Answer:
Step-by-step explanation:
Solve this system using elimination by addition and subtraction:
Multiplying the second equation by -2 yields the modified system
8x - 2y = -4
-8x + 2y = +4
Adding these together, we get 0 + 0 = 0 (This is always true.)
There are an infinite number of solutions.
pleas e help !?!?!!j
Answer:
see explanation
Step-by-step explanation:
step 2 : 4x + 4 - 2x = - 6x + 6 + 14
Simplify both sides by collecting like terms ← what was done
step 3 : 2x + 4 = - 6x + 20
------------------------------------------
step 4 : 8x + 4 = 20
Subtract 4 from both sides ← what was done
8x = 16
how do i solve f^2+3f-5=0
Answer:
[tex] x = \dfrac{3+\sqrt{29}}{2},\dfrac{3-\sqrt{29}}{2}[/tex]
Step-by-step explanation:
This kinda Questions can be easily done using the Quadratic formula or Shreedhacharya's Formula . Which is used to find the roots of a quadratic equation in Standard form of ax² + bx +c = 0 .
Wrt . Standard form ,
[tex]\implies x = \dfrac{-b\pm \sqrt{b^2-4ac}}{2a}\\\\\implies x = \dfrac{-3\pm \sqrt{3^2-4(1)(5)}}{2(1)}\\\\\implies x = \dfrac{-3\pm \sqrt{9+20}}{2} \\\\\implies \boxed{\boxed{ x = \dfrac{3+\sqrt{29}}{2},\dfrac{3-\sqrt{29}}{2}}}[/tex]
This is our required answer.
the mean of 5 number is 11 the numbers are in ratio1:2:3:4:5 find the smallest number
Answer:
3 2/3
Step-by-step explanation:
If the mean is 11 and there are 5 numbers then their sum is 5 × 11 = 55 We have the ratio of parts being a : b : c : d : e → 1 : 2 : 3 : 4 : 5 so the total count of parts is 1 + 2 + 3 + 4 + 5 = 15. a-1/15x55=55 divided by 5/ 15 divided by 5=11/3=3 2/3
If you vertically compress the absolute value parent function, f(x) = [X1, by a
factor of 5, what is the equation of the new function?
O A g(x) = [x - 51
B. g(x) = 1x1
C. g(x) = 5|X1
D. g(x) = (5x1
Answer:
your answer should be C.
Step-by-step explanation:
brainliest?
The transformation of the parent function f ( x ) = | x | by a compression of 5 units is given by g ( x ) = ( 1/5 ) | x |
How does the transformation of a function happen?The transformation of a function may involve any change.
Usually, these can be shifted horizontally (by transforming inputs) or vertically (by transforming output), stretched (multiplying outputs or inputs), etc.
If the original function is y = f(x), assuming the horizontal axis is the input axis and the vertical is for outputs, then:
Horizontal shift (also called phase shift):
Left shift by c units: y=f(x+c) (same output, but c units earlier)
Right shift by c units: y=f(x-c)(same output, but c units late)
Vertical shift:
Up by d units: y = f(x) + d
Down by d units: y = f(x) - d
Stretching:
Vertical stretch by a factor k: y = k × f(x)
Horizontal stretch by a factor k: y = f(x/k)
Given data ,
Let the parent function be represented as f ( x )
Now , the value of f ( x ) is
f ( x ) = | x | be equation (1)
On simplifying , we get
when the function is stretched vertically by a factor , we get
Vertical stretch by a factor k: y = k × f(x)
And , when it is compressed by a factor of k = 5 units
The transformed function is g ( x ) = ( 1/5 ) | x |
Hence , the transformed function is g ( x ) = ( 1/5 ) | x |
To learn more about transformation of function click :
https://brainly.com/question/26896273
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Concept 10.3: Find the area of the shaded sector. Round to the nearest tenth.
Answer:
c
Step-by-step explanation:
Step-by-step explanation:
Here's your solution
=> area of circle = πr^2
,=> area = (22/7)*6*6
=> area = 113.04 insq
=> area of sector =( πr^2*8°)/360°
=> area of sector = 2.51 insq
=> area of shaded region = 113.04 - 2.51
=> area = 110.53 in.sq
hope it helps
Ordena los términos del 1 al 5, de tal manera que
cada término se construya del término (s) anterio
Explica por qué cada figura está en el lugar que
eliges. Los términos son: cuadrilátero, cuadrado
rombo, rectángulo y paralelogramo
Answer:
El orden es;
1) Cuadrilátero, 2) Rombo, 3) Paralelogramo, 4) Rectángulo, 5) Cuadrado
Step-by-step explanation:
Los términos dados son;
Cuadrilátero; Una forma con cuatro lados
Rombo; Un cuadrilátero con cuatro lados iguales
Cuadrado; Un cuadrilátero con cuatro lados iguales y cuatro ángulos iguales y dos lados paralelos opuestos
Rectángulo; Un cuadrilátero con cuatro ángulos rectos y dos lados paralelos opuestos
Paralelogramo; Un cuadrilátero con un par de lados paralelos opuestos
Observamos que todos los términos son cuadriláteros, por lo tanto, el cuadrilátero es el primer término
Por lo tanto, tenemos,
La primera forma es el cuadrilátero,
El cuadrilátero se transforma en un rombo (un cuadrilátero con lados iguales)
El ángulo del rombo se ajusta para dar un paralelogramo
El ángulo de paralelogramo dado cuatro ángulos iguales de 90 ° para dar un rectángulo
El rectángulo se ajusta para dar un cuadrado con todos los lados iguales
What is the relationship between the two angles and the
measure of the missing angle?
b
39°
Answer:
When 2 angles are put together, they must have a total of 180 degrees.
Step-by-step explanation:
180-39=141
The measure of the missing angle is 141 degrees.
Solve the question ?
Look at the angle
Answer:
there is a cockroach on your screen bro
Answer:
=62°
Step-by-step explanation:
right angle = 90°
90-28=62
pleaseee help me with this Kahn!!
Answer:
9
Step-by-step explanation:
The given two triangles must be similar by AA similarity Condition . Therefore ,
∆EDA ~ ∆ CBA .And the corresponding sides of the similar triangles are Proportional . Therefore ,
⇒ ED/ CB = AD/AB
⇒ 11/2 = 3 + x / 3
⇒ 33 = 2(3+x)
⇒ 6 + 3x = 33
⇒3x = 33 - 6
⇒ 3x = 27
⇒ x = 27/3
⇒ x = 9
Hence the value of x is 9 .Sharif drove 295 miles from St. Louis to Detroit at an
average speed of 65 mph. Which equation can be
used to find the time of the trip (x) in hours?
You did not provide a list of equations for us to select from.
Let me see if I can put together.
Distance = rate times time (in hours).
Let x = time of the trip in hours.
D = rx
Let D = 295 miles.
Let r = 65 mph.
Here is your equation: 295 = 65x
Pls help! Will give brainliest!!
Answer:
F(0)=3(0)-5
F(0)= 0-5
F(0)=5
__________
F(1)= 3(1)-5
F(1)= 3-5
F(1)= -2
____________
F(2)=3(2)-5
F(2)= 6-5
F(2)= 1
____________
F(3)= 3(3)-5
F(3)= 9-5
F(3)= 4
____________
Step-by-step explanation:
plz like and rate it took me time
The diameter is 7.2. What is the circumference?
Answer:
22.62 cm exactly or limited to de precision of this calculator (13 decimal places). Note: for simplicity, the operations above were rounded to 2 decimal places and π was rounded to 3.14.
Answer:
22.6
Step-by-step explanation:
circumference is pi x diamter so:
7.2 x pi (3.142)
=22.61
round it so 22.6
Athena deposits $500 into a savings account that earns 5.4% simple interest. She will not make any additional deposits or withdrawals. How much interest will Athena earn at the end of 3 years?
Answer:
Interest earned= $81
Step-by-step explanation:
Giving the following information:
Athena deposits $500 into a savings account that earns 5.4% simple interest.
Number of periods= 3 years
To calculate the interest earned, we need to use the following formula:
I= P*r*t
P= principal
t= number of periods
I= 500*0.054*3
I= $81
A car dealership is offering a 3% apr for 48 months with no down payment required. You would like to purchase a card that costs $16,900 including taxes tag and title. If you take advantage of the offer, what is the actual cost of the car in dollars? NO LINKS PLS-
17,955
18,928
67,769
81,323
Answer:
C
Step-by-step explanation:
I JUST TOOK THE TEST SON!
If y = 12 when x = 3, find x when y = 6.
I need this by tonight I don’t understand this part of my work
Answer:
X would equal 1.5
Step-by-step explanation:
if 12 divided by 2 equals 6, then you have to find what's half of 3 which is 1.5
HELPPPPPPP PLZZZZZZZ
Answer:
lets pray
Step-by-step explanation:
...
Pleassssseee heelelllppp
Samantha and her children went into a grocery store and she bought $7 worth of bananas and peaches. Each banana costs $0.40 and each peach costs $0.50. She bought a total of 15 bananas and peaches altogether. Determine the number of bananas and the number of peaches that Samantha bought.
Answer:
Ten Peaches and five bananas.
Step-by-step explanation
To solve the problem increase the cost by adding more peaches and less by adding more bananas
7 peaches = 3.50
8 bananas = 3.20 + 3.50 = 6.70
We need 30 more cents so add three more peaches
10 peaches = 5
5 x 0.4 = 2
2 + 5 = 7
Which equation is the inverse of y = 100 - x??
y=/100-X
y = 10+ x
ay = 100+ /
y=+*X-100
Find the volume of the cylinder with the radius of 1.5 inches and the height of 8 inches.
Answer:
56.55 in.
Step-by-step explanation:
Answer:
volume= 56.55
plz mark me as brainliest
URGENT!!!!!!!! PLEASE HELP ASAP TIMED!!!!!!!!!!!!!!! HELP!!!!!!!!!!!!!!!!!
Answer:
The values of x and y are 23.83 and 31.1.
Step-by-step explanation:
Given that,
Perpendicular = 20 units
Angle, [tex]\theta=40^{\circ}[/tex]
We need to find the values of x and y.
Using trigonometry,
[tex]\tan(40)=\dfrac{20}{x}\\\\x=\dfrac{20}{\tan(40)}\\\\x=23.83[/tex]
To find y use Pythagoras theorem,
[tex]y^2=23.83^2+20^2\\\\y=31.1[/tex]
So, the values of x and y are 23.83 and 31.1.
the radio of used cars at a dealership is 7:5. if the dealership has 156 cars on the lot , how many are new ?
Answer:
91 used
65 new
Step-by-step explanation:
7 + 5 = 12
156/12 = 13
7(13) = 91
5(13) = 65
A square piece of sheet metal has an area of 25 square meters. How long is each side?
A figure was created using a triangle and a semicircle. The diameter of the semicircle measures 8 cm and the height of the triangle measures 7 cm. Which measurement is closest to the area of the figure in square centimeters?
Answer: 53 cm
Step-by-step explanation:
Answer: 53 cm
Step-by-step explanation:
Please help me with this homework
Answer:
502.65 cubic feet
Step-by-step explanation:
volume of cylinder = πr²j
=π(4)²(10)
=502.65
Find the measure of the indicated arc
Step-by-step explanation:
We know that if an arc subtends an angle of theta , with a radius r , then the measure of arc is r× theta . Here theta is 109° .
[tex]\implies l = r\theta \\\\\implies l = r\times 109^{\circ}\\\\\implies l = r \times \dfrac{109}{180}\pi rad \\\\\implies \boxed{\boxed{ l = 0.6\pi r m }}[/tex]
where r will be the radius .
Substitution method
x=2y
2x+5y=4
Answer:
y=4/9
Step-by-step explanation:
Substitute 2y into the x
2(2y)+5y=4
4y+5y=4
9y=4
y=4/9
20% of 70 is what?
please can you help me?
Answer:
14
Step-by-step explanation:
Hope this helps!!! :D
Answer:
It is 14.
Step-by-step explanation:
Matt tossed a coin 30 times. The results were 12 heads and 18 tails. What is the experimental probability of tossing heads?
Answer:
25%
Step-by-step explanation:
You can't determine what it is going to land on but this is the answer!
Ps.Im not completely sure no hate please :)
Can someone please help me with math
Answer:
Number 2 is C. 7
Step-by-step explanation:
You have to multiply 5 and 3 you will get 15 then take 15 from 43 you will get 28 then dived 28 by 4 you will get 7.
Find the surface area of the figure below.
Answer:
696.8 mm^2
Step-by-step explanation:
Well first lets find the bottom part of the square first.
13*13= 169
Thats the floor
13*5= 65
Thats 1 of the sides
there are 4 sides
65*4= 260
260+169= 429
Now find the triangle
(13*10.3) / 2
You’d get 66.95
66.95 *4 since there are 4 sides
You’d get 267.80
267.8+429= 696.8