In a quiz, you receive 7 points for a correct answer and –4 points for an incorrect answer.You receive 0 points if you do not answer the question.There are 20 questions in total.Is it possible to get a score of –11 in this quiz?

Answers

Answer 1

Answer:

Yes it is possible

Step-by-step explanation:

Given

[tex]n = 20[/tex]

[tex]x= 7[/tex] --- correct

[tex]y = -4[/tex] --- wrong

[tex]z = 0[/tex] --- empty answer

Required

Is a total of -11 possible?

To do this, we apply trial by error method.

After so many approaches, I found the following solution

[tex]x \to 3[/tex] -- Got 3 correctly

[tex]y \to 8[/tex] --- Failed 8

[tex]z \to 9[/tex] ---- Didn't answer 9

The above will give a score of -11.

We have:

[tex]3x+8y+9z[/tex]

[tex]3x+8y+9z = 3 * 7 + 8 * -4 + 9 * 0[/tex]

[tex]3x+8y+9z = 21-32 + 0[/tex]

[tex]3x+8y+9z = -11[/tex]

Hence, a score of -11 is possible


Related Questions

Solve.
-7 2/3+ (-5 1/2) +8 3/4= _
6 7/12
-4 2/3
-21 11/12
-4 5/12

Answers

I believe the answer is -4 5/12

3. Solve triangle ABC if a = 4, b = 6, and c = 5.
Show work

Answers

Answer:

4 x 6 x 5= 120 divided by 2 equals 60 because 4 x 6 = 24 x 5 = 120 and u divide by 2 when its a triangle. :) hope this helps

Step-by-step explanation:

https://socratic.org/questions/in-triangle-abc-a-4-b-6-c-8-how-do-you-find-the-cosine-of-each-of-the-angles

Tan C=
Help help help

Answers

Answer:

I believe the ans is (B) 40/9

Answer:

The answer is B. 40/9.

Step-by-step explanation:

We know, tan= opposite/adjacent

so, tan C = 40/9

using the formula 1 =PxRxT what is the interest on a $500 tv at 2% rate for 2 years

Answers

Answer:

$20.

Step-by-step explanation:

2% = 0.02.

Interest =  500*0.02*2

= $20.

Can someone help me? Don’t put a link I will report links

Answers

Answer:

3.5

Step-by-step explanation:

PLEASE I NEED SOME HELP WITH MATH

Answers

Answer:

28 cm area

Step-by-step explanation:

Use the vertical line test to determine whether y is a function of x

Answers

Answer:

Not a function of x

Step-by-step explanation:

A vertical line intersects the graph twice, which immediately tells us that y is not a function of x here.  If y were a function, the vertical line would intersect the graph in only one place.

No, A vertical line intersects the graph doubled, which instantly tells us that y exists not a function of x here. If y existed a function, the vertical line would intersect the graph in just one area.

What is Vertical line test?

If a vertical line can be drawn to connect the graph of a function in more than one place, then stands NOT a function. If it exists not feasible to draw a vertical line to touch the graph of a function in more than one place, then y exists as a function of x.

No, A vertical line intersects the graph doubled, which instantly tells us that y exists not a function of x here. If y existed a function, the vertical line would intersect the graph in just one area.

Therefore, the correct answer is option B. No.

To learn more about vertical line test

https://brainly.com/question/1821791

#SPJ2

Name two pairs of adjacent angles and two pairs of vertical angles in
the figure.

Answers

Answer:

choice 2

Step-by-step explanation:

whats the answers??????????????

Answers

the arrows pointing to 36

All divided into 10 percent so the answers are as follow

A) 37

B) 6.4

C) 8.58

You and two of your friends go to eat pizza

together. There are two deals:

1. 10% off of 1 pizza )

2. 30% off of 3 pizzas

Do you want to each pay separately and get

10% off of your bill, or do you want to split the

bill 3 ways and get 30% off of 3 pizzas?

Write a response that convinces your teacher

Answers

Answer:

The second deal offers a lower cost for the three friends.

Step-by-step explanation:

Let consider that each pizza has a price [tex]c_{o}[/tex]. Now, we proceed to check the total cost for each case, the better choice is whose total cost after discounts is the lowest.

Case 1 - 10 % off of 1 pizza (Split costs and buy 3 pizzas separately)

[tex]C = 0.9\cdot C_{o} + 0.9\cdot C_{o} + 0.9\cdot C_{o}[/tex]

[tex]C = 2.7\cdot C_{o}[/tex]

The cost for each person is:

[tex]c = \frac{C}{3}[/tex]

[tex]c = 0.9\cdot C_{o}[/tex]

Case 2 - 30 % off of 3 pizzas (Split costs and buy 3 pizzas in a row)

[tex]C = 0.7\cdot (3\cdot C_{o})[/tex]

[tex]C_{o} = 2.1\cdot C_{o}[/tex]

The cost for each person is:

[tex]c = \frac{C}{3}[/tex]

[tex]c = 0.7\cdot C_{o}[/tex]

The second deal offers a lower cost for the three friends.

Classify the function as linear or quadratic and identify the quadratic, linear, and constant terms.

f(x) = 6x2 + x − 12

A. quadratic function; quadratic term: −12x2; linear term: −6x; constant term: −12

B. linear function; linear term: x; constant term: −12

C. linear function; linear term: 6x2; constant term: −12

D. quadratic function; quadratic term: 6x2; linear term: x; constant term: −12

Answers

Answer:

D

Step-by-step explanation:

The function f(x) = 6x2 +x -12 is a quadratic since the highest degree polynomial term is 2. So that eliminates B and C. Option A is incorrect because the quadratic term is 6 not double the constant. There for the correct choice is D because the function is a quadratic and the quadratic term is 6x2, the linear term is x and the constant term is -12.

pleas help due to night​​

Answers

Answer:

w = 28.4 yds

Step-by-step explanation:

P = 12.7 + 4 + 2w

73.5 = 16.7 + 2w

56.8 = 2w

w = 56.8/2

w = 28.4

Answer:

w = 28.4 yards. Sorry need the points.

Need help ASAP please

Answers

Answer:

C

Step-by-step explanation:

Given

x² - 36 = 0 ( add 36 to both sides )

x² = 36 ( take the square root of both sides )

x = ± [tex]\sqrt{36}[/tex] = ± 6

That is x = - 6, x = 6 → C

The correct answer is C

What is missing from the graph?

HELP I WILL GIVE BRAINIEST

Answers

Answer:

I think the title is missing from the graph

Answer:

Y-intercept maybe? since the given function doesn't have a point where x = 0

Or it could also be the x and y-axis are not labeled

I'm so sorry if this is wrong but i hope this helps!

Which inequality has the solution shown?

Answers

the answer should be d

What is the correct answer?

Answers

Answer:

yellow

Step-by-step explanation:

this is how I solved it....

have a great day!

given - 4x/7greater 10

Answers

Answer:

x > 17.5

Step-by-step explanation:

So we are given that; [tex]\frac{4x}{7} > 10[/tex]

=> First multiply 7 on each side of "="

4x = 70

=> Now divide 4 on each side

=> x > 17.5

Hope this helps!

PLEASE HELP!

Prove that the diagonals of a parallelogram bisect each other. The midpoints are the same point, so the diagonals ___


A. are perpendicular to each other

B. are parallel to each other

C. bisect each other

D. have the same slope

Answers

Answer:

C

Step-by-step explanation:

they bisect each other if all diagonals have the same midpoint!!!

Does the graph shown below represent y as a linear function of x?

Answers

Answer:

No, it does not.

Step-by-step explanation:

A linear function of x will form a straight (non-vertical) line on a graph.

This is caused directly by the equation

y = ax + b

For some constant a and b, which means that the rate of change is constant.

A figure has 4 sides with two sets of parallel sides

Answers

Answer:

It can be a square!

Step-by-step explanation:

Answer:Parallelogram

Step-by-step explanation: Parallelogram: A quadrilateral with 2 pairs of parallel sides

ASAP

(AND HOW DID YOU GET THE ANSWER)

- Will mark brianist

Answers

its c

Step-by-step explanation:

Answer:

A) The mean would increase

Step-by-step explanation:

asap please !
Suppose that an insurance company has broken down yearly automobile claims for drivers from age 16 through 21 as shown in the following table. How much should the company charge as its average premium in order to break even on costs for claims?

Answers

Answer:

?

Step-by-step explanation:



An automobile's velocity, starting from a complete stop, is v(t) =140t/5t - 6 where v is

measured in feet per second. After what elapsed time would the automobile reach a

velocity of 44 Feet per second?

Answers

Answer:

3.3 seconds

Step-by-step explanation:

v(t) =140t/5t - 6 where v is velocity

The time, t when, v = 44 ft/s

Put v = 44 ft/s in the equation :

44 = 140t / 5t - 6

44(5t - 6) = 140t

220t - 264 = 140t

-264 = 140t - 220t

-264 = - 80t

Divide both sides by 80

264 / 80 = 80t/80

3.3 = t

Hence, automobile will reach a velocity of 44 ft /s after 3.3 seconds

The elapsed time would the automobile reach a velocity of 44 Feet per second is 3.3 seconds

Calculation of the elasped time:

Since

An automobile's velocity, starting from a complete stop, is v(t) =140t/5t - 6 where v is measured in feet per second.

So, the time should be

[tex]44 = 140t \div 5t - 6[/tex]

44(5t - 6) = 140t

220t - 264 = 140t

-264 = 140t - 220t

-264 = - 80t

3.3 = t

Hence, The elapsed time would the automobile reach a velocity of 44 Feet per second is 3.3 seconds

learn more about time here: https://brainly.com/question/24308516

Before rock climbing, Michelle wants to know how

high she will climb. She places a mirror on the

ground and walks backward until she can see the

top of the cliff in the mirror. She drew a sketch of

the situation. What is the height of the cliff?

Answers

Answer:

22 feets

Step-by-step explanation:

From the diagram attached :

We have two similar triangles which can be related proportionally :

Hence ;

Mitchell's height / distance from mirror = cliff height / cliff distance

Michelle's height = 5.5

Michell's distance from mirror = 4

Cliff height = h

Cliff distance from mirror = 16

We have ;

5.5 / 4 = h / 16

Cross multiply :

4 * h = 5.5 * 16

h = 88 / 4

h = 22 feets

Extra Credit:
8 congruent spheres are packed into a cube with
edge length x so that each sphere is tangent to 3
faces of the cube and 3 other spheres as shown.
what is the ratio of the total volume of the
spheres of the volume of the cube?

Answers

Answer:

Ratio of the volumes of the spheres and cube = 0.523

Step-by-step explanation:

From the figure attached,

Diameter of one sphere = Half of the measure of one side of the cube

                                        = [tex]\frac{x}{2}[/tex]

Radius of the sphere = [tex]\frac{\frac{x}{2}}{2}[/tex]

                                   = [tex]\frac{x}{4}[/tex]

Volume of a cube is given by the formula,

V = [tex]\frac{4}{3}\pi r^{3}[/tex]

Therefore, volume of one sphere = [tex]\frac{4}{3}\pi (\frac{x}{4})^{3}[/tex]

                                                        = [tex]\frac{x^3\pi}{48}[/tex]

Volume of 8 spheres = [tex]8\times \frac{x^3\pi}{48}[/tex]

                                   = [tex]\frac{x^3\pi}{6}[/tex]

Volume of a cube = (side)³

                              = [tex]x^3[/tex]

Ratio of the volumes of the sphere and cube = [tex]\frac{\frac{\pi x^3}{6} }{x^3}[/tex]

                                                                              = [tex]\frac{\pi}{6}[/tex]

                                                                              ≈ 0.523

Find the volume.
5cm
10 cm
15 cm

Answers

Answer:

750

Step-by-step explanation:

10x15x5=750

Hope this helps!

Have a lovely day!

Answer:

The volume is 5x5x5 or 125cm ^3

Step-by-step explanation:

The basic formula for the area of a rectangluar shape is lenghx, width x, and high

What is the volume of a sphere with a diameter of 49.3cm, rounded to the nearest tenth of a cubic centimeter?

Answers

The answer is V≈62739.26cm³

Find the area of the circle. Use 3.14
42 mm

Answers

Answer:

A = 5538.96mm

Step-by-step explanation:

A = πr2

A = π × 422  

A = 1764π

A = 5538.96

Please mark as brainliest if answer is right

Have a great day, be safe and healthy  

Thank u  

XD  

A bird flying at an altitude of 50 feet spies a worm in the ground up ahead. How far must the bird travel to the worm if the angle of depression from the bird to the worm is 56°?

Answers

Answer:

33.7 ft

Step-by-step explanation:

We solve the above question using Trigonometric function of Tangent

tan θ = opposite/adjacent

θ = 56°

Opposite = 50 ft

Adjacent = x

Cross Multiply

tan 56 = 50 ft/x

Cross Mulitiply

tan 56 × x = 50ft

x = 50ft/tan 56

x = 33.725425842 ft

Approximately = 33.7 ft

The bird must travel 33.7 ft to meet the worm

8. The bottom part of this block is a rectangular prism. The top part is a square pyramid. You want to
cover the block entirely with paper. How much paper do you need? Show ALL steps to find the
amount of paper. Do not use units in your answer. Enter the number only.
7 cm
5 cm
<
6 cm
6 cm
(The figure is not to scale)
Amount of paper:

Answers

Answer:

Amount of paper need = 140 cm²

Step-by-step explanation:

Given:

Length of rectangular prism = 5 cm

Width of rectangular prism = 5 cm

Height of rectangular prism = 4 cm

Base of triangular side = 5cm

Height of triangular side = 6 cm

Find:

Amount of paper need

Computation:

Amount of paper need = Curved surface area of rectangular prism +  Curved surface area of square pyramid

Amount of paper need = 2h(l + b) + 4[Area of triangle]

Amount of paper need = 2h(l + b) + 4[(1/2)(b)(h)]

Amount of paper need = (2)(4)(5 + 5) + 2[(5)(6)]

Amount of paper need = (8)(10) + 2[30]

Amount of paper need = 80 + 60

Amount of paper need = 140 cm²

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