71. Evaluate a + a3 - 4 * 4 when a = 2

Answer:

-4

Step-by-step explanation:

solve expression using pemdas

(shown in image)

Answer:

[tex] {y}^{3} + x {e}^{4} = 3 {x}^{2} - 10[/tex]

introduce dy/dx :

[tex] \frac{d( {y}^{3} + x {e}^{4} ) }{dx} = \frac{d( {3x}^{2} - 10) }{dx} \\ \\ 3 {y}^{2} \frac{dy}{dx} + {e}^{4} = 6x - 0 \\ \\ {3y}^{2} \frac{dy}{dx} = 6x - {e}^{4} \\ \\ { \boxed{ \boxed{\frac{dy}{dx} = \frac{6x - {e}^{4} }{ {3y}^{2} } }}}[/tex]

Answer:

Simple Division. See explanation.

Step-by-step explanation:

Simply put, 5 1/3 divided by 2 2/7 is  2.333333 (continues on forever)

This in fraction form however is 2 1/3.

Final answer: 2 1/3 in fraction form, and 2.333 in decimal.

Answer:

Step-by-step explanation:

where is the questions?

Answer:

1,3

2,4

5,7

6,8

Step-by-step explanation:

congruent  angles are angles across from each other and they equal the same

Answer:

252 Inches cube

Step-by-step explanation:

So for this question you need to find the area of cross section which is the H,

2 Times (3 Inches by 7 Inches) {The 2 same shape}

+

3 Inches by 7 Inches {The middle shape}

For the H Shape = 63 Inches Square

Then you'll time the lenght which is given 4 Inches

63 Inches square ×4 Inches

252 Inches Cube

The volume of this shape will be 252 Inches cube

Hope this helps dont hesitate to ask any question!!

Mark me as brainliest aslo appreciated!! Tq

Answer:

The answer is 5t

Step-by-step explanation:

Answer:

-6 and 1

Step-by-step explanation:

-6*1=-6

-6+1=-5

Answer:

600 is 100 times as much as 6.

Step-by-step explanation:

6 x ? = 600

600 divided by 6 equals 100 so 6 x 100 = 600.

Answer:

[tex]s = cB- 8 \\ cB = s + 8 \\ \\ c = \frac{s + 8}{B} \\ \\ c = \frac{s}{B} + \frac{8}{B} [/tex]

I hope I helped you^_^

Answer:

18 .........................

Answer:

the answer is 18.............

9514 1404 393

Answer:

  n^2 +n +4

Step-by-step explanation:

Since the divisor has only one term, the quotient is formed by dividing the terms one at a time.

  [tex]\dfrac{4n^4+4n^3+16n^2}{4n^2}=\dfrac{4n^4}{4n^2}+\dfrac{4n^3}{4n^2}+\dfrac{16n^2}{4n^2}=\boxed{n^2 +n +4}[/tex]

__

Your long division tableau will subtract n^2×4n^2 = 4n^4 to form the new dividend 4n^3+16n^2. Then you will subtract n×4n^2 = 4n^3 to get the new dividend of 16n^2. The final quotient term is 4, and you will subtract 4×4n^2 to get a remainder of 0. You will have written the quotient as n^2+n+4.

It would be basically all of them. Hope this helps.

Step-by-step explanation:

We let A be the set of those who owned an iPhone, B be the set of those who owned a Blackberry,

and C those that owned an Android. Therefore we have |A| = 60, |B| = 75, and |C| = 30. Also,

we know that |A ∩ B| = 40, |A ∩ C| = 12 and |B ∩ C| = 8. Finally, |A ∩ B ∩ C| = 3. Therefore,

by the principle of inclusion/exclusion, we have

|A ∪ B ∪ C| = |A| + |B| + |C| − |A ∩ B| − |A ∩ C| − |B ∩ C| + |A ∩ B ∩ C|

= 60 + 75 + 30 − 40 − 12 − 8 + 4

= 109

(a) Since there are 300 total people, there are 191 without one of the types of phone.

(b) Since |A ∩ B| = 40 and |B| = 75, there are 35 people with a Blackberry that don’t own

an iPhone.

(c) Since |B ∩ C| = 8 and |B| = 75, there are 67 people with a Blackberry that don’t own

an Android.

It is also helpful to draw Venn diagrams for this problem.

n = 3

i'm not sure if the x was a typo, but n is 3

7/9 - 1/9 = 6

6 = 2n

6 divided by 2 is 3

9514 1404 393

Answer:

  -$25  (a loss of $25)

Step-by-step explanation:

Profit is the difference between revenue and cost.

  profit = $150 -175 = -$25

The cheerleaders took a $25 loss on their bake sale.

__

Additional comment

The wording "made $150" can be interpreted two ways. We have taken it to mean the revenue from sales was $150. The same wording could also be used to indicate the profit was $150.

Answer:

- x^2 - 2x

Step-by-step explanation:

3 ( 5x^2 + 4 + 2x) - 16x^2 -8x -12

15 x^2 + 12 + 6x - 16x^2 - 8x - 12

-x^2 - 2x

Work Shown:

L = d+9 = length along the horizontal

W = 10 feet = width along the vertical

P = 2(L+W) = perimeter of rectangle = 70 feet

70 = 2(d+9+10)

70/2 = d+19

35 = d+19

d+19 = 35

d = 35-19

d = 16

The deep end is 16 feet wide

Answer: cant see

Step-by-step explanation:

Answer

divide by 2? bro come on now you got this

Step-by-step explanation:

...

Hello there!

We are given the equation:

[tex] \displaystyle \large{jr + se = jb + f}[/tex]

We are going to isolate j. First, subtract both sides by jb.

[tex] \displaystyle \large{jr + se - jb = jb - jb+ f} \\ \displaystyle \large{jr + se - jb = f}[/tex]

Then subtract both sides by se to leave only jr and jb.

[tex] \displaystyle \large{jr + se - jb - se= f - se} \\ \displaystyle \large{jr - jb = f - se}[/tex]

For jr-jb, we can common factor out the j-term.

[tex] \displaystyle \large{j(r - b)= f - se}[/tex]

For r-b, treat it as one term. Then we divide both sides by r-b.

[tex] \displaystyle \large{ \frac{j(r - b)}{r - b} = \frac{f - se}{r - b} } \\ \displaystyle \large{ j= \frac{f - se}{r - b} }[/tex]

Hence, j = f - se / r - b

Alternate Solution

This is an alternate solution. We can simplify the fractional expression by separating each terms.

[tex] \displaystyle \large{ j= \frac{f - se}{r - b} } \\ \displaystyle \large{ j= \frac{f}{r - b} + \frac{ - se}{r - b} }[/tex]

Since se is in negative, we replace + as - and cancel -se to se.

[tex] \displaystyle \large{ j= \frac{f - se}{r - b} } \\ \displaystyle \large{ j= \frac{f}{r - b} - \frac{ se}{r - b} }[/tex]

The simplifed answer is j = ( f / r - b ) - ( se / r - b l

These two answers work and are correct.

Let me know if you have any questions!

Topic: Literal Equation (Factorization Involved)

From either side of x = -2, f(x) approaches -5. The plot also shows it's continuous there, so each of these have a value of -5.

Answer:

N=T/U

Step-by-step explanation:

T=UN

Get N alone=

Divide U out

divide u both sides

t/u=n

9514 1404 393

Answer:

  $13.60

Step-by-step explanation:

Julio worked 35 -31 = 4 overtime hours. For those 4 hours, he was paid at the rate 1.2r. Then his earnings were ...

  31r +4(1.2r) = 486.88

  35.8r = 486.88

  r = 486.88/35.8 = 13.60

Julio's normal hourly rate is $13.60.

_____

Why do we believe this is reasonable?

Answer:

c is the correct answer..........

Answer:

c

Step-by-step explanation:

Answer:

impulse bullying.

Step-by-step explanation:

Impulse bullying is like he is less likely to be a gang member. His bullying is more impulsive and may appear to be more random. Even when authorities are likely to impose penalties, he finds it impossible to prevent himself from engaging in the activity. He might be suffering from ADHD. Medication, behavioral therapy, and social skills training may help him. He will also most likely be bullied.

[tex] Answer [/tex]

[tex] 100000[/tex]

x-coordinate = -7

Step-by-step explanation:

[tex] - 16 = 3x + 5 \\ - 21 = 3x \\ x = - 7[/tex]

substitute -16 in y

Answer:

The dimensions that minimize the cost of materials for the cylinders have radii of about 3.628 cm and heights of about 7.256 cm.

Step-by-step explanation:

A cylindrical can holds 300 cubic centimeters, and we want to find the dimensions that minimize the cost for materials: that is, the dimensions that minimize the surface area.

Recall that the volume for a cylinder is given by:

[tex]\displaystyle V = \pi r^2h[/tex]

Substitute:

[tex]\displaystyle (300) = \pi r^2 h[/tex]

Solve for h:

[tex]\displaystyle \frac{300}{\pi r^2} = h[/tex]

Recall that the surface area of a cylinder is given by:

[tex]\displaystyle A = 2\pi r^2 + 2\pi rh[/tex]

We want to minimize this equation. To do so, we can find its critical points, since extrema (minima and maxima) occur at critical points.

First, substitute for h.

[tex]\displaystyle \begin{aligned} A &= 2\pi r^2 + 2\pi r\left(\frac{300}{\pi r^2}\right) \\ \\ &=2\pi r^2 + \frac{600}{ r} \end{aligned}[/tex]

Find its derivative:

[tex]\displaystyle A' = 4\pi r - \frac{600}{r^2}[/tex]

Solve for its zero(s):

[tex]\displaystyle \begin{aligned} (0) &= 4\pi r - \frac{600}{r^2} \\ \\ 4\pi r - \frac{600}{r^2} &= 0 \\ \\ 4\pi r^3 - 600 &= 0 \\ \\ \pi r^3 &= 150 \\ \\ r &= \sqrt[3]{\frac{150}{\pi}} \approx 3.628\text{ cm}\end{aligned}[/tex]

Hence, the radius that minimizes the surface area will be about 3.628 centimeters.

Then the height will be:

[tex]\displaystyle \begin{aligned} h&= \frac{300}{\pi\left( \sqrt[3]{\dfrac{150}{\pi}}\right)^2} \\ \\ &= \frac{60}{\pi \sqrt[3]{\dfrac{180}{\pi^2}}}\approx 7.25 6\text{ cm} \end{aligned}[/tex]

In conclusion, the dimensions that minimize the cost of materials for the cylinders have radii of about 3.628 cm and heights of about 7.256 cm.