Is this correct or not? Please let me know
Answer:
No it is not correct. Jean had originally $208
Step-by-step explanation:
94 x 2 = 188
188 + 20 = 208
4. Tabatha is dining out at Mandee's and decides to get an order of curly fries.
chicken fingers, and a coca-cola. The total cost of the food with sales tax came to
$18.61. If Tabatha decides to give the cashier a 20% gratuity (tip), what does ber
total bill come to?
Answer:
$22.33
Step-by-step explanation:
A 20% tip would be 0.20. Multiply the cost by 0.20 to get the tip amount or multiply the cost by 1.20 to get the total amount including tip.
subtotal --> $18.61
tip --> $3.72
18.61 x 0.20 = 3.72
total --> $22.33
Victor wants to see if positively greeting children as they enter the classroom reduces problem behaviors. He randomly assigns 10 second- and third-grade classrooms to one of two conditions: classes where the teacher greets each student by name and with a smile as they enter the classroom and classes where the teacher does not greet students. During a 4-week period, he asks teachers to track the number of problem behaviors per classroom on a daily basis via a strict protocol he has designed. What is the control group
The control group in the experiment are the classes where the teacher does not greet the students
A control group in an experiment is made up of groups of people that do not receive the experimental treatment.
The purpose of a control group is to allow the researcher study one variable at a time.
Victor is conducting an experiment on if positively greeting children as they enter the classroom reduces problem behaviours.
The experimental treatment here is positively greeting the students.
The group that do not receive this experimental treatment are referred to as the control group.
At the end of the experiment, Victor would compare the behaviours of the students in the control group with the behaviour of those who were part of the experimental group to see if greeting reduced problem behaviours.
To learn more about the control groups, please check : https://brainly.com/question/17602354?referrer=searchResults
find the spuare root of the following by division method.
418609
49729
55696
240100
10329796
Answer:
1 =647
2=223
3=236
4=490
5=3214
۔
What is the solution to the following system?
X+2y+z=9
X-y+3z=13
2z=10
Answer: x = 0; y = 2; z = 5
Step-by-step explanation:
x+2y+z=9
x-y+3z=13
2z=10
==
Start with the last equation: 2z = 10, therefore z = 5 [easy]
Let's rewrite the second equation with 1) z=5, and 2) rearrange to find x:
x-y+3z = 13
x - y +3*5 = 13
x = y-2
Now use the values for x [(y-2)] and y [5] in the first equation:
X+2y+z=9
(y-2) +2y + 5 = 9
3y +3 = 9
3y = 6
y = 2
Now that we have y [2] and z [5], let's use the first equation to solve for x:
x+2y+z=9
x + 4 + 5 = 9
x + 9 = 9
x = 0
====
Try the three values (x=0, y=2, and z=5) in any of the formulas. The result should/will equal the number shown.
cuanto es (((5+4)+(7-3))(2+8))=
Answer:
49Step-by-step explanation:
[(5 + 4) + (7 - 3) × (2 + 8)] = ?[9 + 4 × 10] = ?9 + 40 = ?49[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]
helpppppppppp it’s multiple choice questions I’ll brainlist!
Answer:#1 is D
Step-by-step explanation:angles must equal 180 and yk that the angle under e is 39 so 180-39 =141
Is the following statement true or false?
The intersection of two planes carl be a point.
true
false
Submit
False.
It could be a plane, a line, or no intersection at all. But it can't be a point.
Simplify (4+2i)(4-2i)
A. 20
B. 12
C. 16-4i
D. 16+4i
[tex](a+b)(a-b)=a^2-b^2\\\\(4+2i)(4-2i)=4^2-(2i)^2=\boxed{16-4i^2}[/tex]
Answer:
A
Step-by-step explanation:
We want to simplify the expression:
[tex](4 + 2i)(4- 2i)[/tex]
Notice that this is the difference of two squares. That is:
[tex](a +b)(a-b) = a^2 - b^2[/tex]
We can let a = 4 and b = 2i. Hence:
[tex](4+2i)(4-2i) = (4)^2 - (2i)^2[/tex]
Simplify:
[tex]= (16) - (4i^2) \\ \\ = 16 - (-4) \\ \\ = 20[/tex]
(Note that i² = -1.)
In conclusion, our answer is A.
Help for brainliest plz
Answer:
marke me as brainly please
Help me solve this equation and explain how you got the answer! I’ll give you brainliest
Find the perimeter. Simplify your answer.
3x+7
3x+7
2x-3
2(3x + 7) + (2x - 3) =
= 6x + 14 + 2x - 3 =
= 6x + 2x + 14 - 3 = 8x + 11 ← the end
Can someone please help me
Answer:
(13,2)
plss mark me brainliesttt
FIRST ONE TO AWNSER GETS BRAINLYISTAND 50 POINTS
AND MY LOVE !!!!!!!!!!
Answer:
Answer: c
Step-by-step explanation:
A. ❎
[tex]16 +( 4 \times {5}^{2} ) \\ = 16 + 100 \\ = 116[/tex]
B. ❎
[tex]16 +( 4 \times {5}^{2} ) \\ = 16 \times 100\\ = 116[/tex]
C. ✔
[tex]16 + (4 \times {5}^{2} ) \\ = 16 \times 100\\ = 116[/tex]
D. ❎
[tex]16 + (4 \times {5}^{2} ) \\ = 16 + (4 \times 25) \\ = 16 + 100 \\ = 116[/tex]
Select whether each number in the far left column is between 1 and 1.5, 1.5 and 2, or 2 and 2.5
Step-by-step explanation:
[tex] \sqrt{5} = 2.23[/tex]
[tex] \frac{\pi}{3} = 1.04[/tex]
[tex] \sqrt{3} = 1.73[/tex]
Match the solution set given in inequality with the best solution set given in interval notation
There you go
I hope this help you
two numbers squared plus five
Answer:
[tex]2^{2}[/tex]+[tex]3^{2}[/tex]+5
4+9+5
18
I need help lol so if you can help plz do
Answer:
B
Step-by-step explanation:
Let me know if I’m correct
hope this helps
Help me with this notation math.
[tex]\\ \sf\longmapsto \left(\dfrac{3}{4}\right)^2\times \left(\dfrac{1}{4}\right)^{-2}[/tex]
[tex]\\ \sf\longmapsto \dfrac{3^2}{4^2}\times 4^2[/tex]
[tex]\\ \sf\longmapsto 3^2[/tex]
[tex]\\ \sf\longmapsto 9[/tex]
Find the slope of the line that passes
through each pair of points.
a. A(1,3), B(4,7)
b. C(3,5), D(2,6)
does anyone know this?
Answer:
a) [tex] \frac{4}{3} [/tex]
b) -1
Step-by-step explanation:
[tex]\boxed{slope = \frac{y1 - y2}{x1 - x2} }[/tex]
where (x₁, y₁) is the first point and (x₂, y₂) is the second point
6a) Slope
[tex] = \frac{7 - 3}{4 - 1} [/tex]
[tex] = \frac{4}{ 3} [/tex]
6b) Slope
[tex] = \frac{6 - 5}{2 - 3} [/tex]
[tex] = \frac{1}{ - 1} [/tex]
= -1
which of the following is the best estimate of the square root of 90
Answer:
9.5
Step-by-step explanation:
9.5x9.5= 90.25 which is the closest you can get without going into further decimals
A scientist needs 10 liters of 20% acid solution for an experiment, but she has only a 5% solution and a 40% solution. To the nearest tenth of a liter, about how many liters of the 5% and the 40% solutions should she mix to get the solution she needs?
Answer:
4.3L of the 40% solution and 5.7L of the 5% solution
Step-by-step explanation:
hope this helps
the hcf of 90 and x is 18. the lcm of 90 and x is 540. find the value of x.
The value of x is 108.
What is HCF?The highest common factor is defined as the set of numbers with the highest common multiple. The highest positive integer with more than one factor in the set is HCF.
What are Arithmetic operations?Arithmetic operations can also be specified by adding, subtracting, dividing, and multiplying built-in functions.
* Multiplication operation: Multiplies values on either side of the operator
For example 4*2 = 8
We have been given that the HCF of 90 and x is 18.
And the LCM of 90 and x is 540.
We have to determine the value of x.
Since the product of two numbers equals the product of their HCF and LCM.
So 90 × x= HCF × LCM
Substitute the values of given data,
⇒ 90×x = 18×540
⇒ 90×x = 9720
⇒ x = 9720/90
⇒ x = 108
Hence, the value of x is 108.
Learn more about the highest common factor here:
https://brainly.in/question/3803222
#SPJ2
Manuel estimates that 2/3 of a pizza is left. Stephen estimates that 3/4 is left. They are
going to compromise for a joint estimate by using the number halfway between their 2
estimates. What is their joint estimate?
Answer:
it is 2.5/3.5
Subtract. Write your answer in simplest form.
4 5/8 - 1 1/8 =
PLEASE HELP AND EXPLAIN IF YOU DO I WILL ASAP GIVE YOU BRAINLIEST
Answer:
I HOPE IT WILL HELP YOU....
What are the coordinates of the midpoint segment joining the points A(-3,-4) and B(4,2)
Answer:
Step-by-step explanation:
x1 + x2 divided by 2
y1 + y2 divided by 2
-3 + 4 is 1/2
-4 + 4 is 0
(0.5,0)
i could be wrong but i did it in my head , but the equation is right . just do that in order
Answer:
( 0.5, - 1 )
Step-by-step explanation:
So here is the equation:
x2 + x1 / 2 For the x coordinate
y2 + y1 / 2 For the y coordinate
x2 is 4 and x 1 is -3 whilst y2 is 2 and y1 is -4.
Thus:
4 + -3 / 2 = 0.5 x coordinate
2 + -4 / 2 = -1 y coordinate
So it becomes (0.5, -1)
HOPE THIS HELPED
Graph y - 4x + 3 = 0 and {(x , y ): x ≤ 1}. Click on the graph until the correct graph appears.
A farmer has 180 Bushels of apples to sell at his roadside stand. He sells an average of 14 7/8 bushels each day. Represent the total change in the number of Bushels he has for sale after 5 days.
Please help me!
-3(2+ k)- 6k = 6+ 3k
Answer:
solve for k, k=-1
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable
Answer:
k=-1
Step-by-step explanation:
First step: Distribute
Result: -6-3k-6k=6+3k
Second step: Combine like terms
Result: -6-9k=6+3k
Third step: Add 6 to both sides
Result: -9k=12+3k
Fourth step: Subtract 3k from both sides
Result: -12k=12
Final step: Divide by -12 to both sides
Result/Answer: k=-1
Side note:
Hopefully this helps!
Please help.How do I find the length of x?
Since the area of B is 9 times the area of A, we know that the sides of B are √9= 3 times the length of the sides of A.
That's how.
