Ayana has 220 in her piggy bank. of those, 45% are pennies. how many coins are not pennies

Answers

Answer 1

Answer: 220*45%=99
220-99=121
Answer; 121 coins are not pennies

Answer 2

Answer: well if she has 220 in her piggy bank then 100% of that number is 220 so 45% is a little under 50% it's going to be 55%. see how I did that?

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In which quadrant is the number –14 – 5i located on the complex plane?

Answers

The complex plance is just like the trigonometric plane except the case is just the x plane pertains to the imaginary part of teh number and the y axis pertains to the real part of the number. In the number -14-15i, x axis is negative and y axis is also negative. Hence the number should belong to quadrant III.

the answer will be 5i+6

Peaches are being sold for $2 per pound. If x represents the number of pounds of peaches bought and y represents the total cost of the peaches, which best describes the values of x and y?

Answers

Answer with explanation:

Cost of Peaches per pound = $ 2

If x, is the total number of pound of peaches bought = x

→Total cost of pound of peaches bought = Cost of Peaches per pound × Total number of pound of peaches bought

It is given that,y is the total cost of peaches.

→→y=$ 2 × x

→→y=2 x→→Relationship between value of x and y

Total Cost of peaches=price of 1 pound x number of pounds bought
y=2x

Ex 2.11
20) A curve y''=12x-24 and a stationary point at (1,4). evaluate y when x=2.

Answers

So, dy/dx=0 at the point (1, 4) - that is where x=1 and y=4.

$\int { 12x-24dx } \n \n =\frac { 12{ x }^( 2 ) }{ 2 } -24x+C\n \n =6{ x }^( 2 )-24x+C$

$\n \n \therefore \quad { f }^( ' )\left( x \right) =6{ x }^( 2 )-24x+C$

But when x=1, f'(x)=0, therefore:

$0=6-24+C\n \n 0=-18+C\n \n \therefore \quad C=18$

$\n \n \therefore \quad { f }^( ' )\left( x \right) =6{ x }^( 2 )-24x+18$

Now:

$\int { 6{ x }^( 2 ) } -24x+18dx\n \n =\frac { 6{ x }^( 3 ) }{ 3 } -\frac { 24{ x }^( 2 ) }{ 2 } +18x+C$

$=2{ x }^( 3 )-12{ x }^( 2 )+18x+C\n \n \therefore \quad f\left( x \right) =2{ x }^( 3 )-12{ x }^( 2 )+18x+C$

Now when x=1, y=4:

$4=2-12+18+C\n \n 4=8+C\n \n C=4-8\n \n C=-4$

$\n \n \therefore \quad f\left( x \right) =2{ x }^( 3 )-12{ x }^( 2 )+18x-4$

Now when x=2,

$f\left( x \right) =2\cdot { 2 }^( 3 )-12\cdot { 2 }^( 2 )+18\cdot 2-4\n \n =16-48+36-4\n \n =0$

So when x=2, y=0.

$y''=12x-24\ny'=\int 12x-24\, dx\ny'=6x^2-24x+C\n\n0=6\cdot1^2-24\cdot1+C\n0=6-24+C\nC=18\ny'=6x^2-24x+18\n\ny=\int 6x^2-24x+18\, dx\ny=2x^3-12x^2+18x+C\n\n4=2\cdot1^3-12\cdot1^2+18\cdot1+C\n4=2-12+18+C\nC=-4\n\n 2x^3-12x^2+18x-4$

$y(2)=2\cdot2^3-12\cdot2^2+18\cdot2-4\ny(2)=16-48+36-4\n\boxed{y(2)=0}$

the Gonzales family has three children. On summer break, they went to an amusement park. They bought 3 child tickets for 18.50 and 2 adult tickets. If they spent a total of 104.50, how much was the price of each adult ticket?

Answers

Answer: $24.50 is the price for each adult ticket.

Step-by-step explanation:

1. First we find out the price of the childrens' tickets.

$18.50 x 3 = $55.50

2. Subtract kids tickets from total cost to get adults tickets.

104.50 - 55.50 = 49.00

3. $49 is the price for both adult tickets so we need to divide this by 2.

49/2= 24.50

In right triangle ABC with the right angle at C, sin A= 2x + .1 and cos B = 4x - .7. Determine and state the vaule of x.

Answers

Imagine $\angle A$ at the top of the triangle and $\angle B$ at the bottom. (or used the attached picture for reference)

$\sin A= (opposite)/(hypotenuse)$

$\cos B = (adjacent)/(hypotenuse)$

One thing to note, however, is that the side opposite $\angle A$ is the same side as the one adjacent to $\angle B$ ! Thus $\sin A=\cos B$ .

Substitute these values for $2x+0.1$ and $4x-0.7$ and solve.

$4x-0.7=2x+0.1 \n 4x=2x+0.8 \n 2x=0.8\n \boxed{x=0.4}$

For which pairs of functions is (f circle g) (x)?f (x) = x squared and g (x) = StartFraction 1 Over x EndFraction
f (x) = StartFraction 2 Over x EndFraction and g (x) = StartFraction 2 Over x EndFraction
f (x) = StartFraction x minus 2 Over 3 EndFraction and g (x) = 2 minus 3 x
f (x) = one-half x minus 2 and g (x) = one-half x + 2

Answers

Ok so I think the fraction is 2-241x because I did this before

Answer:

2-241x

Step-by-step explanation:

Other Questions

Which equation correctly describes the relationship between the measures of the angle and arcs formed by the intersecting secant and tangent?m∠1=1/2(mJK−mKL) m∠1=1/2(mJK+mKL) m∠1=1/2mJK m∠1=mJK−mKL

To get from the post office to the library, Sindy walked due north and then due east. The distance Sindy walked east is 20 meters more than the distance she walked north. If Sindy were able to walk directly from the post office to the library in a straight line, she would have walked 150 meters. Suppose x represents the distance Sindy walked north. Which equation can be used to find x?x^2 (x 20)^2=150^2202=x^2-150^2x (x 20)=150x^2 (x 150)^2=20^2

a fraction that is equal to the decimal