Answer:
Yes
Step-by-step explanation:
The intersection point of 10x+4y=18 and x+9y=19 is (1,2) on a graph.
PLEASE HELP ASAP!!
When retested on the WAIS, people's second scores generally match their first scores
quite closely. This indicates that the test has a high degree of:
A. Heritability
B. Content validity
C. Predictive validity
D. Reliability
Answer:
D. Reliability
Step-by-step explanation:
Answer:
the answer is b because the same score means more validity
Write an equation of the line passing through point P(2, 3) that is perpendicular to the line y -4 = -2(x+3)
10 (4p - 2k)(3)
In distributive property?
Answer:
10 ( 12p - 6k)
Step-by-step explanation:
4p x 3 = 12p
2k x 3 = 6k
you cannot subtract 12p and 6k bcuz they do not have the same variables.
If I work at a store for $9/hour and get paid every week. How much would I make for 3 months?
Answer:
You'll be making approximately $4,320.00 after 3 months. Approximately because I assumed you have an 8-hour shift, 5 working days and 4 weeks in a month. If there are other cases like 6 working days, just replace 5 with 6 and recompute.
Step-by-step explanation:
[tex] \frac{9 \: dollars}{hour} \times \frac{8hours}{day} \times \frac{5days}{week} \times \frac{4weeks}{month} \times 3months \: = 4320 \: dollars[/tex]
if two angles in a triangle are 40° and 30°, then the third angle measures 110
Answer:
Si
Step-by-step explanation:
Sam runs 6 miles in 45 minutes. At the same rate, how many minutes would he take to run 4 miles?
Answer:
It would be 30 mph
Step-by-step explanation:
45/6=7.5
7.5*4=30
Answer:
30 minutes
Step-by-step explanation:
Each mile takes him 7 minutes 30 seconds. So you will do 7.5 x 4 to get 30 minutes
Luci Lulu opened a cookie store in the mall. She found that the relationship between the price of a cookie, p, and the number of cookies sold, x, is given by the linear relationship x = −2000 p + 4000 . Find the maximum revenue Luci can make selling cookies in one day. Find the price she should sell the cookies for to make the maximum revenue.
Answer:
The price to make maximum revenue is 1 and the maximum revenue is 2000.
Step-by-step explanation:
Consider the provided information.
Revenue is the product of the number of sales and the sales price.
Here, [tex]p[/tex] is the price of a cookie and the number of cookies sold is [tex]x =- 2000 p + 4000[/tex].
[tex]\text{Revenue}=p(-2000 p + 4000)[/tex]
[tex]\text{Revenue}=-2000 p^2 + 4000p[/tex]
The above equation is a quadratic equation and the graph of the above equation will be a downward parabola because the coefficient of [tex]p[/tex] is negative.
The vertex(axis of symmetry) of a downward parabola has the maximum point.
The axis of symmetry is [tex]x=\frac{-b}{2a}[/tex] for the quadratic equation [tex]ax^2+bx+c=0[/tex].
By compare Revenue equation with [tex]ax^2+bx+c=0[/tex], we get:
[tex]x=p, a=-2000, b=4000 \text{ and } c=0[/tex]
Now put the respective values in the formula [tex]x=\frac{-b}{2a}[/tex] .
[tex]p=\frac{-4000}{2(-2000)}[/tex]
[tex]p=1[/tex]
So revenue will be maximum for [tex]p=1[/tex].
Now put [tex]p=1[/tex] in [tex]\text{Revenue}=-2000 p^2 + 4000p[/tex]
[tex]\text{Revenue}=-2000 (1)^2 + 4000(1)[/tex]
[tex]\text{Revenue}=-2000 + 4000[/tex]
[tex]\text{Revenue}=2000[/tex]
Hence, the price to make maximum revenue is 1 and the maximum revenue is 2000.
