What is the simplified form of

Answer:

28 square units

Step-by-step explanation:

Answer:

a primit 36 ​​corect ane 4 în mod greșit

Step-by-step explanation:

În această întrebare, ne preocupăm să calculăm numărul de răspunsuri corecte și de răspunsuri greșite pe care elevul le-a dat.

În primul rând, începem prin atribuirea de variabile.

Numărul de răspunsuri corecte să fie x în timp ce numărul de răspunsuri greșite să fie y

Deoarece există 40 de probleme în total, aceasta înseamnă că adăugarea ambelor este egală cu 40 matematic,

x + y = 40. ••• (i)

Acum să trecem la partea complicată. Fiecare răspuns corect = +7. Răspunsul corect total este astfel + 7x Fiecare răspuns greșit este = -5. Răspunsul total greșit este astfel -5y Punct total marcat = 232 Aceasta

înseamnă că; 7x -5y = 232 ••••••••• (ii)

De la i, putem spune y = 40 -x să punem acest lucru în ecuație

ii 7x -5 (40-x) = 232

7x - 200 + 5x = 232

12x = 232 + 200 12x = 432 x = 432/12 x = 36 Deoarece y = 40 - x y = 40 - 36 y = 4

I believe the answer is 2..

Answer:

49

Step-by-step explanation:

You need to find the median,which is 30, then you figure out the innerquartile.....which is 9....then find out the outerquartile...58......then you find out the range of both of them....58 - 9 = 49

Plz correct me if I'm wrong

Answer:

(x,y) = (3, 1/2)

Step-by-step explanation:

This pair of linear equations may be solved simultaneously by using the elimination method. This will involve ensuring that the coefficient of one of the unknown variables is the same in both equations..

To solve this, add the equations;

x + 2x + 2y - 2y = 4 + 5

3x = 9

x = 3

substitute the value of x into the first equation,

3 + 2y = 4

2y = 4 -3

2y = 1

y = 1/2

Answer: Its B

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

8^2 + 15^2 = 17^2

(64 + 225 = 289)

Answer:

200 would be the answer! :)

Step-by-step explanation:

hope this helped!

Answer:200

Step-by-step explanation:

Its higher than a 5 which turns it into a 10

Answer:

The probability is 0.31

Step-by-step explanation:

In this question, we are tasked with calculating the probability that a random plumber called at Denver will charge an amount greater than $86 given the mean and the standard deviation.

Firstly, we calculate the standard score of $86 using the mean and the standard deviation.

Mathematically;

z-score = (x-mean)/SD

where x = 86, mean = 84 and SD = 4

z-score = (86-84)/4 = 2/4 = 0.5

Hence, we want to calculate P(z ≥ 0.5)

Using standard table

P( (z ≥ 0.5) = 1 - P(z ≤ 0.5) = 1 - ( 0.19146 + 0.5) = 0.30854

To the nearest hundredth = 0.31

Answer:

The toy's maximum height is [tex]10.12\ \text{feet}[/tex].

Step-by-step explanation:

The equation that models the toy's height in feet from the ground at t seconds after  he threw it is given by :

[tex]h = -2t^2 + 7t + 4[/tex] .....(1)

It is required to find the toy's maximum height. For maxima or minima, put

[tex]\dfrac{dh}{dt}=0[/tex]

Plugging the value of t in above equation,

[tex]\dfrac{d(-2t^2 + 7t + 4)}{dt}=0\\\\-4t+7=0\\\\t=\dfrac{7}{4}\\\\t=1.75\ s[/tex]

Now put t = 1.75 s in equation (1) such that,

[tex]h = -2(1.75)^2 + 7(1.75) + 4\\\\h=10.12\ \text{feet}[/tex]

So, the toy's maximum height is [tex]10.12\ \text{feet}[/tex].

The toy's maximum height is 10.12 feet.

Since the nephew is standing on his deck, which is 4 feet off the ground. He tosses his toy up into the air at an initial velocity of 7 feet per second. The equation is [tex]h = -2t^2 + 7+ 4[/tex]

So first we have to determine the t i.e.

[tex]d(-2t^2 + 7 +4) \div dt = 0\\\\-4t + 7 = 0\\\\ t = 7\div 4[/tex]

t = 1.75 s

Now

the height should be

[tex]= -2(1.75)^2 + 7(1.25)+ 4[/tex]

= 10.12 feet.

hence, The toy's maximum height is 10.12 feet.

Learn more about height here: https://brainly.com/question/15349462

Answer :

The surface area will increase by 9

Step-by-step explanation :

This problem bothers on the mensuration of solid shapes, a cylinder

Step one

We know that the surface area of a cylinder is given as

A= 2πrh + 2πr²

A= 2π(rh + r²)

Since the radius and the height is tripled r=3r, h= 3h

A= 2π(3r*3h + (3r)²)

A= 2π(9rh + 9r²)

Factoring 9 out we have

A= 9*2π(rh + r²)

Hence the surface area will increase by 9

Answer:

Y=total cost of purchasing the pencils

Step-by-step explanation:

Y=3.5x+2.99

Where,

Y=total cost of purchasing the pencils

3.5=price of each pencil

X= number of pencils bought

2.99= shipping cost

For instance, if you order for 5 pencils on Amazon, the total cost of purchasing it is

Y=$3.50(5)+$2.99

Y=$17.50+$2.99

Y=$20.49

Answer:

C: Area and side length of a square

Step-by-step explanation:

Answer: C

Step-by-step explanation:

Step-by-step explanation:

3x-4<-19

+4. +4

3X<-15

Divide by 3

X<-5

....

Answer:

The mean amount of money relatives gave Timothy was $27.

Step-by-step explanation:

The mean means the average of a set of numbers.

1)  Add 15, 50, 25, and 18 together, which equals $108

3) Divide 108 by 4 (because there are 4 numbers) and you get 27

(hope this helps :)

Answer:

when evaluating a power with a negative base, the solution is positive or negative depending on whether the exponent is odd or even. if odd, the value will be negative. if even, the value will be positive.

Step-by-step explanation:

Answer:

On edge

My response: If the base is negative and you are trying to find out weather the value of the power(Answer) will be negative or positive all you have to look at is the exponent. If the exponent is even the answer will be positive. If the exponent is odd then the answer will be negative.

Sample Response: When evaluating a power with a negative base, the solution is positive or negative depending on whether the exponent is odd or even. If odd, the value will be negative. If even, the value will be positive.

Answer:

It has exactly four faces that are triangles.

It has 4 vertices.

It has 6 edges.

Step-by-step explanation:

A triangular pyramid is also termed as a tetrahedron.

The properties of a triangular pyramid include:

Among the four faces, any one of them can be considered to be the base of the pyramid.

The faces are of equal shape and size.

The edges have the same length.

The triangles are equilateral.

Answer: in short, C, D, And F

Step-by-step explanation:

Answer:

Step-by-step explanation:

hello : here is an solution :

Answer:

Step-by-step explanation:

Ratios are in proportion

Let x be number of apples

2:3 = x:15

[tex]\frac{2}{3}=\frac{x}{15}\\\\\frac{2}{3}*15=x\\\\2*5=x\\10=x\\[/tex]

Mike should have 10 apples

If Mike has 15 bananas, he would have 10 apples based on the ratio of 2 apples to 3 bananas.

To solve the problem, we start by understanding the given ratio of apples to bananas: 2 apples for every 3 bananas. This can be expressed as the fraction 2/3.

Now, we need to determine how many apples Mike would have if he possesses 15 bananas.

Therefore, if Mike has 15 bananas, he would have 10 apples.

Answer:

282.4 in 3

Step-by-step explanation:

Answer:

282.4

Step-by-step explanation:

Answer:

The answer is 3.

Step-by-step explanation:

-3/4 divided by 2/-8

take the reciprocal of 2/-8

which is -8/2 then divide

[tex]\frac{-3}{4}[/tex]  ÷ [tex]\frac{-8}{2}[/tex]

= 3

-3/4 ÷ 2/-8

Answer:

okay I guess the answer is 120 square units

Answer:

11y = 15

Step-by-step explanation:

12y - y - 15 = 0

11y - 15 = 0

11y = 15

Answer:

Yards.

Step-by-step explanation

3 feet=1 yard

Answer: The correct option is the first question; How many times did we buy a school lunch last week?

Step-by-step explanation: When collecting data for the purpose of statistics and data analyses, the exercise involved goes beyond just asking questions. It is actually about asking questions that would provide data or information with a measure of variability. That would help in deciding which data can be best suited to represent the entire data collected.

The question how many days were in last month is not a statistical question because the answer is pretty much straight forward. The number of days in the previous month cannot vary, it will always be the same, hence the answer would be not be useful for any kind of statistical analyses.

Also, asking "Is your favorite number 5?" is not a statistical question because the answer is a yes or no. This does not allow for any kind of statistical analyses. Its as good as a 'dead end.'

However, asking how many times we bought a school lunch last week is a statistical question because the data collected would have a good measure of variability. That is, the data cannot be the same for all respondents. Unlike in the second question where the answer is already known and unchangeable, the answer to this question is not going to be a fixed one and as the respondents provide varying answers, you can now begin to measure the point at which all the answers are likely to agree (measure of central tendency) which is a basic part of statistics.

Answer:

The answer is 73,987 :)

Here is a typed out explanation.

The arc measure of CAD is 296 degrees.

1. Find k by setting angle DPE to 90 degrees:

33k - 9 = 90

33k = 99

k = 3

2. Calculate angle CPD using the value of k:

angle CPD = 20k + 4

angle CPD = 20(3) + 4

angle CPD = 64

3. Determine angle CBP by subtracting angle CPD from 90 as angle APB is 90 degree:

CBP = 90 -  CPD

CBP = 90 - 64

CBP = 26

4. Finally, calculate the arc measure of CAD by adding the arc measures of CBP, APB, EPD, and APE:

Arc measure of CAD = ∠CBP + ∠APB+ ∠EPD + ∠APE

Arc measure of CAD = 26 + 90 + 90 + 90

Arc measure of CAD = 296

Hence, the arc measure of CAD is 296 degrees.

Complete question:

In the figure below, AD and BE are diameters of circle P.

What is the arc measure of CAD in degrees?

The arc measure of CAD is 296 degrees.

1. Find k by setting angle DPE to 90 degrees:

33k - 9 = 90

33k = 99

k = 3

2. Calculate angle CPD using the value of k:

angle CPD = 20k + 4

angle CPD = 20(3) + 4

angle CPD = 64

3. Determine angle CBP by subtracting angle CPD from 90 as angle APB is 90 degree:

CBP = 90 -  CPD

CBP = 90 - 64

CBP = 26

4. Finally, calculate the arc measure of CAD by adding the arc measures of CBP, APB, EPD, and APE:

Arc measure of CAD = ∠CBP + ∠APB+ ∠EPD + ∠APE

Arc measure of CAD = 26 + 90 + 90 + 90

Arc measure of CAD = 296

Hence, the arc measure of CAD is 296 degrees.

Complete question:

In the figure below, AD and BE are diameters of circle P.

What is the arc measure of CAD in degrees?

Answer:

2,3 and 5

Step-by-step explanation:

Answer:

B, C, and E. or 2, 3 and 5.

Step-by-step explanation:

I got it correct on edge 2021.