Answer:
a. Find y if w = -4 --- y = 14
b. Find y if w = 10 --- y = -14
Step-by-step explanation:
This is all about substitution!! For question a, we need to substitute "w" with "-4" ...
2 (-4) + y = 6
We know that a positive time a negative equals a negative...so 2 · -4 is -8.
-8 + y = 6
Now let's add 8 on both sides to isolate the variable...which equals to
y = 14
Onto question b...We substitute w with 10.
2 (10) + y = 6
= 20 + y = 6
Subtract 20 from both sides to isolate "y"
y = -14
Hope this helpsss :D
The diagram shows rays of light from a point source, P, that reach a detector, D, along two paths. One path is a straight line, while the other is bent by reflection off a mirror. What is the value of b, correct to one decimal place? Assume that all the points in the diagram lie in the same plane.
This can solved using the cosine law which is:
c² = a² + b² - 2ab cos θ
Using the values given from the problem
6² = b² + b² - 2bb cos 112.62
And solving for b
36 = 2b² - 2b² cos 112.62
b = 3.6
The answer is the 3rd option.
Answer:
b = 3.6
Step-by-step explanation:
3 to the power of 1/7
Answer: 0.42857142857
Step-by-step explanation:
16. A craft shop sold 150 pillows. Small pillows were $6.50 each and large pillows were $9.00 each. If the total amount collected from the sale of these items was $1180.00, what is the total number of each size pillow that was
sold?
Answer:
82 large pillows, 68 small pillows
Step-by-step explanation:
Suppose all pillows sold were small pillows:
150×$6.50=$975
$1180-$975=$205
$9-$6.50=$2.50
$205÷$2.50=82 (no of large pillows sold)
No. of small pillows sold
=150-82
=68
Round 159,095 to the tenths place
Answer:
159,100
Step-by-step explanation:
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Two bicyclist are 180 miles apart when they start racing towards each other. If their speeds are 14 mph and 16 mph respectively, how long will it be before they are twenty miles apart? I WILL MARK AS BRANLIEST IF YOU GOT THIS CORRECT!
Answer:
5 hours 20 minutes
Step-by-step explanation:
Distance traveled to be 20 miles apart
180 - 20 = 160 miles
Combined speed
14 + 16 = 30 mph
time = distance / speed
t = 160/30
t = 5 1/3 hours
t = 5 hours 20 minutes
Answer:
5 hours and 20 minutes
Step-by-step explanation:
it will take them 5 hours and 20 minutes.
The elevation of city A is 72 feet above sea level; the elevation of city C is 24 feet above sea level. The elevation of city D is of the elevation of city C. Simplify the expression and explain why the answer is negative or positive.
Answer: d=c/4
Step-by-step explanation:
P(x) = 4x3 + 5x + 9, D(x) = 2x + 1
Two polynomials P and D are given. Use either synthetic or long division to divide
P(x)
by
D(x),
and express P in the form
P(x) = D(x) · Q(x) + R(x)
(Please help!) Which table shows a function that is decreasing only over the interval (–1, ∞)?
Answer:
Table DStep-by-step explanation:
Lets verify is the function is decreasing in the given interval.
Table A-5, -2, -1, 2 ⇒ this is increasing, noTable B-7, -6, -1, 1 ⇒ this is increasing, noTable C-1, 2, 1, -6 ⇒ this is neither increasing, nor decreasing, noTable D1, 0, -4, -8 ⇒ this is decreasing, yesLisa bought a refrigerator on sale for 50% off the original price, for $235. What was the original price before the sale?
Answer:
470$Step-by-step explanation:
50% = 1/2
235 * 2 = 470
5(x + y)2 + (x + y) − 4
Answer:
11x+11y-4
Step-by-step explanation:
Anyone know thisss
its math
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The Correct choice is :
[tex]y - 2 = - 3(x - 2)[/tex]Plz help I need help
Evaluate the expression when a=1- and c =4
a+9c=
Answer:
35
Step-by-step explanation:
1-9(4)
1-36
two less than seven times a number c
btw this is write the phrase as an algebraic expression
Answer:
3c-2
Step-by-step explanation:
Hope it helps!!!!!!!