Maximum revenue generated = $2000
Price at which the maximum revenue is generated = $1
Maximization of the revenue:
Steps to find the maximum revenue,
Find the equation for the revenue generated.Find the derivative of the expression for revenue and equate it to zero.Find the value of the variable and substitute it in the expression for the revenue generated.Given in the question,
Price of one cookie = p Linear relationship between the number of cookies sold 'x' and price of a cookie 'p',x = -2000p + 4000
Expression for the revenue generated = Price of one cookie × Number of cookies sold
R = p(-2000p + 4000)
R = -2000p² + 4000p
For the maximum revenue,
"Find the derivative of the expression for revenue and equate it to zero"
R' = -4000p + 4000 = 0
4000p = 4000
p = $1
For p = 1,
R = -2000(1) + 4000
R = $2000
Therefore, for the price of one cookie as $1, maximum revenue generated will be $2000.
Learn more about the maximization here,
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which is a factor pair of 72?
A) 12,6
B) 14,5
C)23,4
D)24,2
Answer:
the answer is A) 12,6. .
Step-by-step explanation:
.
PLEASE HELP I NEED THE ANSWER QUICK!!!
What is the Length/ value of N
Answer:
n = 104
Step-by-step explanation:
Answer:
n = 104
Step-by-step explanation:
I need help solving this practice question
[tex]3x-9=45\\3x=45+9\\3x=54\\x=18[/tex]
Fun fact
Bananas are curved because they grow towards the sun ☀️
Answer: the answer is 18
Step-by-step explanation:
Please help me with this question!!
Answer:acute
Step-by-step explanation:
solve the system by graphing.
y = -x + 5
y = x + 1
Step-by-step explanation:
the answer from the graph is:
(2 , 3)
What is 9,000.000.000.000.000.000.X 12.000.000.000.000.000.000.000.000.000.000
Answer:
108000.
Step-by-step explanation:
9,000 x 12
Twice the difference of a number and 4 is 3.
NEED HELP ASAP WILL GIVE BRAINLIEST! :)
Answer:
it adds up to 180 so the missing parts would be whats left.
Step-by-step explanation: 35 +105=( you fill it in)
the numbe you filled in minuse 180
Jody works at an ice cream counter. The ice cream costs $3 per cone. Let c represent the number of ice cream cones she sells. Let p represent
the total cost paid by the customers.
Choose two correct statements about the variables in this situation,
A. The cost per cone depends on the number of cones sold.
B. The total cost paid by customers depends on the number of cones sold,
O c The number of cones sold is independent of the total cost paid by customers.
D. The total cost paid by customers is independent of the number of cones sold,
Answer:
B and C are correct Hope this helps <3
Step-by-step explanation:
Answer:
B and C?
Step-by-step explanation:
Im a little unsure about C but im about99% sure that is correct
Can someone help me? And explain it to me pls<3
need a quick answer please
Answer:
-3, 6
Step-by-step explanation:
This one was on my unit test
Find Percent of Change
1.) 200 to 500.
is the answer 40?
if not please explain...
Answer: I think it is
Step-by-step explanation:
Answer:
150% increase
Step-by-step explanation:
Calculate percentage change
from V1 = 200 to V2 = 500
(V2−V1)|V1|×100
=(500−200)|200|×100
=300200×100
=1.5×100
=150%change
=150%increase
Add. Write your answer as a mixed number in simplest form.
6 5/6 + 2 1/9
Answer: 8 17/18
Step-by-step explanation:
6 5/6 + 2 1/9
Turn to improper fractions
41/6 + 19/9
Find LCM
LCM = 18
123/18 + 38/18 = 161/18
8 17/18
Please answer will give the point thing
What is the solution to the system of equations graphed below?
y = -2x + 4
-5
5
y = x-5
O A. (3,2)
B. (0,4)
C. (3,-2)
D. (0,-5)
Please help
Answer:
C. (3,-2)
Step-by-step explanation:
The distance from the bottom of a ladder to the wall it leans against is one-fourth of the length of the ladder. If the ladder is 12 feet long, how far up the wall will the ladder extend?
