Jalessa earned a score of 160 on a recent 50 question spelling contest. The scoring for the contest was +4 for each correct answer, -1 for each incorect answer, and 0 for each unanswered question. If she answered every question, what is the maximum number of questions that Jaleesa could have answered correctly?

Answers

Answer 1

Answer:

42 correct answers

Step-by-step explanation:

Set a system of equations.

c- correct, i- incorrect.

c + i = 504c - i = 160

Add the equations together:

5c = 210c = 42

Then find the value of i:

i = 50 - 42i = 8

Related Questions

Mark wishes to pay off a loan of $7560 in 42 months. How large will the monthly payments be?
can someone show me how to do it step by step please

Answers

Answer:

The monthly payments will be $180.

Step-by-step explanation:

You only have to divide $7560 by the 42 months Mark wished to pay the loan off in.

Which expresses 0.025 as a percent?
A- 0.025%
B- 2.5%
C- 0.0025%
D- 0.25%

Answers

Answer:

a is the answer I'm 1000% sure

Answer:

2.5%

Step-by-step explanation:

If you’re trying to convert a number to a percent, then multiply the number by 100



A 3-foot piece of brass wire costs $18.00. What is the price per inch?

Answers

Answer:

50¢

Step-by-step explanation:

$18.00=1800.

3*12=36

1800/36=50

Answer:

Step-by-step explanation:

the price of per inch is $2

Im giving all my points please help.
The weight of laboratory butterflies follows a Normal distribution, with a mean of 50 grams and a standard deviation of 3 grams. What percentage of the butterflies weigh between 47 grams and 53 grams?

99.7%
95%
68%
47.5%
34%

Answers

Answer:

68%

Step-by-step explanation:

please mark me brainliest

Answer: C

Hello,

Step-by-step explanation:

[tex]\overline{x}=50,\ \sigma=3,\ z=\dfrac{x-50}{3} \\\\p(47\leq x \leq 53)=p(\dfrac{47-50}{3} \leq z \leq \dfrac{53-50}{3} )=p(-1\leq z \leq 1)\\\\p(z\leq 1)=0.8413\ (in\ table)\\\\p(z\geq 1)=p(z\leq 1)=1-0.8413=0.1587\\\\p(-1\leq z \leq 1)=0.8413-01587=0.6826\\[/tex]

p≈68%

Answer C

Consider f(x)=4x and g(x) = square root of x^2-1 and h(x)= square root of 16x-1

Answers

f(x) = 4x

g(x) =

[tex] \sqrt{x^{2} \: - \: 1 } [/tex]

h(x) =

[tex] \sqrt{16x \: - \: 1} [/tex]

We want to check if h(x) = g(f(x))

So g(f(x)) =

[tex] \sqrt{(4x) {}^{2} - \: 1} [/tex]

Simplified;

g(f(x)) =

[tex] \sqrt{16x {}^{2} \: - \: 1 } [/tex]

But h(x) =

[tex] \sqrt{16x \: - \: 1} [/tex]

Hence g(f(x)) is not equal to h(x)

Can anyone help me to solve this question ??
find the zeroes for P(x)=6x³-13x²+x+2 given 0.5 is one of the zeroes

The answers :
-1/3 , 0.5 , 2

Answers

Step-by-step explanation:

that means the expression is the result of a multiplication with (x-0.5) being one factor.

so, we divide the whole expression by this and then deal with the remaining quadratic equation.

6x³ - 13x² + x + 2 / x - 0.5 = 6x² - 10x - 4

- 6x³ - 3x²

----------------------------

- 10x² + x + 2

- - 10x² + 5x

----------------------------

- 4x + 2

- - 4x + 2

----------------------------

finished. 0

so, the whole expression is also

P(x) = (x-0.5)×(6x² - 10x - 4)

now we need to find the 2 zero points of the quadratic part.

the general solution to a quadratic equation is

x = (-b ± sqrt(b² - 4ac))/(2a)

a = 6

b = -10

c = -4

x = (10 ± sqrt(100 - 4×6×-4))/12 =

= (10 ± sqrt(100 + 96))/12 = (10 ± sqrt(196))/12 =

= (10 ± 14)/12

x1 = (10+14)/12 = 24/12 = 2

x2 = (10-14)/12 = -4/12 = -1/3

what’s the answer to this math problem


2 divided by 5

Answers

Answer:

2.5

Step-by-step explanation:

that was so hard to figure out tbh

Two divided by 5 is 0.4

Ken Ken 5x5 please help

Answers

Answer:

5x5= 25

Step-by-step explanation:

5+5+5+5+5= 25

Find the equation for the line that passes through the point (5, -1), and that is parallel to the line with the equation y =-1/4x-9/2

Answers

Answer:

y = -1/4x + 1/4

Step-by-step explanation:

y = -1/4x + b

-1 = -1/4(5) + b

-1 = -5/4 + b

b = 1/4

find the real numbers x&y so that (x^2+2xy)+i(y-1) = (x^2-2x+2y) - i(x+y)​

Answers

In order for two complex numbers to be equal, their real and imaginary parts must match up.

