A student got 15 correct answers out of 20 questions on his test.What is the percentage he got incorrect

Answers

Answer 1
he got a d- or just a d

Related Questions

Write x2 + 12x + 6 = 0 in vertex form using the completing-the-square method. (2 points)

a
(x - 12)2 - 30 = 0

b
(x - 6)2 + 36 = 0

c
(x + 6)2 - 30 = 0

d
(x + 12)2 + 36 = 0

Answers

Answer:

C- is more likely going to be your answer.


1. Delia brushes her teeth 6 hour
each day.
Units of Time
1 week = 7 days
1 hour = 60 minutes
Write and solve an equation to find
how many minutes Delia brushes
her teeth in 1 day. Then use that to
find the number of minutes she
brushes her teeth in 1 week.

Answers

Answer:

Answer:

PART A: 28 hours, PART B: 16800 minutes

Step-by-step explanation:

Delia Brushes her teeth =  1/6 hour

PART A

Total Week= 1 week

Total number of  days in a week= 7 days

Total number of hours in a day= 24 hours

Total number of hours in a week= 24× 7 hours

Total number of hours in a  week=  168 hours

Number of hours that Delia brushes her teeth =  × 168 hours

Number of hours that Delia brushes her teeth = 28 hours

Hence, the correct answer is 28 hours

PART B

Total number of  days in a week= 7 days

Total number of hours in a  week=  168 hours

Total number of minutes in a  week=  168 × 60

Total number of hours in a  week=  100800 Minutes

Number of minutes that Delia brushes her teeth = × 100800

Number of hours that Delia brushes her teeth = 16800 minutes

Hence, the correct answer is 16800 minutes

Step-by-step explanation:

E = {10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23}
A = {odd numbers}
B = {multiples of 3}
Complete the Venn diagram for this information.
6
A
B
e
15,2​

Answers

Answer:

A=11,13,17,19 B=12,18 None=10,14,16,19 Both=15

Step-by-step explanation:

11,13,15,17,19 are all odd so they go in A

12,15,18 Are all multiples of 3 so they go in B

10,14,16,19 Are not classified so they go outside of the diagram but inside E

15 is odd and a multiple of 3 so put it in the center and not with A and B

^2sin(x+45)=sinx + cosx

Answers

Answer:

steps below

Step-by-step explanation:

√2 * sin(x+45°)

= √2 * (sinx cos45° + cosxsin45°)

= √2 * (sinx * √2/2 + cosx * √2/2 )

= (√2 * √2/2) (sinx + cosx)

= sinx + cosx

please help and can you explain how you got it? Also what grade level is the work (6th, 7th or 8th)?

Answers

Answer:

The equation of line p is y = -³/₂x + 3

Step-by-step explanation:

Let's first find the slope of the line.  That's equal to Δy/Δx:

(-3 - 6) / (4 - (-2))

= -9 / 6

= -3/2

With that, we can plug it in to the format:

Δy = sΔx, or (y - y1) = s(x - x1):

y - 6 = s(x - (-2))

y - 6 = (-3/2)(x + 2)

y = -3x / 2 - 3 + 6

y = -³/₂x + 3

Sketch a graph to math this: The Olympic skier waited at the top of the mountain for 2 minutes before heading down the ski slope. She went faster and faster for the first 5 minutes, and then she slowed to a stop. Finally, it took her 10 minutes to walk to her car.

Answers

Answer:

7 minutes

Step-by-step explanation:

what is the answer
for this

Answers

Answer: 2.5 // 2 1/2

Step-by-step explanation:

1/2 + 1/2 = 1

3/4 + 3/4 = 6/4 = 1 1/2

1 + 1 1/2 = 2 1/2

2 1/2 = 2.5

I will offer brainalist + 10 points for correct answer (:

Answers

Answer:

D) complimentary

Step-by-step explanation:

complimentary angles add up to 90 degrees

Answer:

D. Complementary!!!!!!!

Step-by-step explanation:

Factor the follow expression:
8x−10

Select one:

2(4x−10)

2(x−5)

8(x−10)

2(4x−5)

Answers

hereeeeeeeeeee 2(4x-5)

Answer:

2(4x-5)

Step-by-step explanation:

900 ÷ 10 =

7,900 x 10 =

What number is 10 times greater than 200?

What number is 10 times less than 300,000?

Answers

Answer:

900÷10= 90

7900×10= 79000

200×10= 2000

300000×10= 30000

the square root of 50 plus 5 square root of 8
[tex] \sqrt{50} + 5 \sqrt{8} [/tex]

Answers

The simplify expression is 15 squared 2 or 21.2132

A farmer picked 496 oranges. He also picked 435 lemons. Which shows
how many more oranges than lemons he picked?
496 X 435
496 ÷ 435
496 - 435
496 + 435

Answers

It would be letter C

Answer:

C

Step-by-step explanation:

:)

https://kami.app/987hunntx5Pl can sum 1 help its 18Q and im doing somethig so i can get it finished rn its due in 15 min

Answers

Answer:

The link doesn't exist or was deleted or I don't have permission to view it.

Step-by-step explanation:

I need help please if u help me maybe we can be friends ? :’D its math:

Evaluate the expression 10 + (8 - 4)2 ÷ 2.

options:
1. 10
2. 9
3. 1
4. 18

Answers

Answer:

I think ans is 18 but i am not sure

Answer:

This involve bodmas..so bracket first..(8-4) is 4 so we will get 10+4*2/2

so multiplication next

10+8/2

10+4=14

If cm on a map represents 20km on the ground ,how far apart are two villages that are 0.5cm aprt on the map?​

Answers

Answer: 10 km

Step-by-step explanation:

20 km = 1 cm

villages are 0.5 cm apart

0.5+0.5=1

20/2= 10

so 10 km.

Write in summation notation.
11) -2+ 1 + 4+...
+ 13
I’ll give brainliest to whoever answers correctly first

Answers

If that is -2+1+4+13 I think it should be 16

solve[5x-6/7] = -8 for x
please help

Answers

Answer:

7=7

Step-by-step explanation:

1 Let x=\frac{13}{5}x=  

5

13

​  

.

5\times \frac{13}{5}-6=7

5×  

5

13

​  

−6=7

2 Cancel 55.

13-6=7

13−6=7

3 Simplify  13-613−6  to  77.

7=7

7=7

hope this helps.

Which of the following situations can be represented by the expression 3n – 15 ? Select all that apply. ​

Answers

Answer: B

Step-by-step explanation:

You are at a coffee shop and notice that as the temperature of the room gets colder, more people order hot beverages. From this observation, you conclude that there is a _______ between the temperature and hot beverage sales at this coffee shop. Group of answer choices negative relationship curvilinear relationship no relationship positive relationship

Answers

Answer:

negative relationship.

Step-by-step explanation:

An experiment can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause) in order to be able to determine or measure the dependent variable (the effect).

This ultimately implies that, an experiment can be used by scientists to show or demonstrate how a condition causes or gives rise to another i.e cause and effect, influence, behavior, etc in a sample.

Cause and effect can be defined as the relationship between two things or events in which an occurrence one (cause) leads to the occurrence of another (effect).

A negative relationship or correlation can be defined as the relationship between two variables in which there exist an inverse relationship between them i.e as one variable increases, the other decreases and vice-versa.

In this scenario, you are at a coffee shop and notice that as the temperature of the room gets colder, more people order hot beverages. From this observation, you conclude that there is a negative relationship between the temperature and hot beverage sales at this coffee shop because for the temperature to get colder it would decrease and for the hot beverages to be hot, its temperature must be increased.

Zack picked 18 carrots from his garden and divided them equally into 2 bunches to give to his neighbors. How many carrots are in each bunch?

Answers

Answer:

9

Step-by-step explanation:

he had 18 so he divide them by to so 18/2 9 so there 9 in each bunch

Find all the missing elements:
B
a
C = 120°
b = 5
c = 11
A
b C
A = 36.8° B = 23.2° = [?]
Round to the nearest tenth.
Enter

Answers

Answer: a= 7.6

Step-by-step explanation:

just moving the correct answer from a comment to an actual submission

Answer:

The answer for Acellus people is C=7.6

Step-by-step explanation:


I need a real answer.

Answers

What’s is the question you showed something but not the question



A roofing contractor buys 30 bundles of shingles and 4

rolls of roofing paper for $1040.

In a second purchase (at the same prices), the

contractor buys 12 bundles of shingles and 16 rolls of

roofing paper for $2000.

Create and solve a system of equations in order to

determine how much each bundle of shingles (x) and

roll of roofing paper (y) would cost

Answers

Answer:

Cost of one bundle of shingles is $20 and cost of one roll of roofing paper is $110.

Step-by-step explanation:

Let the cost of each bundle of shingles = x

And cost of the roofing paper = y

Contractor buys 30 bundles of shingles and 4 rolls of roofing paper for $1040.

30x + 4y = 1040

15x + 2y = 520 -----(1)

In a second purchase contractor buys 12 bundles of shingles and 16 rolls of roofing paper for $2000

12x + 16y = 2000

3x + 4y = 500 --- (2)

Equation (1) multiplied by 2 then subtracted from equation (2)

(3x + 4y) - 2(15x + 2y) = 500 - 1040

(3x - 30x) + (4y - 4y) = -540

-27x = -540

x = 20

From equation (1)

15(20) + 2y = 520

300 + 2y = 520

2y = 220

y = 110

Therefore, cost of one bundle of shingles is $20 and cost of one roll of roofing paper is $110.

PLEASE HELP ME!!! WILL MARK BRAINLIEST!!!

Answers

Answer:

1. 32 and 64

2. 24 and 17

3. 43 and 48

4. 25 and 15

Step-by-step explanation:

Answer:

1.2,4,8,16,32,64

2. 52,45,38,31,24,17

3.23,28,33,38,43,48

4. 65,55,45,35,25,15

Step-by-step explanation:

hope this helped :)

whats 402 divided by 8 PLEASE HELP

Answers

Answer: 50.25

Step-by-step explanation:

Answer: 50.25

Step-by-step explanation: /

(If you answer this right give me your cash app and I will pay you 5 dollars) Find the surface area of the pyramid.
12 yd
17.3 yd
20 yd
The surface area is
square yards.

Answers

Hopefully this help you with your math problem


Your boss has given you two options for salary increase. Your current salary is $45,000 per year.
Option 1: A raise of $2000 per year (linear growth).
Option 2: A yearly 4% raise (exponential growth).
a) Write an explicit equation for both options.
b) Fill in the table below,

Answers

Answer:

Step-by-step explanation:

There is no table but I will do the equations

Option 1

45000+2000t

let "t" represent the number of years

Option 2

45000*1.04t

let "t" represent the number of years

T
x
What is the area of a kite with diagonals that are 9
inches and 12 inches long?
108 in 2
O 54 in2
108 in2
60 in?
Please help me solve this

Answers

Answer:

108in^2

Step-by-step explanation:

Because the rule says that you should multiply them by each other

Solve for xx. Round to the nearest tenth if necessary.

Answers

Answer:

x = 37.5

Step-by-step explanation:

By Basic Proportionality Theorem:

[tex] \frac{x}{20} = \frac{46 - 16}{16} \\ \\ \frac{x}{20} = \frac{30}{16} \\ \\ x = \frac{20 \times 30}{16} \\ \\ x = \frac{600}{16} \\ \\ x = 37.5[/tex]

Answer:

x=37.5

Step-by-step explanation:

16/20=30/x

cross multiply

16x=600

x=37.5

4/7 of 29= (estimate each product)

Answers

Answer:

16.6 for nearest tenths

16.57 for nearest hundreths

Step-by-step explanation:

4/7*29/1=

29*7=203/7 to get the same denominator

203 x  4  = 812    mulptiply to get the fraction

 7    x   7 =  49

812/49=16.5714285714

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