Mathematics High School

A multiple-choice test consist of 100 questions. A correct answer is with 2 Marks While an incorrect answer is worth -1 Marks if a student received a score of 80 how many questions did the student answer incorrectly?

Answers

Answer 1

Answer:

im guessing 20 questions are incorrect

Step-by-step explanation:

Related Questions

1. What's the probability that a respondent was a boy AND in year 8?

Answers

Answer:

8/18?

Step-by-step explanation:

Please please help help

Answers

Answer:

7

Step-by-step explanation:

35/5

divide the 5 d's by the longest piece of tape.

A hot air balloon went from an elevation of 5,717 feet to an elevation of 3,388
feet in 34 minutes. What was its rate of descent?
The rate of the descent was
feet per minute.

Answers

Answer:

68.5 feet per minute

Step-by-step explanation:

rate of descent = feet / minute

First you need to find how many feet it has descended:

beginning altitude- ending altitude = total feet descended

5717 feet - 3388 feet = 2329 feet

To figure out the rate of decent we will divide

2329 feet / 34 minutes = 68.5 feet per minute

The hot air ballon descended 68.5 feet per minute for 34 minutes.

An electronic store is having a sale. One item has a price of $191.00 and a sign "on sale for 31% of the original price."
a. as a decimal, 31% is...
b. The sale price of the item would be $...
c. A closer look shows that the sign says "31% off the original price." What would be the sale price? Can you use your first answer to help you find this answer? Explain your reasoning.

Answers

B is the correct answer

The measure of an angle is twenty-four times the measure of its complementary angle. What is the measure of each angle?

Answers

Answer:

        3.6° and 86.4°

Step-by-step explanation:

24x   - measure of an angle

x      - the measure of a complementary angle

Complementary angles adds to 90°

x + 24x = 90°

25x = 90°

x = 90°÷25

x = 3.6°

24x = 24·3.6° = 86.4°

Answer:

3.6° and 86.4°

Step-by-step explanation:

I did this on ixl and got it right

Find the missing side length of a right triangle with a leg measure of 3 inches and a hypotenuse measure of 5
inches.

Answers

a=3 in
c=5 in
c^2=a^2+b^2
5^2=3^2+b^2
25=9+b^2
b^2=25-9
b^2=16
b= √16
b=4

can someone help me out in this, ill give brainliest if correct, you can answer by doing it in a paper and taking a picture of it or just find out another way​

Answers

answer to the observation is “ i noticed they’re all congruent “ and the rest are “ congruent “ for each line .

Answer:

Answering so you can give other person branliest

how many two digits divisible by 6

Answers

Answer:

The first two digit number divisible by 6 is 12 and The last two digit divisible by 6 is 96 Let a=12, d=6, an=96

Step-by-step explanation:

Answer:

15.

There are 15 2 digit numbers which are divisible by 6.

what is 2.1 divided by 1.488

Answers

Answer:

= 0.708

Step-by-step explanation:

The diagram shows a circle contained in a square. What is the simplified ratio of the area of the circle to the area of the square?

Answers

Answer:

π/4

Step-by-step explanation:

We have a = 2r

Area of square:

A₁ = a² = 4r²

Area of circle:

A₂ = πr²

Ratio:

A₂/A₁ = πr²/4r² = π/4

Answer:

π/4

Step-by-step explanation:

Hope this helps

Write an equation in slope intercept form from a table?
X. 4. 6. 7. X. 14. 20. 23

Answers

9514 1404 393

Answer:

  y = 3x + 2

Step-by-step explanation:

Assuming your table values are (x, y) = (4, 14), (6, 20), (7, 23), the slope and intercept formulas can be used.

  m = (y2 -y1)/(x2 -x1)

  m = (20 -14)/(6 -4) = 6/2 = 3

  b = y -mx

  b = 14 -3(4) = 2 . . . . for (x, y) = (4, 14)

Then the equation of the line is ...

  y = mx + b

  y = 3x + 2

So if there is a person with the height of 5'1 and there is another person with the height of 6'1... How many inches are between the heights like how many inches taller is the 6'1 person taller than the 5'1 person?
also I'll give the brainlest

Answers

Answer:

12 inches

Step-by-step explanation:

PLEASE HELP ILL MARK BRAINIEST

Answers

Answer:

(3,4)

Step-by-step explanation:

Select all of the ordered pairs that are solutions to the system

Answers

Answer:

(0,0)

(2,2)

(0,1)

Step-by-step explanation:

All of these points lie inside

A store purchased a plasma screen TV for $770 and marked it up 150%. During a sale, the store marked it down 20%. What was the discount price on the plasma screen TV?​

Answers

Answer:

1540

Step-by-step explanation:

First find the new price after the markup

The markup is

770 * 150%

770 * 1.5

1155

Add this to the original price

770 + 1155

1925

Now find the discount

1925*20%

1925*.20

385

Subtract this amount from the 1925

1925-385

1540

The final price is 1540

Answer:

Solution given:

cost price [c.p] of TV =$770

MP=c.p+ 150% of c.p=$770+150/100×770=$1925

discount [D]=20%

now

discount amount=D% of MP=20/100×1925=$385 is your answer.

$385 was the discount price on the plasma screen TV.

please answer this someone I’m desperate

Answers

coordinates: (3, -3)
this point R would be the same distance that point P is from point Q, fulfilling the statement of it being an isosceles triangle

A triangle has one angle that measures 61 degrees, one angle that measures 44 degrees, and one angle that measures 75 degrees. what kind of triangle is it?​

Answers

Answer:

scalene triangle

Step-by-step explanation:

hshavsgtsusbevebbeush

Plz helpppppppppppppp helpppppppppppppp ​

Answers

Answer:

(A).option is correct..54cm2

Having trouble please help

Answers

Answer:

no real roots

Step-by-step explanation:

Hey There!

If you didn't know you cannot square a negative number to get a negative number

Why? let me give you an example

-4x-4=16 not -16 therefore there are no real roots to a negative number

what is the answer to the problem 5p-14=8p+4

Answers

p=-6 hope that helps also can u give me brainliest? do u need work shown? if so i can comment it

Answer:p=-6

Step-by-step explanation:

find the measure of angle x

Answers

Answer:

50°

Step-by-step explanation:

Because a square has a 90° angle and if you subtract 40° from 90° you get 50°.

1. 4(2x + 3) = 36
Thanks please help with this

Answers

Answer: x=3

Step-by-step explanation: Hope this help :D

Answer:

x=3

Step-by-step explanation:

4(2x+3)=36

8x+12=36

8x=24

x=3

Rectangle PQRS is rotated 90° counterclockwise about the origin.

On a coordinate plane, rectangle P Q R S has points (2, 3), (5, 3), (5, 1), (2, 1).

What are the coordinates of point Q’?
Q’( –3, 5)
Q’(3, –5)
Q’(5, –3)
Q’(–5, –3)

Answers

(5,-3) should be the answer but I’m not sure hope I helped you out

Answer:

(5, -3) i think :)

Step-by-step explanation:

i am doing the same question right now so... we will see

A baker has 15 cups of flour. He sets aside 4 cups of flour, and uses the rest for a cookie recipe that calls for 1/2 cup of flour. How many batches of cookies can the baker make? pls help ana2928

Answers

22 batches
15-4= 11
11 x2=22

(help please)Identify the slope of the graph below!

Answers

Answer:

I think its positive. I'm not sure though lol.

Answer: zero

Step-by-step explanation:

learned this freshman year

x²-5x+6/5x-25 help please​

Answers

Answer:

x^2-5x+6x-25

            ---   (6x over 5)

            5

Step-by-step explanation:

1. Combine multiplied terms into a single fraction

x^2-5x+6x-25

into

x^2-5x+6x-25

            --- (6x over 5)

             5

I hope this helps. If you need more clarification please let me know.

:)

Find the Value of X Please

Answers

Answer:

x=6

Step-by-step explanation:

3x-5=2x+1

x-5=1

x=6


i need help with this question asap it’s due today and soon

Answers

the answer would be 49m^2

A doghouse is to be built in the shape of a right trapezoid, as shown below. What is the area of the doghouse?

24.5 square feet
59.5 square feet
70 square feet
147 square feet

Answers

A. 24.5 square feetttttttttttttttttttttt

What is another way to write x2.x4?

Answers

Answer:

If x2.x4 and x2= 2x, x4=4x, while . means multiplication. therefore it can be written as 2x × 4x

Other Questions
The following data are for Guava Company's retiree health care plan for the current calendar year. Number of employees covered 5 Years employed as of January 1 4 (each) Attribution period 20 years EPBO, January 1 $ 60,000 EPBO, December 31 $ 63,600 Interest rate 6 % Funding and plan assets None What is the correct entry to record postretirement benefit expense for the current year simplify fully (9(x+7))(3(x-1)) A payroll tax is used to provide healthcare to elderly and retired people. *Federal Income TaxState Income TaxSocial SecurityMedicare Unscramble the words please helllp Findet ihr mich alle hbsch? differentiation between the people oriented communication and time oriented communication. given that two vectors A=i,2j-2k and B=6i+3j+2k find A +B According to scientists, donkeys and horses share a common ancestor. Which evidence shows that the two organisms are related?Group of answer choicesBoth run fast.They have the same diet.They have the same bones in their limbs.Both are tall. Read the following quotes about success, then explain how each quote relates to your personal definition of success, whether you agree with them or not. Write a total of 5 sentences or more.A. The measure of success is not whether you have a tough problem to deal with, but whether it is the same problem you had last year. -John Foster DullesB. The most important single ingredient in the formula of success is knowing how to get along with people. -Theodore RooseveltC. I've failed over and over and over again in my life and that is why I succeed. -Michael JordanD. Our greatest weakness lies in giving up. The most certain way to succeed is to always try just one more time. -Thomas EdisonE. The road to success is dotted with many tempting parking places. -author unknown HELLLLLP MEEEE IDENTIFY THE HEIGHT please help again again wonderful people!When plotting points on the coordinate plane below, which point would lie on the y-axis?A coordinate plane.(0, 1)(7, 0)(6, 8)(8, 2) Red-green color blindness (c) is a recessive sex-linked trait. A colorblind male marries a normal female.Their daughter is colorblind. Complete a Punnett square explaining how this is possible. Isaac has a piece of rope that 5 yards long. Into how many 1/2 - yard pieces of rope isaac can cut? a moon phase that looks like a full circle is called. Which bond(s) shown are double bonds? Please answer quick and just write explanation quick pls hurry quick for brainlessly ee Write as fraction in its lowest form: 0.342 *1 point171/500342/10034/10342/10 the police has arrested the thief passive voice alton Corporation is currently selling 104 units of its product. The company is deciding the price that it should charge for a bulk order of 40 units. The variable cost per unit is $200. This order will not involve any additional fixed costs and the company's current sales will not be affected. The company targets a profit of $4,000 on the bulk order. What selling price per unit should the company quote for the bulk order Please helpThe period of an oscillation is measured to be 0.0833 seconds. What isthe frequency of this oscillation? *1.0833 Hz0.287 Hz9.8 Hz12 Hz0.007 Hz