Answer:
2n + 11
Step-by-step explanation:
You have twice an unknown number n, and you're going to want to have 11 more than that. So you will have 2 x n + 11 or 2n + 11.
help please ill give extra to brainliest
13d +8= -1
d=?
Answer:
d = (-9/13)
Step-by-step explanation:
13d + 8 = -1
-8 -8
13d = -9
÷13 ÷13
d = ( -9/ 13 )
I hope this helps!
Answer:
d = -9/13
Step-by-step explanation:
13d +8= -1
Subtract 8 from both side
13d +8-8= -1-8
13d = -9
Divide 13 from both side
13d/13 = -9/13
d = -9/13
Explain or show that the point (5, -4) is a solution to this system of equations:
3x - 2y = 23
2x + y = 6
Answer:
see explanation
Step-by-step explanation:
If (5, - 4) is a solution to the system then both equations will be true when (5, - 4) is substituted into them.
Substitute (5, - 4) into the left side of the equations and if equal to the right side then (5, - 4) is a solution.
3(5) - 2(- 4) = 15 + 8 = 23 = right side
2(5) + (- 4) = 10 - 4 = 6 = right side
Then (5, - 4) is a solution to the system of equations.
or by solving
3x - 2y = 23 → (1)
2x + y = 6 → (2)
Multiplying (2) by 2 and adding to (1) will eliminate the y- term
4x + 2y = 12 → (3)
Add (1) and (3) term by term to eliminate y, that is
7x = 35 ( divide both sides by 7 )
x = 5
Substitute x = 5 into either of the 2 equations and solve for y
Substituting into (2)
2(5) + y = 6
10 + y = 6 ( subtract 10 from both sides )
y = - 4
Solution is (5, - 4 )
Using the concept of simultaneous equation, the solution to the system of equations is (5, - 4)
Given the system of linear equations :
3x - 2y = 23 _______(1)2x + y = 6 ________ (2)From (2) :
y = 6 - 2x ______(3)Substitute (3) into (1)
3x - 2(6 - 2x) = 23
3x - 12 + 4x = 23
7x = 23 + 12
7x = 35
Divide both sides by 7 to isolate x
x = 35 / 7
x = 5
From (3)
y = 6 - 2(5)
y = 6 - 10
y = -4
Therefore, the solution to the system of equation is (5, - 4)
Learn more : https://brainly.com/question/15165519
-2/3 divided by 1/2
I need help asap!!!!
Answer:
Exact form: -4/3
Decimal form: -1.3
Mixed number form: -1 1/3
Step-by-step explanation:
Answer:
3/4
Step-by-step explanation:
1/2 ÷ 2/3
1/2 * 3/2
1 * 3/ 2 * 2
3/4
Please mark me the brainliest!?!
HELP PLEASE !!
Write an inequality that represents the graph.
Answer:
y > x + 2
Step-by-step explanation:
positive slope so positive x it translated 2 units UP the yaxis so +2 it's a DASHED line so that means it's the regular signs if it was a SOLID line u would have to use the less than equal too signs the shading is ABOVE the line so it's going to be a greater than sign !!Can someone PLEASE show me how to do this! If f (x) = x^2 + 3x +2/ x +3, then f’ (x) =
Answer:
c
Step-by-step explanation:
The equation =( denominater * derivative of numerator - numerator * derivative of denominator) / denominator ^2
so the qstn is (x^2 + 3x +2) / (x+3)
apply the values as the above eqtn states
ie,[ (x+3) * derivative of (x^2 +3x + 2)] - [( x^2 +3x + 2) *derivative of (x+3)] /
(x+3)^2
derivative of numerator, (x^2 +3x + 2) is 2x+3
" of denominator, (x+3) is 1
so we get
[(x+3)* (2x + 3 ) - (x^2 +3x + 2) *1 ] / (x+3)^2
open the brackets
[ 2x^2 + 3x + 6x + 9 - x^2 +3x + 2 ] / (x+3)^2
subtract similar terms and we get the final answer in option c
1
2
3
TIME REMAINING
56:01
A triangle has side lengths measuring 3x cm, 7x cm, and h cm. Which expression describes the possible values of h,
in cm?
4x
O 10x < < 4x
0 h = 4x
Oh = 10x
Save and Exit
Next
Submit
Answer:
40 because you multiply 4x10
What is the mode for the month?
Answer:the answer would be 20
Step-by-step explanation:
because it is use the most
I’ll give Brainly…!!!!