Answer:
The ladder will extend 11.6ft up the wall
Wall will the ladder extend 11.6 ft
What is Pythagoras theorem?The Pythagoras theorem states that in a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
Given
Length of the ladder = 12 ft
Distance from the bottom = 1/4 of length of the ladder
= [tex]\frac{1}{4}[/tex] × [tex]12[/tex]
= 3 ft
By using Pythagoras theorem
[tex]12^{2}=x^{2} +3^{2}[/tex]
[tex]x^{2} =144-9[/tex]
[tex]x^{2} =135[/tex]
[tex]x=\sqrt{135}[/tex]
[tex]x=[/tex] ± 11.6 ft
Hence, wall will the ladder extend 11.6 ft.
Find out more information about Pythagoras theorem here
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15 inches.......3 inches Which measurement is closest to the total surface area of the container in square inches?
Answer:
[tex]Area = 339.29\ in^2[/tex]
Step-by-step explanation:
Given
See attachment
Required
Determine the total surface area
From the attachment:
[tex]r = 3\ in[/tex] --- radius
[tex]h = 15\ in[/tex] --- height
The total surface area:
[tex]Area = 2\pi r(r + h)[/tex]
Substitute values for r and h
[tex]Area = 2\pi * 3(3 + 15)[/tex]
[tex]Area = 2\pi * 3(18)[/tex]
Remove bracket
[tex]Area = 2\pi * 3 * 18[/tex]
[tex]Area = 2\pi * 54[/tex]
[tex]\pi = \frac{22}{7}[/tex]
So, we have:
[tex]Area = 2 * \frac{22}{7} * 54[/tex]
[tex]Area = \frac{2 * 22 * 54}{7}[/tex]
[tex]Area = \frac{2376}{7}[/tex]
[tex]Area = 339.42[/tex]
Hence, the closest is:
[tex]Area = 339.29\ in^2[/tex]
The temperature is -2 °C. If the temperature rises by 15 °C, what is the new temperature?
Answer:
The answer is 13°C because 15-2 gives you 13
Step-by-step explanation:
write 6(9+2k)= -3 in written form
Answer:
27k+3=0
Step-by-step explanation:
Write in standard form.
this way?
To rent a certain meeting room, a college charges a reservation fee of $34 and an additional fee of $9.30 per hour. The math club wants to spend less than $99.10 on renting the meeting room.
What are the possible amounts of time for which they could rent the meeting room?
Use t for the number of hours the meeting room is rented, and solve your inequality for t.
Answer:
9 hours.
Step-by-step explanation:
31 + 5.9*t < 84.10.
To solve it, collect the constant terms on the right side:
5.9*t < 84.10 - 31 = 53.10,
Hence, t < 53.10%2F5.9 = 9 hours.
Answer:
7 hours
Step-by-step explanation:
99.10-34=65.1
65.1 divide by 9.30=7
Hope this helps!!
A cereal factory purchases chopped
almonds in bags weighing 5 pounds
cach. A factory machine adds
pound of the chopped almonds to
each box of Almond Crunch cereal.
If the factory plans to produce 1,200
boxes of Almond Crunch cereal, how
many bags of chopped almonds does
the factory need to purchase?
Answer:
need poi
Step-by-step explanation:
Answer:
1,200 /5
Step-by-step explanation:
If $5,000 is invested at 6% interest, how much money must be invested at 8% interest so that the total interest from the two investments is $660 after one year?
Answer:
$4500
Step-by-step explanation:
Simple Interest formula = Principal × Rate × Time
Let the amount of the money invested at 8% Interest = x
Hence:
$5000 × 6% × 1 + x × 8% × 1 = $660
$300 + 0.08x = $660
0.08x = $660 - $300
0.08x = $360
x = $360/0.08
x = $4500
Therefore , the amount that must be invested at 8% interest is $4500
WILL MAKE BRAINLIEST
The Point of Concurrency made from medians is a(n):
Answer:
centroid
Step-by-step explanation: