CHALLENGE Anna has 15 stickers. Rosa has 3 times as many stickers as Anna. Dawn has 3 times as many stickers as Rosa. Sara has 17 fewer stickers than Dawn. a How many stickers does Rosa have? Show your work.

Answer:

Firstly we need to find the gradient of give two points as follows;

M= y

Answer:

Answer: y = -x - 1

Step-by-step explanation:

- Consider a straight line passing through (x, y) from the origin (0, 0). That line with a positive gradient of m and meets at a point (0, c) [y-intercept]

- It has a general equation as below;

\({ \rm{y = mx + c}} \\ \)

- So, consider the line given in our question; Let's find its slope m first;

\({ \rm{slope = \frac{y _{2} - y _{1} }{x _{2} - x _{1} } }} \\ \)

- From the points given in the question, (-7, 6) and (3, -4)

\({ \rm{m = \frac{ - 4 - 6}{3 - ( - 7)} }} \\ \\ { \rm{m = \frac{ - 10}{10} }} \\ \\ { \underline{ \rm{ \: m = - 1 \: }}}\)

- Therefore, our equation so far is y = -x + c. Our line has a negative slope that means it slants from top to bottom, its origin is its y-intercept

- Consider point (3, -4);

\({ \rm{y = - x + c}} \\ { \rm{ - 4 = - 3 + c}} \\ { \rm{c = - 1}}\)

- y-intercept is -1

hence equation is y = -x - 1

\({ \boxed{ \delta}}{ \underline{ \mathfrak{ \: \: beicker}}}\)

Step-by-step explanation:

Let's solve your equation step-by-step.

−9m2−8m−3=0

For this equation: a=-9, b=-8, c=-3

−9m2+−8m+−3=0

Step 1: Use quadratic formula with a=-9, b=-8, c=-3.

m=

−b±√b2−4ac

2a

m=

−(−8)±√(−8)2−4(−9)(−3)

2(−9)

m=

8±√−44

−18

Answer:

No real solutions.

The given equation has no real solutions.

We have given that the quadratic equation

\(-9m^2-8m-3=0\)

For this equation: a=-9, b=-8, c=-3

\(-9m^2-8m-3=0\)

Step 1: Use quadratic formula with a=-9, b=-8, c=-3.

\(x=\frac{-b \±\sqrt{b^2-4ac}} {2a}\)

Therefore we have,

\(x=\frac{-b \±\sqrt{b^2-4ac}} {2a}\)

\(x=\frac{-(-8)\±\sqrt{(-8)^2-4(-9)(-3)} }{2(-9)}\)

\(x=-\frac{4}{9} -i\frac{\sqrt{11} }{9}\) and \(x=-4/9+i\frac{\sqrt{11} }{9}\)

This equation has no real solutions.

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Answer:

Step-by-step explanation:

Answer:

32

Step-by-step explanation:

r:m

2:14

1:7

m=224

r=224 divided by 7

224/7=32

Edit: unless it is proportional to r^2 in which case it is a different answer

Answer:

m=504

Step-by-step explanation:

From the given formulas, formula A is a tautology or always true. Formula B is a contradiction or never true. And, formula C is contingency or sometimes true.

Using the truth table, a given expression is said to be in tautology when all the values are true. The given expression is said to be a contradiction when all the values are false or never true. And the given expression is said to be contingency when the values are either true or false.

In the given formulas, formula A (p→q)∨(q→r) is a tautology. This is because the values in all rows are true (T).

In the given formulas, formula B (¬(¬(p∧q)→(p→¬q))) is a contradiction. This is because the values in all rows are false (F).

In the given formulas, formula C ((¬p∨q)→q) is a contingency. This is because some values are true and some are false.

The complete question is -

Determine whether each of the following formulas is a tautology, contingency, or contradiction (this means always true, sometimes true, never true). Show how you arrived at each answer. Use equivalence-style proofs.

A. (p→q)∨(q→r)

B. ¬(¬(p∧q)→(p→¬q))

C. ((¬p∨q)→q)

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Answer:

A function is a relation in which each input has only one output. In the relation , y is a function of x, because for each input x (1, 2, 3, or 0), there is only one output y. x is not a function of y, because the input y = 3 has multiple outputs: x = 1 and x = 2.

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

The ratios are not common

Answer:

No

Step-by-step explanation:

the ratios are not common.

Answer:

Step-by-step explanation:

How Far Can A Snail Travel In One Hour

If a snail can travel over half an inch per minute, that means in one hour a snail can travel up to 40 inches. If you want to think about how far this is in feet, it means that snails move up to 3.5 feet per hour.

Consider the fact that the average human being can walk about a mile, or 5280 feet, in one hour.

This means that snails can take up to 1,500 days, or over 4 years, to travel just one mile.

Answer:

3 cups of milk are required for each cup of flour.

Answer:

3 cups of milk

Step-by-step explanation:

1 cup divided by a 1/2 cup is 2.

1 1/2 cups multiplied by 2 is 3 cups.

Of the 250 total shirts about, the quantity of shirts that should be red would be = 125.

The total quantity of shirts that was ordered by Mr. Torres = 250 school t-shirts

The total quantity of red shirt selected at random = 5

The total quantity of blue shirt selected at random = 13

The total quantity of grey shirt selected at random = 12

Total selected at random = 30

Now if 5 red shirts = 30

X red shirts = 250

make X the subject of formula;

X = 15× 250/30

X = 3750/30

X = 125 red shirts.

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Answer: Statement 1 is false.

Step-by-step explanation: 1 is false because all natural numbers, whole numbers, and integers are rationals.

Change in Rosa's elevation from starting to end of her hike is 692 feet.

What is elevation in a hike?

Elevation is the height of hiker above the sea level at any point of the hike.

At the starting of the hike , Rosa was at an elevation of = -600feet

At the ending of the hike, Rosa is at an elevation of  = 92 feet

Change in elevation = final elevation - initial elevation

                                 = 92-(-600) = 692 feet

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The statement that describes the distribution based on the given information is:

A) The distribution is approximately Normal, with a mean of 128 messages and a standard deviation of 98 messages.

The graph shows a normal distribution, as indicated by the shape of the curve. The highest point of the curve (the peak) is at 128, which represents the mean of the distribution.

The standard deviation measures the spread of the data, and based on the information given, it is 98. Therefore, option A accurately describes the distribution.

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Answer:

Find the answer below.

Step-by-step explanation:

1. A = {mountain, valley, plateau, plains and hills}

2. B = {23, 29, 31, 37 and 41}

3. C = {2, 4, 8, 10 and 12}

4. D = {2/3, 1/2, 3/4, and 1/5}

5. E = {ant, angel, angle, anaconda, and ark}

The phrase that represents the algebraic expression n - 4 is option b four less than a number.

Given,

The algebraic expression; n - 4

We have to find the phrase that represents the given algebraic expression.

Algebraic expression;

In mathematics, an expression that incorporates variables, constants, and algebraic operations is known as an algebraic expression (addition, subtraction, etc.). Terms comprise expressions.

An algebraic expression can be categorized into different categories depending on how many terms it contains: polynomial, quadrinomial, trinomial, monomial, and binomial.

So,

n - 4

That is,

4 is less than from a number

Therefore,

The phrase that represents the algebraic expression n - 4 is option b four less than a number.

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Answer:

the answer is b

Step-by-step explanation:

Given:

Standard error = 4

Population standard deviation = 16

To find:

The value of n.

Solution:

The formula of standard error is:

\(SE=\dfrac{\sigma}{\sqrt{n}}\)

Where, SE is standard error ,  \(\sigma\) is population standard deviation and n is the total number of elements.

Substituting \(SE=4,\sigma=16\) in the above formula, we get

\(4=\dfrac{16}{\sqrt{n}}\)

\(\sqrt{n}=\dfrac{16}{4}\)

\(\sqrt{n}=4\)

Taking square on both sides, we get

\(n=4^2\)

\(n=16\)

Therefore, the value of n is 16.

Answer:

8 square inches

Step-by-step explanation:

The formula for are is A=wl if we plug our numbers in we have A=4x2=8  In other terms we now know A=8

Answer:

Step-by-step explanation:

There one more in fact:

Scalene. Isosceles. Equilateral. Right Angled triangle.

Ps. All triangle angles add up to 180 degrees!

Neon (Ne), hydrogen (H), helium (He), and Carbon (C) are examples of; C: elements you can tell because they can be found on the periodic table

Elements are pure substances which are composed of only one type of atom. Compound are substances which are formed by two or more different types of elements that are united chemically in fixed proportions.

Now, Neon (Ne), hydrogen (H), helium (He), and Carbon (C) are examples of elements. This is because they are all composed of only one type of atom and they can as well be found in the periodic table that contains only elements.

