A history teacher has given her class a list of seven essay questions to study before the next test. The teacher announced that she will choose four of the seven questions to give on the test, and each student will have to answer three of those four questions. Suppose that a student has enough time to study only five questions. What is the probability that the student will have to answer a question that he or she did not study?

Answer:

Step-by-step explanation:

This uh

Answer:

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Step-by-step explanation:

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Answer:

Para la mayoría de las personas, comprar un auto es importante, solo superado por comprar una casa.

Por lo tanto, no nos sorprende que muchas personas de todo el mundo vayan a internet para investigar sobre fabricantes, modelos y opciones de financiamiento antes de comprar uno.

Los clientes hacen su propia investigación y tú deberías hacer lo mismo. Usa una encuesta online como alternativa para averiguar qué necesitan los clientes y qué puedes hacer para que tu concesionaria, agencia de alquiler, taller automotriz o empresa de autopartes y accesorios sea el lugar donde deseen comprar.

Crea una encuesta online hoy mismo

Comienza ya con una plantilla de encuesta diseñada por expertos o crea tus propias preguntas sobre autos. Además, te facilitaremos la recopilación de respuestas y el análisis de resultados.

Step-by-step explanation:

Answer:

penchegolmales gwe

Step-by-step explanation:

thats it thats all i konwe aloha

Answer: A.  [tex]3x^{12} - 2x + x^5[/tex]

Step-by-step explanation:

A. [tex]3x^{12} - 2x + x^5[/tex]

Here, highest exponent = 12

Degree of polynomial =12

B. 8x-200

Here, highest exponent = 1

Degree of polynomial =1

C. [tex]15x^3 + 3x^2 - 10[/tex]

Here, highest exponent = 3

Degree of polynomial =3

D. [tex]150x^3[/tex]

Here, highest exponent = 3

Degree of polynomial =3

Option A. has the polynomial with the highest degree as 12.

Answer:

A. 3x12 - 2x + x5

Step-by-step explanation:

Hope this helps

Answer:

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Answer:

m=9

Step-by-step explanation:

Answer:

( 3 x − 4 ) ( x + 5 )

Step-by-step explanation:

Answer:

(3x+4) (x-5)

Reverse Check It If You Have Doubts

Answer:

3.2

Step-by-step explanation:

Answer:

Answer: The first day the author reaches 100 days is on day 16.

To solve this problem, you could use a graphing calculator to graph the given equation. Then, determine when this line crosses 100. It crosses when x = 15.539. Therefore, we would have to round up to 16 so it is at least 100.

You could use the quadratic equation to solve: 100 = x^2 -12x + 45

Either you will get 16. If you use the quadratic formula, make sure to only use the positive answer.

Answer:

one shirt 25.00 one sweater 16.00

Step-by-step explanation:

$\text{one shirt: }\$25,\text{ one sweater: }\$16$

Let x be the cost of one shirt and y be the cost of one sweater; then

5x+5y6x+9y=205=294

The augmented matrix for this system of equations is

[5659205294]

Using Gaussian elimination, divide row one by 5 to get

[161941294]

Multiply row one by −6 and add the result to row two to get

[10134148]

Divide row two by 3 to get

[10114116]

After back substitution, y=16 and x=25.

The cost of one shirt is $25 and cost of sweater is $16.

Two or more expressions with an Equal sign is called as Equation.

Let x be the cost of one shirt and y be the cost of sweater.

5 shirts and 5 sweaters cost $205

5x+5y=205...(1)

6 shirts and 9 sweaters cost $294

6x+9y=294...(2)

Multiply equation (1) with 6 and equation (2) with 5.

30x+30y=1230..(3)

30x+45y=1470...(4)

Subtract 3 and 4

30y-45y=1230-1470

-15y =  -240

Divide both sides by 15

y=240/15

y=16

Now plug in y value in any of the equation

5x+16(5)=205

5x + 80 = 205

5x = 125

Divide both sides by 5

x=25

Hence, the cost of one shirt is $25 and cost of sweater is $16.

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ2

Answer:

(1,1) and (2,-4)

Step-by-step explanation:

i supposed each line is 1,2,3,4,5 because it is not given the graph numbers but I hope it could help

Answer:

D) r=5

Step-by-step explanation:

Any triangle formed with one side of the triangle being the diameter of the circle it’s inscribed in will be a right triangle.

6²+8²=c²

36+64=c²

100=c²

√100=c

c=10

So the diameter is 10.  That makes the radius 5.

Answer:

y = x + 15

Step-by-step explanation:

If two lines are perpendicular to each other, they have opposite slopes.

The first line is y = - x - 2. Its slope is -1. A line perpendicular to this will have a slope of 1.

Plug this value (1) into your standard point-slope equation of y = mx + b.

y = 1x + b or y = x + b

To find b, we want to plug in a value that we know is on this line: in this case, it is (-5, 10). Plug in the x and y values into the x and y of the standard equation.

10 = (-5) + b

Simplify.

10 = -5 + b

Now, add 5 to both sides to isolate b.

15 = b

Plug this into your standard equation.

y = x + 15

This equation is perpendicular to your given equation (y = -x - 2) and contains point (-5, 10)

Hope this helps!

Answer:

hi I didn't understand the question

can you please help me to understand.

I will try to give my best

Answer:

There are thousands of different combinations possible.

Step-by-step explanation:

Answer:

He still needs to catch 80% of the pokemon's.

Answer:80% are left.

Answer:

a

Step-by-step explanation:

the horizontal distance is shorter so the angle will be greater.

added:

tan a = AD/2a

tan Q - AD/3a

Just looking at the fractions AD/2a and AD/3a, the denominator of AD/2a is smaller so the resulting calculation will be greater, hence a is the larger angle.

Answer:

150 yards^2

Step-by-step explanation:

If all lengths are equal (assuming that the question refers to 5 yds x 5 yds x 5 yds) that means that it is a cube.

A cube has 6 faces and each face is 25 yds^2 (because of the 5 x 5 lenght sides)

If you multiply 25 by 6 (the amount of faces) you would get 150 yds^2

Answer:

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Answer:

Based on the data, if we find moderate/strong evidence against the null hypothesis and conclude the mean arsenic level of the water is greater than 8.0 ppb, we have made ____________.

a correct decision.

Step-by-step explanation:

Since there is enough evidence to conclude that the mean level of arsenic is greater than 8.0 ppb, the correct decision has been made.  There is no type I or type II error.   The type I error (called a false positive) occurs if we reject the null hypothesis when it is true.   Since we have simply rejected the null hypothesis when the alternate hypothesis is true, and the null hypothesis should be rejected, a correct decision has been made.

Answer:

decision

Step-by-step explanation:

Based on the data, if we find moderate/strong evidence against the null hypothesis and conclude the mean arsenic level of the water is greater than 8.0 ppb, we have made decision

Answer:

60

Step-by-step explanation:

m∠1=(55+65)/2=60

Answer:

0.24

Step-by-step explanation:  

Answer:

0.24kg

Step-by-step explanation:

The answer is 0.24 kg since

1 gram equals 0.001 kg

1g = 0.001kg

Answer:

54  

Step-by-step explanation:

216 - 3x = 324 -5x

subtract 216 from both sides

add 5x to both sides

divide both sides by 2x.

Answer:

A

Step-by-step explanation:

they tell me what came out

The triangle for which Cos B = 13/33 is triangle D.

The given triangle is a right triangle. In order to use Cos B, the value of the adjacent side and the hypotenuse has to be known. The adjacent side is the side that is adjacent to angle B. The hypotenuse is the longest side of the triangle.

Triangle A: cos b = adjacent / hypotenuse

hypotenuse = √13² + 33² = 35.5

Cos B = 13 / 35.5

Triangle B: cos b = adjacent / hypotenuse

hypotenuse = √13² + 33² = 35.5

Cos B = 33 / 35.5

Triangle C: cos b = adjacent / hypotenuse

Adjacent = √33² - 13²  = 30.3

Cos B = 30.3 / 33

Triangle D: cos b = adjacent / hypotenuse = 13/33

To learn more about triangles, please check: https://brainly.com/question/7894175

Answer:

D. 5 5/6

Step-by-step explanation:

2 1/2 + 3 1/3

= [tex]\frac{5}{2}[/tex] + [tex]\frac{10}{3}[/tex]

= [tex]\frac{15 + 20}{6}[/tex]

= [tex]\frac{35}{6}[/tex] = 5 5/6

Answer:

5 1/3

Step-by-step explanation:  i am pretty sure

Answer:

I think the answer is 11i

there is the correct answer.

Answer:

657in squared

Step-by-step explanation:

Answer:

1 oz of chips has 120mg of sodium, while in 1 cup of soda there are 50mg of sodium.

Step-by-step explanation:

This question can be solved by a system of equations.

I am going to say that:

x is the number of mg of sodium in 1 oz of chips.

y is the number of mg of sodium in a cup of soda.

Bryan ate 5 oz of chips and drank 1 cup of soda for a total of 650 mg of sodium.

This means that:

[tex]5x + y = 650[/tex]

Jadyn ate 1 oz of chips and drank 5 cups of soda for a total of 250 mg of sodium.

This means that:

[tex]x + 5y = 250[/tex]

From the first equation:

[tex]y = 650 - 5x[/tex]

Replacing in the second

[tex]x + 5(650 - 5x) = 250[/tex]

[tex]x + 3250 - 25x = 250[/tex]

[tex]25x = 3000[/tex]

[tex]x = \frac{3000}{25}[/tex]

[tex]x = 120[/tex]

[tex]y = 650 - 5x = 650 - 5*120 = 650 - 600 = 50[/tex]

1 oz of chips has 120mg of sodium, while in 1 cup of soda there are 50mg of sodium.

Answer:

1080

Step-by-step explanation:

1000*8%=80

1000+80=1080

Answer:

Easy! The answer is 100!

Count how many cubes are in each row, which is 10. Count how many stacks are there, which is also 10. 10 times 10 = 100!

Step-by-step explanation:

Answer:

r

Step-by-step explanation: