Answer:
Step-by-step explanation:
real zeros -----> where f(x) = 0
[tex]-2x^{2} - 6x - 1 = 0\\[/tex] * (-1)
[tex]2x^{2} + 6x + 1 = 0\\[/tex]
Δ = [tex]6^{2} - 4 * 2 * 1[/tex] = 36 - 8 = 28
vΔ = 2[tex]\sqrt{7}[/tex]
x' = [tex]\frac{-6 + 2\sqrt{7} }{2 * 2} = \frac{-6 +2\sqrt{7} }4}[/tex]
x'' = [tex]\frac{-6 - 2\sqrt{7} }{2 * 2} = \frac{-6 -2\sqrt{7} }4}[/tex]
what is i^84? a) -i b) i c) -1 d) 1
Answer:
D) 1
Step-by-step explanation:
When you start raising i to certain powers, you begin to notice a pattern.
[tex]i^1=i \\\\i^2=-1 \\\\i^3=-i \\\\i^4=1 \\\\i^5=i \\\\ i^6=-1 \\\\ i^7=-i \\\\i^8= 1[/tex]
This cycle repeats forever. Since 84 is a multiple of 4, i^84 must be 1. Hope this helps!
Answer: 1
Step-by-step explanation:
You sold a total of 22 tickets to the baseball game. 9 tickets were adult tickets. How many student tickets were sold?
Answer:
13 tickets
Step-by-step explanation:
Answer:
33 is the answer
Step-by-step explanation:
PLEASE HELP ILL MARK YOU BRAINLIEST
Part A: Create a fourth-degree polynomial with three terms in standard form. How do you know it is in standard form?
Part B: Explain the closure property as it relates to addition of polynomials. Give an example.
Answer:
Part A: x⁴ + x³ + x²
Part B: (4·x + 2) + (-5·x + 6) = -x + 8
Step-by-step explanation:
Part A:
We note that standard form means that the terms of the polynomial are arranged in order starting from the the largest exponential of the polynomial to the smallest exponent
Therefore, we have
x⁴ + x³ + x² is a fourth-degree polynomial with three terms in standard form
It is known that the above polynomial is in standard form based on its ordered arrangement from the largest exponential to the smallest exponential
Part B:
Polynomial are closed under addition, that is when two polynomials are added only the coefficients change as the exponents and variables remain unchanged as follows;
(4·x + 2) + (-5·x + 6)
= 4·x + 2 - 5·x + 6
= 4·x - 5·x + 2 + 6
= -x + 8 which is a polynomial with the same variable and exponent.
Use the drop-down menus to complete each equation so the statement about its
solution is true
CLEAR
CHECK
No Solutions
7 - 5+32 – 1=_ x +_
One Solution
7 - 5+32 – 1= _x+_
Infinitely Many Solutions
7-5+32 – 1 = _x+_
Answer:
1.3x+9
2.1x+4
3.3x+1
Step-by-step explanation:
Pls help me. The one with the symbol are the answer choices for the questions
Answer:
∈
Step-by-step explanation:
∈ symbol indicates the data set on the left side is fully included in the data set on the right side
What is the slope of the line through the points (0,0) and (2,6)
Answer:
3
Step-by-step explanation:
The slope of a line can be found by dividing the amount that the line "rises" over a certain amount of "run". In this case, the line rises 6 units while moving 2 units to the right. 6/2=3, meaning that the slope of this line is 3. Hope this helps!
i think of a number, multiply it by itself and then add 6 to the result
Answer:
x²+6
Step-by-step explanation:
Let the number be x
⇒ Multiplying it by itself makes x × x = x²
⇒ Adding 6 makes it x²+6
Answer:
[tex] {x}^{2} + 6[/tex]
Step-by-step explanation:
thinked number = x
multiply by itself = x *x
[tex]x \times x \\ = {x}^{2} [/tex]
add 6 =+6
[tex] {x}^{2} + 6[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
what is the linear function ?
Answer:
f(x)= 5x+2
Step-by-step explanation:
Slope is 5, y intercept is (0,2)
3x+4=3x+4
what is x?
All real numbers because any value of x works
In a village the number of houses and the number of flats are in the ration9:5 the number of flats and the number pf bungalows are in the ratio 10:3 there are 30 bungalows in the village. How many houses are there in the village?
