Answer:
(x - 10)(x + 10)
Step-by-step explanation:
x² - 100 ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b) , then
x² - 100
= x² - 10²
= (x - 10)(x + 10)
Which statement about the equation 3x ^ 2 + 9x - 12 = 0 is true ? 1 . The product of the roots is -12 . 2 The product of the roots is -4 . 3 The sum of the roots is 3 . The sum of the roots is -9 .
Answer:
Option : The product of the roots is - 4
Step-by-step explanation:
[tex]3x^2 + 9x - 12 = 0\\\\3x^2 + 12x - 3x - 12 = 0\\\\3x(x+4) -3(x+4) = 0\\\\(3x - 3) (x+ 4) = 0\\\\[/tex]
Therefore the roots are -4 and 1
The product of the roots are -4 x 1 = -4
Abel has a piece of string that is 7/10 of a meter long. He cuts off 1/2 of a meter of string. How many meters of string does Abel have now?
Answer:
1/5
Step-by-step explanation:
7/10-1/2=1/5
hope it helps:)))
In ΔLMN, MN = 15, NL = 20, and LM = 6. Which list has the angles of ΔLMN in order from smallest to largest?
Answer:
m<N, m<L, m<M
Step-by-step explanation:
The angle that sees the longest side length has the bigger angle measurement
so the angles would be listed as following :
from smallest to largest :
m<N, m<L, m<M
Find RS. See image below
Step-by-step explanation:
since both cords are equal, so are arc length
4x + 18 = 7x - 51
3x - 21 = 0
x = 7
arc RS = 4(7) + 18
For EASY BRAINLIEST!!!
Answer:
A.
B.
C.
D.
On both questions
Answer:
8a) 3x
8b) 3 × x
8c) (2/3)x
8d) x/2
8e) 1/x
9a) 4x - 7
9b) x + 1/x
9c) 5(x + 2)
9d) x/(x + 4)
9e) (x/8) + x
(PLEASE HELP)
Find measurement for angles for 1 and 2
Answer:
Angle 1 is = 54° ( vertically opposite angles)
Angle 2 is = Angle 1 (corresponding angles are equal)
therefore Angle 2 = 54°
Please help will be marked as brainliest if correct
Answer:
I think the answer is three.
[tex]x^{2} +2000+15637=56 \\\\what is X\\\\PLEASE HELP[/tex]
Answer:
not defined
Step-by-step explanation:
[tex] {x}^{2} = 56 - 2000 - 15637 \\ {x}^{2} = - 1758[/tex]
Evaluate 13 - 0.75w+8x when w=12 and x= 1 over 2
Answer:
8
Step-by-step explanation:
Given:
13 - 0.75w + 8x
where,
w = 12
x = 1/2
13 - 0.75w + 8x
Substitute the value of w and x into the equation
= 13 - 0.75(12) + 8(1/2)
= 13 - 9 + 8/2
= 13 - 9 + 4
= 8
Therefore,
13 - 0.75w + 8x = 8
Find the surface area and the volume of the composite figure
Answer:
See belowStep-by-step explanation:
Surface area of the figure:
S = 2(lw + lh + wh) + 1/2(4πr²) - πr² = 2(lw + lh + wh) + πr² S = 2(6*10 + 6*6 + 6*10) + 3.14*(6/2)² = 340.26 cm²Volume of the figure:
V = lwh + 1/2(4/3πr³) = lwh + 2/3πr³ V = 6*10*6 + 2/3*3.14*(6/2)³ = 416.52 cm³Answer:
> S = 340.26 cm²
> V = 416.52 cm³
Step-by-step explanation:
We need to find the surface area and the volume of the composite figure . The given figure is made up of a cuboid and a hemisphere . Let's Calculate them ,
Finding the Surface area :-
> S = 2(6*10 + 6*6 + 6*10) + 3.14*(6/2)
> S = 340.26 cm²
Volume of the figure:
> V = lbh + 1/2(4/3πr³)
> V = 6*10*6 + 2/3*3.14*(6/2)³
> V = 416.52 cm³
Using the order of operations, what should be done first to evaluate 6 + StartFraction (negative 5 minus 7) over 2 EndFraction minus 8 (3)?
Subtract 7 from –5.
Multiply 8 and 3.
Divide 7 by 2.
Add 6 and –5.
do you mean
6+(-5-7)/2-8(3)?
-5-7= -12
6+-12/2-8(3)
8(3)=24
6+-12/2-24
-12/2=-6
6+-6-24
6+-6=0
0-24= 24
Answer:
Subtract 7 from –5.
Step-by-step explanation:
can someone please help
Answer:
a
Step-by-step explanation:
When there is no decomposition, the plant is deficient in minerals.
someone that could help me with this?
Answer:
. ...................... ........
On a map of a town a school is located (-6, 3) and a movie theater is located (-6, -15) what is the distance from the school to the theater
Answer:The distance from the school to the theater = 18 units
Step-by-step explanation:
Distance between (a,b) and (c,d) = [tex]\sqrt{(d-b)^2+(c-a)^2}[/tex] units.
Given: On a map of a town a school is located (-6, 3) and a movie theater is located (-6, -15).
So, distance between (-6, 3) and(-6, -15) = [tex]\sqrt{(-6-(-6))^2+(-15-3)^2}[/tex]
[tex]=\sqrt{0^2+(-18)^2}\\\\=\sqrt{18^2}\\\\=18\ units[/tex]
Hence, the distance from the school to the theater = 18 units
Q.No.1: A subset of {1,7,8 } is:
Step-by-step explanation:
you only need to provide an example ?
if your question here is complete, then the full set is
{1,7,8}
and these are all possible subsets (pick any one you like) :
{1}, {7}, {8}, {1,7}, {1,8}, {7,8}
and formally also
{}, {1,7,8}
the empty set is a subset of every set, and the whole set itself is also formally a subset.
i dont know this sfjghfhbkdvnmds
Answer:
80
Step-by-step explanation:
Round 9.82
9.82 = 10
8 × 10 = 80
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Have a great summer :)
Use the drop-down menus to answer the questions. What is the value of 6 in 16,000 after dividing by 1,000? What is the value of 9 in 1,900 after dividing by 100? What is the value of 8 in 81,500 after dividing by 10?
Answer:
if you divide 1000, 100 and 10 in 16000 , 1900 and 81500 then the value of 6 and 9 is at once place and value of 8 is at thousand place
Answer:
6, 9 & 8150
Step-by-step explanation:
16,000 ÷ 1000 is 6
1900÷100 is 9
81,500÷10 is 8150
which linear inequality is represented by the graph
Answer:
Step-by-step explanation:
Identify each line or segment that intersects ⊙ T. HELP PLEASE!!!
Answer:
The 2 option :)
Step-by-step explanation:
The Chords : QL ,SM , Secant : NR , Tangents : a and b , Diameter : QL, ,radii: PT , QT and TL therefore the Option A is the correct answer.
What is a Circle ?A circle is a round shaped figure , whose all points are in the same plane and at same distance from a single point known as center.
A secant is a segment that passes through 2 points on a circle, It is an infinite extension of a chord.
A tangent touches a circle at exactly one point and never enters the interior of the circle.
A chord is a line segment which connects two point on the circle.
A diameter is a chord that passes through the center of the circleThe radius is half of the diameter of the circle
Based on the above definitions
Chords : QL ,SM
Secant : NR
Tangents : a and b
Diameter : QL
radii: PT , QT and TL
To know more about Circle
https://brainly.com/question/11833983
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Write an inequality to describe the relationship between -1 2/3 and-1/4
Step-by-step explanation:
- 1⅔ < -¼
__________________
Find the volume of this cylinder.
_____ cubic inches
Answer:
2355in³
Step-by-step explanation:
3.14(5)²×30=2355 in³
Answer:
Answer:94.2
Answer:94.2Step-by-step explanation:
Answer:94.2Step-by-step explanation:3.14(5)²×30
Answer:94.2Step-by-step explanation:3.14(5)²×303.14×25×30
Answer:94.2Step-by-step explanation:3.14(5)²×303.14×25×303.14×5×6
= 94.2
i am sorry if it is not correct
Help please ASAP ASAP ASAP
Answer:
-3/2
Step-by-step explanation:
simply make y the subnext of the equation
Answer:
Step-by-step explanation:
3x - 2y = 18
-2y = - 3x + 18
y = 3/2 x - 9
slope of a parallel line would be M = 3/2
PLZZZ HELP
Find the average rate of change of h(x) = 2x² – 7x from x=2 to x=5.
Simplify your answer as much as possible.
Answer:
The average rate of change of h(x) in the given interval is 7.
Step-by-step explanation:
When we want to find the average rate of change of a function f(x), in an interval a < x < b, we just need to calculate:
[tex]r = \frac{f(b) - f(a)}{b - a}[/tex]
Here we have:
h(x) = 2*x^2 - 7*x
And we want to find the average rate of change between x = 2 and x = 5
This will be:
[tex]r = \frac{h(5) - h(2)}{5 - 2} = \frac{(2*5^2 - 7*5) - ( 2*2^2 - 7*2)}{3} = \frac{15 - (-6)}{3} = \frac{21}{3} = 7[/tex]
The average rate of change of h(x) in the given interval is 7.
