1а - За =
o4a
O
-2а
О2а
О-4а
Answer:
-2aStep-by-step explanation:
[tex]1a - 3a \\ = - 2a[/tex]
Use the number line below, where RS = 7y +5, ST = 2y + 7, and RT = 14y - 28.
a. What is the value of y?
b. Find RS, ST, and RT.
Answer:
a. 8
b. 61, 23, 84
Step-by-step explanation:
As we can see, point S is between points R and T, therefore:
RS + ST = RT7y + 5 + 2y + 7 = 14y - 289y + 12 = 14y - 2814y - 9y = 12 + 285y = 40y = 40/5y = 8------------
RS = 7y+5 = 61ST = 2y + 7= 23RT = 14y - 28 = 84Keith has 39 books in his library he brought several books at a yard sale over the weekend he now has 84 in his library how many? Keith has 45 boooks
Subtract original amount from new amount:
84 - 39 = 45
He bought 45 books.
Subtract 12h+1 from 34h+4 . what is the answer? a.−1/4h+5 b.1/4h+5 c.−1/4h d.1/4h+3
Answer:
D
Step-by-step explanation:
We would like to solve:
(3/4h + 4) - (1/2h + 1)
This is equivalent to:
3/4h + 4 - 1/2h - 1
First, combine like terms; that is, combine the terms with h in them and combine the terms without h in them:
3/4h - 1/2h + 4 - 1
The common denominator for 3/4 and 1/2 is 4, so:
3/4h - 1/2h = 3/4h - 2/4h = 1/4h
Put this back in:
1/4h + 4 - 1
1/4h + 3
The answer is thus D.
~ an aesthetics love
The football team lost three yardsOn the first play game 5 yards on the second play in lost to yards on the third play represent the total yards after three plays as an integer
Answer:
Total lost yards = 10 yards
Step-by-step explanation:
Given:
First match = lost 3 yards
Second match = lost 5 yards
Third match = lost 2 yards
Find:
Total lost yards
Computation:
Total lost yards = First match + Second match + Third match
Total lost yards = 3 yards + 5 yards + 2 yards
Total lost yards = 10 yards
URGENT!!! What is the real part of 4−5i?
Answer:
4
Step-by-step explanation:
The real part of a complex number is the part that does not have "i" as a factor.
Here, the real part is 4.
You roll a fair die. What is the probability of rolling a 3 or an even number
Answer:2/3 or 66.666%(don't quote me if I'm wrong about this)
Identify the number that does not belong with the other three. Explain your reasoning (24 points)
Answer:
See explanation
Step-by-step explanation:
The number that would not belong is [tex]\sqrt{48}[/tex] since it is irrational
Answer:
[tex]\sqrt{48}[/tex]
Step-by-step explanation:
Looking at the numbers, we can see that the first number, third, and fourth number are all rational numbers since they either repeat or terminate.
On the other hand, let's try and simplify the square root of 48:
[tex]\sqrt{48}=\sqrt{16\cdot3}=\sqrt{16}\cdot\sqrt3=4\sqrt3[/tex]
The square root of 3 is irrational. Therefore, 4 times the square root of 3 is also irrational. All of the given numbers are rational instead of the second one. So, the second number does not belong .
which of the following equations does not represent a true statement
Answer:
C) -6-(-3)=3
Step-by-step explanation:
-6-(-3)=
-6+3=
-3 (Not positive 3)
So the third one is incorrect
7. 4y(5y - 11) – 2y(3y + 10)
Answer:
[tex]14y^{2} -64y[/tex]
Step-by-step explanation:
Hello!
