Answer:
2 and 13
Step-by-step explanation:
2+13=15
and
2x13=26
[tex]\large \mathfrak{Solution : }[/tex]
let the numbers be x and y
now, we know that
x + y = 15 - Equation (1)xy = 26 - Equation (2)by squaring Equation (1) :
(x + y)² = 15²x² + y² + 2xy = 225x² + y² - 2xy + 4xy = 225(x - y)² + (4 × 26) = 225(x - y)² + 104 = 225(x - y)² = 225 - 104(x - y)² = 121x - y = 11 x = 11 + y - Equation (3)
Plugging the value of x from Equation (3) into Equation (1)
x + y = 1511 + y + y = 152y = 15 - 11y = 4 ÷ 2y = 2 - Equation (4)now, let's plug the value of y from Equation (4) into Equation (3) :
x = 11 + yx = 11 + 2x = 13I 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
Kirby practiced saxophone 2 times during
the week for 1 1/2
hours. How many hours
during the week did he practice?
Answer:3
Step-by-step explanation:
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]
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
Help me solve this equation and explain how you got the answer! I’ll give you brainliest
Help for brainliest plz
Answer:
marke me as brainly please
-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!
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
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.
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]
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....
Can someone please help me
Answer:
(13,2)
plss mark me brainliesttt
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
The sum of twice a number and half the number is 10.
help pls :"
Answer:
4
Step-by-step explanation:
Let x = the number
2x + (1/2)x = 10
(5/2)x = 10 Multiply both sides by 2/5
x = 4
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!
A cylinder has a volume of 100cm and a radius
of 5 cm. What is its height in centimeters? Leave
the answer in terms of .
Answer:
1.27cm
Step-by-step explanation:
Volume(v) =100 cm
Radius(r) =5cm
Height(h) =?
Now,
Volume of cylinder (v) =¶r^2h
100 =22/7*5*5*h
100=78.57h
H=100/78.57
H=1.27cm
Height of cylinder is 1.27cm
Graph y - 4x + 3 = 0 and {(x , y ): x ≤ 1}. Click on the graph until the correct graph appears.
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.
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
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
x
---- = 60
-9
Solving for "x".
[tex]\large\bf\red{ \longrightarrow} \rm \: \frac{x}{ - 9 \: \: \: } \: = \: 60 \\ [/tex]
[tex]\large\bf\red{ \longrightarrow} \rm \:x \: = \: - 9 \: \times \: 60[/tex]
[tex]\large\bf\red{ \longrightarrow} \rm \:x \: = \: - 540[/tex]
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
I need some help on 9 and 10
Answer:
question 9
92/11 or 8.36
Step-by-step explanation:
angle on straight line is 180
:. 10x+1 + 12x-5 = 180
collect like terms
10x+12x = 180+5-1
22x = 184
divide both sides by the coefficient of x
22x/22 = 180/22
:. x = 180/22(to d lowest form= 92/11)
or 8.36
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.
Match the solution set given in inequality with the best solution set given in interval notation
There you go
I hope this help you
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
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
۔
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
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
