Answer:
The preceding chapter explored implications of research on learning for general issues relevant to the design of effective learning environments. We now move to a more detailed exploration of teaching and learning in three disciplines: history, mathematics, and science. We chose these three areas in order to focus on the similarities and differences of disciplines that use different methods of inquiry and analysis. A major goal of our discussion is to explore the knowledge required to teach effectively in a diversity of disciplines.
Step-by-step explanation:
The preceding chapter explored implications of research on learning for general issues relevant to the design of effective learning environments. We now move to a more detailed exploration of teaching and learning in three disciplines: history, mathematics, and science. We chose these three areas in order to focus on the similarities and differences of disciplines that use different methods of inquiry and analysis. A major goal of our discussion is to explore the knowledge required to teach effectively in a diversity of disciplines.
Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $30 monthly fee and charges an additional
$0.14 for each minute of calls. The second plan has a $22 monthly fee and charges an additional $0.19 for each minute of calls. For how many minutes of calls
will the costs of the two plans be equal?
Answer:
The plans will be equal at 160 minutes of call
Step-by-step explanation:
1st plan: y = 0.14x + 30
2nd plan: y = 0.19x + 22
0.14x + 30 = 0.19x + 22
Subtract 0.19x from both sides;
-0.05x + 30 = 22
Subtract 30 from both sides;
-0.05x = -8
Divide both sides by -0.05
x = 160
Question 20
What is the GCF of 140n, 140m² and 80m2 ?
Which expression is quivalent to this one ?
Answer:
third option 11
Step-by-step explanation:
Answer:
Second option: 1
Step-by-step explanation:
input it in a calculator, and the answer was 1
Write the word sentence as an inequality.
A number y is no more than −8.
An inequality is
.
Answer:
y ≤ -8
Step-by-step explanation:
hi guys can you help me can you do this calculation with the working pls
$36 - $17.85 =
Answer:
$18.15
Step-by-step explanation:
Here, we want to find the difference between the two values
what we do here simply is to subtract the second from the first
Mathematically we have this as;
36-17.85 = $18.15
I’m have trouble with this one
Answer:
y/cost=m/months/× x/cost per month+ b/ initial fee
Don claims that the trianlges are congruent by SAS triangle congruence criterion because a sequence of rigid motions carries \triangle ABC△ABC onto \triangle DEF△DEF. Select all that can be used to support Don's claim.
A -a rotation of 30^o30 clockwise about vertex A, follwed by a translation that carries AB to DE, and a reflection over AC.
B- a rotation of 30^o30 clockwise about vertex A, follwed by a translation that carries AB to DE, and a reflection over AB.
C- a rotation of 90^o90 counterclockwise about vertex A, follwed by a translation that carries AC to DF, and a reflection over AC.
D- a rotation of 90^o90 counterclockwise about vertex A, follwed by a translation that carries AC to DF, and a reflection over AB.
Answer:
The triangles would match if you chose D
Which statement is not correct?
A. The terminal side of a 45° angle is in quadrant I.
B. A 95° angle is an acute angle.
C. A 210° angle is a reflex angle.
D. A 125° angle is an obtuse angle.
Answer:
b.) because it is over 90*
Step-by-step explanation:
¿cual es la relacion de los conceptos: razon de cambio y derivada?
Answer:
?? I don’t speak spanish
Step-by-step explanation:
Plz help with math plzlzlzlzl
Solve the equation for all real solutions.
k^2+8k+22=6
Answer:
Step-by-step explanation:
Here you go mate
step 1
k^2+8k+22=6 equation
step 2
k2+8k+22(-6)=6(-6) subtract -6
k2+8k+16=0
step 3
k2+8k+16=0 factor
(k+4)(k+4)=0
step 4
(k+4)(k+4)=0 set the numbers equal to zero
answer
k=-4
Which of the following functions best describes this graph?
A. y = (x-1)(x+3)
B. y =x^2-x+5
C. y = (x+1)(x+1)
D. y=x^2-5x+6
i will give u Brainliset rn if u answer
Answer:
11x+16y = 13
16y = -11x+13
y = -11/16x+13/16
Step-by-step explanation:
Pls help me ASAP I DONT know what to put. I only have 6 minutes to answer pls help
Answer:
Y= 59* X=20cm?
Step-by-step explanation:
I am not 100% sure but it should be close
PLS HELP ILL GIVE BRAINLEIST !!!!!!
15)Big Bird is making wedding favors for Jack and Jill. He can create 3 vases
every hour. He already had 2 vases in his storage area (7 pts)
a Write an equation to model this situation:
b. Graph Big Bird's vases. Be sure to label the axes appropriately
Watch the scales on the axes!!!
hours
vases
12
10
1
2
3
4
6+
4
2
O
i
3
Answer:
y=3x+2
Step-by-step explanation:
For a the equation is y=3x+2 because he makes 3 every hour (3x) and he already has 2 (+2).
For the graph you replace x with any number and solve. Plot the point.
Then you do it again but with a different x.
Finally you draw a straight line trough the 2 points.
Write as a mixed number.
25/8
Answer:
3 1/8
Step-by-step explanation:
50% of _= 2
help!!! thanksssss
Answer:
100
Step-by-step explanation:
Answer:
1
Step-by-step explanation:
A line passes through the origin and (4, 5). Which point is also on the line?
Answer:
I belive (8,10)
Step-by-step explanation:
8 is 4 twice
10 is 5 twice
Find the values of the sine, cosine, and tangent for angle A
Answer:
sin = p/h.
cos=b/h
tan =p/b
pythagoras
h^2=p^2+b^2
here
h=5
p= 3
b=4
Answer:
sin(A)=3/5
cos(A)=4/5
tan(A)=3/4
Step-by-step explanation:
length of the other side is 5 using pythagorean theorem
sin= opposite/hypotenuse
cos= adjacent/hypotenuse
tan= opposite/adjacent
opposite angle A- 3
adjacent angle A- 4
hypotenuse- 5
the price of a calculater has decreased from $200 to $150. What is the percentage of decrease?
Answer:
25%
Step-by-step explanation:
200-150=50
50/200=0.25
have a nice day!
Line d passes through points (10, 10) and (7, 5). Line e is perpendicular to d. What is the slope of line e?
Simplify your answer and write it as a proper fraction, improper fraction, or integer.
Answer:
(-3,-5)
Step-by-step explanation:
subtract y1 from y2 and you get -5. Now subtract x1 from x2 and you get -3. Now put the x value first and then the y value.
Answer:
m =5/3Step-by-step explanation:
[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}\\\\\left(x_1,\:y_1\right)=\left(10,\:10\right),\\\:\left(x_2,\:y_2\right)=\left(7,\:5\right)\\\\m=\frac{5-10}{7-10}\\\\Simplify\\\\m = \frac{-5}{-3} \\\\m=\frac{5}{3}[/tex]
I WILL MARK BRAINIEST
PLEASE HELP ASAP ITS DUE
Answer:
The star has rotational symmetry of order 5.
Step-by-step explanation:
plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz helppppppppppppppppppppppppppppppppp
1. Write an equivalent expression in standard form, and collect like terms(Combining like terms)
2. Express the answer from Part A as an equivalent expression in factored form.
Answer:
4x-10y
Step-by-step explanation:
Look at the pic...
Answer:
4x + 2y
Step-by-step explanation:
1. 4x - 3(x - 2y) + 1/2(6x - 8y)
4x - 3x + 6y + 3x - 4y
4x + 2y
2. 4x - 3(x - 2y) + (1/2)(6x - 8y) =
4x - 3x + 6y + 3x - 4y =
4x + y(6 - 4) = 4x + 2y = 2(2x + y)
I hope this helps
Solve for x: -2x + 1 = -6
This is a 2-step equation. We will solve it in 2 steps.
[tex]-2x + 1 = -6\\\\-2x = -7\\\\x = \frac{7}{2}[/tex]
The solution for this equation is x = [tex]\frac{7}{2}[/tex].
A taxi driver can cover a distance of 130.16 miles per gallon per 5 gallons of gas if the same taxi driver travel 60 miles at the same miles per gallon the second day what would be the best estimate of number of gallons a taxi driver use
Answer:
[tex]Gallons = 2.305[/tex]
Step-by-step explanation:
Given
Rate = 130.16 miles for 5 gallons
Required
Number of gallons used for a journey of 60 miles
The rate in miles per gallon is calculated as:
[tex]Rate = \frac{Distance}{Gallons}[/tex]
When distance = 130.16 and gallons = 5, we have:
[tex]Rate = \frac{130.16}{5}[/tex]
[tex]Rate = 26.032[/tex]
When distance = 60 miles.
Substitute 60 for distance and 26.032 for rate in [tex]Rate = \frac{Distance}{Gallons}[/tex]
[tex]26.032 = \frac{60}{Gallons}[/tex]
Cross Multiply
[tex]Gallons * 26.032 = 60[/tex]
[tex]Gallons = \frac{60}{26.032}[/tex]
[tex]Gallons = 2.305[/tex] --- approximated
Draw the reflection of the figure over the line shown .
SAT QUESTION!!!
Jayden has been reading a 275-page book for English class. On average, he has read about 10 pages in 15 minutes. With a deadline looming, Jayden realizes that he won't finish in time unless he skims through the rest of the book. If he skims the book, he can cover 15 pages in 10 minutes. If it takes Jayden 5 hours and 50 minutes to finish the book (reading and skimming combined), how many pages did Jayden have to skim through?
WITH STEPSSS
Step-by-step explanation:
Let x be the number of pages that were skimmed through.
Time taken to skim through = 10 * (x/15) = 2/3 x min.
Time taken to read through = 15 * [(275-x)/10] = 1.5(275-x) min.
We have 2/3 x + 1.5(275-x) = 350.
Therefore 412.5 - 5/6 x = 350 and x = 75.
Answer:8pages
Step-by-step explanation:
10minutes/350minutes×275=7.85~8pages
PLEASEEEEEEE HELPPPP!
QUESTION: find the perimeter
Answer:
4g + 4
Step-by-step explanation:
Perimeter of a rectangle = 2(length + width)
Length = 0.7g + 2
Width = 1.3g
Plug in the values into the equation
Perimeter = 2(0.7g + 2 + 1.3g)
Perimeter = 2(0.7g + 1.3g + 2)
Perimeter = 2(2g + 2)
= 2*2g + 2*2
Perimeter = 4g + 4
simplify (8 x k) x 4