Show how to find the roots (zeros) of the function in the picture below.
Please give a real answer because otherwise you don't get brainliest, I don't get helped, you get reported, nobody wins. Thankyou :)
Also, maybe, if you could not copy off a site, please? :D
Answers
Answer:
The roots (zeros) of the function are:
[tex]x=5,\:x=-8[/tex]
Step-by-step explanation:
Given the function
[tex]f\left(x\right)=x^2+3x-40[/tex]
substitute f(x) = 0 to determine the zeros of the function
[tex]0=x^2+3x-40[/tex]
First break the expression x² + 3x - 40 into groups
x² + 3x - 40 = (x² - 5x) + (8x - 40)
Factor out x from x² - 5x: x(x - 5)
Factor out 8 from 8x - 40: 8(x - 5)
Thus, the expression becomes
[tex]0=x\left(x-5\right)+8\left(x-5\right)[/tex]
switch the sides
[tex]x\left(x-5\right)+8\left(x-5\right)=0[/tex]
Factor out common term x - 5
[tex](x - 5) (x + 8) = 0[/tex]
Using the zero factor principle
if ab=0, then a=0 or b=0 (or both a=0 and b=0)
[tex]x-5=0\quad \mathrm{or}\quad \:x+8=0[/tex]
Solve x - 5 = 0
x - 5 = 0
adding 5 to both sides
x - 5 + 5 = 0 + 5
x = 5
solve x + 8 = 0
x + 8 = 0
subtracting 8 from both sides
x + 8 - 8 = 0 - 8
x = -8
Therefore, the roots (zeros) of the function are:
[tex]x=5,\:x=-8[/tex]
Related Questions
What is the slope of the line shown below?
A. -3
B. -2
C. 2
D. 3
Answers
Answer:
C because the y-intercept is 2
Step-by-step explanation:
Hope this Helped
Y is the inter slope but it’s to the left so it’ll be negative
WILL MARK BRAINLIEST........Write an equivalent expression for 8(3 + 5x) + 7x + 4
If x= 3, is the solution to both expressions the
same?
Answers
Answer:
https://brainly.com/question/6909008
Step-by-step explanation:
that question has the answer lol I'm not smart enough to find the answer or even understand the answer
Solve: c(9) = 270 c = _____
Answers
Answer:
2430
Step-by-step explanation:
c(9)=270c=____
c(9)=270 × 9
270×9 = 2430
because...
200 × 9 = 1800
+
70 × 9 = 630
therefore,
c(9)=270c=2430
N
The table shows the relationship between the number of calories Rob burns while jogging and the number of minutes he jogs.
How many calories will he burn in 1 minute? Enter your answer in the box.
Calories Burned
Time in Minutes (8) Calories Burned (/)
20
220
25
275
30
330
40
440
calories per minute
Answers
Answer:
he should burn about 10 calories per 1 minute
Step-by-step explanation:
HELPPPPPPPPPPPPPP !!!!!! I’m about to get an F
Answers
Answer:
x = 6
y = 5
Step-by-step explanation:
These shapes are similar. Since you multiply 3 to 3 for 9, multiply or divide by 3 for the rest of the numbers as well. For the x, multiply 2x3 for 6. And for the y divide 15/3 for 5.
Hope it's correct!
Explain how to find coordinates for Q
Answers
Answer:
Q = (4, - 1)
Step-by-step explanation:
DF is the diameter of the circle with center Q.
So, Q is the midpoint of DF.
By mid point formula.
[tex]Q = \bigg( \frac{1 + 7}{2}, \: \: \frac{3 - 5}{2} \bigg) \\ \\ Q = \bigg( \frac{8}{2}, \: \: \frac{ - 2}{2} \bigg) \\ \\ Q = (4, \: \: - 1)[/tex]
Yo what up everyone, I need help! I have a test and if I don't get a 70 or higher, I fail so if you want to answer some question be my guest, And also it about math.
Answers
Which is the correct representation of 6/1?
Answers
The correct representation of 6/1 is in figure A.
Given:
The four figures with shaded regions and unshaded regions.
To find:
The figure with the correct representation of 6/1.
Solution:
In figure A
Fraction of one box =[tex]\frac{1}{1}[/tex]
There are six individual boxes that will be represented as:
[tex]\frac{1}{1}+\frac{1}{1}+\frac{1}{1}+\frac{1}{1}+\frac{1}{1}+\frac{1}{1}=\frac{6}{1}[/tex]
In figure B
The number of shaded regions = 5
The total number of regions = 6
The representation will be :
[tex]\frac{\text{Shaded region}}{\text{Total regions}}=\frac{5}{6}[/tex]
In figure C
Fraction of one box =[tex]\frac{1}{1}[/tex]
There are five individual boxes that will be represented as:
[tex]\frac{1}{1}+\frac{1}{1}+\frac{1}{1}+\frac{1}{1}+\frac{1}{1}=\frac{5}{1}[/tex]
In figure D
The number of shaded regions = 1
The total number of regions = 1
The representation will be:
[tex]\frac{\text{Shaded region}}{\text{Total regions}}=\frac{1}{6}[/tex]
The correct representation of 6/1 is in figure A.
Learn more about fraction here:
brainly.com/question/1301841?referrer=searchResults
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About 29% of the Earth's surface is covered by land. The total surface area of the Earth is about 510 million square kilometers. What is the area of the Earth’s surface covered by land?
Answers
The area of the Earth's surface covered by land is A = 147.9 million sq km
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Substituting the values in the equation , we get
A = 29% of the Earth's surface is covered by land
Area of land = Total surface area of the Earth × Percentage of the Earth's surface covered by land
Substituting the given values, we get:
Area of land = 510 million sq km × 29%
Area of land = 0.29 × 510 million sq km
Area of land = 147.9 million sq km
Hence , the area of Earth's surface is 147.9 million sq km
To learn more about equations click :
https://brainly.com/question/19297665
#SPJ2
If Darius had 10 pounds of turkey and Brett had 84 ounces of turkey , who had more turkey ?
Answers
Answer:
Darius had more turkey.
Step-by-step explanation:
Brett only has 84 ounces of turkey, but when converting pounds to ounces, (16 ounces per 1 pound) Darius has 160 ounces of turkey.
Answer:
Darius
Step-by-step explanation:
D=10 lbs
1lb=16oz
Brett: 84/16=5.25lbs
have some points :) 4+4=?
Answers
thanks for the points
How many meters are in 275 inches
Answers
Answer:
6.985
Step-by-step explanation:
i need recommendations for sad songs heh
(O ᵕ O)
Answers
Answer:
Be alright by Dean Lewis
Say you wont let go by James Arthur
Someone you loved by Lewis Capadi
Hold on by Chord Overstreet
Surrender by Natalie Taylor
Train Wreckl
Step-by-step explanation:
Your going to be okay, whether your sad or not.
plzzzzzzzz help its in the pic
Answers
Answer:
5/8
Step-by-step explanation:
have a nice day!!!!!!!!!
Answer:
the answer is C
Step-by-step explanation:
v=1 w=5/8 take what we know and put it into the equasion
1/2+(3/4-5/8) simplify
1/2+(1/8) simplify further
1/2+1/8= 5/8
The members of the city cultural center have decided to put on a play once a night for a week. Their auditorium holds
600 people. By selling tickets, the members would like to raise $
3,300 every night to cover all expenses. Let d represent the number of adult tickets sold at $
7.50. Let s represent the number of student tickets sold at $
4.50 each. If all
600 seats are filled for a performance, how many of each type of ticket must have been sold for the members to raise exactly $
3,300? At one performance there were
two times as many student tickets sold as adult tickets. If there were
360 tickets sold at that performance, how much below the goal of $
3,300 did ticket sales fall?
Answers
200 adult tickets
400 student tickets
b) When 3 student tickets are sold for each adult ticket, the average seat price is
(3*$4.50 +7.50)/4 = $5.25
Then the shortfall in revenue is ...
$3,300 -480*$5.25 = $780
Hope I was able to help!<3 mark brainly I would appreciate it!:)
Solve for <6 pls :)) (Picture below)
Answers
Answer: 137°
Step-by-step explanation:
If you take the angle that is 43° and take 180°-43°
you get 137° this gives you angle 3 and since angle 3 and 6 are the same, angle 6 will equal 137°
What is the value of x?
Enter your answer in the box.
x =
Answers
Answer:
39
Step-by-step explanation:
you do 180 and subtract both values you already have 102 and 39. you get the answer of 39
simplify (4a^4b^9c)^2
Answers
Answer:
16a^8 b^18 c^2
Step-by-step explanation:
(4a^4b^9c)^2
=> 4^2(a^4)^2(b^9)^2 x c^2
evaluate the power
16 (a^4)^2(b^9)^2 x c^2
16a^8 b^18 c^2
Austin took 300 baseball cards from his collection. He gave 60% of them to his brother. How many baseball cards did Austin give to his brother?
Answers
I need help ASAP due in an hour
only the highlighted ones plz:)
Answers
Answer:
15.
a) 9
b) (x + 3)(x + 3) or (x + 3) ^ 2
16.
a) 121
b) (x + 11)(x + 11) or (x + 11) ^ 2
17.
a) 81
b) (x + 9)(x + 9) or (x + 9) ^ 2
Tyler spins each spinner below one time. What is the
probability of Tyler's spins landing on a number less
than 11 and on red?
Answers
HELPPPP!!!!!!!!! ASAP !!
Answers
Answer:
x > 6
That is one of the answers
5(2+c)=45+5c no solution
Answers
Answer:
Step-by-step explanation:
You have to start out with the distributive property 5 times 2 times c is 10+5c; now you have to subtract 5c on both sides in the upside down T chart, now its 10=45+c and your answer will be c=4.5.
what the answer of -2(z+3)-z=-z-4(z+2)
Answers
Answer:
z= -1
Step-by-step explanation:
Explanation: it’s a step by step equation where you keep breaking it down and solve.
Use the graph and match the question to the correct feature.
Occurs at the points (-6, 1) and (5, 1)Required to answer. Single choice.
Answers
Answer:
where is the paragraph can show it
a library has 8000 books , and is adding 50" more books each year. linear or exponential?
Answers
Answer:
Linear y=50x+8000
Step-by-step explanation:
find the cost of (a) kg of sugar when (b) kg of sugar costs $(c)
Answers
Answer:
ac/b
Step-by-step explanation:
Picking a multiple of 6 from the integers between 1 and 25.
Answers
Answer:
16%
Step-by-step explanation:
Answer: 6,12,18,24
Step-by-step explanation:
The radius of a circle is 35 centimeters.
Find the area of the circle.
Use 22/7 as an approximation for pi.
Answers
Answer:
3864.5
Step-by-step explanation:
I used 3.14 for pie, since its more common than 22/7.
To find the area of a circle: pir^2.
r=35
pi=3.14
35 times 35=1225
1225 times 3.14=3846.5
Jack and Alex are choosing food from a menu jack chooses a starter and a main how many different combinations are there.
Alex chooses a starter a main and a dessert how many combinations are there
Answers
Answer:
hopefully it's right sorry if I'm late (answers at the bottom of page)