Answer:
-2y
Step-by-step explanation:
Let's simplify step-by-step.
x−y−(x+y)
Distribute the Negative Sign:
=x−y+−1(x+y)
=x+−y+−1x+−1y
=x+−y+−x+−y
Combine Like Terms:
=x+−y+−x+−y
=(x+−x)+(−y+−y)
=−2y
Answer:
-2y
Step-by-step explanation:
............... ..........
A washing machine is filling up with water at a constant rate. The rate is Three-fourths of a gallon in StartFraction 1 over 5 EndFraction of a minute. Don calculated the unit rate to be StartFraction 3 over 20 EndFraction of a gallon per minute. What did he do wrong?Jonah bicycled 12 miles in 4 hours. What is the unit rate?
Answer:
3/4 in 1/5 of 60 sec
1/5*60=12
3/4 in 12 seconds
3/4*5=15/4=3 3/4
He multiplied 3/4 by 1/5 instead of by its reciprocal , 5.
12/4=3
3 mph
Answer:
3/4 in 1/5 of 60 sec
1/5*60=12
3/4 in 12 seconds
3/4*5=15/4=3 3/4
Step-by-step explanation:
What are the three pairs of parallel segments in ABC?
Answer:
AB || YZ, BC || XY, AC || XZ
Please help me. Thank you to anyone that helps!
Which of the following angles is one of the two reflexive interior angles in
this polygon?
Pls help me
Answer:
Its D i got it right
Answer:
the answer is d if u look u will see that h is the
Step-by-step explanation:
2) Graph by making a
table.
y=x-4
Answer:
Explanation:
y= x-4
is in the slope-intercept form for a linear equation,
y= mx+b
, where
m
is the slope and
b
is the y-intercept. In the given equation,
m= 1
and
b= 4
.
To make a table to graph, give various values to
x
and solve for
y
.
Ordered Pairs
x......y
4...8
2....6
0.......4
2......2
4......0
Plot each ordered pair and draw a straight line through the points.
graph{y=-x-4 [-14.24, 14.23, -7.12, 7.12]}
The vertices of a polygon are shown below.
P(1, 3). Q2,3), R(-4, 1),S(-4,-3), T(-2, -5), U(1, -5), V(3, -3),w(3, 1)
Which polygon has these vertices?
Hexagon
Plzzz help I will mark brainlest my time is running out!!!!!
Answer:
The Answer is C
Step-by-step explanation:
This applies to your exam.
Answer:
C
Step-by-step explanation:
This is correct on edge 2020.
Simplify
hurrryyyyyy pleaseee
Answer:
1
Step-by-step explanation:
Consider the function () = 2 + 3. Find its average rate of change on the interval −1 ≤ ≤ 3.
Answer:
See Explanation
Step-by-step explanation:
The function is not properly given. So, to solve this question I'll assume it is:
f(x) = x² + 3
Required
Calculate the average rate of change on −1 ≤ x ≤ 3.
[The average rate of change (R) is calculated using:]
R = (f(b) - f(a))/(b - a)
[Where]
a ≤ x ≤ b = −1 ≤ x ≤ 3.
[This means that]
a = -1
b = 3
[Solving f(b); We have]
f(x) = x² + 3
[Substitute b for x]
f(b) = b² + 3
[Substitute 3 for b]
f(3) = 3² + 3 = 9 + 3 = 12
[Solving f(a); We have]
f(x) = x² + 3
[Substitute a for x]
f(a) = a² + 3
[Substitute -1 for b]
f(-1) = (-1)² + 3 = 1 + 3 = 4
[So, the equation becomes]
R = (f(b) - f(a))/(b - a)
R = (12 - 4)/(3 - (-1)
R = 8/(3+1)
R = 8/4
R = 2
[Hence, the average rate of change is 2]
Mrs. Crimm signed up to bring two dozen cupcakes for the school bake sale. She made one dozen, but her children ate 3 of the cupcakes. Which of the following could be used to determine c, the number of cupcakes Mrs. Crimm needs to bake?
Determine what regions make up the given probabilities - shade the Venn Diagram,
The value of (3a – 4b + 2) × (5a + 6) for a = 1 and b = -2 is
Step-by-step explanation:
We know that
a=1 and b= -2
{3*1-4*(-2)+2} .{5*1+6}
= (13-11)
=2
Answer:
143
Step-by-step explanation:
(3a – 4b + 2) × (5a + 6)
a = 1 ; b = - 2
(3(1) – 4(-2) + 2) × (5(1) + 6)
Inputting the values of a and b
(3 - (-8) + 2) * (5 + 6)
(3 + 8 + 2) * (11)
13 * 11
= 143
please help me on this!
Answer:
(a.) B: 8,000
(b.) C: 800
(c.) A. 10 times
Step-by-step explanation:
8762 has 3 digits after the 8. 8,000 has 3 digits after the 8
851 has 2 digits after the 8. 800 has 2 digits after the 8.
8,000 ÷ 800 = 10
Another way to do it is: 8000 has 3 zeros and 800 has 2 zeros.
3 - 2 = 1. 10 has 1 zero.
I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!
Which is the solution of the quadratic equation (4y - 3)2 = 72?
( O
A y= 3 +677 and y = 3-6v2
€
D y = 3 +672 and y =
-3-6√
4
O y= 92 and y= -312
4
4
O y = 9/7 and y = 32
Answer: 2 one number 2
Step-by-step explanation:
It's is number 2
The required solution of the quadratic equation (4y - 3)² = 72 is y = 3 ± 6√2/4. Option A is correct.
What is simplification?
Simplification involves applying rules of arithmetic and algebra to remove unnecessary terms, factors, or operations from an expression.
Here,
Given expression, (4y - 3)² = 72
Simplifying the above expression:
(4y - 3)² = 72
4y - 3 = ±√72
4y - 3 = ±6√2
y = 3 ± 6√2/4
Thus, the required solution of the quadratic equation (4y - 3)² = 72 is y = 3 ± 6√2/4. Option A is correct.
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Find the surface area of this triangular prism.
Please explain as well, I’m struggling with it.
Answer:
SA= 84 cm^2
Step-by-step explanation:
So first locate all the surfaces
we got 5 sides in total
Now calculate each one
Lets start with the 2 triangles
so formula for area of triangl is 1/2(b*h)
So in this case it’s 6
Now there are 2 identical triangles
So Times the 6 by 2
You’ll get 12
Thats 2 sides
Now for the side with the rectangle of 5cm and 6cm
Area of rectangle is 5*6=30
That would onay be 1 side
Now for the bottom of the prisim which is the side with 4cm and 6cm
Same rectangle so multiply
4*6=24
Thats another side down
The last side is on the left with the back not visible. The two dimensions are 6 and 3
Now multiply 6*3
18
Now add up your total
18+24+12+30=84
So 84 cm^2 OR 84 square centimeters
Answer:
84 [tex]cm^{2}[/tex]
Step-by-step explanation:
To find the surface area of a prism, one will have to find the area of each of the sides of the prism, then add the areas up. First, find the dimensions of each of the sides
Front; 5 x 6
Front triangle; 3 x 4
Back triangle; 3 x 4
Bottom; 4 x 6
Back; 3 x 6
The front is a rectangle, hence one has to [tex]base * height[/tex] to find the area;
5 x 6
= 30
The front triangle is a triangle, hence on has to do [tex]\frac{base * height}{2}[/tex] to find the area;
[tex]\frac{3*4}{2}[/tex]
= 6
The back triangle is a triangle, hence on has to do [tex]\frac{base * height}{2}[/tex] to find the area;
[tex]\frac{3*4}{2}[/tex]
= 6
The back is a rectangle, so one has to do [tex]base * height[/tex] to find the area;
4 * 6
= 24
The bottom is a rectangle, o one has to do [tex]base * height[/tex] to find the area;
3 * 6
= 18
Noe one has to add up all the areas to find the total surface area;
Front + Front_triangle + Back_triangle + Bottom + Back
30 + 6 + 6 + 24 + 18
= 84
If the mode of the data is 34.5, find the missing frequency 'f':
Class
0-15
15 - 30
30 – 45
45 - 60
60 – 75
Frequency
2
7
f
3
7
please answer!
Given:
Frequency distribution table.
Mode = 34.5
To find:
The value of missing frequency 'f'.
Solution:
Formula for mode is
[tex]Mode=l+\dfrac{f_1-f_0}{2f_1-f_0-f_2}\times h[/tex]
where, l is lower limit of modal class, [tex]f_1[/tex] is frequency of modal class, [tex]f_0[/tex] is frequency of preceding class, [tex]f_2[/tex] is frequency of succeeding class, h is class size.
Mode is 34.5, so the modal class is 30-45. So,
[tex]l=30,f_1=f,f_0=7, f_2=3,h=45-30=15[/tex]
Putting these values in the above formula, we get
[tex]34.5=30+\dfrac{f-7}{2f-7-3}\times 15[/tex]
[tex]34.5-30=\dfrac{f-7}{2f-10}\times 15[/tex]
[tex]4.5=\dfrac{f-7}{2f-10}\times 15[/tex]
Divide both sides by 15.
[tex]\dfrac{4.5}{15}=\dfrac{f-7}{2f-10}[/tex]
[tex]0.3=\dfrac{f-7}{2f-10}[/tex]
[tex]0.3(2f-10)=f-7[/tex]
[tex]0.6f-3=f-7[/tex]
Separating variable terms, we get
[tex]0.6f-f=3-7[/tex]
[tex]-0.4f=-4[/tex]
Divide both sides by -0.4.
[tex]f=\dfrac{-4}{-0.4}[/tex]
[tex]f=10[/tex]
Therefore, the value of f is 10.
Solve 3/5x=15
Please
Answer:
dude
if 3 = 15
5x = 5.5=25
Step-by-step explanation:
hope it helps
Look at the photo pick A B C D either one explanation not needed thank you! <3 [13]
Answer: D
Step-by-step explanation: Correct me if I'm wrong.....
The scatterplot and trend line show the number of pass
attempts and passing yards a football team had during
seven seasons.
Because none of the data points lie on the trend line,
you must find two points on the line.
Point 1 can be
Point 2 can be
Using those twe (26, 2855) ope of theline is|
Football Passing Statistics
2875fy
2870
2865
2860
E2855
2850
2845
(233,2850)
(245, 2860)
230 233 238 239 242 245 248 251 254257
Pass Attempts
Done
Answer:
Step-by-step explanation:
The slope of the trend line in the given scatter plot, using the two chosen points (236, 2855) and (248, 2865) is: 0.83.
What is the Slope of a Trend Line?The slope of a trend line = change in y/change in x.
Given the scatter plot, we can choose the following points, which we would use in finding the slope of the trend line:
(236, 2855) and (248, 2865).
Slope = (2865 - 2855)/(248 - 236)
Slope = 10/12
Slope = 0.83
Therefore, the slope of the trend line in the given scatter plot, using the two chosen points (236, 2855) and (248, 2865) is: 0.83.
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Can someone explain what f(12) means?
Answer:
A special relationship where each input has a single output. It is often written as "f(x)" where x is the input value. Example: f(x) = x/12 ("f of x equals x divided by 12")
Step-by-step explanation:
You are moving to a new apartment and need to hire a moving company. You’ve researched local moving companies and found these price options.
Company Flat Fee Hourly Rate
Company A $50 $25
Company B $40 $30
Company C $60 $20
Company D $150 $5
If you anticipate that it will take about 4 hours to move everything, what is the approximate percentage difference of the best and worst deals according to their unit costs?
A.
16%
B.
18%
C.
19%
D.
21%
Answer:
answer is C. 19%.
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A participant in an experiment who incorrectly believes she is receiving treatment and reports an improvement in their condition is experiencing
blinding.
placebo.
control group.
placebo effect.
Answer:
placebo.
Step-by-step explanation:
In 1983, a microwave oven cost $78.75. Today, a microwave oven costs $92.66. If the CPI is 177, what is the relation of the actual price of a microwave oven to the expected price, to the nearest cent?
a. The actual price is $46.73 lower than the expected price.
b. The actual price is $5.59 lower than the expected price.
C. The actual price is $13.91 higher than the expected price.
d. The actual price is $71.35 higher than the expected price.
Answer:
its A on e2020
Step-by-step explanation:
The actual price is $46.73 lower than the expected price.
The actual price is $46.73 lower than the expected price.
What is Division method?Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications.
For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.
Now, The Formula for Consumer Price Index is,
⇒ [tex]CPI = C_{t} / C_{0}[/tex]
Where, CPI = consumer price index in the current period
Ct = expected cost in current period
C₀ =cost in the base period
Now, It is given that;
Price in base period in 1983 is, C₀= $78.75
The actual cost of the microwave oven = $92.66
Consumer Price Index= 177
So, We Can expected price of microwave oven in the current period
Ct = CPI * C₀ /100
= 177 × 78.75/100
= $139.39
Thus, Difference between the actual price and expected price is,
= 139.39 - 92.66
= $46.73
Therefore, The actual price is $46.73 lower than the expected price.
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Dilate by a scale
factor of 1/2
AL
D
Answer:
The image triangle ΔD'L'W' after the dilation by a scale factor of 1/2 will have the vertices:
D' (0, 1) L' (1/2, 5/2) or L'(0.5, 2.5)W' (5/2, 2) or W'(2.5, 2)`The figure of the dilated image is attached below.
Step-by-step explanation:
Given the triangle ΔDLW withe the vertices
D(0, 2)L(1, 5)W(5, 4)As the scale factor 1/2 < 0, thus the image triangle will be smaller than the original triangle.
The rule of dilation is given by
Dilation: (x, y) → (1/2x, 1/2y), centered at (0, 0)
D(0, 2) → D' (1/2x, 1/2y) → D' (1/2(0), 1/2(2)) = D' (0, 1)
L(1, 5) → L'(1/2x, 1/2y) → L'(1/2(1), 1/2(5)) = L' (1/2, 5/2)
W(5, 4) → W'(1/2x, 1/2y) → W'(1/2(5), 1/2(4)) = W' (5/2, 2)
Therefore, the image triangle ΔD'L'W' after the dilation by a scale factor of 1/2 will have the vertices:
D' (0, 1) L' (1/2, 5/2) or L'(0.5, 2.5)W' (5/2, 2) or W'(2.5, 2)`The figure of the dilated image is attached below.
What is the slope of this line? II y = -3x + 1
Answer:
-3
Step-by-step explanation:
y = mx + b
m represents the slope, and on this equation, instead of m we have -3. So -3 is the slope
Answer:
Slope m = -3
General Formulas and Concepts:
Algebra I
Slope-Intercept Form: y = mx + b
m - slope b - y-interceptStep-by-step explanation:
Step 1: Define
y = -3x + 1
Step 2: Break Function
Identify Parts
Slope m = -3
y-intercept b = 1
Tim has x beads. Amy has two more beads than Tim. Sarah has five times as many beads as Amy. How many beads does Sarah have?
Answer:well we need to know how mmch tim has so like
x?+2 is amy
x?+2*5 is sarah
Step-by-step explanation:
Which equation best represents the best relationship between x and y in the graph?
Starter
Question 1: Simplify each of the following
(a) y + y + y + y
(b) w+W+W+W + W
(c) a + a + a + a + a + a
(d) 5+$+
(e) nun
Og+ 8 + 8 + g-8
(g) y + y + y + y - y - y
(h) + p-p-p
(1) 3y + 2y
0) 4a + 3a
(k) 9k + 5k
("m+ m
(m) 150 - 200
(n) 6w - 3w
(0) 10y + 3y - 5y
(p) 20 - 140
Answer:
a)y^3
o)7a^2
I know only that
what is x if: 5÷x=30
Answer:
x = 1/6
Step-by-step explanation:
Rewrite the equation to get 5/x = 30. Multiply x on both sides to get 5 = 30x. Then divide 30 on both sides to get your x value which is 1/6.
Answer:
x= 1/6
Step-by-step explanation:
multiply both sides by x
divide both sides by 30
simplify 5/30 to 1/6
For which x is f(x)=-3?
Answer:
This Problem has no answer
Step-by-step explanation:
if you have 1 variable you at least 2 facts that aren't the same to solve for the variable
Answer:
This problem does not have a definite answers
It can have infinite answers
-1 over 5 divided by 7 over 4
Answer:-0.00714
Step-by-step explanation: STEP
1
:
1
Simplify —
5
Equation at the end of step
1
:
1
0 - — ÷ 7 ÷ 4
5
STEP
2
:
1
Divide — by 7
5
Equation at the end of step
2
:
1
0 - —— ÷ 4
35
STEP
3
:
1
Divide —— by 4
35
Equation at the end of step
3
:
1
0 - ———
140
STEP
4
:
Final result :
-1
——— = -0.00714
140