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Answer:

31/40

Step-by-step explanation:

Just simplify the fraction

Answer:

31/40

Step-by-step explanation:

Simplify

The linear function y = 2x + 5 shows that Sarah charges $5 as fixed amount before she begins selling newspapers.

The table representing amount of money which Sarah charges her customers to sell newspapers.

Let us consider 'x' represents the time per hour charges taken by Sarah from customers.

In the table,

For zero hours charges are $5.

It means Fixed charges taken by Sarah to sell newspaper.

Difference between the rate per hour is,

$7 - $5 = $2

$9 - $7 = $2

It represents for Sarah charges $2 per hour.

let us consider 'y' that represents total amount charges by Sarah.

Required linear function for selling news paper and charging amount is

y = $5 + 2x

⇒ y = 2x  + 5

Therefore, the linear function y = 2x + 5 represents option 1. Sarah charges $5 before she begins selling newspapers.

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(b) The probability that the call is not for medical assistance = 0.37

(c) The probability that two successive calls will both be for medical assistance = 0.3969

(d) The probability that the first is for medical assistance and the second is not for medical assistance = 0.2331

(e) The probability that exactly one of the next two calls is going to be for medical assistance = 0.4662

The probability of an event is the proportion of favourable outcomes to all other possible outcomes. The symbol x can be used to denote how many successful outcomes there were in an experiment with 'n' outcomes. The formula below can be used to determine a given event's probability:

Probability (Event) = Positive Results/Total Results

                                 = x/n

Given P (call for medical assistance) = 0.63

This means that out of all incoming calls to the fire station, the probability that the call is for medical assistance is 0.63 or 63%. The complement of this event, which is the probability that an incoming call is NOT for medical assistance, is:

P (Not Medical Assistance) = 1 - P (Medical Assistance)

                                            = 1 - 0.63

                                            = 0.37

Now, assuming that successive calls are independent of one another, the probability that two successive calls will both be for medical assistance will be:

P (2 calls for medical assistance)

= 0.63 × 0.63

= 0.3969

The probability that the first is for medical assistance and the second is not for medical assistance will be:

P (1st for medical assistance × 2nd for not medical assistance)

= 0.63 × 0.37

= 0.2331

The probability that exactly one of the next two calls is going to be for medical assistance will be:

P (Exactly 1 call for medical assistance)

= (0.63×0.37) + (0.63×0.37)

= 0.2331 + 0.2331

= 0.4662

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The MAE/MAD is 12.1.

To calculate the weighted moving average, we use the formula:

WMA = (w1 * y1 + w2 * y2 + w3 * y3) / (w1 + w2 + w3)

where:

w1, w2, w3 are the weights for the most recent to the oldest time periods

y1, y2, y3 are the values for the most recent to the oldest time periods

Using the weights of 0.6, 0.3, and 0.1, we can calculate the weighted moving averages for each month:

April: WMA = (0.6 * 387 + 0.3 * 353 + 0.1 * 342) / (0.6 + 0.3 + 0.1) = 372.5

May: WMA = (0.6 * 342 + 0.3 * 387 + 0.1 * 353) / (0.6 + 0.3 + 0.1) = 360.1

June: WMA = (0.6 * 374 + 0.3 * 342 + 0.1 * 387) / (0.6 + 0.3 + 0.1) = 361.2

July: WMA = (0.6 * 396 + 0.3 * 374 + 0.1 * 342) / (0.6 + 0.3 + 0.1) = 383.7

August: WMA = (0.6 * 409 + 0.3 * 396 + 0.1 * 374) / (0.6 + 0.3 + 0.1) = 397.3

September: WMA = (0.6 * 399 + 0.3 * 409 + 0.1 * 396) / (0.6 + 0.3 + 0.1) = 400.5

October: WMA = (0.6 * 412 + 0.3 * 399 + 0.1 * 409) / (0.6 + 0.3 + 0.1) = 406.6

To calculate the Mean Absolute Error (MAE) or Mean Absolute Deviation (MAD), we use the formula:

MAE/MAD = (|y1 - y'| + |y2 - y'| + ... + |yn - y'|) / n

where:

y1, y2, ..., yn are the actual values for each time period

y' is the forecasted value for each time period

n is the total number of time periods

Assuming that the forecasted values are the weighted moving averages, we can calculate the MAE/MAD as follows:

MAE/MAD = (|387 - 372.5| + |342 - 360.1| + |374 - 361.2| + |396 - 383.7| + |409 - 397.3| + |399 - 400.5| + |412 - 406.6|) / 7

= 12.1

Therefore, the MAE/MAD is 12.1.

