Answers
[tex]\\ \sf\longmapsto x^2-4x-5=0[/tex]
Use midterm splitation[tex]\\ \sf\longmapsto x^2-5x+x-5=0[/tex]
[tex]\\ \sf\longmapsto x(x-5)+1(x-5)=0[/tex]
[tex]\\ \sf\longmapsto (x-5)(x+1)=0[/tex]
[tex]\\ \sf\longmapsto x=5\:or\:x=-1[/tex]
Solution is (-1,0) and (5,0)
Graph attached.
Spare way:-
Use quadratic formula .
[tex]\\ \sf\longmapsto x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{-(-4)\pm\sqrt{(-4)^2-4(1)(-5)}}{2(1)}[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{4\pm \sqrt{16+20}}{2}[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{4\pm 6}{2}[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{10}{2}\:or\:\dfrac{-2}{2}[/tex]
[tex]\\ \sf\longmapsto x=5\:or\:-1[/tex]
[tex]x {}^{2} - 4x - 5 = 0 \\ x {}^{2} + x - 5x - 5 = 0 \\ x(x + 1) - 5(x + 1) = 0 \\ (x + 1)(x - 5) = 0 \\ x + 1 = 0 \\ x - 5 = 0 \\ x = - 1 \\ x = 5[/tex]
The equation has two solutions:x=5, x=-1Graph is in the attachment!!
Related Questions
Help please I need it
Answers
Answer:
okk
Step-by-step explanation:
Answer:
11.401754251
Step-by-step explanation:
I used the Pythagorean theorem to solve. 9 * 9 + 7 * 7 = 130 and the square unit of 130 is 11.401754251 but you should be fine by putting 11.4.
sorry if I'm wrong:(
please help me! Ten men and 15 women apply for a job. All are equally qualified and 4 applicants are selected at random for hiring. Find the probability, to the nearest thousandth, of hiring exactly 3 women. FYI: i don't want links at all.
Answers
Answer:
3,600
Step-by-step explanation:
15 equality of 4 applicants which is subductive to the inequality of quotients.. Simplified to 3,600
Remove the brackets using the distributive law for the following: -9(a + 4)
Answers
Answer:
-9a - 36
Step-by-step explanation:
Step-by-step explanation:
I m not sure but I think this is the answer
the radius of a circle is 9 meters. what is the circles area?
Answers
Answer:
254.469 meters
Step-by-step explanation:
A = πr² = π · 9² ≈ 254.469
↓
254.469 meters
Simplify,
Rewrite the expression in the form 2n.
2.2.2.2.2.2.2.2
2.2.2.2
Answers
An expression is defined as a set of numbers, variables, and mathematical operations. The expression can be written in the form of 2ⁿ as 2⁴.
What is an Expression?In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
The expression can be rewritten as,
[tex]\dfrac{2 \cdot2 \cdot2 \cdot2 \cdot2 \cdot2 \cdot2 \cdot2}{2 \cdot2 \cdot2 \cdot2} = \dfrac{2^8}{2^4} = 2^{8-4} = 2^4[/tex]
Hence, the expression can be written in the form of 2ⁿ as 2⁴.
Learn more about Expression:
https://brainly.com/question/13947055
#SPJ1
Could someone please help me? Find the domain and range of the graph
Answers
Answer:
C = D all real Numbers ; R y>= -2
Step-by-step explanation:
for discover the domain we have to look the x axis and check for what x the graph exist. If we look this graph we can see that there are two solid lines.
the two arrows indicate that the graph continues both to left and to the right
so the domain is all real numbers
for the range we have to check the y axis. If we look at the graph we can see that under -2 there is nothing, while up -2 the graph continues to raise,
so the range is y>= -2
so the final answer is C
Can someone please help me
Answers
Answer:
I belive the answer would be B
Step-by-step explanation:
Solve the system of equations.
14x + 5y = 31
2x – 3y = -29
2 =
y =
Answers
Answer:
X,y=83/52 ,45/26
Step-by-step explanation:
just look up your answer and you will find the step by step. Hopefully this helped :)
. A trader bought A TV set for Birr 2000 and sold it at loss of 11/2% what:was the selling price?
Answers
Answer:
1890
Step-by-step explanation:
Loss = 11/2 % = 5.5 %
Cost price = 2000
Loss = 5.5% of cost price
= 5.5% * 2000
[tex]= \frac{5.5}{100}*2000\\\\= 5.5*20\\= 110[/tex]
Selling price = Cost price - loss
= 2000 - 110
= 1890
Which of the following it's true about f(x) and g(x)
Answers
Answer:
its c
Step-by-step explanation:
in 37.2 the ones place and the tenths place is separ
ated by a what?
Answers
Answer:
Decimal
Step-by-step explanation:
The 37 and the 2 is separated by that little dot called a decimal.
Answer:
37+2/10
Step-by-step explanation:
Select all expressions that are equivalent to 2 · 2 · 2 · 2 · 2 · 2
A. 23. 23
B. 22. 24
C. 25
D. 4(22)
E. (22)
Answers
Answer:
its 64
Step-by-step explanation:
2 x 2 = 4
4 x 2 = 8
8 x 2 = 16
16 x 2 = 32
32 x 2 = 64
10. Find the surface area of a rectangular prism that has a length of 8 inches, a width of 3 inches, and a height of 6 inches.
Answers
Answer:
144 inches^3
Step-by-step explanation:
The area of a 3D model is length x width x height (lxwxh).
length x width x height
(8) x (3) x (6)
(24) x (6)
144
144 inches cubed
ill give brainliest
Length = 11
Width = 4
Height = 7
What is the vloume?
What is the surface area?
Answers
Answer:
volume = 308 units^3
surface area = 298 units^2
Plss I need this rnnn
Answers
Answer:
25
Step-by-step explanation:
25 is the answer because the sum of angles add up to 90
Giving brainliest for the correct answer
Answers
Answer:
10 x 6 = 4
4 x 4 = 16
+
6 x 10 = 60
= 76 square cm.
Answer:
D
Step-by-step explanation:
What is the diameter of a circle go through
Answers
Answer:
The diameter of a circle passes through the center of the circle and has its endpoints on the circle itself. The diameter of any circle is two times the length of that circle's radius.
Step-by-step explanation:
To find the diameter of a circle, you need to know the radius of the circle, double it to get the diameter. The radius is the distance from the center of the circle to its edge. If the radius of the circle is 4 cm, then the diameter of the circle is 4 cm x 2, or 8 cm. If you know the circumference of the circle, divide it by π to get the diameter.
a1 = -7 a18 = 3393 find d
Answers
Answer:
d = 200
Step by Step Explanation:
The volume of a sphere is . To the nearest , what is the radius of the sphere? Use 3.14 for π.
Answers
In AXYZ, X = 260 inches, y = 580 inches and ZZ=8°. Find the area of AXYZ, to the
nearest square inch.
Answers
Answer:
10494
Step-by-step explanation:
trust
PLES HALP POINTS PIC DOWN BELOW
Answers
Answer:
The answer is D
Step-by-step explanation:
Answer:
D) Quadrant IV (quadrant 4)
Step-by-step explanation:
Point C is in quadrant IV because its point is (4,-4)
For points that have a positive x-coordinate and a negative y-coordinate, that means they are in quadrant IV.
Another way to figure this out is by looking at this graphically:
y
|
Quadrant | Quadrant
II | I
|
------------------------------|----------------------------- x
|
Quadrant | Quadrant
III | IV
|
I hope this helps!
PLEASE HELP ME!!! THANK YOU SO MUCH!
Answers
Answer: B / 2,6,10,14,18
Step-by-step explanation:
you were given the equation next input 1 for n.
Solve and a = 2
Then you input 2 for n. Solve and you get a =6.
Do this up until you get to 5.
How many anime have you watched and name 10 of them if you can :D
Answers
Answer:
the best anime is death note.
Step-by-step explanation:
Answer:
My hero Achadamia is my fav. um Attack of the titan Black Clover and Fruits basket thats all i can name lol
Step-by-step explanation:
What is the angle of rotation counterclockwise about the spinner’s center that maps label h to label A? 252° 324° 144° 216°
Answers
Answer:
its 324
Step-by-step explanation:
GIVING BRAINLIEST AND THE REST OF MY POINTS!!!!!!
What type of triangle is shown in the image?
Acute triangle
Right triangle
Equilateral triangle
Obtuse triangle
Answers
Answer:
obtuse triangle
Step-by-step explanation:
Answer:
D. OBTUSE
Step-by-step explanation:
it's an obtuse triangle. :)
pls help 1755.97809915 round to the nearest cent
Answers
Answer:
1755.98
Step-by-step explanation:
1755.97809915
1 cent is 1 hundredth of a dollar, so to round to the nearest cent means to round to the nearest hundredth.
The 7 in boldface is the hundredths place.
Drop all digits to the right of the 7.
1755.97
dropped digits: 809915
Look at the leftmost digit that was dropped (in boldface). If it is from 0 to 4, you are done, and the answer is 1755.97. If the leftmost digit that was dropped is from 5 to 9, the hundredths digit goes up by 1. Here, the first digit that was dropped is an 8, so the 7 in the hundredth place goes up 1 to 8.
Answer: 1755.98
5v + 15rv – 5v + vr
please help
Answers
= 5v - 5v + 15vr + vr
= 16vr
Suppose Lindsay’s mom invests $10,000, part at 3%, and the rest at 2.5%, in interest-bearing accounts.-10,00007.5 The totally yearly investment income (interest) is $283. How much did Lindsay’s mom invest at each rate?
Answers
Answer:
she invested 6600 at 3% and 3400 at 2.5%
Step-by-step explanation:
Simple interest = amount deposited x time x interest rate
Let the amount deposited in in the account bearing 3% interest by represented with a
Let the amount deposited in in the account bearing 2.5% interest by represented with (10,000 - a)
a x 0.03 + (10,000 - a) x 0.025 = 283
0.03a + 250 - 0,025a = 283
collect like terms
0.03a - 0.025a = 283 - 250
0.005a = 33
a = 6600
the amount deposited in the 2.5% account = 1000 - 6600 = 3400
Help me out. Mathmatics
Answers
Answer: A. 5.6267 X 10^8
Step-by-step explanation:
(5.62 X 10^8) + (6.7 X 10^5)= 562670000
Which has 8 numbers after 5
5.6267 X 10^8 has 8 as well just minus the zeroes
Carla has a scooter worth $3,890. Her computer is worth $600. She owes $700 on her scooter and $497 on her credit card. Her personal property has a value of $2,100. She has $3,000 in her bank accounts and a mutual fund valued at $4,800. She wants to take out a $2,600 loan to buy some new appliances. The value of the appliances after purchase will go down 20%. Complete the explanation of how the purchase of the appliances will change Carla's net worth.
Answers
Answer:
will change by 12% because of the loan.
Step-by-step explanation: