Answer:
(6,2)
Step-by-step explanation:
because math
Drag the tiles to the boxes to form correct pairsMatch the expressions with the property used to generate
Answer:
wheres the question??
Cindy says she found a shortcut for doing multiplication problems.When she multiplies 3 x 24 she says,"3 x 4 is 12 ones or 1 ten and 2 ones. Then there's just 2 tens left in 24 ,so add it up, and you get 3 tens and 2 ones .Do you think Cindy shortcut works explain your thinking
Answer:
Of course it doesn't work, 3 x 24 = 72, not 32 (3 tens and 2 ones)
Step-by-step explanation:
This method is similar to decomposition, but it doesn't work. The problem is that she is mixing multiplication, division and addition all together without any sense at all. The way decomposition works is as follows.
Examples of decomposition:
first you can multiply 3 x 4 = 12
then 3 x 20 = 60
add them and you get 72
for example: 6 x 122
6 x 2 = 12
6 x 20 = 120
6 x 100 = 600
add them together = 732
another example: 9 x 356
9 x 6 = 54
9 x 50 = 450
9 x 300 = 2700
add them to get 3,204
PLEASE HELP!!!
HSJSHGXDBSJHCBDSHDCB PLEASEE
Answer:
you can give her brainliest now c:
Step-by-step explanation:
Which student’s first step was incorrect, and why?
Answer:
Todas las sustancias esenciales para el funcionamiento del organismo se obtienen a partir de los alimentos?Determine the area of squre ABCD with AB=3cm
Answer:
The area of the square is 2.25cm
Step-by-step explanation:
Here's what we know:
-Each letter represent a side
-A square is made up of 4 congruent sides
-To find the area of a square you need 2 sides
-We have 2 sides (A and B)
Now we can solve:
If 3cm is the length of A and B together, then we can determine that separately The sides are 1.5cm. We can then multiply 1.5 by itself to get 2.25cm.
Hope this helps :)
What is produced during the replacement reaction of Cu(NO3)2 and Zn? ZnNO3 + Cu Zn + Cu(NO3)2 ZnCu + 2NO3 Zn(NO3)2 + Cu
Answer:
D. Zn(NO3)2 + Cu
Step-by-step explanation:
The correct chemical equation for the replacement reaction of Cu(NO3)2 and Zn is:
Zn + Cu(NO3)2 → Zn(NO3)2 + Cu
What is a replacement reaction?A replacement reaction is a chemical reaction in which an element displaces or replaces another element in a compound. In other words, one element takes the place of another element in a compound.
The general equation for a replacement reaction is:
A + BC → AC + B
We have,
The reaction between copper nitrate (Cu(NO3)2) and zinc (Zn) is an example of a single replacement or displacement reaction, which involves the replacement of one element in a compound by another element.
In this reaction,
Zinc (Zn) reacts with copper nitrate (Cu(NO3)2) to form zinc nitrate (Zn(NO3)2) and solid copper (Cu).
The reaction is driven by the relative reactivity of the metals involved.
Zinc is more reactive than copper, which means that it has a greater tendency to lose electrons and form positive ions.
Copper, on the other hand, is less reactive and has a greater tendency to stay in its elemental form.
When zinc is added to copper nitrate solution, the zinc atoms lose electrons and become positively charged ions, while the copper ions in the solution gain electrons and become solid copper.
The zinc ions then combine with nitrate ions (NO3-) from the copper nitrate solution to form zinc nitrate, which remains in the solution.
The balanced chemical equation for the reaction shows that one molecule of zinc (Zn) reacts with one molecule of copper nitrate (Cu(NO3)2) to form one molecule of zinc nitrate (Zn(NO3)2) and one molecule of solid copper (Cu).
Thus,
The correct chemical equation for the replacement reaction of Cu(NO3)2 and Zn is:
Zn + Cu(NO3)2 → Zn(NO3)2 + Cu
Learn more about replacement reactions here:
https://brainly.com/question/31262369
#SPJ7
Which ratio is equivalent to 3;9?
Answer:
sorry if its incorrect
Step-by-step explanation:
I think its 18:54
PLS HELP ME IM.BAD AT THIS
Answer:28.8
Step-by-step explanation:
!!!!really need help!!!!Polygon ABCDEF is rotated 90°, reflected across the line y = -x, and then translated up
3 units and to the left 2 units to produce the image polygon A'B'C'D'EF'. What are the
coordinates of D' ?
Answer:
D'(-4, 1)
Step-by-step explanation:
Polygon ABCDEF is transformed by number of steps given in the question.
We have to find the coordinates of point D'.
Coordinates of point D → (2, -2)
Step - 1,
Polygon rotated 90° counterclockwise about the origin,
Rule for this rotation,
(x, y) → (-y, x)
Coordinates of image E after rotation,
D(2, -2) → E(2, 2)
Step - 2,
Point E then reflected across the line y = -x,
Rule for the reflection,
(x, y) → (-y, -x)
Image of E after reflection will be,
E(2, 2) → F(-2, -2)
Step -3,
Then point F was translated up by 3 units and 2 units left,
Rule for the translation,
(x, y) → (x -2, y + 3)
Image of F will be point D',
F(-2, -2) → D'(-4, 1)
Hurry will mark!!! María determined that these expressions are equivalent expressions using the values of x = 3 and x=7. Which
statements are true? Check all that apply.
5+3x-2 and x + 2(x+1)+1
The expressions are only equivalent when evaluated with odd values.
The expressions are only equivalent for x = 3 and X= 7.
The expressions should have been evaluated with one odd value and one even value.
The expressions have equivalent values when X = 6.
When x=0, the first expression has a value of 3 and the second expression has a value of 4.
The expressions have equivalent values for any value of x.
When x= 10, both expressions have a value of 33.
Answer: D, F, G / 4, 6, 7
Step-by-step explanation:
We have the following equations:
5 + 3x - 2 and x + 2(x+1) + 1
Before checking the statements. Let's solve the syste of equations:
5 + 3x - 2 = x + 2(x+1) + 1
5 + 3x - 2 = x + 2x+2 + 1
3x + 3 = 3x + 3
Both equations are equivalent. Now, let's judge the statements:
1. The expressions are only equivalent when evaluated with odd values.
Given that the both expression are the same, the expressions are equivalent for ALL values.
Therefore, the statement IS FALSE ❌
2. The expressions are only equivalent for x=3 and x=7.
Given that the both expression are the same, the expressions are equivalent for ALL values, not only x=3 and x=7.
Therefore, the statement IS FALSE ❌
3. The expressions should have been evaluated with one odd value and one even value.
If two expressions are equivalent, they should be equivalent for ALL values. Sometimes, evaluating just one odd and one even value isn't enough. That's why the best approach is to solve the system of equations.
Therefore, the statement IS FALSE ❌
4. The expressions have equivalent values when x=6.
Given that the both expression are the same, the expressions are equivalent for x=6 (And all the real values too).
Therefore, the statement IS TRUE ✅
5. When x=0, the first expression has a value of 3 and the second expression has a value of 4.
Given that BOTH expressions are equvalent, they have the same value when x=0, which is 3.
Therefore, the statement IS FALSE ❌
6. The expressions have equivalent values for any value of x.
Given that the both expression are the same, the expressions are equivalent for ALL values of x.
Therefore, the statement IS TRUE ✅
7. When x=10, both expressions have a value of 33
Given that the both expression are the same, the expressions are equivalent for ALL values of x. That's why when x=0, both expressions have a value of 33.
Therefore, the statement IS TRUE ✅
please hurry!
Part A: Determine the average rate of change over the interval [B, C] .
O 6
O 24
O 96
O 384
Part B: Determine the average rate of change over the interval [D, E] .
O 6
O 24
O 96
O 384
Part C: The average rate of change is
O larger over the interval [D,E] than [B,C].
O smaller over the interval [D,E] than [B,C].
O the same over the interval [D,E] than [B,C].
Answer:
Part A: 24
Part b: 384
Part c: larger over the interval
Step-by-step explanation:
Tara bought a 1.8-acre lot. She is going to have to sod put on 0.6 of the lot.
Which grids show the correct shading to model the multiplication?
I think c???? because yeah dsfiesnfgb
Answer:
i have that same Question
Step-by-step explanation:
Victor has a part time job. He saves 18% of his monthly income. Victor makes $215 a month. How much money does he save a month?
You pay $144 for 12 pounds of mangoes. How much does it cost for 1 pound?
Answer:
$12
Step-by-step explanation:
$144 = 12 mangoes
Divide both sides by 12
$12 = 1 mango
The tables represent the functions f(x) and g(x).
A table showing g(x) equals 2 x plus 15 with 2 columns and 7 rows. The first column, x, has the entries, negative 15, negative 12, negative 9, negative 6, negative 3, 0. The second column, g(x), has the entries, negative 15, blank, blank, blank, blank, 15.
Which input value produces the same output value for the two functions?
Hint, because the tables are incomplete, you will need to solve by setting the equations equal to each other.
A. x = -12
B. x = -9
C. x = -6
D. x = -3
Answer:
c
Step-by-step explanation:
Answer:
B) x=-9
Step-by-step explanation:
Given that
R
=
6
x
+
5
y
Find
y
when
x
=
7
and
R
=
18
Answer:
[tex]\frac{24}{5}[/tex]
Step-by-step explanation:
Answer:
y = - 24/5
Step-by-step explanation:
3. Milo's dog weighs 18.25 pounds. Kristen's dog weighs 2.5 pounds less than Milo's dog. How much does Kristen's dog weigh? (A) 13.25 pounds B 15.75 pounds © 16.75 pounds D 20.75 pounds
Answer:
(B). 15.75
Step-by-step explanation:
If Kristens dog weighs 2.5 pounds less, then you just have to subrtact 2.5 from 18.25
The answer is B. 15.75 pounds. Kristen's dog weighs 2.5 pounds less than Milo's dog which is 18.25. So, all you have to do is subtract 2.5 from 18.25. 18.25 - 2.5 = 15.75.
3.
Stacey has a part-time job.
She earns £8 an hour.
She wants to buy a new smartphone costing £220.
How many hours does she need to work to earn enough to buy it?
Answer:
28 hours
Step-by-step explanation:
Divide the total cost of the new smartphone by how much Stacey earns per hour.
220 / 8 = 27.5
Round the quotient up to the nearest whole number to get your answer. We do this because Stacey would not get paid for only working part of an hour.
28
Which relation is a function?
The table shows the height of water in a pool as it is being filled. The slope of the line through the points is 2. Which statement describes how the slope relates to the height of the water in the pool? Height of Water in a Pool Time (min) 2 4 6 8 10 Height (in.) 8. R12 16 20 24 O The height of the water increases 2 inches per minute. The height of the water decreases 2 inches per minute. The height of the water was 2 inches before any water was added. O The height of the water will be 2 inches when the pool is filled.
Answer:
Step-by-step explanation:
Answer:
A) The height of the water increases 2 inches per minute.
Step-by-step explanation:
Slope is the rate of change of height
m = (16 - 12)/(4 - 2) = 4/2 = 2
2 inch per min
Positive slope implies increase
11 x (9-3)
I need HELP NOW U WILL GET BRANLIEST
Answer:
your answer is 96
Step-by-step explanation:
hope this helps
Answer:
66
Step-by-step explanation:
9-3=6
6 x 11=66 :))))
Consider the recursively defined function below
Create the first five terms of the sequence defines by the given function
Answer:
So, the first five terms of the sequence defined by the given recursive function are shown below.
F(1) 0.75 f(2) 1.1 F(3) 1.45 F(4) 1.8 f(5) 2.15
written on plato
Step-by-step explanation:
If the coordinates of the vertices of two triangles are given, it is possible to check SSS similarity for these triangles.
true or false
Answer:
I think so it is false
Hope it helps you
1)) Is 6.618 an irrational number?
yes
no
Submit
Answer:
No
Step-by-step explanation:
An irrational number cannot be represented in the form a/b while a and b are integers and b isn't zero. We can write this number in this form:
6618/1000.
Since we can, it isn't irrational, it is actually rational
Hope this helps!
Answer:
Rational
Step-by-step explanation:
A rational number is any integer, fraction, terminating decimal, or repeating decimal.
So, the answer to this question would be no. This number is not irrational.
Can someone look at this please. Thank you
Find the distance between (1, 0) and (9, 15).
Answer:
[tex]\mathrm{Distance\:between\:}\left(1,\:0\right)\mathrm{\:and\:}\left(9,\:15\right)=\:17[/tex]
Step-by-step explanation:
Given the points
(1, 0)(9, 15)[tex]\mathrm{Compute\:the\:distance\:between\:}\left(x_1,\:y_1\right),\:\left(x_2,\:y_2\right):\quad \sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}[/tex]
[tex]\mathrm{The\:distance\:between\:}\left(1,\:0\right)\mathrm{\:and\:}\left(9,\:15\right)\mathrm{\:is\:}[/tex]
[tex]=\sqrt{\left(9-1\right)^2+\left(15-0\right)^2}[/tex]
[tex]=\sqrt{8^2+\left(15-0\right)^2}[/tex]
[tex]=\sqrt{8^2+15^2}[/tex]
[tex]=\sqrt{64+225}[/tex]
[tex]=\sqrt{289}[/tex]
[tex]=\sqrt{17^2}[/tex]
[tex]=17[/tex] ∵ [tex]\mathrm{Apply\:radical\:rule}:\quad \sqrt[n]{a^n}=a[/tex]
Therefore,
[tex]\mathrm{Distance\:between\:}\left(1,\:0\right)\mathrm{\:and\:}\left(9,\:15\right)=\:17[/tex]
Solve for x
-2x+8y=20
Answer:
X=-6
Step-by-step explanation:
-2 times -6= 12 12+8=20
Use the order of operations to simplify 4(3.5-1.5)-1/2
Answer:
7.5
Step-by-step explanation:
4*3.5 = 14
4*-1.5 = -6
14 + -6 = 8
8-1/2 = 7.5
Answer:
7.5
Step-by-step explanation:
Hurry pleaseeee taking a test Which expression is equivalent to 30°? Inverse of cosine (StartFraction StartRoot 3 EndRoot Over 2 EndFraction) Inverse of sine (StartFraction StartRoot 3 EndRoot Over 2 EndFraction) Sine (StartFraction StartRoot 3 EndRoot Over 2 EndFraction) Cosine (StartFraction StartRoot 3 EndRoot Over 2 EndFraction)
Answer:
Inverse of cosine (StartFraction StartRoot 3 EndRoot Over 2 EndFraction)
Step-by-step explanation:
According to trigonometry identity;
Cos 30° = √3/2
To get the expression equivalent to 30°, we will take the inverse of both sides as shown;
Cos^-1(cos 30°) = cos^-1(√3/2)
The arccos will cancel out the cos on the left hand side of the equation to have;
30° = cos^-1(√3/2)
Hence 30° is equivalent to inverse of cosine of √3/2 or Inverse of cosine (StartFraction StartRoot 3 EndRoot Over 2 EndFraction)
Answer:
the Answer is A
Step-by-step explanation:
Edge 2020
Rewrite in simplest terms: -(2c + 8) + 8c
Answer:
[tex]6c-8[/tex]
Step-by-step explanation:
We have:
[tex]-(2c+8)+8c=[/tex]
[tex]-2c-8+8c=\\[/tex]
[tex]6c - 8[/tex]