4y(5y - 11)
Distribute the 4y
4y * 5y = 20y^2
4y * -11 = -44y
Put it together
20y^2 - 44y
2y(3y + 10)
Distribute the -2y
-2y * 3y = -6y^2
-2y * 10 = -20y
Put it gether
-6y^2 - 20y
Put it all together
20y^2 - 44y - 6y^2 - 20y
Combine like terms
14y^2 - 64y
The answer is [tex]14y^{2} -64y[/tex]
Hope this helps!
you move 2 units and down 9 units. you end at (5, -5). where did you start
Need help giving 13 points
Answer:
Read Exp:
Step-by-step explanation:
9.) (-6)^2
10.) 10^3
11.) (2/3)^6
Answer:
see below
Step-by-step explanation:
( -6) * (-6)
The base is -6. It is multiplied 2 times so the exponent is 2
(-6)^2
10*10*10
The base is 10 It is multiplied 3 times so the exponent is 3
10 ^3
2/3 * 2/3 * 2/3 * 2/3 *2/3 *2/3
The base is 2/3. It is multiplied 6 times so the exponent is 6
(2/3) ^6
is y=-2+5x a function
Answer:
No
Step-by-step explanation:
Because of the y^2, each value of x will be represented twice on the y-axis. Henceforth, the vertical line will pass through this line twice. THIS IS NOT A FUNCTION. ... It passes the vertical test for function.
don’t understand why I have to type a question each time when I have a picture but anyone know this?!
Answer:
3/8
Step-by-step explanation:
There are 8 boxes and 3 shaded columns
[tex]\frac{3}{4}\times \frac{1}{2} \\\\=\frac{3\times \:1}{4\times \:2}\\\\=\frac{3}{4\times \:2}\\\\=\frac{3}{8}[/tex]
Answer:
Hey there!
The correct answer is 1/2(3/4)=3/8
Hope this helps :)
If anyone knows how to do this stuff I would love some help (✿◠‿◠)
Answer:
See explanation below
Step-by-step explanation:
(a) The spread of the data is represented by their range,
Adam's Range : 106 - 91 = 15
Miguel's Range : 105 - 86 = 19
As Miguel's Range is greater, his data has the greater spread
(b) The middle 50 percent of both data sets would be the following,
Adam | 103 | 105 | 104 | 106 | 100
Miguel | 88 | 86 | 89 | 93 | 105
And their 50% range would be ...
Adam's 50% Range : 106 - 100 = 6,
Miguel's 50% Range : 105 - 86 = 19
Adam still has the least spread, even in the middle 50%
(c) This proves that their is a small variance in Adam's training times, but a large variance in Miguel's training times (Miguel's data is more likely skewed).
Help please!!!! Thank you
Answer:
Option (C) : 3
Step-by-step explanation:
Circumference of front tire = Circumference of back tire
[tex]3(2\pi\: r) = 2\pi \R[/tex]
[tex] \R = 3r[/tex]
Hari borrowed Rs. 126000 from a money-lender at 15% per annum simple interest,
After 3 years, he paid Rs. 70700 and gave a buffalo to clear off the debt. What is the
cost of the buffalo?
Answer:
Rs. 112000
Step-by-step explanation:
Borrowed money = Rs. 126000Interest rate = 15% PA simpleTime = 3 yearsHari is due to pay after 3 years:
126000* (1+ 3*15/100) = 182700He pays Rs. 70700, remaining money is cleared by giving buffalo.
Cost of buffalo:
182700 - 70700= Rs. 112000Answer is: Rs. 112000
Answer:
Solution,
principal(P)= Rs. 126000
Rate(R)=15%
Time(T)=3 years
Money paid=Rs.70700
Cost of buffalo=?
We know that,
Interest=P*T*R
100
= Rs. 126000*3*15
100
= Rs. 56700
Now,
Amount(A)=P+I
=Rs. ( 56700+126000)
= Rs.182700
Again,
by the question,
Cost of buffalo= Amount- Money paid
= Rs.(182700- 70700)
= Rs. 112000
Therefore, the cost of buffalo is Rs. 112000.
Selma uses a jogging trail that runs through a park near her home. The trail is a loop that is 3/4 of a mile long. On Monday, Selma ran 1/6 the loop in an hour. What is Selma’s unit rate in miles per hour for Monday’s run? In this activity, you will use the common denominator method to calculate a unit rate that involves fractions. Answer the questions that follow to calculate Selma’s unit rate in miles per hour. In this activity, you will use the common denominator method to calculate a unit rate that involves fractions. Answer the questions that follow to calculate Selma’s unit rate in miles per hour. According to the question, the unit rate is to be expressed in which units?
