Lea has 14coins that have a total value of $2.30. Coins are Nichols and quarters. How many of each coin does she have. Use substitution.

Answer:

A=πr2=π·82≈201.06193ft²

Answer:

Step-by-step explanation:

r = 8

pi = 3.14

Area = pi * r^2

Area = pi * r * r               That's what the 2 means.

Area = 3.14 * 8 * 8

Area = 200.96 square feet

Answer:

x = 36

Step-by-step explanation:

Multiply the numbers

50 = x -1 (-14)

50 = x + 14

Subtract 14 from both sides of the equation

50 = x + 14

50 - 14 = x + 14 - 14

Simplify

x = 36

[RevyBreeze]

Answer:

Calculator Use

Count how many significant figures are in a number, and find which digits are significant. You can use this calculator for significant figures practice: Test your ability to find how many significant figures are in a number.

Enter whole numbers, real numbers, scientific notation or e notation. Example inputs are, 3500, 35.0056, 3.5 x 10^3 and 3.5e3.

Find How Many Significant Figures

Significant figures are the digits of a number that are meaningful in terms of accuracy or precision. They include:

Any non-zero digit

Zeros between non-zero digits as in 3003 or 45.60009

Trailing zeros only when there is a decimal point as in 6750. or 274.3300

How to Identify Non-Significant Figures

Digits of a number are not significant when they do not add information regarding the precision of that number. They include:

Leading zeros as in 0.009 or 0056

Trailing zeros as in 45000 when no decimal point is present. If an overline is present as in 45000 the overlined zero is significant but the trailing zeros are not significant.

Find Significant Figures

 How Many

Sig Figs? Which Figures

are Significant?

81 2 8, 1

26.2 3 2, 6, 2

0.007 1 7

5200.38 6 5, 2, 0, 0, 3, 8

380.0 4 3, 8, 0, 0

78800 3 7, 8, 8

78800 4 7, 8, 8, 0

78800. 5 7, 8, 8, 0, 0

Step-by-step explanation:

Hope this helps :)

Answer:

[tex]\frac{1}{2}[/tex]

Step-by-step explanation:

The formula for calculating the slope is [tex]\frac{y_{1}-y_{2} }{x_{1}-x_{2}}[/tex].

We can use the two points (-8,0) and (-6,1). We can now substitute and solve the equation.

[tex]\frac{1-0}{-6-(-8)}=\frac{1}{2}[/tex]

Answer:

Step-by-step explanation:

There are two kinds of exponential problems here.

The second problem gives you a table that suggests the sequence form, but it asks for the exponential function form. The third problem does something similar.

__

In an exponential function of the form f(x) = a·b^x, the function grows if b>1 and decays if b<1. Using this check, we can easily answer ...

  a. 0.4 < 1 . . . decay

  b. 1.3 > 1 . . . growth

  c. 1/2 < 1 . . . decay

  d. 1 = 1 . . . neither growth nor decay; the function is constant: j(x) = 1.

__

The value of x is given starting at 1, so we can consider this a geometric sequence. The common ratio is r = 16/4 = 4. The first term is a1 = 4, so the explicit formula for the sequence is ...

  an = 4·4^(n-1)

When this is expanded to get rid of the constant in the exponent, we have ...

  an = 4·(4^n)·(4^-1) = 1·4^n

We recognize this form as matching the functional form f(x) = a·r^x. The multiplier of the exponential factor is a=1. In summary, ...

  r = 4; a = 1; f(x) = 1·4^x

__

The first term of this geometric sequence is a1 = 3. The common ratio is r = 15/3 = 5. Using the explicit formula, we have ...

 a. explicit form: an = 3·5^(n-1)

Using the method of question 2 to write the functional form, we find ...

  an = 3(5^n)(5^-1) = (3/5)(5^n)

  b. functional form: f(x) = (3/5)(5^x)

  c. function family: exponential growth functions

 d. y-intercept: (3/5) . . . . read this from the f(x) form

     1st term: the first term listed in the given sequence is 3

_____

Additional comment

The "y-intercept" of a sequence is irrelevant (undefined), as the sequence term numbering starts with 1, not 0. The domain of the explicit formula is natural numbers, which does not include 0.

Similarly, the "first term" of a function f(x) needs further definition. Here, we've answered the question by saying the first term is f(1). There is no conventional definition of a "first term" for a continuous function.

Answer:

m=2

Step-by-step explanation:

4x2= 8 and so 8= 2/4

then m-12= so if your going based on the first scenario it's 2-12=10.

Answer:

n*25=t

Step-by-step explanation:

n is the number of bags and 25 is the amount of marbles so we just put it into a simple multiplication function to show how many  marbles would be in n bags.

Answer:

second option is true:

-2 + v = 16

Step-by-step explanation:

do them all:

-2 - v = 16

-v = 18;   v = -18   (NOT 14)  FALSE

-2 + v = 16

v = 18  TRUE

-2 + v = 16

v = 18    (NOT 14)  FALSE

v + (-2) = 16

v = 18   (NOT -8)    FALSE

Answer:

5:9 or 5/9

Step-by-step explanation:

A ratio between two (or more) numbers can be written in two (common...) forms, in this case:

5:9

and

5/9

Answer:

To simplify the ratio 5:9, we find the greatest common divisor of 5 and 9, and then we divide 5 and 9 by the greatest common divisor. Or if you want to know if its equivalent you would be able to divide evenly by the same number for both for example, 15:27 are equivalent since they both can be divided by themselves three times

Step-by-step explanation:

Answer:

3/5

Step-by-step explanation:

If Mr Mason spent 2/5 of class time on a test review, then he will spend:

1 - 2/5 = 5/5 - 2/5 = 3/5 of class time NOT on the test review

Answer:

[tex]\frac{3}{5}[/tex]

Thinking behind the answer:

[] Let's say that the total class time is 5/5, or equal to one. This one represents the whole class period.

[] Now, if 2/5 of that class time are spent on test review, whatever chunk of class that's left is not spent on test review.

[] We can use subtraction to find our answer.

Step-by-step explanation:

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

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.

- Heather

Answer:

x-intercept = (-8, 0)

y-intercept = (0, -2)

Step-by-step explanation:

Given linear equation is: x + 4y = - 8

For x - intercept: Plug y = 0 in the above equation.

[tex]\implies x +4(0) = -8\\\\\implies x +0 =-8\\\\ \implies x = -8\\\\ \boxed{\red{\bold{\implies x- intercept = (-8,\:0)}}}[/tex]

For y - intercept: Plug x = 0 in the given linear equation.

[tex]\implies 0 +4y = -8\\\\\implies 4y=-8\\\\ \implies y = \frac{-8}{4}\\\\ \implies y = -2\\\\ \boxed{\purple{\bold{\implies y- intercept = (0,\:-2)}}}[/tex]

Answer:

go to the right 2 and up 6

Step-by-step explanation:

Answer:

0.2

Step-by-step explanation:

5 divided by 5 is 1

25 divided by 5 is 5

1/5 is the same as 1 divded by 5

=0.02

Answer:

th5

Step-by-step explanation:

e answer is 5

udeeeeee5t is the most

Answer:

52pi

Step-by-step explanation:

You need the area of the large grey circle, minus the white circle, plus the small grey

Large grey = 8^2 * pi = 64pi

White = 4^2 * pi = 16pi

Small grey = 2^2 * pi = 4pi

64pi - 16pi = 48pi, 48pi + 4pi = 52pi

Answer:

see below

Step-by-step explanation:

An irrational number is a real number that cannot be written as a simple fraction.  (Irrational means not rational).

0.2476931 + 12.4139 = 12.6615931   irrational

1/√3  x  √3/√10 = √3 / √30 = √10 / 10  irrational

243/3 - 16/6 = 486/6 - 16/6 = 470/6 = 235/3  rational

∛21 x 3 = 8.276772529  irrational

(√9 + √6) - (4 - √6) = 3 +2√6 - 4 = -1 + 2√6 = irrational

Answer:

a 2:32

b 4:30

c 6:45

d 10:29

Answer:

2.5 cm

Step-by-step explanation:

From the first 4 bounces, we find that the height of the lacrosse ball after each bounce is 1/4 the height that it was after the previous bounce. Therefore, since the 7th bounce is 6 bounces after the first bounce, we can set up an equation to find the balls height (y), after some number of bounces after the first one:

[tex]y=10240*(\frac{1}{4})^x[/tex].

Plug-in 6 for x to get 2.5.

Hope this helps :)

Answer:

396

Step-by-step explanation:

Answer:

Step-by-step explanation:

Use Pythagorean.

The width and height are the legs and the diagonal is the hypotenuse of the right triangle.

Look at the diagram and apply Pythagorean theorem

[tex]\\ \tt\hookrightarrow x^2=65^2-25^2[/tex]

[tex]\\ \tt\hookrightarrow x^2=4225-625[/tex]

[tex]\\ \tt\hookrightarrow x^2=3600[/tex]

[tex]\\ \tt\hookrightarrow x=60cm[/tex]

Answer:

its not a. On some test it may be

Step-by-step explanation:

Bankruptcy make owning a car more expensive as It causes a loss of assets. Thus, option (A) is correct.

Bankruptcy refer to the situation in which individuals or other entities that are unable to pay their creditors back can seek partial or complete relief from their debts. Bankruptcy is typically imposed by a court order that is frequently requested by the debtor, and then legal process is undertaken.

In order to pay the expenses, the business owner has to sell their cars to decrease the amount of the debt. This kind of the situation arises at the time of the insolvency of the business and court also order starting the process of dissolution.

Therefore, it can be concluded that Since bankruptcy results in the loss of assets, having a car becomes more expensive. Hence,  option (A) is correct.

Learn more about Bankruptcy here:

https://brainly.com/question/1142634

#SPJ5

The sinusoidal function graph has a period of 2·π and a minimum point

with coordinates (-0.5·n·π, -6) where n = -5, -1, 3, ...

Response:

The minimum value of a function is the lowest vertex value of the

function.

The given graph description, is the graph of the following function;

f(t) = 0.5·sin(t) - 5.5

The minimum value is given at the location where, sin(t) = -1, which gives;

f(t) = 0.5 × (-1) - 5.5 = -6

The minimum value of the function is therefore;

Learn more about the graphs of functions here:

https://brainly.com/question/26254100

Answer:

take the equation and search it is 1828281'9292

Answer:

$5.6

8% * 70  = 5.6

(8/100)

Answers and Step-by-step explanations:

When rounding, you should always look at the placement behind what you are trying to round to. So instead of looking at the hundred's placement, which is 0, we need to look at the ten's placement.

(Important:) When rounding, you should always remember that if a number is 1 - 4 when rounding, it does not round up the the next placement. If a number is 5 - 9, then it gets rounded to the next placement.

Hundred's placement: The 9 in the ten's spot (5,0[9]9.620) is on the 5 - 9 scale, so the hundred's placement rounds up to the next number.

5,100.620

Hundredth's placement: Anytime that the "th" is at the end of a word like "hundred" in rounding, it means to go behind (or to the right of) the decimal point. So, 2 falls into the 1 - 4 scale, so it doesn't get rounded.

5,099.600 (or 5,100.600 because of the answer earlier.)

I hope this helps.

Answer:

C and B

Step-by-step explanation:

Got it right on test

Answer: b and c

Step-by-step explanation:

i just take the test