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Answer:

24

Step-by-step explanation:

8 x 3 = 24

Your two given side lengths are 8 as your width.

3 as your length.

We multiply them together to get the area of the rectangle(base).

Answer:

a

  \(P(G) =  0.69\)

b

  \(P(S | G) = 0.81\)

c

  \(P(M|G') =  0.26\)

Step-by-step explanation:

From the question we are told the

   The probability of getting into getting into graduated school if you receive a strong recommendation is  \(P(G |S) = 0.80\)

   The probability of getting into getting into graduated school if you receive a moderately good recommendation is  \(P(G| M) =  0.60\)

   The probability of getting into getting into graduated school if you receive a weak recommendation is  \(P(G|W) =  0.05\)

   The probability of getting a strong recommendation is  \(P(S) =  0.7\)

     The  probability of receiving a moderately good recommendation is \(P(M) =  0.2\)

       The probability of receiving a weak recommendation is \(P(W) =  0.1\)

      Generally  the probability that you will get into a graduate program is mathematically represented as

     \(P(G) =  P(S) *  P(G|S) + P(M) *  P(G|M) + P(W) *  P(G|W)\)

=>   \(P(G) =  0.7 * 0.8 +  0.2 *  0.6 + 0.1 *  0.05\)

=>   \(P(G) =  0.69\)

Generally  given that you did receive an offer to attend a graduate program, what is the probability that you received a strong recommendation is mathematically represented as

      \(P( S|G) =  \frac{ P(S) *  P(G|S)}{ P(G)}\)

=>    \(P(S|G) =  \frac{ 0.7 * 0.8 }{0.69}\)

=>     \(P(S | G) = 0.81\)

Generally given that you didn't receive an offer to attend a graduate program  the probability that you received a moderately good recommendation is mathematically represented as

        \(P(M|G') =  \frac{ P(M) *  (1- P(G|M))}{(1 - P(G))}\)

         \(P(M| G') =  \frac{ 0.2 *  (1- 0.6)}{ (1 - 0.69)}\)

         \(P(M|G') =  0.26\)

The perimeter and the area of the rectangle are 26 units and 42 square units, respectively.

A rectangle is a quadrilateral with all four interior angles 90°.

Given that, the vertices of the rectangle are (-3.5,3), (3.5,3), (3.5,-3), and (-3.5,-3).

The length of the  rectangle is:

l = 3.5 - (-3.5)

l = 3.5 + 3.5

l = 7

The width of the rectangle is:

w = 3-(-3)

w = 3 + 3

w = 6

The perimeter of the rectangle is given by:

P = 2 (l +w)

P = 2(7 + 6)

P = 26

The area of the rectangle is:
A = l × w

A = 7 × 6

A = 42

Hence, the perimeter and the area of the rectangle are 26 units and 42 square units, respectively.

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Answer:

-0.03334

Step-by-step explanation:

i just graphed it and looked at were y=4 and gave you the x value

:)

Answer:

x1 = -0.0333333, x2=0.7

The missing angle is <B= 40 degree and missing side length is AB = 12.25 and AC = 19.068.

To find the missing angle and side measures of ΔABC, we can use the properties of a triangle.

Given:

∠A = 50°

∠C = 90°

CB = 16

We can start by finding the measure of ∠B:

∠A + ∠B + ∠C = 180° (Sum of angles in a triangle)

50° + ∠B + 90° = 180°

∠B + 140° = 180°

∠B = 180° - 140°

∠B = 40°

Now, using Sine law

CB/ sin A = AB / sin C

16 / sin 50 = AB / sin 90

16 / 0.766044 = AB

AB = 12.25

Again 12.25 = AC/ sin B

12.25 = AC / sin 40

AC = 19.068

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Answer:

Angle 5 = 180 - (31 + 49) - 63 = 37 degrees

Angle 1 = 180 - (63 + 37) = 80 degrees

Angle 4(vertical to angle 1) = 80 degrees

Angle 2 = 180 - 31 - 37 = 112 degrees

Angle 3 = 180 - 49 = 131 degrees

P.S.

You can just report absurd answers, they get deleted fast.  Don't put the passive-aggressive threat thing on the end, its a bit unappealing.

Hope it helps, and lmk if you need further explanation! :)

1)80°

2)112°

3)131°

4)80°

5)37°