Answer:
8n^2+7n+2/3
Step-by-step explanation:
combine like terms
5n+2n=7n
Answer: D on edg
Step-by-step explanation:
MATH HELP PLS!!! MARKING BRAINLIST!! MaTH
Answer:
11
Step-by-step explanation:
Answer:
s = 11Step-by-step explanation:
Choose the inequality that describes the following problem.
Mark wants to get at least a 90% for his marks in his science class. So far, he has
taken five 100-points tests, and he scored 460 points total. The final test is 150
points. What must he score to finish the class at his goal of at least 90%?
Answer:
[tex]x\geq 125[/tex]
Step-by-step explanation:
So first we have to find out the total number of points possibleSo he took 5 tests each with a max score of 100 points, so that's 500 points totalThe final test will be 150 points, so his whole grade is out of 500+150= 650 pointsHe has already scored 460 of those 650 pointsNow how much must he get in the least, on the last test in order to make 90%?Now we need to find what 90% of 650 points isso [tex]\frac{90}{100} *650=\frac{90*650}{100} =585points[/tex] Then we ask ourselves, how much must we add to 460, to get 585 points? 585-460= 125 pointsSo Mark needs to get either 125 points or more on the next test to make 90% or moreNow let's say the letter [tex]x[/tex] means whatever grade number Mark gets on his next testThis number must not be less than 125, so it must be either equal to or greater than 125 pointsSo [tex]x\geq 125[/tex]find f'(x) for f(x) = -8x2-5x-4
Thank you :)
Answer:
Step-by-step explanation:
Use the constant, constant multiple, and power rules for derivatives: bring down the exponent and multiply it by the constant, then replace it with an exponent that is 1 less than what it was. The derivative of
[tex]f(x)=-8x^2-5x-4[/tex] would look like this:
[tex]f'(x)=-8(2)x^1-5-0[/tex] simplifying to
[tex]f'(x)=-16x-5[/tex]
What’s the value for y?
Answer:
c -2
x=0
y=3x-2
=3×0-2
=0-2
=-2
What equation models the line that goes through the point (12,3) and has a slope of -1/3
Answer:
y= -1/3x+7
Step-by-step explanation:
4. Find the sum of the first eighteen terms of the arithmetic sequence whose nth
term is an = 15 + 8n.
a. 1438
b. 1638
c. 1836
d. 1783
Answer:
The sum of first eighteen terms of the arithmetic sequence is [tex]\mathbf{S_{18}=1638}[/tex]
Option B is correct option.
Step-by-step explanation:
We need to find the sum of the first eighteen terms of the arithmetic sequence whose nth term is an = 15 + 8n
The formula used to calculate sum of arithmetic sequence is: [tex]S_n=\frac{n}{2}(a_1+a_n)[/tex]
Finding a₁ by putting n=1
[tex]a_n=15+8n\\a_{1}=15+8(1)\\a_{1}=15+8\\a_{1}=23[/tex]
We have [tex]a_1=23[/tex]
Finding 18th term n=18
[tex]a_n=15+8n\\a_{18}=15+8(18)\\a_{18}=15+144\\a_{18}=159[/tex]
So, the sum of first eighteen terms of the arithmetic sequence is:
[tex]S_n=\frac{n}{2}(a_1+a_n)\\S_{18}=\frac{n}{2}(a_1+a_{18})\\S_{18}=\frac{18}{2}( 23+159)\\S_{18}=9(182)\\S_{18}=1638[/tex]
So, the sum of first eighteen terms of the arithmetic sequence is [tex]\mathbf{S_{18}=1638}[/tex]
Option B is correct option.
Iliana claims that she can construct a triangle from a 12-inch rod, a 36-inch rod, and a 39.4-inch rod. Which statement explains whether she is correct?
Iliana cannot construct a triangle because the sum of the two smaller sides will not be greater than the third side.
Iliana cannot construct a triangle because the sum of the two smaller sides will be greater than the third side.
Iliana will be able to construct a triangle because the sum of any two sides is greater than the third side.
Iliana will be able to construct a triangle because the sum of any two sides is less than the third side.
Answer:
C. Iliana will be able to construct a triangle because the sum of any two sides is greater than the third side.
Step-by-step explanation:
edge
Iliana will be able to construct a triangle because the sum of any two sides is greater than the third side.
How to determine the correct statement?The sides of the triangle are given as:
12, 36 and 39.4 inches
According to the triangle inequality theorem, the following must be true
x + y >= z
Where z is the longest side.
