}{4}$

4. $2\frac{2}{3} + y = 4 \frac{1}{4}$

Subtract 2 2/3 from both sides.

$2\frac{2}{3} - 2\frac{2}{3} + y = 4 \frac{1}{4}- 2\frac{2}{3}$

Convert each fraction into improper fractions and then to common denominators.

$y = \frac{17}{4} - \frac{8}{3}\\\\ y = \frac{51}{12} - \frac{32}{12} \\\\y = \frac{19}{12}$

6 0

4 years ago

One and five twelves minus five sixtes

erica [24]

Answer: 5/12

Step-by-step explanation: 5/12

4 0

3 years ago

What is the difference between a minor and major arc of a circle?

Rufina [12.5K]

Answer:

Hi there!

Given two points on a circle, the <u>minor arc </u>is the<u> shortest</u> arc linking them. The<u> major arc</u> is the <u>longest</u>.

5 0

4 years ago

Read 2 more answers

What's 95% of 85 do not round your answer

TEA [102]

80.75 my dude

(85/100)*95

4 0

3 years ago

Read 2 more answers