Answer: 180 houses
Step-by-step explanation:
From the question, we are informed that in a village the number of houses and the number of flats are in the ratio 9:5 while the number of flats and the number of bungalows are in the ratio 10:3 and that there are 30 bungalows in the village.
Since the ratio of the number of flats and the number of bungalows are in the ratio 10:3 and there are 30 bungalows in the village, the number of flats will be:
= 10/3 × 30
= 10 × 10
= 100 flats
Since we are told that the ratio of the number of houses to the number of flats are in the ratio 9:5 and we've gotten the number of flats as 100, then the number of houses will be:
= 9/5 × 100
= 9 × 20
= 180 houses
The graph of function f(x) =3x-6 is shown below.
What is the zero of the function?
A) 3
B) 2
C) -2
D) -6
Answer:
B) 2
Step-by-step explanation:
f(x) = 3x - 6
0 = 3x - 6
3x = 6
x = 2
In the triangle below x=? Round to the nearest tenth.
Answer:
Third angle = 70 degrees
tan (70) = 10 / x
x = 10 / tan (70)
x = 10 / 2.7475
x = 3.6396724295
x = 3.6 cm (rounded)
Step-by-step explanation:
How to solve.
34x-21x=9+85
Answer:
7 3/13
Step-by-step explanation:
34x-21x= 9+85
13x=94
x= 94/13
x=7 3/13
I bought 5 gallons of gas for 1770 what is the unit price for gas per gallon
Answer:
Brainleist!Step-by-step explanation:
1770/5 = the unti price
1770 / 5 = 354
354
[tex]solution \\ cost \: of \: 5 \: gallons \: of \: gas = 1770 \\ cost \: of \: 1 \: gallons \: of \: gas = \frac{1770}{5} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 354 \\ [/tex]
hope it helps...
good luck on your assignment
Quinn tried to evaluate an expression step by step. which step did she do wrong there is a selection for not mistake
Answer:
Quinn did not make a mistake. This is because everything she did is correct and also if we calculate the expression without doing anything she did, we see that she has the right answer.
Answer:
she didn't make any mistake
Step-by-step explanation:
She has expressed it correctly and if we calculate, the multiplication is also correct
Find the area of a triangle, two sides of which are 10 cm and 16 cm and the perimeter is 38 cm.
Answer:
Step-by-step explanation:
third side=38-(10+16)=38-26=12
sides are 10 cm, 12 cm , 16 cm.
2s=10+12+16=38
s=38/2=19
area=√(s(s-a)(s-b)(s-c))
=√[19(19-10)(19-12)(19-16)]
=√[19×9×7×3]
=3√391 cm²
≈59.32 cm²
5
.
John, Peter and Mary shared a sum of
money in the ratio 2:4:9. John and Peter
together received $360. How much money
in all was shared?
(A) $480
(B) $540
(C) $600
(D) $900
Answer:
D
Step-by-step explanation:
Here, we want to know the total amount of money shared
Total ratio is 2 + 4 + 9 = 15
Now, John and Peter with ratios 2 and 4 equals $360
If we combine their ratios, what we have would be
6:9
Let the amount shared be x
Now, mathematically
6/15 * x = 360
6x = 15 * 360
x = (15 * 360)/6
x = $900
If F(x)=3x^2-2 find (-3) x f (x)
Answer:
-9x²+6
Step-by-step explanation:
f(x)=3x^2-2
g(x)=(-3) x f (x)
g(x)= -3*3x²-3*(-2)= -9x²+6g(x)= -9x²+6Can someone answer this question please please help me I really need it if it’s correct I will mark you brainliest .
The answer is < RQO and < STV
Hope it helps
Good luck on your assignment ..
Gavin was thinking of a number. Gavin halves the number and gets an answer of 34.3. Form an equation with x as information.
Gavin's number is 68.6
Equation: 1/2(x) = 34.3
Use inverse operations on both sides.
1/2(x) = 1x or x = 34.3(2)
34.3(2) = 68.6
Thus, x equals 68.6
Gavin's number is 68.6.
What is multiplication?
In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life
here, we have,
Gavin halves the number and gets an answer of 34.3.
now, we get,
Equation: 1/2(x) = 34.3
Use inverse operations on both sides.
