Answer:
2.11
Step-by-step explanation:
hope this helps :)
Answer:
It would be 2.1100
Step-by-step explanation:
Help. This is graded lol. Also due in 1 hour soooooo pls go quick. Also explain, since I actually wanna know how to do this.
40 POINTS ON THE LINE (idk if that's a lot)
Answer:
[tex]m\angle1 =47^o[/tex]
[tex]m\angle2 =119^o[/tex]
[tex]m\angle ABC =97^o[/tex]
[tex]m \angle FED = 62^o[/tex]
Step-by-step explanation:
angle 1 and the angle 133 degrees are supplementary angles, then added should give 180 degrees.
angle1 + 133 = 180 then angle1 = 180-133 = 47 degrees
[tex]m\angle1 = 180^o - 133^o=47^o[/tex]
Angle 2 is of the same measure as the angle marked as 119 degrees since they are what is called "corresponding angles between parallel lines."
Angle ABC plus angle that measures 83 degrees should add to 180 since their sum gives a straight line, then:
ABC + 83 = 180
ABC = 180 - 83 = 97 degrees
Last image:
The two angles with algebraic denomination should be equal because they are alternate internal angles, Then this equality can be written as:
8 x - 34 = 5 x + 2
solve for x by subtracting 5 x from both sides:
3 x - 34 = 2
add 34 to both sides:
3 x = 2 + 34
3 x = 36
x = 36/3
x = 12
and now knowing x we can find angle DEF
DEF = 5 x + 2 = 5 (12) + 2 = 60 + 2 = 62 degrees
Three high school participated in a study to evaluate the effectiveness of a new computer-based mathematics curriculum. Four 24-student sections of freshman algebra were available for the study. The two types of instruction (standard curriculum, computer-based curriculum) were randomly assigned to the four sections in each of the three schools. At the end of the term, a standard mathematics achievement test was given to each of the 24 students in each section.
a. Is this study experimental, observational, or mixed experimental and observational? Why?
b. Identify important factors, factor levels, and/or factor-level combinations.
c. Classify these factors as within- or between-subjects
d. what’s the dependent measures?
e. What is the basic experiment unit of study?
Answer:
A) experimental
B) The important factors are : Type of instruction, scores and High schools,
The factor levels are :
Level -1 which comprises of 3 highschool,
Level -2 which comprises of highschool and the highschool has 4 sections and each section has 24 students
Factor level combinations:
Level 1 : computer and standard based combination
C) Within the subject : 24 students
Between subject : High school
D) score of the test
E) student
Step-by-step explanation:
A) The study is experimental because of the random assignment of two different types of instruction to the students which will control/affect the technique of teaching without just observing the performance of the students from the side
B) The important factors are : Type of instruction, scores and High schools,
The factor levels are :
Level -1 which comprises of 3 highschool,
Level -2 which comprises of highschool and the highschool has 4 sections and each section has 24 students
Factor level combinations:
Level 1 : computer and standard based combination
C) Within the subject : 24 students
Between subject : High school
D) The dependent measure is the score of the test
E) The basic experiment unit of the study is : student
Check the statements that are true.
A. An arithmetic sequence is a linear function whose domain is restricted to the set of non-negative integers.
B. A geometric sequence is a linear function whose domain is restricted to the set of non-negative integers.
C. An arithmetic sequence is an exponential function whose domain is restricted to the set of non-negative integers.
D. A geometric sequence is an exponential function whose domain is restricted to the set of non-negative integers.
Answer:
A and D.
Step-by-step explanation:
A sequence is a set of the objects or numbers in a specific order. It is a function whose domain is a set of natural numbers or non-negative integers i.e. {1, 2, 3,..}
(A)
"An arithmetic sequence is a linear function whose domain is restricted to the set of non-negative integers."
The general form an arithmetic sequence is:
[tex]a_{n}=a_{1}+(n-1)d[/tex]
The function is linear. The sequence consists of either numbers that are increasing or decreasing based on the value of d, the common difference.
So, the statement provided is True.
(D)
"A geometric sequence is an exponential function whose domain is restricted to the set of non-negative integers."
The general form an geometric sequence is:
[tex]a_{n}=a_{1}\cdot r^{n-1}[/tex]
The function is exponential. The sequence consists of either numbers that are exponentially increasing or decreasing by the factor r, the common ratio.
So, the statement provided is True.
The formula for the area of a triangle is A = Abh, but...
Answer:
But....
Area of triangle = 1/2 × base / height.
FOLLOW ME
Answer:
area = base * height divided by 2
Step-by-step explanation:
A triangle is basically half a square, so you divide it by 2 after you multiply the base and height
an object is thrown upward at a speed of 74 feet per second by a machine from a height of 18 feet off the ground. The height h of the object after t seconds can be found using the equation h=-16t^2+74t+18
Answer:
First part:
Set h(t) = 73 and solve for t.
-16t2 + 64t + 16 = 73
-16t2 + 64t - 57 = 0
Solve this quadratic equation for t. You should get 2 positive solutions. The lower value is the time to reach 73 on the way up, and the higher value is the time to reach 73 again, on the way down.
Second part:
Set h(t) = 0 and solve the resulting quadratic equation for t. You should get a negative solution (which you can discard), and a positive solution. The latter is your answer.
Step-by-step explanation:
Find an equivalent ratio in simplest terms 44:80
Answer:
11:20
Step-by-step explanation:
Divided by 4
Drove 260 km using 12 liters of gas at this rate how many liters of gas would he need to drive 286km
Answer:
We calculate the amount of gas used per km and multiply it by 286
Step-by-step explanation:
If we drive for 260km and use 12 litres of gas that means that we use
[tex]\frac{12}{260}[/tex] litres per km.
Now we multiply it by 286:
[tex]\frac{12}{260} *286 = \frac{858}{65} = 13.2[/tex]
So, the answer is 13.2 litres.
help with this immediatey please
Answer:
100 degrees
Step-by-step explanation:
60+40 makes the whole angle ABC
ANSWER
B.
STEP BY STEP
estimate for 389 × 4=
Answer:
1556
Step-by-step explanation:
389 times 4 is 1556
Answer:
Step-by-step explanation:
First let’s do normal multiplication
389*4=1556
Now let’s estimate
2000(whenever you estimate a number, you just round it up to the highest place in the number)
A pice of lumber 2 1/4 feet long is to be cut into 3 equal pieces. How long will each piece be? Give the measurements in feet and inches.
Answer: The required length of each piece of wood is or 9 inches.
Step-by-step explanation: Given that a piece of lumber is feet long is to be cut into 3 equal pieces.
We are to find the length of each piece of wood in feet and in inches.
We will be using the UNITARY method to solve the given problem.
The length of 3 pieces of wood is equal to
Therefore, the length of each piece of wood will be
Thus, the required length of each piece of wood is or 9 inches.
PLEASE HELP FOR 25 points and maybe a Brainliest . The cost y (in dollars) of getting into a fair and riding x rides is
C(x) = 1.5x +5. You only have a total of $20 to spend at the fair.
a.graph the function and identify its domain and range.
b. Interpret the slope and the intercepts of the graph.
Thank you if u helped
A restaurant will select 1 card from a bowl to win a free lunch. Jo puts 5 cards in the bowl. The bowl has 100 cards. What are the odds of jo winning a free lunch?
A)1/5
B)1/10
C)1/20
D) 1/500
Answer:
1/20
Step-by-step explanation:
If f(x)=x^2 and g(x) =3x-1 find [g • f](x)
Answer:
3x²-1
Step-by-step explanation:
f(x) = x²
g(x) = 3x-1
[g·f](x)
g(f(x))
3(x²)-1
Hello please help will give brainliest!
Answer:
the answer is A hope it helps: )
Answer:
A
Step-by-step explanation:
I had this question on a practice test, it's correct.
If P(E)=0,40,P(E or F)=0.55, and P/E and F)=0.20, find P(F).
P(F)-(Simplify your answer.)
Answer:
screeeeeeeeeeredc vbggrewdsc
Step-by-step explanation:cdscx de2wqsax
wewdsnswercwdsx
==================================
Work Shown:
P(E or F) = P(E) + P(F) - P(E and F)
0.55 = 0.40 + P(F) - 0.20
0.55 = P(F) + 0.20
P(F) + 0.20 = 0.55
P(F) = 0.55 - 0.20
P(F) = 0.35
---------
note: Sometimes you may see the formula as
P(E and F) = P(E) + P(F) - P(E or F)
but it's an equivalent form to the first equation above.
Select all choices that describe rectangles with same area that are NOT congruent.
Answer:
Where are the options? This is kinda broad..
Answer:
Step-by-step explanation:
a diver descended 84 feet in 6 minutes. What was the divers change in depth per minute? Write and expression with a solution
Answer:
14 depth per minute
Step-by-step explanation:
84/6 = 14
what are the congruent angles and sides???
Answer:
the helping hand got it
what is the most frequently occurring value in a set
Answer:
mode
Step-by-step explanation:
in statistics, the mode is the most commonly observed value in a set.
Answer:
Mode
Step-by-step explanation:
Mode is the value that is shown most frequently in a set.
what is the measure of CAB?
∠CAB and the angle above it whose measure is 84° are vertically opposite angles , which means their measure will be equal .
∴ The measure of angle CAB = 84°By the definition of vertically opposite angle, Measure of an angle CAB is, 84°.
What are Parallel lines?Parallel lines are those lines that are equidistance from each other and never intersect each other.
We know that;
The vertically opposite angles are equal to each other.
Here, ∠CAB and the angle above it whose measure is 84° are vertically opposite angles.
Hence, Measure of ∠CAB = 84°
Learn more about the parallel line visit:
brainly.com/question/30195834
#SPJ2
A rectangle has side lengths 6 cm and 9 cm. What would the side lengths of the image be after a dilation of 2.25? Explain your reasoning.
Answer:
The side lengths of the image after the dilation = 13.5 cm and 20.25cm
Step-by-step explanation:
A rectangle has side lengths 6 cm and 9 cm. What would the side lengths of the image be after a dilation of 2.25? Explain your reasoning.
Dilation can also be referred to as scale factor
6cm × 2.25 = 13.5 cm
9 cm × 2.25 = 20.25 cm
The side lengths of the image after the dilation = 13.5 cm and 20.25cm
Solve c = 1/2ab² for b.
Answer:
b²=√(2c/a)
Step-by-step explanation:
c=1/2ab²
1/2ab²=c
ab²=2c
b²=2c/a
b²=√(2c/a)
What is 2x^2-x-1 in factored form?
Answer:
2x^2-x-1 = (2x+1)(x-1)
Answer:
(2x+1)(x−1)
Step-by-step explanation:
I hope it is right
convert 565900 seconds into days
Answer:
1 day = 86400 seconds
565900 divided by 86400 =
Step-by-step explanation:
a little more than 6 days
plz mark brainliest
what is the values if 5 in 52105
Answer:
5 is equal to 50000 and 5 is equal to 5
Step-by-step explanation:
Which point best represents v10 ?
That would be Q my dude.
Hope this helps
An object is moving at a speed of 4 miles every 9 hours. Express this speed in meters per day. Round your answer to the nearest whole number.
Answer:
17166 m/days
Step-by-step explanation:
1 mile = 1609.34 m
4 miles = 1609.34×4
= 6437.38m
1 hour = 0.0416667
9 hours = 9 × 0.0416667
= 0.375 days
Speed= (6437.38/0.375) m/days
= 17166.34667 m/days
= 17166 m/ days ( nearest whole number)
A number, n, is greater than -4 and less than or equal to 6.
Answer:
-3-,2,-1,0,1,2,3,4,5
Step-by-step explanation:
-4<n<6
Find the slope of the line that passes through (-5,-6), (-14,10)
Answer:
[tex]m=-\frac{4}{3}[/tex]
Step-by-step explanation:
Formula
[tex]m=\frac{rise}{run}=\frac{y_{2}-y_{1} }{x_{2}-x_{1}}[/tex]
Solve
[tex]m=\frac{10+6}{-14+5}=\frac{16}{-9}=-\frac{4}{3}[/tex]
Answer:
Step-by-step explanation:
A=(-5, -6) = (x1 , y1)
B= (-14, 10)= (x2 , y2)
slope= y2 - y1/ x2- x1
=10+6/ -14+5
= 16/ -9
= 4 / -3
Simplify
square root of -44
Answer: 6.63324958 i
Answer 2: 2i√11