sara mailed 20 christmas cards. of them were mailed to canada. what percentage of the cards were mailed to canada

Answers

Answer 1

Answer:

45%

Step-by-step explanation:

9/20


Related Questions

Ceasar opens a bank account and makes an initial deposit of $800. The banker tells Ceasar that he is going to receive an annual rate of 10% compounded continuously on his investment. Find the bank balance assuming Ceasar leaves the account untouched for 8 years.


Can you please do the problem using the formula A(t)=pe^(rt).

Answers

Answer:

1780.43

Step-by-step explanation:

Given:

P = 800

r = 10% or 0.1

t = 8

1780.43 i just took the test jit

1. Which of the following is not a true statement?

Group of answer choices

Angle 1 and Angle 3 are supplementary angles.

Angle 2 and Angle 7 are congruent

Angle 5 and Angle 8 are congruent.​

Angle 3 and Angle 7 are supplementary angles.

Answers

[tex]\bf{Hello!}[/tex]

Angle 3 and Angle 7 are supplementary is the wrong statement

Because, they are corresponding angles and they are equal.

Erik has 5 blue marbles and 13 red marbles in a box. He randomly draws one out. Find P(Red) in fraction form.

Answers

Answer:

13/5

Step-by-step explanation:

The probability of (red) is the chance of drawing a red marble out of the red and blue marbles. As there are 13 red marbles and 5 blue marbles, the probability of drawing a red marble is 13 out of 5, or 13/5 in fraction form.

find the value for x

Answers

Answer:

X = 6°

Step-by-step explanation:

In a set of parallel lines, the opposite angles and corresponding angles are similar. Since the opposite angle of 110° is the corresponding angle of 19x - 4, you can conclude that 19x - 4 = 110° ⇒ 19x = 114° ⇒ x = 6°.

Leanna opens a savings account with an initial balance of $100. She then deposits $50 each month. Use an equation, a table, and a graph to explain the relationship between the amount of money in the account, a, and the number of months since Leanna opened the account, m.

Part A Write an equation to represent the problem. Explain how the value of a changes as m increases.

Part B Make a table to show the relationship between m and a. Find 5 ordered pairs.

Part C Use your table from Part B to draw a graph to represent the situation.

Please answer all questions

Answers

See the attached picture:

A 33 gram sample of a substance that's
used for drug research has a k-value of
0.1124.

Find the substances half life and the round your answer to the nearest 10th

Answers

9514 1404 393

Answer:

  6.2

Step-by-step explanation:

We presume your "k-value" is the k in the exponential decay term ...

  e^(-kt) . . . where t is the number of time units

This is 1/2 when ...

  ln(1/2) = -kt

  t = ln(1/2)/(-k) = ln(2)/k

  t = 0.69315/0.1124 ≈ 6.2

The half life is about 6.2 time units.

which expression is equivalent to 6^4x6^3

Answers

Answer:

C - (6x6x6x6)(6x6x6)

Step-by-step explanation:

I can't figure this out​

Answers

9514 1404 393

Answer:

  143 in²

Step-by-step explanation:

The figure is dimensioned in such a way that it can be divided easily into three rectangular areas. The top rectangle is 10 in wide and 7 in high. The vertical rectangle below that is 4 in wide and 12 in high, and the square appendage on the right is 5 in square.

Then the total area is the sum of products of length and width:

  A = (10 in)(7 in) + (4 in)(12 in) + (5 in)(5 in) = (70 +48 +25) in²

  A = 143 in²

The area of the irregular figure is 143 in².

You pick a card at random.

2 3 4 5
6 7 8 9
What is P(5)

Write your answer as a percentage.

Answers

Step-by-step explanation:

There are a total of 8 cards, you are picking only one card,

therefore P(5) =

[tex] \frac{1}{8} \times 100 \\ = \frac{100}{8} \\ = 12.5percent[/tex]

Hi, I need the are to this question, I just need to show my work btw​

Answers

what is the question?


Does anyone know how to foil the answer ?!

Answers

Answer:

(a+b)(c+d)=a c+a d+b c+b d is the formula

Step-by-step explanation:

1 . What is the distance between the two points.
(0,5 1,3), (-0,4, -1,3) ?

2. What is the distance between the two points
(6, -3), (2, -4)

Answers

Only could find one sorryyyy
2. Is 4.1231

plz, help. I need it...

Answers

Answer: (6, 3)

Step-by-step explanation:

WHAT IS 3/20 IN DECIMAL AND PERCENTAGE

Answers

0.15 or 15%. .........

The area of a triangle is 18. The base is 6 inches. What is the height?

Answers

Answer:

the hight of your triangle is six inches


Please help thank you

Answers

Answer:

x = 140

Step-by-step explanation:

Using the exterior angle rule ( an exterior angle of a triangle is equal to the opposite interior angles of a triangle )

x is the interior angle and the given angles ( 50 and 90 ) are the opposite interior angles

So

x = 50 + 90

50 + 90 = 140

x = 140

Note: there is a right angle ( indicated by the little square. A right angle has a measure of 90 degrees so that's where the 90 came from)

Solve the following equation: *

Answers

Answer:

Step-by-step explanation:

x/3 + 6 = 17

Bringing like terms on one side

x/3 = 17 - 6

x/3 = 11

Dividing by 3 on both sides

x = 11/3

Jamal purchased a truck for $10,000. The truck depreciates 10% each year. What is the value of
the truck after 8 years? Round 2 decimal places.

Answers

Answer:

Step-by-step explanation:

Uui

) Cars are parked in line as they come off the assembly lines. There are three models: red cars which take up 2 spaces, blue cars which also take up 2 spaces, and green cars which take up only 1 space. Let an be the number of ways of filling the first n parking spaces with red, blue and green cars.

Answers

Answer:

Hello your question has some missing information below is the complete question

answer :

[tex]a_{n} = a_{n-2} + a_{n-2} + a_{n-1}[/tex]

Step-by-step explanation:

Red car and Blue car take up 2 spaces each

Green cars take up 1 space

lets determine the number of ways of filling up the parking spaces

i) First lets assume the last space is filled by Green car then there will be [tex]n^{th}[/tex] space occupied hence there will be ( n - 1 ) spaces left to be filled in [tex]a_{n-1}[/tex] ways

ii) lets assume the last space is filled by either a Red car or a Blue car then there will be [tex]n^{th} + ( n -1 )^{st}[/tex]  parking space occupied hence there will be

( n - 2 ) spaces left to be filled in [tex]a_{n-2}[/tex] ways

Hence A closed formula for [tex]a_{n}[/tex]

[tex]a_{n} = a_{n-2} + a_{n-2} + a_{n-1}[/tex]

where : a1 = 1 way ,  a2 = 3 ways

answer and show proof for branliest

Answers

Answer:

-2(4 - 1)

Step-by-step explanation:

Choice A: ❌

9-(-17)

9 + 17 = 26

Choice B: ❌

(4 - 16)/(-2)

(-12)/(-2)

6

Choice C: ✅

-2(4 - 1)

-2(3)

-6

Choice D: ❌

3 x (-2) x (-1)

-6 x (-1)

6

Answer:

- 2(4 - 1)

Step-by-step explanation:

9 - (- 17)

9 + 17 = 26

[tex]\frac{4 - 16}{-2}[/tex] = 12

- 2(4 - 1)

- 2(3) = - 6

3 × - 2 × - 1 = 6

Find the slope of the line that passes through the given points.

Answers

Answer: -1/6

Step-by-step explanation:

slope= change of y over change of x

3-4/ 5--1=

-1/6

Hope this helps!

Answer:

-1/6

Step-by-step explanation:

(-1, 4) and (5, 3)

y2 - y1 / x2 - x1

y2 = 3

y1 = 4

x2 = 5

x1 = -1

(3 - 4) / (5 - -1)

-1 / 6

slope = -1/6

Answer choices
4 feet
5feet
6feet
8feet
Please help if you send a link I will report

Answers

8 is the answererrr :))))))

Answer:

d

Step-by-step explanation:

only reasonable answer

Amy needs to estimate how many students at her school like online testing. She needs to create a random sample of students. How should Amy collect her sample? Select two that apply.
O Amy should ask every 10th person leaving the school at the end of the day.
O Amy should ask 3 people at every table in the cafeteria
O Amy should ask her 10 closest friends.
O Amy should ask the 35 students in her honors math class
O Amy should ask the 50 students in the computer club.​

Answers

Answer:
The answer should be the second one and 4th

Calculus helpppppppppppppppp

Answers

Answer:

[tex]\displaystyle y' = \frac{5x^2 + 3}{3(1 + x^2)^\bigg{\frac{2}{3}}}[/tex]

General Formulas and Concepts:

Pre-Algebra

Equality Properties

Algebra I

FunctionsFunction NotationExponential Rule [Root Rewrite]:                                                                     [tex]\displaystyle \sqrt[n]{x} = x^{\frac{1}{n}}[/tex]

Algebra II

Logarithms and Natural LogsLogarithmic Property [Multiplying]:                                                                 [tex]\displaystyle log(ab) = log(a) + log(b)[/tex]Logarithmic Property [Exponential]:                                                                [tex]\displaystyle log(a^b) = b \cdot log(a)[/tex]

Calculus

Derivatives

Derivative Notation

Derivative Property [Multiplied Constant]:                                                              [tex]\displaystyle \frac{d}{dx} [cf(x)] = c \cdot f'(x)[/tex]

Derivative Property [Addition/Subtraction]:                                                            [tex]\displaystyle \frac{d}{dx}[f(x) + g(x)] = \frac{d}{dx}[f(x)] + \frac{d}{dx}[g(x)][/tex]

Basic Power Rule:

f(x) = cxⁿ f’(x) = c·nxⁿ⁻¹

Derivative Rule [Chain Rule]:                                                                                       [tex]\displaystyle \frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)[/tex]

Logarithmic Derivative:                                                                                                [tex]\displaystyle \frac{d}{dx} [lnu] = \frac{u'}{u}[/tex]

Implicit Differentiation

Step-by-step explanation:

Step 1: Define

Identify

[tex]\displaystyle y = x\sqrt[3]{1 + x^2}[/tex]

Step 2: Rewrite

[Equality Property] ln both sides:                                                                     [tex]\displaystyle lny = ln(x\sqrt[3]{1 + x^2})[/tex]Logarithmic Property [Multiplying]:                                                                 [tex]\displaystyle lny = ln(x) + ln(\sqrt[3]{1 + x^2})[/tex]Exponential Rule [Root Rewrite]:                                                                     [tex]\displaystyle lny = ln(x) + ln \bigg[ (1 + x^2)^\bigg{\frac{1}{3}} \bigg][/tex]Logarithmic Property [Exponential]:                                                                [tex]\displaystyle lny = ln(x) + \frac{1}{3}ln(1 + x^2)[/tex]

Step 3: Differentiate

ln Derivative [Implicit Differentiation]:                                                             [tex]\displaystyle \frac{d}{dx}[lny] = \frac{d}{dx} \bigg[ ln(x) + \frac{1}{3}ln(1 + x^2) \bigg][/tex]Rewrite [Derivative Property - Addition]:                                                        [tex]\displaystyle \frac{d}{dx}[lny] = \frac{d}{dx}[ln(x)] + \frac{d}{dx} \bigg[ \frac{1}{3}ln(1 + x^2) \bigg][/tex]Rewrite [Derivative Property - Multiplied Constant]:                                      [tex]\displaystyle \frac{d}{dx}[lny] = \frac{d}{dx}[ln(x)] + \frac{1}{3}\frac{d}{dx}[ln(1 + x^2)][/tex]ln Derivative [Chain Rule]:                                                                                [tex]\displaystyle \frac{y'}{y} = \frac{1}{x} + \frac{1}{3} \bigg( \frac{1}{1 + x^2} \bigg) \cdot \frac{d}{dx}[(1 + x^2)][/tex]Rewrite [Derivative Property - Addition]:                                                        [tex]\displaystyle \frac{y'}{y} = \frac{1}{x} + \frac{1}{3} \bigg( \frac{1}{1 + x^2} \bigg) \cdot \bigg( \frac{d}{dx}[1] + \frac{d}{dx}[x^2] \bigg)[/tex]Basic Power Rule]:                                                                                           [tex]\displaystyle \frac{y'}{y} = \frac{1}{x} + \frac{1}{3} \bigg( \frac{1}{1 + x^2} \bigg) \cdot (2x^{2 - 1})[/tex]Simplify:                                                                                                             [tex]\displaystyle \frac{y'}{y} = \frac{1}{x} + \frac{1}{3} \bigg( \frac{1}{1 + x^2} \bigg) \cdot 2x[/tex]Multiply:                                                                                                             [tex]\displaystyle \frac{y'}{y} = \frac{1}{x} + \frac{2x}{3(1 + x^2)}[/tex][Multiplication Property of Equality] Isolate y':                                                [tex]\displaystyle y' = y \bigg[ \frac{1}{x} + \frac{2x}{3(1 + x^2)} \bigg][/tex]Substitute in y:                                                                                                  [tex]\displaystyle y' = x\sqrt[3]{1 + x^2} \bigg[ \frac{1}{x} + \frac{2x}{3(1 + x^2)} \bigg][/tex][Brackets] Add:                                                                                                 [tex]\displaystyle y' = x\sqrt[3]{1 + x^2} \bigg[ \frac{5x^2 + 3}{3x(1 + x^2)} \bigg][/tex]Multiply:                                                                                                             [tex]\displaystyle y' = \frac{(5x^2 + 3)\sqrt[3]{1 + x^2}}{3(1 + x^2)}[/tex]Simplify [Exponential Rule - Root Rewrite]:                                                    [tex]\displaystyle y' = \frac{5x^2 + 3}{3(1 + x^2)^\bigg{\frac{2}{3}}}[/tex]

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Implicit Differentiation

Book: College Calculus 10e

This angle cuts out 1/4 of the circle. Find the measure of the angle.

Answers

Answer:

90 degrees

Step-by-step explanation:

What is y/x = 8 proportional to?

Answers

Answer:

y is directly proportional to 8

while x is inversily proportional to 8

what is the value of x in each figure

PLEASE DON'T GIVE ME A LINK ​

Answers

Answer:

x=43

Step-by-step explanation:

3x+17+x-9=180

4x+8=180

4x=180-8

4x=172

x=43

X= 43 is the answer

Three percent of the students at Midwood High School are left-handed. There are 700 students at Midwood High School. How many students at Midwood High School are left-handed?
A.21 students
B.210 students
C.140 students
D.12 students

Answers

Answer:

21 students because 3% = 0.03 . When you multiply 0.03 by 700, you get 21.

Answer:

[tex] \frac{3}{100} \times 700[/tex][tex]3 \times 7[/tex][tex]21[/tex]

there are total 21 left handed students in the school.

Ava read 126 books in 12 months. How many books per month did she read? Show your work

Answers

10.5 hopes this helps

What is the unit rate for the following rate: 5 pounds of potatoes costs $10


Answers

Answer:

$2 per round of potatoes

Step-by-step explanation:

$10/5 pounds of potatoes= $2

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