1/2(x) = 1x
or x = 34.3(2)
i.e. 34.3(2) = 68.6
Thus, x equals 68.6.
To learn more on multiplication click:
brainly.com/question/5992872
#SPJ2
Point s is not on line k. How many different planes contain both point s and line k?
[tex]the \: answer \: is \: one \\ explanation \\ there \: is \: only \: one \: such \: plane \: which \: \\ will \: have \: these \: two \: points. \: these \\ two \: points \: will \: satisfy \: only \: one \: pl - \\ ane \: equation \: because \: they \: doesnot \\ lie \: in \: a \: single \: line. \\ hope \: it \: helps[/tex]
Answer:
c
Step-by-step explanation:
one
what is the key vocabulary of cubic functions
Answer:
Hope it helps!
Step-by-step explanation:
The general form of a cubic function is y = ax3 + bx + cx + d where a , b, c and d are real numbers and a is not zero. We can graph cubic functions by plotting points.
A cubic function is any function of the form y = ax^3 + bx^2 + cx + d, where a, b, c, and d are constants, and a is not equal to zero, or a polynomial functions with the highest exponent equal to 3. These types of functions are extremely prevalent in applications involving volume.
Credits;
Graphs of Cubic Functions (solutions, examples, videos)
Cubic Function: Definition, Formula & Examples - Video & Lesson
i really hate maths at the moment
Answer:
80 kg
Step-by-step explanation:
[tex]x \times (1+10/100)=88[/tex]
[tex]1.1x=88[/tex]
[tex]x=88/1.1[/tex]
[tex]x=80[/tex]
and the Aegean Sea is located at
On the map above, the Black Sea is located at
A Letter A Letter C
B. Letter C Letter B
C Letter A Letter B
D. Letter B Letter A
Answer:
The answer to your question is C.
Step-by-step explanation:
Have a nice day :)
a carpenter can make 30 chairs, 25 tables and 15 beds in a month. what proportion of the carpenter's output is bed.
Answer:
3/14
Step-by-step explanation:
Express the beds as a fraction of the total output.
Beds = 15
Total output = 30 + 25 + 15 = 70
Proportion that is beds = 15/70
15/70 = 3/14
A force of 76 N is applied to an area of 490 cm2. Calculate the pressure in N/m2. Give your answer to the nearest integer.
Answer:
Given
Hope it helps
Step-by-step explanation:
Pressure is the force per unit perpendicular area over which the force is applied
p=F/A
Where f is force and a is area
So P
= F/A
= 76N / 0.049m2
= (76/0.049) Nm2
= 76000/49
= 1551.02
Or 1551 N/m2
Andy left a 15% tip for a meal that cost $38. What was the total cost of the meal including the tip? whit solution
Answer:
Your Answer is $43.7
Step-by-step explanation:
Take the initial $38 and Multiply it by the .15 (15%) tip
You get a $5.7 tip
Add that to the meal cost of $38 and you get $43.7
If f(x) = 3x + 10 and g(x) = 2x - 4, find (f-9)(x).
Answer:
work is pictured and shown
someone figure this one out
Answer:
c
Step-by-step explanation:
We see that for x≤2 y = x + 2 so the answer is C.
Angle EMG is equal to 120 degrees. The measure of angle EMF is 60 degrees.
What is the measure of angle FMG?
Trapezoid EFGH is given. M is the midpoint of side GH. Points E and F are joined to M to form 3 equal triangles EHM, EMF and MFG.
Answer:
[tex]\angle FMG=60^{\circ}[/tex]
Step-by-step explanation:
Given: [tex]\angle EMG=120^{\circ}\,,\,\angle EMF=60^{\circ}[/tex]
To find: [tex]\angle FMG[/tex]
Solution:
A trapezoid is a quadrilateral in which one pair of opposite sides is parallel. A trapezoid in which opposite angles are supplementary is known as an isosceles trapezoid. In any isosceles trapezoid, two opposite sides are parallel, and the two other sides are equal to each other.
Consider the figure:
[tex]\angle FMG=\angle EMG-\angle EMF\\=120^{\circ}-60^{\circ}\\=60^{\circ}[/tex]