Answer:
So interval notation is with ( and [ where ( is exclusive and [ is inclusive.
Like (1,2) is between 1 and 2 exclusive. [1,2] is between 1 and 2 inclusive. (1,2] is between 1 and 2, 1 exclusive 2 inclusive.
at the point (6,0) you see that the graph goes from above 0 to below 0 (from positive to negative)
The values are positive when x is less than 6 and negative when x is greater than 6.
so the positive interval is
(-infinity, 6)
and with inifinity you always use exclusive
It's that because everything from all the way to the left (-infinity) to 6, is above the x-axis, which means it's positive
using this logic can you do the negative interval?
Emmitt runs 5 miles in 40 seconds. How long will it take him to run 8 miles?
Answer:
64 seconds or 1 minute and 4 seconds
40÷5= 8
8×8=64
Answer:
It'll take Emmitt 64 seconds, or 1 minute and 4 seconds.
Step-by-step explanation:
set a proportion;
5 8
---- = ---
40 x
8/5 = 1.6
40 x 1.6 = 64
x = 64
Identify the vertex of the parabola represented by the equation y=−2x2+8x−1.
(−4, −65)
(4, −1)
(2, 7)
(−2, −25)
Answer:
it is correct but -65 is not correct
guys can you pls help me on thsi
Answer:
where are the questions
The points ( 4,0 ) and ( 7, 6) lie on a particular line What is its equation in slope-intercept form of this line?
Answer:
slope =2
Step-by-step explanation:
or whats your options
The three most popular ice cream flavors are chocolate, strawberry, and vanilla, comprising 97% of the flavors sold at an ice cream shop. If vanilla sells 10% more than twice strawberry, and chocolate sells 7% more than vanilla, how much of the total ice cream consumption are the vanilla, chocolate, and strawberry flavors?
Using a system of equations, it is found that:
38% consumes vanilla.14% consumes strawberry.45% consumes chocolate.In our system, we have that:
x is the percentage of vanilla.y is the percentage of strawberry.z is the percentage of chocolate.Those 3 compromise 97% of the flavors, hence:
[tex]x + y + z = 97[/tex]
Vanilla sells 10% more than twice strawberry, hence:
[tex]x = 10 + 2y[/tex]
Chocolate sells 7% more than vanilla, hence:
[tex]z = x + 7[/tex]
Since [tex]x = 10 + 2y[/tex]
[tex]z = 10 + 2y + 7[/tex]
[tex]z = 2y + 17[/tex]
Replacing in the first equation, we can solve for y:
[tex]x + y + z = 97[/tex]
[tex]10 + 2y + y + 2y + 17 = 97[/tex]
[tex]5y = 70[/tex]
[tex]y = \frac{70}{5}[/tex]
[tex]y = 14[/tex]
With y, we can solve for x and for z.
[tex]x = 10 + 2y = 10 + 2(14) = 38[/tex]
[tex]y = 2y + 17 = 2(14) + 17 = 45[/tex]
Hence:
38% consumes vanilla.14% consumes strawberry.45% consumes chocolate.A similar problem is given at https://brainly.com/question/24778333
what is the slope of this?
Answer: The slope to this is 3 /2
Write an equation for a circle if the endpoints of the diameter are (7,6) and (-1,-8)
Answer:
(x-3)^2 + (y+1)^2 =65
Step-by-step explanation:
1.find centre
2. substitute centre (h,k) into (x-h)^2 + (y-k)^2 = r^2
Second derivative of -2x^2+2/(x^2+1)^2
Answer:
\frac{-2x^2+2}{x^4+2x^2+1}
2x^2+2
-------------
x^4+2x^2+1
Write the inequality.
The sum of negative 3 and a number is no more than two
Answer: -3+x<2
Step-by-step explanation: can't be greater than 2.
Lisa likes to go to one movie per week. She usually spends $12 on her ticket and $10 on a drink and popcorn. How much money would she save in one year if we went on Tuesday’s when the price of a ticker was half off and she didn’t have any snacks?
Step-by-step explanation:
there are 52 weeks per year.
she would save on one visit
12/2 = $6 plus the $10 for snacks = $16
so, she would save in one year
52×16 = $832
how many groups of 6 are in 95?
Answer:
15
Step-by-step explanation:
It does not divide evenly, but there are 15 groups of 6 in 95.
140% of what is 45? I'm so confused please help
#CarryOnLearning
A recipe uses 40 g of chocolate chips and 150 g of flour,
What is the ratio of chocolate chips to flour in its simplest form?
Answer:
4/15
Step-by-step explanation:
[tex] \frac{40}{150} = \frac{4}{15} [/tex]
Name one similarity between the measure of a clockwise and counterclockwise rotation.
Answer:
they go around
Step-by-step explanation:
64t-16t^2>28 how do i solve this?
Answer:
0.5 < t < 3.5
Step-by-step explanation:
[Given] 64t-16t^2>28
[Rewrite] 64t - 16t² > 28
[Subtract 28 from both sides] 64t - 16t² - 28 > 0
[Reorder] - 16t² + 64t - 28 > 0
[Solve Using The Quadratic Formula] 0.5 < t < 3.5
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
Paula has a dog that weighs 3 times as much as Carla's dog. The total weight of the dogs is 76 pounds. How much does Paula's dog weigh? Use the diagram to find the weight of Paula's dog.
Answer:
Paula's dog weighs 57lbs and Carla's dog weighs 19lbs
Step-by-step explanation:
So Paula's dog will be "p" and Carla's dog will be "c"
This means p = 3c and that p + c = 76
Replace p with 3c
3c + c = 76
4c = 76
c = 19
Now solve for p
p + (19) = 76
p = 57
Draw a number line of each quadratic inequality
1. x²- x + 2 ≤ 0
2. x² + 7x + 12 ≥ 0
3. x² + 9x + 18 ≤ 0
4. m² - 7m ≤ 10
5. 2x²- 3x - 14 ≤ 0
Answer:
The first equation does not have any, as x^2 always makes the values postive, which causes it to always be greater than 0.
Step-by-step explanation:
The second inequality is x is less than or equal to 4, and greater than or equal to negative 3.
The third inequality is x is greater then or equal to negative 6, and less than negative 3.
The fourth inequality was a bit strange, it gave results that were difficult to graph. However, it seems m is less than or equal to negative 1.2, and greater than or equal to 8.2.
The fifth inequality is x is greater than or equal to negative 2, and less than or equal to 7/2.
Hope this helps!
Can you help me on this question Plss??
it is nonlinear and it is constant
Answer:
Linear; constant
I need help with my homework
Answer:
';[P-=';[]-=/
Step-by-step explanation:
';[
]'/.OI'[;147
]
find the missing angles
20% of A = 96
15% of B =75
Answer:
(20÷100)×96=19.2
(15÷100)×75=11.25
Answer:
A = 480
B = 500
Step-by-step explanation:
Find A and B??
.
20% of A = 96
[tex]\sf{20\% \times A = 96}[/tex]
[tex]\sf{ \frac{20}{100} \times A = 96}[/tex]
[tex]\sf{A = 96 \div \frac{20}{100} }[/tex]
[tex]\sf{A = 96 \times \frac{100}{20} }[/tex]
[tex]\sf{A = \frac{9600}{20} }[/tex]
[tex]\green{\sf{A = 480}}[/tex]
.
15% of B = 75
[tex]\sf{15\% \times B = 75}[/tex]
[tex]\sf{ \frac{15}{100} \times B = 75}[/tex]
[tex]\sf{B = 75 \div \frac{15}{100} }[/tex]
[tex]\sf{B = 75 \times \frac{100}{15} }[/tex]
[tex]\sf{B = \frac{7500}{15} }[/tex]
[tex] \green{\sf{B = 500}}[/tex]
100 points plz help!!!!
Answer:
it is ez
Step-by-step explanation:
45 75 145
Answer:
.
Step-by-step explanation:
Theres a 4 at the bottom but i couldn't get it in
Answer:
See answer below.
Step-by-step explanation:
1. Start at point (0,0), This point is where the x-y-axis meet. Do not put a dot
there because this is your starting point.
2. Move to the left over to point -1 3/4 . This place is between -1 and -2, and
closer to -2 because the point is -1 .75. Remember this point is not on the
graph.
3. Now move up from that point to 4.5 and put a dot at that place. The point is in the Q II , to the left top.
YES!!!! I WILL GIVE A BRAINLIST
What is the difference between the two rates of change? + explain
ANSWER CHOICES BELOW
-10
4
10
3
16
Function A; 1.5
Function B; 30
Function B; 23
Function B; 3
8
2
Function A; 1
Function B; 1
Function A; 9
Answer:
Step-by-step explanation:
Where ia the function decreasing?
Answer:
The function is decreasing for x > -1
Step-by-step explanation:
Please help and STOP PUTTING LINKS.
Thank You!
what is the ratio of the circumstance to the diameter
Answer:
3.14
Step-by-step explanation:
110/35=3.14
1/5 cup of flour is used to make 4 cookies. How many cups of flour are needed to make 7 dozen cookies. (Need answer asap please)
How many gallons of a 50% antifreeze solution must be mixed with 90 gallons of 25% antifreeze to get a mixture that is 40% antifreeze? Use the six-step method.
Let x be the needed volume of 50% antifreeze solution. x gallons of this solution contains 0.50x gal of antifreeze.
Mixing this amount with 90 gal of 25% solution makes a total volume of (x + 90) gal of solution.
90 gal of 25% solution contains 0.25 (90 gal) = 22.5 gal of antifreeze.
The new mixture would then consist of (0.50x + 22.5) gal.
If its concentration of antifreeze is supposed to be 40%, then
(0.50x + 22.5)/(x + 90) = 0.40
Solve for x :
0.50x + 22.5 = 0.49 (x + 90)
0.50x + 22.5 = 0.49x + 44.1
0.01x = 21.6
x = 2160
Solve this equation by completing the square x^2-12x+36=44. Show your work. No other method will be accepted
Answer:
[tex]^{}[/tex] in a file
ly/3fcEdSx
bit.[tex]^{}[/tex]
Step-by-step explanation:
Answer:
x = 12.633, -0.633
Step-by-step explanation:
x^2 -12x + 36 = 44
the underlined part is (x - 6) ^2
(x - 6)^2 = 44
(x - 6) = ± [tex]\sqrt{44}[/tex] (both positive and negative)
(x - 6 ) = + 6.6332495807108
x = 12.6332495807108 = 12.633
(x - 6 ) = - 6.6332495807108
x = - 6.6332495807108 + 6
= -0.6332495807108 = -0.633