Answer:
AA
Step-by-step explanation:
ΔCSR and ΔMDR share ∠CRS
Since lines [tex]n[/tex] and [tex]k[/tex] are parallel, ∠C ≅ ∠M and ∠S ≅ ∠D. These are corresponding angles.
Either of these sets of angles could be used along with ∠CSR to prove that ΔCSR and ΔMDR are similar because of AA.
I appreciate all answers I like
What is 3,00 +1
Answer:
3,000 + 1 = 3,001
Step-by-step explanation:
Just add it vertically.
3,000
+ 1
3,001
Answer:
3,000+1=3,001
Step-by-step explanation:
Just simple logic
can you help me? please
Answer:
C, $769 per week
Step-by-step explanation:
There are 52 weeks in a year. To find the answer to this question, divide $40,000 by 52 to get $769.230769231, rounded to $769.
State the x value of the x intercept describe by the following
linear equation: (-3x-2y = 9
Answer:
x=-3
Step-by-step explanation:
-3x-2y=9
-3x-2(0)=9
-3x-0=9
-3x=9
x=-3
Cani get help please show work
Answer:
1020 cm²
Step-by-step explanation:
The area of a trapezoid is given by:
Area=(big base+small base)/2 ×h
So,
Area=(TR+PA)/2 ×h
Area=(54+31)/2 ×24
Area=85/2 ×24
Area=42.5×24
Area=1020 cm² or Area=0.102 m²
True or False? When Liesl used the quadratic formula to solve a quadratic equation, she noticed the value of the discriminant was a perfect square. She immediately determined that she could have factored the quadratic equation she was solving.
Liesl is correct, if the discriminant is a perfect square, then we can factorize the quadratic equation.
Is the statement true or false?For a quadratic equation:
y = a*x^2 + b*x + c
The discriminant is:
D = b^2 - 4ab
Notice that for the equation:
0 = a*x^2 + b*x + c
The solutions are given by:
[tex]x = \frac{-b \pm \sqrt{D}}{2a}[/tex]
If D is a perfect square, then we know that the square root has solutions, so there are two values:
[tex]x_1 = \frac{-b + \sqrt{D}}{2a}\\\\x_2 = \frac{-b - \sqrt{D}}{2a}[/tex]
Now with these solutions, we can factorize our equation as:
[tex]y = a*(x - ( \frac{-b + \sqrt{D}}{2a}))*(x - ( \frac{-b - \sqrt{D}}{2a}))[/tex]
So Liesl is correct, if the discriminant is a perfect square, we can factorize the quadratic equation.
If you want to learn more about factorization, you can read:
https://brainly.com/question/11579257
You have a bull's eye where each section is 2" wide as shown in the diagram. Find the following probabilities.
Answer:
a) 1/16
b) 7/16
Step-by-step explanation:
a) The area of the outside circle is π (8")² = 64π in².
The area of the center circle is π (2")² = 4π in².
So the probability is (4π / 64π) = 1/16.
b) The area of the outside strip is π [(8")² − (6")²] = 28π in².
So the probability is (28π / 64π) = 7/16.
Ohama is landing a plane on the runway. He's trying to decide where he should deploy the plane's landing gear so that the plane comes to a stop exactly at the end of the runway. The runway is 600 yards long, and the plane will travel half the distance with the landing gear than without the landing gear. Where should he deploy the landing gear ?
Answer:
Let's define:
A = distance traveled before deploying the landing gear
B = distance traveled after deploying the landing gear.
We must have that the sum of those two distances must be equal to 600 yards.
A + B = 600 yd.
And we know that:
" the plane will travel half the distance with the landing gear than without the landing gear."
Then we have that:
B = A/2.
Now we can replace this last equation in the first one:
A + B = 600yd
A + A/2 = 600yd.
(3/2)*A = 600yd.
A = (2/3)*600yd = 400yd.
Ohama should deploy the landing gear 400 yd into the runway.
Find the midpoint of the line that contains the endpoints (5,2) and (-4,-3)
Answer:4,2
Step-by-step explanation: is u divide both side with 2 that will be your answer
Answer:
Your answer is: Midpoint = (0.5, -0.5)
Step-by-step explanation:
(xa+xb/2 , ya+yb/2)
Plug the points ---> (5,2)(-4,-3)
= (1/2 , -1/2)
In decimal form it would be: (0.5,-0.5)
Hope this helped : )
A group of people dined at a restaurant. The price of shared appetizers was $28, and the average price of each person’s entrée was $12. If the total amount of the bill, including a 20% tip, was $120, how many people were in the group?
Answer:
6 people
Step-by-step explanation:
Classify the marked triangle in the object by its angles and by its sides
Answer:
a isosceles triangle because it has two sides that are paarrelell
Step-by-step explanation:
There were 4 kids. each had candy all together they had 120 pieces of candy.
if one kid had five and another had 19 how many candies did the other two have.
(I am very confused rn!!) This is the question it makes not much sense! I'm sorry:( my math class isn't great :/
Answer:
The other 2 had 96 pieces of candy combined.
Step-by-step explanation:
5 + 19 = 24
so, 120 candies - 24candies = 96 candies left
The sum of two numbers is 100,the first number is 12 less than the second number? What equation would represent this equation
Step-by-step explanation:
Let the first number be x and the second y
x+y=100
(x-12)+y
just the answer please
Answer:
B.) x = 16
Step-by-step explanation:
HELP! WILL MARK BRAINLIEST!! Suppose for two real numbers x and y, both the sum x+y and product xy are integers. Either prove x and y must be rational numbers, or find a counterexample.
Step-by-step explanation:
A man by the name of Luigi Fonti wrote this. I hope it can guide you, as it did for me! "The set of rational numbers is closed for all the four operations, so x+y, x-y, x*y and x/y are rational too. And it is easy to demonstrate. A rational number can be expressed as a fraction of two integers. So, x can be expressed as a/b and y as c/d. Hence x+y = a/b + c/d = (ad+bc)/bd, which, as fraction of two integers, is rational."
solve multi-step equations iready
-5m=3
m=?
Answer:
m = -3/5
Step-by-step explanation:
-5m = 3
Divide each side by -5
-5m/-5 = 3/-5
m = -3/5
An angle between 0 and 2π that is coterminal with 960° is
Answer:
4 pi/3
Step-by-step explanation:
960 degrees in standard position is the same thing as 960-360 = 600 degrees in standard position because rotating the second line 360 degrees just brings it back to where it started.
Do it again to get 600 - 360 = 240
240 degrees would end up in the same spot as 600 degrees and 960 degrees, so they are all coterminal.
Convert 240 degrees to radians:
240 * pi/180 = 4pi/3.
A figure skater needs a total score of at least 90 to move on to the next round. The total score is the average of four judges’ scores. The first three judges’ scores were 83, 88, and 92. The figure skater made it to the next round.
What is the minimum score the fourth judge could have given?
Answer:
the skater needs to get a score of 97 [or more ]
Step-by-step explanation:
[ 83 + 88 + 92 + M ] / 4 ≥ 90 multiply both sides by 4
83 + 88 + 92 + M ≥ 360 simplify
263 + M ≥ 360 subtract 263 from both sides
M ≥ 97 → the skater needs to get a score of 97 [or more ]
Answer:97
Step-by-step explanation:
83+88+92+97=360
360/4=90
hello please answer need for homework
solve. |3(-2)-2(1)|+2
Answer:
3 ×-2 - (2×1) + 2
-6 - 2 + 2
= -6
Answer:
10
Step-by-step explanation:
[tex]| 3(-2)-2(1)|+2\\[/tex]
Solve inside the absolute value(Between the two lines).
[tex]|3(-2)-2(1)|+2\\|-6-2|+2\\|-8|+2\\8+2=10[/tex]
Quick Tip...
Anything between absolute values will result in positive form.
Such as -3=-3 but |-3|=3 or |-9+1|=|-8|=8 where positive over-rides(Not sure if I spelled that right) negative.
Or |4|=4.
A 9-pound bag of white rice costs $53.28. What is the price per ounce?
Answer:
per ounce is $5.92
Step-by-step explanation:
All you gotta do is 53.28 divided by 9 $5.92!
Mark me brainliest!!
1. Solve for x
if u help I'll give brain thing
Answer:
13
Step-by-step explanation:
Assuming that this is a right triangle, we can use the Pythagorean theorem.
[tex](length-of-leg-1)^2+(length-of-leg-2)^2 = (length-of-hypotenuse)^2\\15^2 + x^2 = (\sqrt{394} )^2\\225 + x^2 = 394\\x^2 = 169\\x = 13[/tex]
Hope that helped!
Explain what the equation
4h = -14 represents.
-4. Temperature dropping per hour
h , Number of hours
-14. Temperature after 'h' hours
What value of h makes the equation true?
What value of h makes the equation true
Answer:
value of h makes the equation true is -3.5
Step-by-step explanation:
=> 4h = -14
multiply both side by h
=> [tex] \frac{4h}{4} = \frac{ - 14}{4 } \\ [/tex]
=> [tex]h = \frac{ - 14}{4} [/tex]
divide -14 by 4
÷> h = - 3.5