Your teacher is giving a test that is made up of 3 point questions and5 point questions the test is worth 100 points and has 28 questions how many 3 points questions are there ?

Answers

Answer 1

Answer:

I am thinking 8 amigo, i could be wrong, so please look it up, or try to think about how to do it

Step-by-step explanation:

I hope you have a blessed day!


Related Questions

the question is in the picture ​

Answers

9514 1404 393

Answer:

b = 2.8253A = 45.2°C = 107.4°

Step-by-step explanation:

The given sides form the given angle, so the Law of Cosines can be used to find the third side.

  b = √(a² +c² -2ac·cos(B)) ≈ √7.982544072 ≈ 2.8253

The measure of angle A can be found from the Law of Sines.

  A = arcsin(a/b·sin(B)) ≈ arcsin(0.71017) ≈ 45.2°

Angle C can be calculated from the other two angles.

  C = 180° -27.4° -45.2° = 107.4°

does 7/10 x 80 represent 70% of 80

Answers

Answer:

yes

Step-by-step explanation:

I say yes I did the math for it

Rosaria filled some cups with different amounts of water, as shown below.Red cup: 0.046 liters
Blue cup: 0.05 liters
Green cup: 0.20 liters
Yellow cup: 0.6 liters witch one

Answers

Answer:

Green cup: 0.20 liters

Step-by-step explanation:

if two cards are chosen from a pack of 52 play cards at a time with replacement , what is the probability of getting one heart?​

Answers

28%. Boom. :) this is the chance of getting one red heart

First to answer get brainliest.

If the equation given to you as a reference is, p = x - 3 + (14*29), and x is 7, then what is p? I made it fairly easy so don't disappoint me.

Answers

Answer:

see explanation

Step-by-step explanation:

p = x - 3 + (14*29)

substitute 7 for x

p=7-3+(14*29)

p=410

Write an expression using an expoent that is equivalent to 9x9x9x9x9x9x9.

Answers

Answer:

try nine to the seventh power

Step-by-step explanation:

tell me if it works

Need help!!! Quick !!!

Answers

Answer:

(2, 24) (6, 72) (9, 108)

Step-by-step explanation:

For this one, we know that 2 chairs use 24 screws, which must mean that for each chair, 12 screws are needed, so we can just multiply 12 by the number of chairs being built (ex. 6) to find out how many screws are needed in total. I hope this helps :)

For the function f(x) = x2
Find f(5) =

Find f(-5)

Answers

Answer:

f(5)=(5)²=25

f(-5)=(-5)²=25

NB. Some teachers don't want 2 equals on one line, if it's your case please don't write the 2 equals on the same line

6(s+t)=(6•s)+(6•t)
What property is shown above?

Answers

Distributive property is shown.

Hope this helps! :)

What is the range of the function f(x)=−3^x − 4?

(−3,∞)

(−4,∞)

(−∞,−3)

(−∞,−4)

If you culd please explain thanks

Answers

Answer:

(-oo, -4)

Step-by-step explanation:

The y-intercept is -4 and the function is negative. The y value continues infinitely downward and never rises past -4.

0.5 to the second power x (20-2 to the third power x 3)x(2/5x25)

Answers

Answer:

489

Step-by-step explanation:

Find the absolute value

-5/6|

Answers

Answer:

5/6 OR 0.83 (with the three repeating)

Hope that helps!

Step-by-step explanation:

A chemist made six independent measurements of the sublimation point of carbon dioxide (the temperature at which it changes to dry ice). She obtained a sample mean of 196.64 K with a standard deviation of 0.66 K.
1. Use the Student’s t distribution to find a 95% confidence interval for the sublimation point of carbon dioxide.
2. Use the Student's t distribution to find a 98% confidence interval for the sublimation point of carbon dioxide.
3. If the six measurements had been 196.35, 196.32, 196.4 198.02, 196.36, 196.39, would the confidence intervals above be valid? Explain.

Answers

Answer:

(195.733, 197.547)

Step-by-step explanation:

Given that:

Mean, m = 196.64 K

Standard deviation, s = 0.66 K

Sample size, n = 6

Confidence interval :

Mean ± margin of error

Margin of error =Tcritical * s/sqrt(n)

Tcritical at α = 98% ; df = 6 - 1 = 5

Tcritical = 3.3648

Margin of Error = 3.3648 * 0.66/sqrt(6) = 0.9066

Confidence interval = 196.64 ± 0.9066

Lower boundary = 196.64 - 0.9066 = 195.733

Upper boundary = 196.64 + 0.9066 = 197.547

(195.733, 197.547)

Given the measurement :

X = 196.35, 196.32, 196.4 198.02, 196.36, 196.39

Mean = ΣX / n = 1179.84 / 6 = 196.64

Yes, confidence interval will be valid as theean obtained is within the calculated interval

A sports trainer has monthly costs of $65.94 for phone service and $42.23 for his website and advertising. In addition, he pays a $30 fee to the gym for each session in which he trains a client. Write a cost function to represent the C(x) for x training sessions. C(x) =

Answers

Answer:

C(x) = 138.17

Step-by-step explanation:

Hello I need help please anyone help me ??????!!!!!!