What do I do?
Backstory)) Today as I was waking to lunch with a few people that were my so called friends, they are in the dance team and they wanted to go and help sell tickets there was one small table to sell tickets. But the thing is that there is only room for about 4 people on that table but they fit 7 which logically I think we all know that 7 people don’t need to sell tickets, only if 2 people actually bought tickets
So as we entered the cafeteria I followed them (I am not on the dance team) they went to that very table then I asked the obvious question where should I sit? Cause there want room for me. Then one of my friends pointed at an empty table and told me to sit there. I sit there the whole lunch eating only a few. I am stressed when nobody is next to me eating which causes me to eat less. Cause I feel everyone is staring at me. So I act like I am fine. Then after that we had some free time. I went to the bathroom the whole free time to just cry. But the thing is as the free time started they didn’t come and get me they just walked off so that’s why I went to the restroom and stayed in there for a little till the bell rang.
So what should I do they are going to do the same thing tomorrow and I am getting stressed cause I have no other friends to sit with.
Answer: I would see the councilor and see if that can help thats what I did they gave me option and I also could have had a pass to eat with a teacher or I could eat in there office :)
i have so many points help me
Divide.
(−15)÷(−45)
What is the quotient?
Enter your answer as a simplified fraction in the box.
Help help please please
Step-by-step explanation:
s=9×8/6
s=12.
hope this helps you.
Answer: 12
Step-by-step explanation:
using ratio;
[tex]\frac{6}{9}=\frac{8}{x}[/tex]
[tex]\frac{2}{3}=\frac{8}{x}[/tex]
[tex]x=\frac{(8)(3)}{2}[/tex]
[tex]x=\frac{24}{2}[/tex]
[tex]x=12[/tex]
please give me a brainliest answer
La barbería El Caleño, tiene en promedio 120 clientes a la semana a
un costo actual de $6000 por corte de cabello. Se sabe que por cada incremento
de $700 en el precio, la peluquería pierde 10 clientes. ¿Cuál es el precio máximo
que puede cobrarse de modo que los ingresos semanales no sean menores que los
actuales?
Queremos maximizar el precio de tal forma que los ingresos no disminuyan.
Ese maximo precio es: $14,040.6
Sabemos que actualmente el precio es:
p = $6,000
El número de clientes es:
C = 120
Actualmente los ingresos son el producto de esos dos números, es decir:
ingresos = $6,000*120 = $720,000
Ahora sabemos que por cada incremento de $700 en el precio, el número de clientes decrece en 10.
Entonces podemos escribir el número de clientes como una ecuación lineal.
C(p) = a*p + b
tal que tenemos dos puntos en esa linea:
($6,000, 120)
($6,700, 110)
La pendiente es:
[tex]a = \frac{110 - 120}{\$6,700 - \$6,000} = \frac{-10}{\$ 700}[/tex]
Entonces tenemos:
C(p) = (-10/$700)*p + b
Sabemos que:
C($6,000) = 120 = (-10/$700)*$6,000 + b
120 = -85.71 + b
120 + 85.71 = b =
Entonces la ecuación lineal es:
C(p) = (-10/$700)*p + 205.71
Los ingresos serán dados por:
ingresos = C(p)*p = (-10/$700)*p^2 + 205.71*p
Y queremos maximizar p de tal forma que esto sea igual a lo que obtuvimos antes:
(-10/$700)*p^2 + 205.71*p = $720,000
Entonces debemos resolver la ecuación cuadratica:
(-10/$700)*p^2 + 205.71*p - $720,000 = 0.
Las soluciones son dadas por la formula de Bhaskara.