So if

x ² + 2xy + i (y - 1) = x ² - 2x + 2y - i (x + y)

then

x ² + 2xy = x ² - 2x + 2y

and

y - 1 = -x - y

Solve for x and y : the first equation gives

x ² + 2xy = x ² - 2x + 2y

2xy = 2y - 2x

and the second gives

y - 1 = -x - y

2y = 1 - x

Substitute this into the first equation:

x (1 - x) = (1 - x) - 2x

x - x ² = 1 - 3x

x ² - 4x + 1 = 0

x = 2 ± √3

Then

x = 2 - √3   ==>   y = (-1 + √3)/2

x = 2 + √3   ==>   y = (-1 - √3)/2

both of which make both sides of the equation (2 - √3) + i (√3 - 3)/2.

I forgot how to do this for my brother

Answers

Answer:

11

Step-by-step explanation:

Add:

26 + 19 + 43

^       ^

   45 + 43

       88

Divide:

88 / 8 = 11

So, each tank has 11 fish.

Hope this helped.

Indicate which is the largest decimal in each of the following pairs.
0.0006 and 0.006

Answers

Answer:

0.006 is the larger decimal

Answer:

0.006 is the right answer

Step-by-step explanation:

Since (0.006) has the least amount of zeros after the decimal, it would be larger than the other decimal that has more zeros after the decimal.

help pls ! (i mark brainliest).

Answers

Answer: The answer is

25 Units

Answer:

36 units

please mark me brainleast

Write in standard form 4.025x10 2

Answers

Answer:

402. 5

Step-by-step explanation:

This is your answer hope this helps

And also pls mark me brainliest

Point M is located at (-2,7) . If point N is 13 units away from M, how many possible coordinate pairs (x,y) could point N have?

Answers

Uh I need a pic to help you

which real number lies farther from 0 on the real number line -15 or 10? Explain​

Answers

Answer:

-15

Step-by-step explanation:

-15 because it's 15 units left from the origin or 0 while 10 is 10 units right from the origin or 0

Please help me! I need details please!

Answers

Plotting is the place the dots belong to?

If you want to do a positive of which is like (x,5) then you go to in between the right top and bottom or x axis where the positives are and count, if the (2,y) is positive you count and go up if y is a negative then you count down how many number there is.

Let’s use (1,-1) first you go into the x-axis, one is a positive so you go to one in there, and go down one or to -1 bc the -1 is a negative and the digit is 1. ( I hope it made sense, if u need more help u can tell me.)

From this density, the probability that X is between 0.5 and 1.5 is:
a. 1/3,
b. 1/2.
c. 3/4
d. 1.

Answers

Answer:

bbbbbbbbbbbbbbbbbbbbb

From the density in the diagram, the probability that X is between 0.5 and 1.5 is 1/2. Option B

How do we solve for the probability density?

The probability density function of a random variable X is a function that gives the probability that X will take on a certain value.

In this case, the probability density function is a line segment that goes from 0 to 1.

The probability that X is between 0.5 and 1.5 is the area under the probability density function between 0.5 and 1.5.

This area is equal to the length of the line segment between 0.5 and 1.5, which is 1.

Therefore, the probability that X is between 0.5 and 1.5 is 1/2. Option B

Find more exercises on probability density;

https://brainly.com/question/29243488

#SPJ6

Full question

The Probability Density Of A Random Variable X Is Given In The Following Figure.

.........................................................

|........................................................|

0                       1                             2

                         x

From this density, the probability that X is between 0.5 and 1.5 is:

a. 1/3,

b. 1/2.

c. 3/4

d. 1.

If f(x)=2x-1and g(x)=x^2-3x-2,find( f+g)(x)

Answers

Answer:

[tex](f+g)(x)=x^2-x-3[/tex]

Step-by-step explanation:

We have [tex]f(x)=2x-1[/tex] and [tex]g(x)=x^2-3x-2[/tex]

Recall that [tex]f+g[/tex] is defined by [tex](f+g)(x)=f(x)+g(x)[/tex], therefore

[tex](f+g)(x)=f(x)+g(x)=2x-1+x^2-3x-2=x^2-x-3[/tex]

Calculate the area of each figure.

Answers

Answer:

230[tex]cm^{2}[/tex]

Step-by-step explanation:

17*10=170

12*10*1/2=60

170+60=230

Both Raquel and Felipe attempt to make a scale drawing of the original parallelogram shown

Answers

Answer:

Both of them drew the parallelogram right.

Step-by-step explanation:

In Raquel's drawing we can see that the parallelogram is shorter and smaller but both the opposite lines are congruent to each other and match the scale size to the original drawing. And it Felipe's drawing the parallelogram is longer and bigger than the original drawing but the opposite line are also congruent to each other and match the scale size to the original drawing!!

I hope you get it right! :)

Is 8,916,699 divisible by 4?
yes
no

Answers

Answer: no

Step-by-step explanation:

the ratio of two number is 4:7 and their hcf is 6 .find their lcm​

Answers

168

this is the full process

the sum of 4 consecutive integers is 406. find the integers

Answers

Answer and Step-by-step explanation:

When trying to figure this out, we know that the numbers have to be one after the other, like 1, 2, 3, 4, or 55. 56, 57, 58. The last digit in the numbers also have to add to 6.

The answer is:

100 + 101 + 102 + 103

It adds up to 406, and the integers are consecutive.

#teamtrees #PAW (Plant And Water)

I hope this helps!

Answer:

Step-by-step explanation:

let the numbers be n,n+1,n+2,n+3

n+n+1+n+2+n+3=406

4n+6=406

4n=406-6=400

n=400/4=100

then the numbers are

100,100+1,100+2,100+3

or

100,101,102,103

v=n/4(c+H) what is the answer for H?

Answers

Answer:

H = (n/4v) - c

Step-by-step explanation:

I ASSUME the equation is

v = n/(4(c + H))

multiply by (c + H)

v(c + H) = n/4

divide by v

c + H = n/4v

subtract c

H = (n/4v) - c

If the equation is v = (n/4)(c + H)

Then

H = (4v/n) - c

The sum of twice a number and three

Answers

the answer is 2x+3
doneeee

An alphabetic character representing a number

Answers

Answer:

a variable

Step-by-step explanation:

The answer is a variable because it's a letter that stands in place of a number

Answer:

simply refers to the type of Latin and Arabic characters representing the numbers 0 - 9, the letters A - Z

The volume of a sphere is a function of its​ radius,

V=43πr3.

Evaluate the function for the volume of a volleyball with radius

11.6

cm.


Answers

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

[tex]6525\text{cm.}^3[/tex]

Keep in mind that this is APPROXIMATE.

»»————- ★ ————-««  

Here’s why:  

⸻⸻⸻⸻

[tex]\boxed{\text{Volume of a Sphere Is:}}\\\\V = \frac{4}{3} \pi r^3\\----------------\\\rightarrow \text{We are given the radius of } 11.6\text{ cm.}\\----------------\\V = \frac{4}{3}(3.14) (11.6)^3\\\\V = \frac{4}{3}(3.14) 1560.896\\\\V \approx 6534.95125\text{cm.}^3\\\\\boxed{V \approx 6535\text{cm.}^3}[/tex]

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

How many right triangles have a hypotenuse that measures 4x + 2 meters and legs that measure 4x-2 meters and x + 6 meters? What are the dimensions of the triangle(s)?

Answers

9514 1404 393

Answer:

2 triangles; x={2, 18}10 m, 6 m, 8m74 m, 70 m, 24 m

Step-by-step explanation:

The given sides will form a right triangle when ...

  (4x +2)² = (4x -2)² +(x +6)² . . . . . the Pythagorean theorem is satisfied

  16x² +16x +4 = 16x² -16x +4 +x² +12x +36 . . . . eliminate parentheses

  x² -20x +36 = 0 . . . . . simplify to standard form

  (x -2)(x -18) = 0 . . . . . . factor

  x = 2 or 18 . . . . . . . . values of x that make the factors zero

There are two triangles.

For x = 2

  hypotenuse = 4(2) +2 = 10

  leg1 = 4(2) -2 = 6

  leg2 = 2 +6 = 8

  dimensions are 6 m by 8 m with hypotenuse 10 m.