This means that:
12 + 36 >= 39.4
Evaluate the sum
48 >= 39.4
The above inequality is true
Hence, the true statement is (c)
Read more about triangle inequality theorem at:
https://brainly.com/question/9165828
#SPJ9
6. Find the slope of the given line. Write your answer in simplest form. 7
Answer
(7),(14)
Step-by-step explanation:
7
14
7x2=14
What is the sales tax on a $17,500 truck if the tax rate is 6%?
Answer:
$1050
Step-by-step explanation:
The sales tax on a $17,500 truck when the tax rate is 6% is $1050.
Feel free to give brainliest.
Have an outstanding day!
What is the domain and range of f(x)= |x-1| +2 ?
Help!!!!
Peter compra 8 limones por $6. Cada limón tiene el mismo precio.
¿Cuál es el costo de 1 limón?
Respuesta:
Cada limón cuesta $0.75
Explicación:
$6 ➗ 8 limones = $0.75 por limon
Espero que esto ayude. Lo siento si está mal. Eres amado y eres hermoso/guapo
-Bee
What is the volume of the prism, in cubic centimeters?
Answer:
the volume of the prism is 168 cubic centimeters.
Step-by-step explanation:
The volume of the prism is ;120 cubic centimeters.
What is rectangular prism ?Connect three rectangles edge to edge. To close their triangular mouths from both ends. That shape is called a triangular prism.
A rectangular prism has six faces (each one of these faces are rectangle), 8 vertices, and 12 edges.
Noted that this rectangular prism has 5 layers and the volume of one of these layers is 18 cubic centimeters ().
Considering that all these layers are equal, the volume of this prism can be calculated with:
Volume = Base area x length
= 1/2 x 6 x 4 x 10
= 240/2
= 120
Learn more about volumes of triangular prisms here:
https://brainly.com/question/16909441
#SPJ6
Anna is in charge of the alumni fundraiser for her alma mater. She is selling pre-sale tickets for $10 and at-the-door tickets for $25. The venue has the capacity to hold 400 people. The graph represents the number of tickets Anna needs to sell to offset her upfront costs and raise at least $5,000 for her school
What is the minimum number of pre-sale tickets she needs to sell to make her goal?
333
66
67
Answer:
67
Explanation:
Let us assume that Anna sells x number of pre-sale tickets and y number of at-the-door tickets.
Since, total capacity of the venue is 400, so we can write x + y = 400 ...... (1)
Now, given that each pre-sale ticket costs $10 and each at-the-door ticket costs $25, and the total funds she needs to raise is $5000
So, we can write 10x + 25y = 5000, ⇒ x + 2.5y = 500 .... (2)
Now, solving equations (1) and (2) we get,
(2.5 - 1)y = 500 - 400 = 100
⇒ 1.5y = 100
⇒ y = 66.67
Hence, from equation (1) we get, x = 400 - 66.67 = 333.33
Since Y can't be a fraction and it can not be < 66.67 (Otherwise the goal of $5000 can not be achieved)
So, the minimum number of at-the-door ticket she needs to sell to make her goal is 67.
The minimum number of pre-sale tickets she needs to sell to make her goal are 333.
What is a mathematical function, equation and expression? function : In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.equation : A mathematical equation is used to equate two expressions.Given is that Anna is in charge of the alumni fundraiser for her alma mater. She is selling pre-sale tickets for $10 and at-the-door tickets for $25. The venue has the capacity to hold 400 people.
We can write the equations representing the given situation as -
10x + 25y = 5000 ....... Eq{1}
x + y = 400 ....... Eq{2}
where [x] represents the number of people who bought the pre-sale tickets for $10 and [y] represents the number of peoples who bought at-the-door tickets.
So, we can write -
x = (400 - y)
So, we can write -
10(400 - y) + 25y = 5000
4000 - 10y + 25y = 5000
15y = 5000 - 4000
15y = 1000
y = 66.67
So, we get -
x = 400 - 66.67
x = 333.34
x = 333 {approx.}
Therefore, the minimum number of pre-sale tickets she needs to sell to make her goal are 333.
To solve more questions on functions, expressions and polynomials, visit the link below -
brainly.com/question/17421223
#SPJ2
X varies directly with the square of y, where x > 0, and y > 0. If x= 3 when y= 5, then what is the value of y when x = 48?
