Section 25 Exercise's
Practice and Application Exercises
In Exercises 1–54, express each probability as a fraction reduced to
lowest terms.
In Exercises 1-10, a die is rolled. The set of equally likely outcomes
is (1,2,3,4,5,6). Find the probability of rolling
1. a 4.
2. a 5.
3. an odd number.
4. a number greater than 3.
5. a number less than 3.
6. a number greater than 4.
7. a number less than 20.
8. a number less than 8.
9. a number greater than 20.
10. a number greater than 8.
Nick was thinking of a number. Nick adds 11, then divides by 6 to get an answer of -7. What was the original number?
Answer:
-53/6
Step-by-step explanation:
x + 11 / 6 = -7
Subtract 11/6 from both sides to isolate x.
x = -53/6
need help pleaseee i have a test on friday
Answer:
x = 8
Step-by-step explanation:
Using the sine or cosine ratio in the right triangle and the exact value
sin30° = [tex]\frac{1}{2}[/tex] , then
sin30° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{4}{x}[/tex] = [tex]\frac{1}{2}[/tex] ( cross- multiply )
x = 8
Find tan A and tan B.
Step-by-step explanation:
[tex] \tan(a) = \frac{26}{10} = 2.6 \\ \tan(b) = \frac{10}{26} [/tex]
Find the missing terms in the arithmetic sequence 1, __, __, __, 29,...
9514 1404 393
Answer:
8, 15, 22
Step-by-step explanation:
The sequence has ...
a1 = 1
a5 = 29
__
The generic formula for an arithmetic sequence is ...
an = a1 +d(n -1)
Filling in the known information, we can find d:
29 = 1 + d(5 -1)
28/4 = d = 7
The terms of the sequence have a common difference of 7, so each is 7 more than the one before. The first five terms are ...
1, 8, 15, 22, 29
The missing terms are 8, 15, 22.
their circumference of a circle is 44 ft what is the diameter of the circle
Answer: Nothing further can be done with this topic. Please check the expression entered or try another topic.
44
feet
Step-by-step explanation: you have to multiplying
What is constant polynomial -x^5+2x^3-17!!!!!!!!!!!!!
Quick plzzzzz
Answer:
− 1 ( 5 − 2 3 + 1 7)
Step-by-step explanation:
Ms Hogan has more than 20 students in her class.
when she divides the class into groups of 5, there are 4 students left over.
when she divides the class into groups of 4, there is 1 student left over.
what is the least number of students that could be in ms Hogan's class?
i need that asap pleasee
Answer:
The answer is most likely 29
Step-by-step explanation:
you can have 5 groups of 5 with 4 left over, and 7 groups of 4 with one left over.
PLEASE HELP! - MULTIPLE CHOICE - YOU WILL GET 10 POINTS - MATH
Answer:
56°
Step-by-step explanation:
Answer:
56
Step-by-step explanation:
36 + x = 90
x = 90 - 34
x = 56
Point A is located at -7 on a number line, and point B is located at 3 on the number line. Point C is the same distance away from point A as point B is from point A, but in the opposite direction. Which is the location of point C on the number line?
Answer:
C is at -17 on the number line
Step-by-step explanation:
point A is at -7, point B is at 3, that makes them 10 units away from each other, Point C is the same distance away from A just like B is but in the opposite direction. -7 -10=-17, therefor C is at -17
I thought I lost my account
Anyways, who made pythagorean theorem
Answer: Nevertheless, the theorem came to be credited to Pythagoras. It is also proposition number 47 from Book I of Euclid's Elements. According to the Syrian historian Iamblichus (c. 250–330 ce), Pythagoras was introduced to mathematics by Thales of Miletus and his pupil Anaximander.
Step-by-step explanation:
Please help with this will mark you brainliest
Answer:
choose to places and with this formula, you can find it easily;
(y_2 - y_1)/(x_2 - x_1)
first place can be (1, 3) and the second can be (2,5):
5-3/2-1 =2
and it would be 2
The volume of a child's model plane
is 1200cm cube.
The volume of the full size plane is 4050 m cube.
Find the scale of the model in the fom 1:n.
Answer:
Is 10B and you get like 1000
Answer:
you get like 1000
Answer this question to get marked as barinliest!!!!
Answer:
the third one
Step-by-step explanation:
Answer: C
Step-by-step explanation:
Which number is the smallest?
5.48 x 10-8
5.48 x 10 -8
3.24 x 10-5
3.24 x 10 -5
2.85 x 10-6
2.85 x 10 -6
1.28 x 10-4
Answer:
option D ..............
Answer:
[tex]5.48 \times {10}^{ - 8} \\ [/tex]
The number with a greater exponent is the smallest.
i'll give the crown thing if I can
Answer:
i) p = 4
ii) p = 8
iii) p = 12
Step-by-step explanation:
First of all, we have the general relation as follows;
c = 2.79p
i) 2.79p = 11.16
p = 11.16/2.79
p = 4
ii) 2.79p = 22.32
p = 22.32/2.79
p = 8
iii) 2.79p = 33.48
p = 33.48/2.79
p = 12
what is the value of x
Answer:
x<-19
Step-by-step explanation:
hope that helps
What is the surface area of the cylinder with height 8 ft and radius 7 ft? Round your
answer to the nearest thousandth.
Helppp
Answer:
660
Step-by-step explanation:
Here is the equation to get this answer-
A=2πrh+2πr2=2·π·7·8+2·π·72≈659.73446
then you round the 659.73446 to get 660
HELP FAST ANSWER IF YOU ARE 100% sure. Any decimal answers are wrong so if the answer you got is a decimal don't put as answer or you will be reported. Thank y'all!
Answer: Picture with answer below:
Step-by-step explanation:
Answer: 891ft
Step-by-step explanation:
PLEASE HELP WILL GIVE BRAINLIEST!!!!!
Answer is option B.
[tex] \frac{ - 1}{ 25 } [/tex]
Explanation:
5 to the power -2 can be written as
[tex] {( {5}^{2})}^{ - 1} [/tex]
which will be
[tex] {25}^{ - 1} [/tex]
which will be
[tex] \frac{ - 1}{ 25 } [/tex]
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!
Write the decimal as a fraction.
The model y=1.8x−76.9 y=1.8x−76.9 represents the relationship between the temperature (°F) and the number of ice cream cones sold. Using the model, approximate the number of ice cream cones sold when it is 85°F. Round your answer to the nearest whole number.
Answer:
76 ice cream cones
Step-by-step explanation:
Given the model : y=1.8x−76.9 ;
Which shows the relationship between temperature and number of ice cream cones sold ;
Using the model, the predicted number of ice cream cones sold when temperature is 85°F
Hence, x = 85
Putting x = 85 in the model and solve for y
y = 1.8(85) −76.9
y = 153 - 76.9
y = 76.1
Hence, the number of ice cream cones sold is 76
What is the slope-intercept equation for the following line?
Answer:
y = 2x + 7
Step-by-step explanation:
ALgebra is my best subject! Have a good day!
ANSWER NOW PLEASE: Tom is having his car repaired. The cost of the parts is $260
and 4 hours of work are required. Tom needs to keep the
entire cost of the repair under $400. Which inequality
expresses the relationship between hourly cost (x), parts,
and the $400 limit?
Answer:
260 + 4x < 400
Step-by-step explanation:
To make our inequality, let's list out the separate costs we have, all of which combined should be less than 400.
First, we have the cost for the parts, which is $260. The other cost we have is the hourly rate for the work. The repair will take a certain amount of money for every hour worked. The rate must be low enough that it doesn't exceed $400 when combined with the $260 from the parts.
To construct our inequality, we can begin with the estalished $260.
Then, add to this the hourly rate, (x) times the number of hours worked, 4.
So we have-
260 + 4x
The total of this cost must be less than $400 dollars, so we will use the less than ( < ) sign in front of the 400.
260 + 4x < 400
The answer is 260 + 4x < 400. I hope this was helpful :] Good luck ^^
40 POINTS!!!!!! Find the area of the complex figure.
Answer:
2361456
Step-by-step explanation:
if this is not the answer im not smart please
im only doing answer for good intentions no bad intentions.
Simplify each expression
Answer:
Simpify each expression :
1) B
2)B
3)C
4)A
5)A
6)C
Find each product, and simplify the expression :
7)B
8)A
9)A
Step-by-step explanation:
I will send the explanation in a little time.
Olivia spent $20.00 on pencils and pens. Each pencil cost $2.00, and each pen cost $2.50. Which equation represents the number of pencils, x, and the number of pens, y, Olivia could have bought?
Answer: $2.00x + $2.50y = $20.00
Step-by-step explanation:
What is the length of the triangle of “b” and the answers helppp plz? ??
Name: ___________________________________________ Class: ___________
Real World Situation
Bryce spent $5.26 on some apples priced at $0.64 each and some pears priced at
$0.45 each. At another store he could have bought the same number of apples at
$0.32 each and the same number of pears at $0.39 each, for a total cost of $3.62. How
many apples and how many pears did Bryce buy?
Write equations in Standard Form.
Equation 1 (Store 1) Equation 2 (Store 2)
___________________________________ ____________________________________
Solve both equations in Standard Form. Show all work.
HINT: Replace the given values for x in the equation and solve for y
Equation 1
x (x,y)
0
1
2
3
4
5
6
Equation 2
x (x,y)
0
1
2
3
4
5
6
Solution:- ( , )
Identify the solution and state what it means in context of the problem.
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Use Substitution Method to solve the system of Equations. Show all work and state
the solution.
Solution: ( , )
Explain in your own words your process of solving the System of Equations using
Substitution Method.
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Use Elimination Method to solve the system of Equations. Show all work and state the
solution.
Solution: ( , )
Explain in your own words your process of solving the System of Equations using
Elimination Method.
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Use Graphing Method to solve the system of Equations. Show all work and state the
solution.
Solution: ( , )
Explain in your own words your process of solving the System of Equations using
Graphing Method.
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Reflection:
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Name_____________________________________ Class:______________ 2020-2021 Score:
Circumstances of Performance Students comments: I have learned that
___independent work __________________________________________________________________
___in class __________________________________________________________________
___as Homework __________________________________________________________________
___with a partner __________________________________________________________________
___with teacher feedback
___with an opportunity for revision Teacher comments/Next Steps:
__________________________________________________________________
Peer Reflection:
___________________________________________________________________
___________________________________________________ ___________________________________________________________________
___________________________________________________ ___________________________________________________________________
___________________________________________________ ___________________________________________________________________
Let the number of apples be x and that of pears be y, then:
0.64x + 0.45y = 5.26 . . . (1)
0.32x + 0.39y = 3.62 . . . (2)
(2) x 2 => 0.64x + 0.78y = 7.24 . . . (3)
(1) - (3) => -0.33y = -1.98
y = -1.98 / -0.33 = 6
From (2), 0.32x + 0.39(6) = 3.62
0.32x = 3.62 - 2.34 = 1.28
x = 1.28 / 0.32 = 4
In a video store, a DVD was $13.50. It was now marked, "10% off". What was the sale price of the DVD?
Answer:
$12.15
Step-by-step explanation:
13.50 x 0.9 = 12.15
Answer:
$12.15
Step-by-step explanation:
10% of 13.50 is 1.35. Subtract 1.35 from 13.50 to get 12.15