An instructor gives his class a set of 18 problems with the information that the next quiz will consist of a random selection of 9 of them. If a student has figured out how to do 13 of the problems, what is the probability the he or she will answer correctly
all 9 questions? =.0147
atleast 8 questions ?
Answer:
The probability the he or she will answer correctly is 1.5%
Step-by-step explanation:
Translation is a congruency transformation. True or false
Answer:
True
Step-by-step explanation:
In a translation, the figures face the same direction and are congruent.
are fractions with the same denominator?
Answer:
To solve fractions, you MUST HAVE THE SAME DENOMINATORS WHEN DEALING WITH ADDITION AND SUBTRACTION.
Step-by-step explanation:
For example, 2/3 + 3/6
The denominators in this case have a common denominator which is 6.
All you have to do is multiply the 2/3 by 2 in the numerator and the denominator. Once you do, you'll get 4/6 which you could then add to 3/6 to get 7/6 which would equal 1 1/6 or 7/6 either is fine.
Hope this helps! :)
Answer:
To solve fractions, you MUST HAVE THE SAME DENOMINATORS WHEN DEALING WITH ADDITION AND SUBTRACTION.
Step-by-step explanation:
I"LL MARK YOU BRANLIEST IF YOU ANSWER CORRECT! Ayana's favorite brownie recipe calls for 1/2 of a cup of flour for every 1/3 of a cup of cocoa powder. For a bake sale, she plans to make a larger batch with 1 cup of cocoa powder. How much flour should she use?
Answer:
either a full cup or 1 1/2
What is the minimum number of x-intercepts that a polynomial of degree 10 can have?
HELP NEEDED ASAP MATHS PLEASE!!!
A bacteria population increases exponentially at a rate of r% each day. After
32 days, the population has increased by 309%. Find the value of r.
Answer:
r=4.5% daily
Step-by-step explanation:
Exponential Growth
The natural growth of some magnitudes can be modeled by the equation:
[tex]P=P_o(1+r)^t[/tex]
Where P is the actual amount of the magnitude, Po is its initial amount, r is the growth rate and t is the time.
We know after t=32 days, the population has increased by 309%. Being the original population P the 100%, then the population reached 309+100= 409%.
Substitute the given values into the model function:
[tex]409\%P_o=100\%P_o(1+r)^{32}[/tex]
Simplifying:
[tex]4.09=(1+r)^{32}[/tex]
We need to solve for r. Taking the 32nd root:
[tex]\sqrt[32]{4.09}=\sqrt[32]{(1+r)^{32}}[/tex]
Simplifying:
[tex]1+r=\sqrt[32]{4.09}=1.045[/tex]
Solving:
[tex]r=1.045-1\Rightarrow r=0.045[/tex]
r=4.5% daily
On a map, 1 inch equals 5 miles. If two cities are 7 inches apart on the map, how far are they actually apart
Answer:
35
Step-by-step explanation:
7 * 5 = 35
Need help with this one please show it step by step.
Thank you!
Answer:
which class you are plz say dude
What is the size of a terabyte?
2 and square root of 2 + square root of 8 - 4 and square root of 1 over 2
Answer:
2.828427125, 2.82 or just round it to 3 if you want
Step-by-step explanation:
All you have to do is type it into the Desmos Scientific Calculator exactly how you see it.
Work out 2 1/3 divided by 1/4
Answer:
9.3333333
Step-by-step explanation:
Answer:
[tex] \frac{9}{4} \div \frac{1}{4}
\frac{9}{4} \times \frac{4}{1}
= \frac{34}{4} \\ \\ \\ \\ = 9[/tex]
Lin divides the polynomial 2x^2 -4x+1 by 4 and gets 0.5x^2 -x + 0.25. is 0.5x^2 - x +0.25 a polynomial
Answer: yes
Step-by-step explanation:
The expression 0.50 x² - x + 0.25 is a polynomial.
It is given that Lin divides polynomial 2x² - 4x + 1 by 4 and gets 0.5x² - x + 0.25.
We have to find out that whether the expression given is a polynomial ?
What do you mean by a polynomial ?
Polynomials are algebraic expressions that consist of variables and coefficients e.g., polynomial with one variable is x² + x - 12.
As per the question ;
Lin divides polynomial 2x² - 4x + 1 by 4 and gets 0.5x² - x + 0.25
Let's check ;
(2x² - 4x + 1 ) ÷ 4
= [tex]\frac{2x^{2} }{4}[/tex] - [tex]\frac{4x}{4}[/tex] + [tex]\frac{1}{4}[/tex]
= [tex]\frac{x^{2}}{2}[/tex] - x + 0.25
or
= 0.50 x² - x + 0.25
or a form of polynomial i.e., ax² + bx + c.
Thus , the expression 0.50 x² - x + 0.25 is a polynomial.
To learn more about polynomials click here ;
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Jamie has a sprinkler than covers a circular area with diameter 16 feet. What is the area of lawn that the
sprinkler covers?
Answer:
64π or 201.0619298297
Step-by-step explanation:
Area of a circle: πr²
To find r, the radius of the circle, take the diameter (16) and halve it to get 8. You can now place 8 into the equation to get π8². Square 8 to get 64. You now now have π64, or 201.0619298297.
Types of Data
Numbers
Yes/No
Longer response
What is the campus like?Is there on-campus housing?Is financial aid available?Are engineering scholarships offered?What majors are available?How much is the tuition?How many students are enrolled?What is the average class size?What percentage of those who apply are accepted?What dining options are offered on campus?
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There is a meeting in Conference Room A.
The ratio of women to men is 3 to 4. If there
are 18 women at the meeting, how many men are there?
A) 21 men
B) 54 men
C) 24 men
D) 72 men
Answer:
I think 21 is it right ...
How do you know if a sum or product will result in a rational or irrational number?
Which expression shows how to convert 60 hours into days?
Answer: so, 60 hours = 60/24 days = 2 days 12 hrs
Step-by-step explanation:
Is 5 x n - 3 the correct algebraic expression for five times the difference of a number and three
Answer:
5(n-3)
Step-by-step explanation:
There would be parenthesis because you'd subtract three from the number first.
Divide:
−54 ÷ −9 =
pls help llllllllllllllll
Answer:
Step-by-step explanation:
When you divide two negative numbers, the negative sign cancels. So you just get an answer of 6.
Answer:
6
Step-by-step explanation:
-54 / -9
ok so first of all we can just change them to positive
54 / 9
this is what goes on in my head
the 2 digits equal 9
a number times 9 is just that number less then that number times 10
54 / 9 = 6
-54 / -9 = 6
Multiply the following binomials:
(x + 10)(x - 5)
Answer:
X^2+5x-50
Step-by-step explanation:
X^2-5x+10x-50
Answer:
X² - 5x + 10x - 50
Step-by-step explanation:
Use the FOIL method!
Jim Kosla earns $156,200 annually as a plant manager. He is married and supports 3 children. The state tax rate in his state
is 3.55% of taxable income. What amount is withheld yearly for
state income tax?
Answer:
$5545.10
Step-by-step explanation:
3.55% of $156,200 = $5545.10
[tex](x - 2) { }^{2} = 0[/tex]
How many solutions does this equation have?
pwease can i have help pwease if two answer I will give brainliest
Move the numbers to the lines to order them from least to greatest
Answer:
-3/2, 1.25, |-9/4|, 2.5, 121
Step-by-step explanation:
Convert all numbers to a decimal
-3/2 = -1.5
|-9/4| = 2.25
2.5 = 2.5
121 = 121.0
1.25 = 1.25
Now put them in order from least to greatest.
-3/2, 1.25, |-9/4|, 2.5, 121
The numbers to the lines to order from least to greatest; -3/2, 1.25, |-9/4|, 2.5, 121
How can we express numbers belonging to decimal numeral system?Suppose that the number is abcd.efg and belongs to the decimal numerical system.
Remember one thing that the place on the left of decimal point is called ones. Move one-one places to right, and divide by 10 and 10 more and more.
Convert all the numbers to a decimal
-3/2 = -1.5
|-9/4| = 2.25
2.5 = 2.5
121 = 121.0
1.25 = 1.25
Now put them in order from least to greatest, we get;
-3/2, 1.25, |-9/4|, 2.5, 121
Learn more about place value here:
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Which is greater, 9 x 10^-2 or 3 x 10^-4? How many times greater is the number you chose than the other number? Explain your reasoning.
Answer:
The solution to 9x10^-2 is 0.09 or (3/10)^2. The solution to 3x10^-4 is 0.0003 or 3/10000. Based on that, 9x10^-2 fits into 3x10^-4 three-hundred (300) times.
jamie and her 2 friends decide to buy a pizza pie and split the cost. The pizza pie cost $12.78. If Jamie has $5, how much does she have left over after they buy the pizza pie?
Answer:
she has no more money
Step-by-step explanation:
Answer:
7.78 if u subtract
but no more money i guess
Every morning for the past 12 days Beth used 2/3 of a cup of milk on her cereal to determine how much milk she used in total she set up the equation 2/3x12
Answer:
8
Step-by-step explanation:
2/3*12=24/3=8
easy way:
2/3*12/1=24/3=8
A team won 8 of 24 games it played in one season what percentage of games did it win
Answer:
it would have won 1/3 or .333333
Step-by-step explanation:
8/24 simplifies to 1/3, which equals .33333
Answer:
I'm pretty sure it's 33%
Step-by-step explanation:
8 is 1/3 of 24 and 1/3 as a fraction is 33%
I need help on this ASAPPPPPPP