Hello There!!~
The units of per hours is = 4.5
Explanation:
Unit rate in miles per hour is the ratio of total distance covered in miles to total time taken in hour to cover that distance.
L = 3/4
Time taken to cover the loop on monday:-
T = 1/6 hours.
Unit rate in miles per hour :-
V = L/T
=> 3/4 ,1/6 =18/4
18/4 = 4 5
Hope This Helps!! :)
By °~Itsbrazts°~
What is the term, coefficient, constant, and factor of 1/2(base1 + base2)h? (Formula used to find area of trapezoid)
Answer:
i. Term = [tex]\frac{b_{1}h }{2}[/tex] + [tex]\frac{b_{2}h }{2}[/tex]
ii. Coefficient = [tex]\frac{1}{2}[/tex]
iii. Constant = [tex]\frac{1}{2}[/tex]
iv. Factor = [tex]\frac{h}{2}[/tex]
Step-by-step explanation:
A trapezoid is a quadrilateral which has its base parallel to the opposite side. It's area can be determined by;
Area of trapezium = [tex]\frac{1}{2}[/tex] ([tex]b_{1}[/tex] + [tex]b_{2}[/tex])h
Where [tex]b_{1}[/tex] is the measure of length of its fist base, [tex]b_{2}[/tex] is the measure of its second base and h is its height.
Considering the given question,
Term = [tex]\frac{b_{1}h }{2}[/tex] + [tex]\frac{b_{2}h }{2}[/tex]
Coefficient = [tex]\frac{1}{2}[/tex]
Constant = [tex]\frac{1}{2}[/tex]
Factor = [tex]\frac{h}{2}[/tex]
Simplify the expression
5+(-6)^2
Answer:
41
Step-by-step explanation:
5 + (-6)^2
=> 5 + 36
=> 41
.A straight line passes through point A(2,4) and B(6,12). Find the equation of the perpendicular bisector of line AB (write your answer in the form ax+by=c)
Answer:
x + 2y = 20
Step-by-step explanation:
We require the slope and the midpoint of AB
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = A(2, 4) and (x₂, y₂ ) = B(6, 12)
m = [tex]\frac{12-4}{6-2}[/tex] = [tex]\frac{8}{4}[/tex] = 2
Given a line with slope m then the slope of a line perpendicular to it is
[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{2}[/tex]
-----------------------------------
Given endpoints (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is
[ [tex]\frac{x_{1}+x_{2} }{2}[/tex] , [tex]\frac{y_{1}+y_{2} }{2}[/tex] ]
Thus midpoint of AB = ( [tex]\frac{2+6}{2}[/tex], [tex]\frac{4+12}{2}[/tex] ) = (4, 8 )
--------------------------------------------
y = - [tex]\frac{1}{2}[/tex] x + c ← partial equation of perpendicular bisector
To find c substitute (4, 8) into the partial equation
8 = - 2 + c ⇒ c = 8 + 2 = 10
y = - [tex]\frac{1}{2}[/tex] x + 10 ← in slope- intercept form
Multiply through by 2
2y = - x + 20 ( add x to both sides )
x + 2y = 20 ← in the form ax + by = c
A van can travel 18 miles on each gallon of gasoline. At that rate, how many miles can the van travel on 15 gallons of gasoline? -33 miles -83 miles -120 miles -270 miles
Answer:
Hey there!
1 gallon of gas is equal to 18 miles of road.
15 gallons of gas is equal to 18(15) miles, or 270 miles of road.
Let me know if this helps :)
Answer:
D) because if you take 18 times 15 you would get 270
Step-by-step explanation:
Stay safe, positive, and healthy C:
Have a wonderful morning c:
what is the length of a rectangle with width 16 in. and area 120 in^2
Answer:
It will have to be 7.5 inches.
Step-by-step explanation:
120 divided by 16 is 7.5 inches.
Answer:
Hey there!
A=LW
120=L16
L=7.5 in
Let me know if this helps :)
the area of a triangle is 54 cm. if the height is 3 cm more than the base, find the length of base
A manufacturer drills a hole through the center of a metal sphere of radius R = 8. The hole has a radius r. What value of r will produce a ring whose volume is exactly half the volume of the sphere? (Round your answer to two decimal places.)
Answer:
New radius(r) = 3.65 (Approx)
Step-by-step explanation:
Given:
Radius of sphere(R) = 8
Find:
New radius(r)
Computation:
Volume of sphere = (4/3)πR³
Volume of sphere = (4/3)π(6)³
Volume of sphere = 288π
Volume of ring = (4/3)π(R²-r²)³/²
Half volume of sphere = Volume of ring
288π / 2 = (4/3)π(R²-r²)³/²
144 = (4/3)(6²-r²)³/²
108 = (6²-r²)³/²
New radius(r) = 3.65 (Approx)
b) Below is a regular hexagon. A piece is cut out and translated to the opposite side to form an
irregular polygon that will tessellate. On the right, the figure that can tessellate is drawn solid,
and the original hexagon sides are shown as dashed lines. (10 points)
Copyright Edcenuity in
Student Guido (continued)
Perform two translations to the parallelogram below to transform it into an irregular polygon
that can tessellate.
Using inspiration from the hexagon example, we can cut out a side of the parallelogram and move that portion to the opposite side. The cut can be a curve of any kind or it could be a jagged edge like I have done below. The figure tessellates the plane as shown in the last section of the diagram. We can place the figures side by side to fill up a 2D space. Think of it like putting a jigsaw puzzle together in a way.
5-2(2x - 3) = 12
Cual es el resultado de x?
Answer:
[tex]x = - \frac{1}{4} [/tex]Step-by-step explanation:
5-2(2x - 3) = 12
Expanda los términos en el corchete
Eso es
5 - 4x + 6 = 12
Agrupar términos similares
Envíe las constantes al lado derecho de la ecuación y aquellas con variables al lado izquierdo
Tenemos
- 4x = 12 - 5 - 6
- 4x = 1
Divide ambos lados entre - 4
[tex] - \frac{4x}{ - 4} = - \frac{1 }{4} [/tex]Tenemos la respuesta final como
[tex]x = - \frac{1}{4} [/tex]Espero que esto te ayude
A family travels, by plane, five hundred miles from their city to a beach town. Then they take a taxi from the airport to the hotel at the beach. When they ask the driver how far the airport is from the hotel, he tells them twenty kilometers. What is the approximate total distance, in miles, the family traveled
Answer:
512.4274 miles
Step-by-step explanation:
500m + 20k = distance
1 kilometer = 0.621371 miles
20k = 12.4274
500 + 12.4274 = 512.4274 miles
Which of the following is a statement? What talent! He is talented. Is he talented?
Answer:
he is talented
Step-by-step explanation:
You spend $30 20 on 4 CDs Each CD costs the same amount and is on sale for 80% of the original price
2 Write and solve an equation to find how much you spend on each CD. Let p represent the price you pay for each CD
Equation QS-2240
You spent $ 5.5 on each CD
The next day, the CDs are no longer one sale You have $25. Will you be able to buy 3 more CDS?
Yes you will
be able to buy 3 more CDs
Explain your reasoning for part b).
Each CD COSTS
at the regular price, so 3 CDs would cost $
Answer:
You will only be able to buy two at the original price the following day.
Step-by-step explanation:
You spend $30.40 on 4 CDs. Each CD costs the same amount and is on sale for 80% of the original price.
If x = original cost of one CD
80% of one CD = 0.8x
0.8x = the price you pay for one discounted CD
You buy 4 of the discounted CDs for $30.40
4(0.8x) = 30.40
solve for x, the original cost of one CD
3.2x = 30.40
x = 9.50
The next day, the CDs are no longer one sale. You have $25. Will you be able to buy 3 more CDs?
25$ / $9.50 = 2.63 CDs