please help with this one. i will give brainliest

9514 1404 393

Answer:

Step-by-step explanation:

Let q represent the number of quarters. Then the number of nickels is 68-q, and the number of cents in the jar is ...

  25q +5(68 -q) = 800

  20q +340 = 800 . . . . simplify

  20q = 460 . . . . . . . . subtract 340

  q = 23 . . . . . . . . . . . divide by 20; this is the number of quarters

  68-q = 45 . . . . . . . find the number of nickels

The jar contains 23 quarters and 45 nickels.

Answer:

f(x)=(x+5)(x-2)

g(x)=(2x+1)(x-2).

x=10x+2

x=3x-2

x=12×+1

x=13

A function is defined as a relation between a set of inputs having one output each.

The point of intersection between the function f(x) and g(x) is x = 4.

A function is defined as a relation between a set of inputs having one output each.

We have,

f(x) = ( x + 5 ) ( x - 2 )

g(x) = ( 2x + 1 ) ( x - 2 )

To find the points of intersection between the two functions we must equal the function.

f(x) = g(x)

( x + 5 ) ( x - 2 ) = ( 2x + 1 ) ( x - 2 )

( x - 2 ) gets canceled

x + 5 = 2x + 1

5 - 1 = 2x - x

4 = x

x = 4

This means that at x =4 the function f(x) and g(x) intersect.

we can see that at x = 4 both the functions have the same value.

f(x) = ( x + 5 ) ( x - 2 ) = ( 4 + 5 ) ( 4 - 2 ) = 9 x 2 = 18

g(x) = ( 2x + 1 ) ( x - 2 ) = ( 2 x 4 + 1 ) ( 4 - 2 ) = ( 8 + 1 ) ( 4 - 2 )

      = 9 x 2

      = 18

Thus the point of intersection between the function f(x) and g(x) is x = 4.

Learn more about functions here:

https://brainly.com/question/343077

#SPJ5

HERE IS THE ANSWER (see the picture)

Answer:

1) 6

2)0

3)1

The lines of symmetry are like the line that are the perfect half

Answer:

1/36

Step-by-step explanation:

outcomes/total number of outcomes

1/36

I think this is it but I'm not sure, don't take my word for it if you don't think it's correct either.

Answer:

if the size (and shape) of the figure doesn't change then it's congruent

Step-by-step explanation:

[tex] \frac{ - 3}{5} - ( \frac{ - 2}{5} ) \\ = \frac{ -3 }{5} + \frac{2}{5} \\ = \frac{ - 3 + 2}{5} \\ = \frac{ - 1}{5} [/tex]

Answer:

[tex] - \frac{3}{5} - ( - \frac{2}{5} )[/tex]

[tex] - \frac{3}{5} + \frac{2}{5} [/tex]

[tex] \frac{ - 3 + 2}{5} [/tex]

[tex] - \frac{ 1}{5} [/tex]

9514 1404 393

Answer:

  $350

Step-by-step explanation:

Let c represent the cost in 2003. Then we have the cost in 2004 is ...

  c + 0.10·c = 385

  1.1c = 385

  c = 385/1.1 = 350

The cost in 2003 was $350.

Answer:

Step-by-step explanation:

Weight decreased = 108 - 88 =  20 Kg

Percentage decrease = [tex]\frac{20}{108}*100[/tex]

                   = 18.52%

Answer:

very hard

this is a really hard problem but ignore the graph and pay attention to the numbers

Step-by-step explanation:

Answer:

Rational

Step-by-step explanation:

Rational numbers include fractions and decimals that end or have a pattern. Irrational numbers, however, do not end and have an arbitrary pattern. -0.25 is rational because it is a terminating decimal which means it ends.

Examples of irrational numbers include:

√2 , -√101 , π (pi)

Examples of rational numbers include:

-0.89 , √16 , 1/3

i hope this helps :)

Answer:

true

Step-by-step explanation:

Answer:

True

Step-by-step explanation:

That is the definition of  null hypothesis, when there is not enough information to support a hypothesis, we can accept a null hypothesis.

Answer:

m<2=16

Step-by-step explanation:

Answer: 6

Step-by-step explanation:

Answer:

52 square feet.

Step-by-step explanation:

length*width=area

Top rectangle = 4ft*5ft = 20sq.ft

Bottom rectangle = 4ft*8ft = 32sq. ft

20+32=52 sq.ft OR (4*5)+(4*8)=52sq.ft

Answer:

the answer is 140

........

Therefore, growth of her hair is 6 inches in 7 months.

Step-by-step explanation:

Answer:

f(3) = 30

Step-by-step explanation:

f(3) = 2(3)^2 + 12 = 30

Answer:

[tex]vx - w = 2 \\ vx = 2 + w \\ x = \frac{2 + w}{v} [/tex]

Answer:

51.2 degrees Celsius

Step-by-step explanation:

Answer:

B= (-7, -5)

Step-by-step explanation:

The midpoint point formula is (X1 plus X2) divided by 2 to get the x value of the midpoint and do the same for the Y value, ( Y1 plus Y2) divided by 2. So, because you already have the midpoint you have to work backwards. So for the x value of B the formula would be (-5 + X) divided by 2 equals -6 and then you just solve for X. Same thing for the Y value (7 + Y) divided by 2 equals 1. Then you should get both values for B (-7, -5)

Answer:A

Step-by-step explanation:

Answer:

A) you would divide $128 by 4, getting $32. then add that to the original price, being $160.

B) you would divide $160 by 2, getting $80, then add those two together in order to find what it was marked up to, is $240. hopeful, this helps

Step-by-step explanation:

Answer:

1 rubber cube dude give since we'll

Answer: y=3 is a polynomial function? Yes. The equation y=3 represents the function that maps all x values to 3

Step-by-step explanation:

The equation y= 3 represents a horizontal line, which will have exactly one intersection point with any vertical line. So it passes the vertical line test for a function too.

graph{y=3+0.0000001x [-10, 10, -5, 5]}

Answer:

Step-by-step explanation:

2x+20=12x

We can subtract 2x from both sides:

2x+20-2x=12x-2x

20=10x

20/10=x

x=2