For x = 18

  hypotenuse = 4(18) +2 = 74

  leg1 = 4(18) -2 = 70

  leg2 = 18 +6 = 24

  dimensions are 24 m by 70 m with hypotenuse 74 m.

each of the figure below is made of the unit square which of the following figure has the maximum perimeter
6 question pls

Answers

Answer:

c is the answer

Other Questions
Which of the following are considered physical properties of a substance?Color and odormalleability and hardnessmelting and boiling pointsall of the above put the bracket in the correct place 10-3x4-2+1=5 The wood on the back deck of a house needs waterproofing. The shape of the deckis a rectangle with the length of 40 feet and a width of 3 yards. A gallon can ofwaterproof stain covers 50 square feet and costs $19.99 per can plus 8% sales tax.You go to the hardware store to purchase the waterproof stain needed to completethe job. You give the cashier $150. How much change do you receive, or how muchadditional cash must you find in order to be able to pay for all of the stain you need?You must show all calculations.Area of Rectangle = length X widthYou cannot split up a can of stain.You must show all calculations. Find the value of x if 3(4x+3) Mr. and Mrs. Samson are planning to build a fence around their garden. They are comparing the different measurements for their plans. Plan A: 1.Posts are 4 feet in length 2. Post must be installed 7/8 feet below ground level. Plan B:1. Posts are 6 feet in length. 2. Posts must be installed 1 feet below ground level.1.What will be the height of the fence in plan A? 2. What will be the height of the fence in plan B? 3. Which fence will be taller and by how much? 4. Which plan would you recommend and why? 5. Mr. And Mrs. Samson decide to go with plan A and purchase the materials. Their total bill is $356.88. If they pay $220 in cash and charge the remainder, how much did they charge? why did small businesses like the constitution and why do they not want it to be ratified A paragraph must have five sentences Greg can complete a landscaping job in six days and Jeff can complete the same job in four days. Working together, and how many days could they complete the job? HELPPPPP MEEEEEEEEEE Helppppppppppp (15 points) which of these are goals of a collaborative discussion (choose all that apply)-Greater understanding-new insights-competition-to make new friends Question 1A factory has to transport raw materials to a project site. The total weight of the raw material will not be less than 1,500 tons. The factory manager plansto use two different trucking firms, Big Red has heavy duty trucks that can transport 200 tons at a cost of $50 per truckload. Common Joe is a moreeconomical firm, costing only $20 per load, but its trucks can transport only 90 tons. The factory manager does not wish to spend more than $450 ontransportation. The availability of trucks is the same for both firms.Part AWhat inequality will show the number of trucks used to transport the required raw material? Replace the inequality sign with the equal sign. Go toyour math tools and open the Graph tool to graph the resulting equation and paste it into the box below. Describe which part of the graph shouldbe shaded and whether the line should be dashed or not. The first thing a student should do when developing an action plan is __________.A.organize a list of action itemsB.prioritize essential actionsC.write a list of actionsD.clarify the goal Forest fire is a threat to the entire region of fauna and flora. Why does it occur? Give 3 reasons. Q=U+pV solve for p please Who is Stu Reid in meet me halfway This is an image of icecubes made of water. Iswater (or ice) a mixture or acompound made up ofmolecules?.a mixture.a compound made up of molecules 2) A comunicao um dos gerenciamentos mais relevantes a serem definidos no incio do projeto, mas especificamente no grupo de processo de planejamento. Pois ser por meio desta definio que todos devero manter a distribuio da informao de forma clara e objetiva, principalmente o gerente de projeto.De acordo com as informaes apresentadas no quadro a seguir, faa a associao dos mtodos de comunicao na coluna A com as suas respectivas descries na Coluna B e as TICS na Coluna C referente ao mtodo de comunicao.Coluna A - Mtodos de comunicaoColuna B - DescrioColuna C - TICsI.Comunicao Interativa a. til para informar muitas pessoas, com grandes volumes de informao. De forma geral as pessoas acessam o contedo remotamente, escolhendo quando querem obter as informaes, especificando um tempo para isso acontecer.1. e-mails, cartas, correio de voz, relatrios, mensagens por meio do celular etc.II.Comunicao ativa (push)b. Troca de informaes entre dois ou mais stakeholder. Esta a maneira que se entende ser a mais eficiente para garantir um entendimento comum a todos os envolvidos2. Intranets, e-learning e portais de conhecimento corporativo etc.III.Comunicao passiva (pull)c. Devem ser direcionadas para os interessados especficos, que foram designados a obter as informaes ou que necessitam destas. De forma geral no se tem garantias de que a informao foi recebida ou mesmo compreendidas, s havendo a garantia da distribuio3. Reunies presenciais ou a distncia por meio de vdeo conferncia, telefone ou Internet.Assinale a alternativa que apresenta a associao CORRETA entra as colunas.Alternativas:a)I b 2; II c 1; III a 3.b)I b 3; II c 1; III a 2.c)I c 3; II a 1; III b 2.d)I a 2; II c 3; III b 1.e)I b 1; II a 2; III c 3. 4.25x10 ^ -3 in standered notation what is the value of x in the equation 11+7x=-17