Answers

Answer:

(x-4)^2

(x-4)(x-4)

x^2-4x-4x+16

X^2-8+16

It takes half of a yard of ribbon to make a bow, how many bows can be made with 7 yards of ribbon

Answers

Answer:

14

Step-by-step explanation:

factorise fully 24squared + 18x

Answers

Answer:

18(32+ x)

Step-by-step explanation:

24 square + 18x 576 + 18 x18(32+ x)



A 12-sided die is rolled. The set of equally likely outcomes is {1,2,3,4,5,6,7,8,9,10,11,12}. Find the probability of rolling a number less than 13.
The probability of rolling a number less than 13 is
(Type an integer or a simplified fraction)

Answers

The probability of rolling a number less than 13 is 1 in 12, 1/12, or %8.3 chance

Answer:

Step-by-step explanation:

A baseball team has 9 players. how many different batting orders are there?
a. 6,561
c. 244,643
b. 362,880
d. 64,446
Please select the best answer from the choices provided
A
B
С
D

Answers

9514 1404 393

Answer:

  b. 362,880

Step-by-step explanation:

There are 9 ways to choose the first batter, 8 ways to choose the second, and so on. There are a total of 9·8·7·6·...·2·1 = 9! = 362,880 ways to arrange the batting order.

Find the exact perimeter of the circle with a radius of 5 and round your answer to 2 decimal places

Answers

Answer:

31.42

Step-by-step explanation:

The width of a rectangle is 5 centimeters less than the length . The area of the rectangle is 36 centimeters.find the length?

Answers

Answer:

9 centimeters

Step-by-step explanation:

Let the width be represented by l - 5, where l is the length.

Use the area formula, A = lw, and plug in l - 5 as w, and 36 as the area. Then, simplify and factor

A = lw

36 = l(l - 5)

36 = l² - 5l

0 = l² - 5l - 36

Factor:

(l - 9)(l + 4)

Set equal to zero and solve for both solutions:

(l - 9)(l + 4) = 0

l - 9 = 0

l = 9

l + 4 = 0

l = -4

The length cannot be negative, so the answer has to be 9.

The length is 9 centimeters

The width of a rectangle is 5 centimeters less than the length . The area of the rectangle is 36 centimeters.find the length?


hope this helps

In a certain Algebra 2 class of 21 students, 6 of them play basketball and 10 of them
play baseball. There are 7 students who play neither sport. What is the probability
that a student chosen randomly from the class plays both basketball and baseball?

Answers

Answer:

2

Step-by-step explanation:

Answer:

2/21

Step-by-step explanation:

There are two kids who play baseball and basketball, and 21 students in total. Making the answer 2/21

Katherine is very interested in cryogenics (the science of very low temperatures).
With the help of her science teacher she is doing an experiment on the affect of low
temperatures on bacteria. She cools one sample of bacteria to a temperature of
-51°C and another.to -76°C. What was the temperature difference in the two
experiments?

Answers

Your answer is 25°C

Since the numbers are both negative, you can just find the difference between those two numbers.

What is the standard form of the equation y = -x - 2?
A. X + y = -2
B. x = -y - 2
C. y + x = 2
D. y - x= -2

Answers

Answer:

bgyr5y53bygtr3

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

go backwords y+x = 2

y=1

x=1

In a class of 30 students 16 have a cat and 15 have a dog there are 11 students who have a cat and a dog what is the probability that a student has a dog given they do not have a cat?

Answers

so we know 11 have cats and dogs and 15 have dogs so do 15-11=4 and divide that by all the students which is 30 and get 13.3%

The probability that a student has a dog given they do not have a cat is 0.1333.

What is probability?

Probability deals with the occurrence of a random event. The chance that a given event will occur. It is the measure of the likelihood of an event to occur.The value is expressed from zero to one.

For the given situation,

Total number of students = 30

[tex]n(s)=30[/tex]

Number of students have cat = 16

Number of students have dog = 15

Number of students have a cat and a dog = 11

The event is the probability that a student has a dog given they do not have a cat,

[tex]n(e)=15-11[/tex]

⇒ [tex]4[/tex]

Thus the probability that a student has a dog given they do not have a cat is

⇒ [tex]P(e)=\frac{n(e)}{n(s)}[/tex]

⇒ [tex]P(e)=\frac{4}{30}[/tex]

⇒ [tex]P(e)=0.1333[/tex]

Hence we can conclude that the probability that a student has a dog given they do not have a cat is 0.1333.

Learn more about probability here

https://brainly.com/question/16484393

#SPJ2

Could someone help??

Simplify. −64−−−−√
Choices
−8
8i
8
−8i

Answers

Answer:

where did you intend to write the radical?

find the selling price if the cost price is rupees 600 and profit is 13%​

Answers

Answer:

=2277 Ans.

Step-by-step explanation:

Find the selling price

(a) Cost =600

Profit=13%

Selling price =Cost + profit

=600+

100

600×13

=600+78

=678 Ans.

(b) Cost=2475, loss=8%

Selling price = Cost+ profit/loss

=2475+(−

100

2475×3

)

=2475−198

=2277 Ans.

2 2/5 x 3/4
plz help me! and plz show your work.

Answers

Answer:1.8

Step-by-step explanation:

can anyone help me in picture ???????​

Answers

Answer:

c

Step-by-step explanation:

plz help asap!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

a 12/20 = 0.6

b 21/35 = 0.6

c 28.8/48 = 0.6

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