Answer:
x=(-1+i√119)/4
AND
x=(-1-i√119)/4
Step-by-step explanation:
[tex]2x^{2} +x+15=0[/tex]
step1: identify a,b and c from the equation.
a=2
b=1
c=15
step2: use the quadratic formula.
[tex]x=\frac{-b+or- √b^{2}-4ac }{2a}[/tex]
(sub a,b and c)
[tex]x=\frac{-1+or- √1^{2}-4*2*15 }{2*2}[/tex]
(simplify)
[tex]x=\frac{-1+or-√-119}{4}[/tex]
(write the two possible answers)
[tex]x=-\frac{1+i√119}{4}[/tex]
AND
[tex]x=-\frac{1-i√119}{4}[/tex]
A=1/2bh for h
Need help
Answer:
2A/b = h
Step-by-step explanation:
A=1/2bh
Multiply each side by 2
2A = 2 * 1/2 bh
2A = bh
Divide each side by b
2A/b = bh/b
2A/b = h
P(x)=5x^2-3x+7(x=1)
Pls
Answer:
9
Step-by-step explanation:
Given
p(x) = 5x² - 3x + 7 ← substitute x = 1
p(1) = 5(1)² - 3(1) + 7 = 5(1) - 3(1) + 7 = 5 - 3 + 7 = 9
Someone please help me
Answer:
Yes what is the question I would surely love to help u
Step-by-step explanation:
Read where it says Let C be
Thank you for helping me
Answer:
v=8
Step-by-step explanation:
Which one is correct?
Answer:
A
Step-by-step explanation:
1. Solve 3x^2+7=31 using square roots.
2. Solve x^2-12x=45 by factoring
3. Find the zeros of f(x)=6x^2+9x-6
Answer:
holaaaaaaaa q tallllll
-k/5 = 7/5 can someone help with this?
Answer:
k = -7
Step-by-step explanation:
Step 1: Write equation
-k/5 = 7/5
Step 2: Solve for k
Cross multiply: -5k = 35Divide both sides by -5: k = -7Step 3: Check
Plug in k to verify it's a solution.
-(-7)/5 = 7/5
7/5 = 7/5
Write an equation in slope-intercept form of the line that passes through (6,-1) and (3,-7). Please help!
Answer:
y = 2x – 13
Step-by-step explanation:
Use Slope formula to get the slope
(y2-y1) / (x2-x1)
(-7--1) / (3-6)
(-6)/(-3)
2
Then plug-in the value of slope and any one coordinate in Point-Slope formula:
y- y1= m(x-x1)
y - -1 = 2( x - 6)
y + 1 = 2x - 12
y = 2x - 13
The equation of the line in the slope-intercept form will be y = 2x – 13.
What is an equation of the line?An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.
The general form of the equation of the line:-
y = mx + c
m = slope
c = y-intercept
Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )
Slope = (-7-(-1)) / (3-6)
Slope = (-6)/(-3)
Slope = 2
Then plug in the value of slope and any one coordinate in the Point-Slope formula:
y- y₁= m(x-x₁)
y - (-1) = 2( x - 6)
y + 1 = 2x - 12
y = 2x - 13
Therefore, the equation of the line in the slope-intercept form will be y = 2x – 13.
To know more about an equation of the line follow
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Please answer I promise I will mark you brainiest
Answer:
1. A=907.92
2. A=113.1
3. A=37.5
P=35
4. A=234
P= 75.6
Step-by-step explanation:
Answer:
DID YOU REALLY NEED TO ASK THIS!!!!!!!!!!!!
Step-by-step explanation:
Given the function f(x) = −2x2 + 3x + 10, find f(1) and f(3). Choose the statement that is true concerning these two values.
Answer:
The value of f(1) is greater than value of f(3)
Step-by-step explanation:
We substitute..x = 1..into the given equation....where we say...
; -2(1)^2 + 3(1) + 10 = 11
Then we substitute..x = 3..into the given equation
;-2(3)^2 + 3(3) + 10
;-2(9) + 9 + 10 = 1
If f(1) = 11 and f(3) = 1...then the value of f(1) is greater than the value of f(3)
Step-by-step explanation:
The given function is f(x) = -2x² + 3x + 10. We are asked to find f(1) and f(3).To find f(1), we substitute 1 in the place of x in the given function and evaluate it.
That is,f(1) = -2(1)² + 3(1) + 10= -2 + 3 + 10= 11To find f(3), we substitute 3 in the place of x in the given function and evaluate it.
That is,f(3) = -2(3)² + 3(3) + 10= -18 + 9 + 10= 1We see that f(1) is larger than f(3).
Hence, the correct answer is "The value of f(1) is larger than the value of f(3)."
if it is a tree then it has leaves which of the diagrams below represents the statement
Answer: B
Step-by-step explanation:
Could anyone please help me with this for Calculus AB? I'm not entirely sure if the answer I put down is correct or not; I got some funky graphs for it though.
Hi there! :)
C. has both jump and infinite discontinuity.
Evaluate both piecewise functions at x = 1;
1 / (x + 1) = 1 / ((1) + 1) = 1/2
2x - 1 = 2(1) - 1 = 1
As the piecewise functions contain different y-values when evaluated at
x = 1, there is a jump discontinuity at x = 1.
However, the first function also contains a vertical asymptote or infinite discontinuity where it is undefined, or at x = -1. (1 / 0 = undefined). This means that the function also contains an infinite discontinuity.
Therefore, the correct choice is:
C. has both jump and infinite discontinuity.
How many solutions does the equation have? If there is only one, determine the value.
12
y
−
18
=
6
(
2
y
−
3
)
Answer:
0=0
Step-by-step explanation:
Infinite
The given equation can be rearranged to equate both side of the equation and thus we can get equivalent on both side as 6 (2y-3) = 6 (2y-3). Therefore, y can have any values from 0.
What are algebraic equations?Algebraic equations are expression used to represent the relation between two values by some letters or alphabets whose values are not specified in the equation.
In general, the letters x and y are used in the algebraic equations. They can linear or non-linear equation. By rearranging this equations we can determine the values of x and y.
Given the expression 12 y - 18 = 6 (2y - 3). From the left hand side, divide the part 12 y - 18 by 6. Thus we obtain the expression equivalent to the right hand side as 6 (2y - 3).
Therefore, 6 (2y - 3) = 6 (2y - 3). Which means both sides are equal and have equal value of y. means y can have any values from zero since all the terms including y is zero both side.
Thus, giving any value to y will always remains the same equation.
To find more about algebraic equations, refer the link below:
https://brainly.com/question/953809
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Please help!!!!!!!!!
Answer:
bottom one
Step-by-step explanation:
Ella wants to buy forks and spoons for her new house. Forks cost 1$ each and spoons cost 4$ each. She spent 50$ and bought 20 items in total. Which equations represent this word problem?
Answer:
50 = 1(x) + 4(y)
Step-by-step explanation:
I'm not too sure about this answer, its more of a guess but I hope this helped :)!
X = amount of forks bought
y = amount of spoons bought
Fatima Sheroud sells children's clothing for The
Grasshopper Shoppe. She is paid weekly on a straight
commission of 4% on sales of $5,000.00 or less and 5% on sales in
excess of $5,000.00. One week Fatima had a gross pay of $594.50.
What were her total sales for that week
Answer:
7890
Step-by-step explanation:
(5000*4%)+(x*5%)=594.50
200+(x*5%)=594.50
x*5%=394.50
x=7890
simplify the expression
–4(5x)
Answer:
-20x
Step-by-step explanation:
the number outside of the parenthasis must be distributed to all numbers with in them.
ex:
-3(2x + 5) = -6x -15
what is the domain and range of this graph ?
Answer:
Domain: [-3, 2]
Range: [-3, 3]
Step-by-step explanation:
Domain is the set of x-values that can be inputted into function f(x).
Range is the set of y-values that are outputted by function f(x).
We see that our x-values span from -3 to 2. Since they are both closed dots, they are included in the domain:
[-3, 2] or -3 ≤ x ≤ 2
We see that our y-values span form -3 to 3. Since they are both closed dots, they are included in the range:
[-3, 3] or -3 ≤ x ≤ 3
At Feet-R-Us colored socks are $5 and white socks are $3. Jimmy buys $32 worth of socks. An equation representing this scenario is 5c + 3w = 32. Solve this equation for c, the cost of 1 pair of colored socks
c=4 w=4
5c=20
3w=12
5c+3w=32
Write 68,127,000,000,000,000 in scientific notation. (x10^
Answer:
6.8127 × 10^16
Step-by-step explanation:
Hope this helps:)
Answer:
6.8127 *10^16
Step-by-step explanation:
Scientific notation is a way to make these numbers easier to work with. In scientific notation, you move the decimal place until you have a number between 1 and 10. Then you add a power of ten that tells how many places you moved the decimal.
simplify the expression
4t + 10t
Answer:
Add 4t and 10t
14t
Step-by-step explanation:
When you have the same variable you simply can add them together.
Hope this helps :)
Given f (x)= 5 (2 - x), what is the value of f(-6)
Answer:
f(-6)=40
Step-by-step explanation:
f(x)=5(2-x)
f(x)=10-5x
f(-6)=10-5*(-6)
f(-6)=10+30
f(-6)=40
A bottle of water is 2/3 full. You drink 1/2 of the water. Use a model to find the portion of water that you drink.
Answer:
you drank 1/3 of the bottle
Step-by-step explanation:
split the 2/3 in half
Sue used to have a square garage with 286 ft squared of floor space. He recently built an addition to it. The garage is still a square, but now it has 50% more floor space. What was the length of one side of the garage originally? What is the length of one side of the garage now? What was the percent increase in the length of one side?
Answer:
New Length = 20.71 feet
Original Length = 16.91 feet
22.47%
Step-by-step explanation:
Original area of the square garage = 286 ft squared
Addition of 50% more space
New area of the garage = 286 + .50(286)
= 286 + 143
= 429 square feet
What was the length of one side of the garage originally?
Original area of the square garage = 286 ft squared
Area of a square = length^2
286 = length^2
Find the square root of both sides
√286 = √length^2
Original Length = 16.91 feet
What is the length of one side of the garage now?
New area of the garage = 429 square feet
Area of a square = length^2
429 = length^2
Find the square root of both sides
√429 = √length^2
New Length = 20.71 feet
What was the percent increase in the length of one side?
(New length - old length) / old length × 100
= (20.71 feet - 16.91 feet) / 16.91 feet × 100
= 3.8 feet / 16.91 feet × 100
= 0.2247 × 100
= 22.47%
solve for X , thanks
[tex]x = 5 \sqrt{2} [/tex]
it does let me to out the +/- in front of the five but it have to be there so you put it ... because it can be both positive or negativw
Andy works at a grocery store. The manager of the store would like Andy to set up a display of apples. Part of the display will include bags of apples. If there are 39 pounds of apples in the back of the store, how many bags of apples can Andy make for the display? each bag has 1 1/2 pound
Answer:
Andy can make 26 bags for the display.
Step-by-step explanation:
Quantity of apples in the back of the store = 39 pounds
Quantity of apples in one bag = [tex]1\frac{1}{2}[/tex] pounds
Here,
[tex]1\frac{1}{2}=\frac{2(1)+1}{2}=\frac{3}{2}[/tex]
Number of bags = Quantity of apples in the back of the store / Quantity of apples in one bag
[tex]=\frac{39}{1\frac{1}{2} }=\frac{39}{\frac{3}{2} }=39(\frac{2}{3})=26[/tex]
So, Andy can make 26 bags for the display of apples.
Simplify the following expression: 7n (-3+ 6n) - 2n (3 + 7n)
Answer:
=28n2−27n
Step-by-step explanation:
In the diagram below, DE is parallel to Y. What is the value of x
Which statement is not true
This size running track is usually called a 400-meter track. However, if a person ran as close to the "inside" as possible on the track, they would run less than 400 meters in one lap. How far away (in meters) from the inside border would someone have to run to make one lap equal exactly 400 meters?
Answer:
They would have to be in the very center of the track
Step-by-step explanation:
Look up how wide each lane of a track is and then times that by 2.5