A system of equations has 1 solution. If 4x – y = 5 is one of the equations, which could be the other equation?
A- y = –4x + 5
B- y = 4x – 5
C- 2y = 8x – 10
D- –2y = –8x – 10
Answer:
D: 2y = 8x - 10
Step-by-step explanation:
A: y = 4x + 5. This has a slope of -4 Yes it could work.
B: y = 4x - 5. No It does not work
C: 2y = 8x - 10. The slope is 8/2 = 4. So No it could not work.
D: -2y = 8x - 10. The slope is 8/-2 = -4. Yes This Does work! :)
Which equation is a function of x?
Answer:
X=5
x=y2+9
x2=y
x2=y2+16
Step-by-step explanation:
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
Someone Helppp me please
Answer:
Step-by-step explanation:
diameter = 3.7
radius = diameter/2
=3.7/2
=1.85
area of circle = πr^2
=π*(1.85)^2
=3.4225π m^2
pls answer
. its urgent pls
an
Answer:
a
Step-by-step explanation:
Answer:
option c
Step-by-step explanation:
[tex]\frac{-4}{3} * y = \frac{-3}{4}[/tex]
shift -4/3 to the right hand side . when it shifts to other side miltiplication changes to division
y = [tex]\frac{-3}{4} /\frac{-4}{3}[/tex]
now do reciprocal
y = [tex]\frac{-3}{4} *\frac{3}{-4}[/tex]
y = [tex]\frac{-9}{-16}[/tex]
minus and minus gets cancel
y = [tex]\frac{9}{16}[/tex]
y = [tex]\frac{(3)^2}{(4)^2}[/tex]
y = [tex](\frac{3}{4})^2[/tex]
What is the formula of a²—b²?
[tex]\implies {\blue {\boxed {\boxed {\purple {\sf { {a}^{2} - {b}^{2} = (a + b)(a - b)}}}}}}[/tex]
[tex]\bold{ \green{ \star{ \orange{Mystique35}}}}⋆[/tex]
[tex] \sf {a}^{2} - {b}^{2} = (a + b)(a - b)[/tex]
This is the required formula.
Solve the simultaneous equations
x + 7y = 15
x + 2y = 5
Answer:
x=1, y=2
Step-by-step explanation:
x + 7y = 15
x + 2y = 5
Subtract the two equations
x + 7y = 15
-x - 2y =- 5
------------------------
0x +5y = 10
Divide by 5
5y/5 = 10/5
y =2
Now find x
x+2y = 5
x +2(2) = 5
x +4 = 5
Subtract 4 from each side
x-4+4 = 5-4
x = 1
Simón y Carlos tienen una pista de autos iguales, pero cada uno de ellos tiene dos autos que corren a distintas velocidades. De los autos de Simón uno le da una vuelta completa a la pista en 31 segundos y el segundo lo hace en 17 segundos. De los autos de Carlos uno da una vuelta completa en 36 segundos y el segundo en 42 segundos. Proponen una competencia en la que todos los autos salen al mismo tiempo de la meta y el ganador será el primero en el que sus dos autos lleguen al mismo tiempo, de nuevo a la meta. ¿Quién ganará?
Answer:
Carlos.
Step-by-step explanation:
Dado que Simón y Carlos tienen una pista de autos iguales, pero cada uno de ellos tiene dos autos que corren a distintas velocidades, y de los autos de Simón uno le da una vuelta completa a la pista en 31 segundos y el segundo lo hace en 17 segundos, mientras que de los autos de Carlos uno da una vuelta completa en 36 segundos y el segundo en 42 segundos, si ambos proponen una competencia en la que todos los autos salen al mismo tiempo de la meta y el ganador será el primero en el que sus dos autos lleguen al mismo tiempo, de nuevo a la meta, para determinar quién ganará se deben realizar los siguientes cálculos:
Simón: 527 SEGUNDOS
A: 31 + 62 + 93 + 124 + 155 + 186 + 217 + 248 + 279 + 310 + 341 + 372 + 403 + 434 + 465 + 496 + 527
B: 17 + 34 + 51 + 68 + 85 + 102 + 119 + 136 + 153 + 170 + 187 + 204 + 221 + 238 + 255 + 272 + 289 + 306 + 323 + 340 + 357 + 374 + 391 + 408 + 425 + 442 + 459 + 476 + 493 + 510 + 527
Carlos: 252 SEGUNDOS
A: 36 + 72 + 108 + 144 + 180 + 216 + 252
B: 42 + 84 + 126 + 168 + 210 + 252
Por lo tanto, el ganador será Carlos.