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

hello, i need help.
find m∠bae

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Answer:

125

Step-by-step explanation:

180-55=125

PLS HELP, WILL REWARD BRAINLIEST ASAP :)

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5447 x 45 equals nine

Please help i dont know the answer and this is due today

Q Nine divided by the product of a number and Five

Q2 The product of a sum and diffrence of x and y​

Answers

Step-by-step explanation:

Q Nine divided by the product of a number and Five

Let the number = x

product of a number and Five = x * 5 = 5x

The expression is given as;

[tex]\frac{9}{5x}[/tex]

Q2 The product of a sum and difference of x and y​

Sum of x and y = x + y

Difference of x and y = x - y

The expression is given as;

(x + y) * ( x -y)

x^2 + xy - xy - y^2

x^2   - y^2

Leo ran 1 1/8 miles every day and for 7 days. He wrote the equation below to help him find the total number of miles he ran for the week.​

Answers

Answer:

7.875

Step-by-step explanation:

1 1/8 times 7= 7.875

thankssss plzzz helpp

Answers

I believe 254.47 is the correct answer
I think the areas 56.52

16
Kaci has $760 in her savings account and $200
in her checking account. If she withdraws $40
from her checking account, find the ratio of her
checking account balance to her savings
account balance. Write the ratio in simplist
form.
What is 200 - 40? Also, the GCF of 160 and 760 is 40

Answers

Answer:

Step-by-step explanation:

mkk

The distance in miles that some students live from school is show in the histogram which stamen about the data in the histogram is true

Answers

Answer:

D). The distribution of the data is symmetrical, so the mean and median are within the "2.1-3 mile" category.

Step-by-step explanation:

The last statement i.e. 'The distribution..."2.1-3 mile" category' correctly asserts a true claim regarding the data provided in the given histogram. It aptly states that the dissemination of the data is uniform(2, 4, 5, 4, 2(no. of students) live between the distance of 0.1 to 5 miles from the school) and this causes both the mean, as well as, the median of the distribution to fall in the category between '2.1 to 3 mile.' Thus, option D is the correct answer.

Angle DEF is similar to angle JKL.Find the length of JL and KL? First triangle DF 12.4cm DE 4cm EF 9cm other triangle JK 3cm JL ? KL ?

Answers

Answer:

KL = 6.75cm

JL = 9.3cm

Step-by-step explanation:

SInce Angle DEF is similar to angle JKL.

Then;

DE/EF = JK/KL

Given

DE = 4cm

JK = 3cm

EF = 9cm

Substitute

4/9 = 3/KL

4KL = 27

KL = 27/4

KL = 6.75cm

Similarly

DF/EF = JL/KL

12.4cm/9 = JL/6.75

9JL = 12.4 * 6.75

9JL = 83.7

JL = 83.7/9

JL = 9.3cm

i need help pls and thank you

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the fourth table is the correct answer

Please answer help thank you

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(x1,y1) and (x2,y2)

Slope = y1 - y2/x1 - x2


Slope
= 10-2 / 1-(-3)

= 8/1+3

= 8/4

= 2


The answer is m=2.

which of the following statements is correct​

Answers

C is the right answer for your question

Please help! 20 points!

Answers

Answer:

i dont know sorry

Step-by-step explanation:

Solve system of linear equations by graphing.

-2x - 5y = -10
3x + 6y= 18

Answers

Answer:

this is the answer bb

Step-by-step explanation:

HELP!
What is the missing term? What is the rule? 8 9/10, 7 7/10, 6 1/2 , _________

Answers

Answer:

5 3/10

Step-by-step explanation:

You subtract 1 1/5 from the number (n).

(In equation) x = n - 1 1/5

5 3/10

The rule is to subtract 1 2/10 each time

To figure this out, first look at the whole numbers

8, 7, 6, ___

You can see that your subtracting one to get to the next number.

Now look at the fractions.

9/10, 7/10, 1/2

To figure out the change you want all the fractions to have the same denominator.

1/2 = 5/10

9/10, 7/10, 5/10, ___

You can now also see that 2/10 is being subtracted each term.

Adding the two changes you get 1 + 2/10 = 1 2/10

The dimensions of a box are (x+3),(3x-4),(5x+1). What is the volume of the box? 9x 9x^3 15x^3+28x^2-55x-12

Answers

Answer:

15x^3+28x^2-55x-12

Step-by-step explanation:

Dimensions of the box are (x+3), (3x-4), and (5x+1). Let these be length, width and height of the box.

assuming the box is cuboidal

Therefore, volume of the box  = Length× width× height

⇒volume of the box = (x+3)×(3x-4)×(5x+1)

now, (x+3)×(3x-4) = (3x^2+5x-12)

Now, volume of the box = (3x^2+5x-12)×(5x+1)

= 15x^3+28x^2-55x-12

Help Please ASAP all answers are greatly appreciated!

Answers

Answer:

its either a or b not entirely sure on which

Step-by-step explanation:

the area of the rectangle is 180 (15x12) so it cant be 180 and the semicircle is smaller then the rectangle so it cant be more than 360 hope this helps

Answer:

236.5

Step-by-step explanation:

Sorry if it looks messy, I messed up in the middle!

whats 3x3+4 use pemdas ?

Answers

Answer:

13

Step-by-step explanation:

Answer:

13

Step-by-step explanation:

First, we do 3x3 which is 9.

Then, we do 9+4=13

Hope this helps =]

Urgent!
E is directly proportional to F.
When E = 2, F = 8
(a) Find an equation for E in terms of F.
(b) Find the value of E when F = 30
(C) Find the value of F when E = 100

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Answer:

a. 4×2 = 8

b. E = 120

c. F = 400


A. Y
B. X
C. W
D. Z

Answers

The answer is C. W is the answer for your question
C is the answer! Good luck

I NEED ANSWER FAST!

. Cylinder A has a radius of 4 inches and a height of 2 inches. Cylinder B has a radius of 2 inches. What is the height of Cylinder B if both cylinders have the same volume?
(Hint: Start by finding the volume of Cylinder A.)

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the height of cylinder B is 4 inches

what is 20.907x0.0004

Answers

Answer:

0.0083628

Step-by-step explanation:

Here is the answer

Here are four number cards. 7,1,8,4. Using only three of the cards, write down the three digit number closest to 800 that can be made.

Answers

Answer:

784 or 814

Step-by-step explanation:

these two numbers can be the closest written to the value of 800

A circle has a radius of 50 cm. Which of these is closest to its area?

Answers

Answer:

Approximately 7853.98

Step-by-step explanation:

The formula to finding the area of a circle based on radius is [tex]\pi r^2\\[/tex], where r is radius. Hope this helped :D

What integer is closet to n​

Answers

Answer:

Rounding to the Nearest Integer

The most common type of rounding is to round to the nearest integer. The rule for rounding is simple: look at the digits in the tenth's place (the first digit to the right of the decimal point).

¿Cuál es el inverso aditivo de -3?

Answers

Answer:

3 is the additive inverse of -3

Step-by-step explanation:

-3 + 3 = 0

Round the following real number to the nearest hundredth: 67.498

Answers

Answer:

67.50

Step-by-step explanation:

Answer:

67.5

The hundredth is always the second number after the decimal point (to the right).

So, when rounding to that number look at the number on the right of it, which in this case is 9.

Then, if the number is 5 to 9, round up, but if it is 0 to 4, round down.

In this case, the number above 0.49 is 0.5.

Hope this helps! I would really appreciate it if you would mark me brainliest! Have a blessed day!

$480 is shared in the ratio 4:3:5

Answers

Count the ratios together
4+3+5=12

Now multiply the $480 into the ratios over the total ratios

4/12 x 480= $160

3/12 x 480= $120

5/12 x 480=$200

4 : 3 : 5
$180:$120:$200

help me plsssssssssssss

Answers

9514 1404 393

Answer:

  (a) $2.857 million

  (b) vertical compression by 1/3; shift left by 6; shift up by 2

Step-by-step explanation:

(a) Find the year difference (2021-2010=11) and put that value where x is. Then do the arithmetic.

  g(11) = (∛(11+6))/3 +2 = (∛17)/3 +2 ≈ 2.57128/3 +2 ≈ 0.857 +2

  g(11) ≈ 2.857 . . . 2021 revenue in millions of dollars

__

(b) For parent function f(x), the transformation ...

  g(x) = a·f(x -h) +k

represents a vertical scaling by a factor of 'a', right shift by h units, and up shift by k units.

Comparing this form to the given g(x), we see ...

  a = 1/3 . . . vertical compression by a factor of 1/3

  h = -6 . . . .right shift 6 units

  k = 2 . . . . up shift 2 units

_____

Additional comment

The vertical scaling is called "compression" when the scale factor is less than 1, and "stretch" when the scale factor is greater than 1. Here, the scale factor of 1/3 means the graph is vertically compressed.

Fred runs 4 laps around a track in 6 minutes. How many minutes per lap is that? How many laps per minute?

Answers

Answer:

0.67 Laps per minute

Step-by-step explanation:

4 Laps over 6 Minutes

4/6 = 0.67

PLZ PLZ PLZ PLZ HELP WILL GIVE BRAINLIST IF CORRECT!

Answers

Answer:

104.92

Step-by-step explanation:

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