[tex]p = \frac{-205.71 \pm \sqrt{(205.71)^2 - 4*(-10/\$ 700)*\$ 720,000} }{2*(-10/\$ 700)} \\\\p = \frac{-205.71 \pm 195.45}{(-20/\$ 700)}[/tex]
La solución de maximo valor es:
p = (-205.71 - 195.45)/(-20/$700) = $14,040.6
Sí quieres aprender más, puedes leer.
https://brainly.com/question/8926135
PLEASE HELP ITS MATH THANK YOUUUU HURRY
The graph of y=3x+2x-2^2 is shown. A) what are the coordinates
Will mark BRAINELIST please answer both!!
Answer:
(
2
,
8
)
Explanation:
Two lines are parallel if they share the same slope.
Any line parallel to
y
=
10
x
will have the slope 10.
Now, we have:
y
=
3
x
2
−
2
x
We try to find
d
y
d
x
=>
d
d
x
(
y
)
=
d
d
x
(
3
x
2
−
2
x
)
Step-by-step explanation:
cuantos paquetes de 5/8 de kilo harán falta para envasar 125 kilos de harina
Step-by-step explanation:
dcfhhjjvcdddfhjkhfsazgjhsswrup07532490ojdhj
6x < 36
what is the right answer
X< or >6
Answer:
X < 6
Step-by-step explanation:
Since 6 times 6 = 36, then for this equation to be true, x would have to be less than 6.
help me please!!!!!!!!!!!!!!
Answer:
7√ 121
Step-by-step explanation:
the 4.1 m of concrete is made into the shape of a cylinder. The base has radios 0.5 metres. work out the height of the cylinder ( photo attached)
Answer:
5.22m
Step-by-step explanation:
Rearrange the formula - volume = π × r² × h:
h = volume ÷ (π × r²)
volume = 4.1m³r = 0.5Plug in the numbers:
h = 4.1 ÷ (π × 0.5²)
h = 5.22028... ≈ 5.22m
Hope this helps!
please help me with this sum
Answer:
391 × 5 = 1955
621 × 3 = 1863
481 × 7 = 3367
531 × 6 = 3186
981 × 2 = 1962
761 × 9 = 6849
581 × 8 = 4648
431 × 3 = 1293
271 × 4 = 1084
821 × 4 = 3284
What is the advantage of paying your credit card balance in full each month?
You will incur only a small "paid in full" fee on your next credit card statement.
You pay only a small amount of interest.
You have less of your credit limit available, therefore, less temptation to spend.
You avoid paying any interest and fees.
Answer:
Step-by-step explanation:
It's the third one. You avoid paying fees and interest. Smart people keep their credit cards at a zero balance for just that reason. Moral: don't buy what you cannot afford to pay off immediately.
Answer: It's C , "You have less of your credit limit available, therefore, less temptation to spend"
Step-by-step explanation:
can you find the lengths and area and type the correct code? Please remember to type in all caps with no space
Answer:
EGFB
Step-by-step explanation:
To find the lengths of PQ and RS, we can use the Pythagorean Theorem, becasue both triangles have right angles. Base x height equals the area of the rectangle, and base x height divided by 2 gets us the height of the triangle. Thus:
1. 233 meters
2. 21, 840 square meters
3. 241.87 meters
4. 12, 600 meters
Hope this helps.
Can someone help answering my questions in English and Math
Answer:
yo
Step-by-step explanation:
find reason and statements
Answer:
Missing reason/statements:
R1, R2, R3 - GivenS4. ∠1 ≅ ∠3R4. Transitive propertyR5. Definition of congruenceS6. m∠1 = 120°R6. Substitution
Find the perimeter of the
triangle.
16% + 16) cm
(9%-11) cm
Answer:
Step-by-step explanation:
Three equal sides, so lets find one by solving for x
6x + 16 = 9x-11
-3x = -27
x = 9
6(9) + 16 = 70
9(9) - 11 = 70
70(3) = 210 cm