Answer: 50 i think
Step-by-step explanation:
Divide 405 in the ratio
4:11
Answer:
U
Step-by-step explanation:
Hahahahah
I need help with math
Answer:x=19 degrees
Step-by-step explanation:
Answer:
x = 19
Step-by-step explanation:
[tex]m\widehat{ XPZ} = 271\degree... (given) \\\\
m\widehat {XZ} =360\degree - 271\degree\\\\
m\widehat {XZ} =89\degree\\\\
m\angle XYZ = \frac{1}{2} \times (m\widehat{ XPZ} -m\widehat {XZ} ) \\\\
(4x +15)\degree = \frac{1}{2} \times(271\degree - 89\degree) \\\\
(4x +15)\degree = \frac{1}{2} \times 182\degree\\\\
(4x +15)\degree = 91\degree\\\\
4x + 15= 91\\\\
4x = 91-15\\\\
4x = 76\\\\
x = \frac{76}{4}\\\\
\huge \orange {\boxed {x = 19}}
[/tex]
p+1/p=7 then p^3+1/p^3
What has a fraction in its numerator, denominator, or both
Answer:
love i
Step-by-step explanation:
What is the opposite of
Please help
Answer:
-√3
.............
.........
-3x-8/4=10
What’s is value of x
Answer:
x= -16
Step-by-step explanation:
-3x-8/ 4 = 10
Here we can try to isolate x and so we have to first multiply 4 on each side.
-3x-8= 40
Then we can add the 8 to each side.
-3x= 48
Next, divide the -3 onto each side and we can get the answer!
x= -16
Find A and B if the graph of Ax + By = 12 passes through (2,1) and is parallel to the graph of 2x - 7y = 3
Answer:
24-21
Step-by-step explanation:
2×12=24 7×3=21 I started from 2×2 towards 2×12 when I got the answer and I started 7×1 towards 7×3
A cylinder and a cone have the same diameter: 8 inches. The height of the cylinder is 3 inches. The height of the cone is 18 inches. Use π = 3.14. What is the relationship between the volume of this cylinder and this cone? Explain your answer by determining the volume of each and comparing them. Show all your work. (10 points)
Answer:
The volume of the cylinder is 1.5 more that the one of the cone (i think)
Step-by-step explanation:
HOPE THIS HELPS (i am not sure it is correct)
PLZZ MARK BRAINLIEST if correct
Answer:
Step-by-step explanation:
A cylinder and a cone have the same diameter: 8 inches. The height of the cylinder is 3 inches. The height of the cone is 18 inches.
Use π = 3.14.
Find the slope of the line.
1/3
-1/3
3
-3
Answer:
if a line is like so it has a positive slope: / . IF a line is like this it has a negative: \
Therefore that leaves out -1/3 and -3
Either A or C is correct
From the y intercept (where the line intercepts the y axis), in this case 2, to the next point on the line (3, 3) it goes up 1 and over 3 to get to that point from the intercept. Therefore the slope is 1/3. (Rise/run)
1/3
Step-by-step explanation:
Select the expressions that are equivalent to 8(-3c).
-24c
C + 5
8 - 30
8(0 - 3)
ABCD is a parallelogram.
Solve for X. x/7 + 9/1= 15
Answer:x=42 i think not a 100
Step-by-step explanation:
Use the number line. Enter the integer value that point D represents.
Number line from -10 to 10 with 20 tick marks. Point D is 1 tick mark to the left of 5.
Given:
A number line from -10 to 10 with 20 tick marks.
Point D is 1 tick mark to the left of 5.
To find:
The integer value that represents point D.
Solution:
A number line from -10 to 10 with 20 tick marks. It means, each mark represents the integer values from -10 to 10.
We know that, as we move towards left on a number line the value decreases and as we move towards right the value increases.
Point D is 1 tick mark to the left of 5. It means, point D represents the integer value which is 1 less than 5.
[tex]5-1=4[/tex]
Therefore, point D represents the integer 4.
A 234 inch board is cut into two pieces. One piece is five times the length of the order. Find the length of the shorter piece.
Answer:
39 inches
Step-by-step explanation:
5x+x=234
6x=234
234/6=39
x=39 inches
Identify the error in this column:
(x2 + 3x + 18) = (x + 3)(x + 6)
Answer:
The error is found in the "3x" part of the equation.
Step-by-step explanation:
The rest of the equation is correct because x times x = x2. And 6 times 3 = 18. But x times 6 = 6x, and 3 times x = 3x, and 6x+3x=9x. 9x doesn't = 3x
Answer:
It should be 9x instead of 3x on the left-hand side of the equation.
Step-by-step explanation:
We can expand the equation (x+3)(x+6) to find out:
(x+3)(x+6) = x² + 6x + 3x + 18
We multiply x with x then x with 6.
Then, we multiply 3 with x and 3 with 6.
x² + 6x + 3x + 18 = x² + 9x + 18
0.7456 nearest thousandth
Answer:
0.746
Step-by-step explanation: