Answer:
Symbol for definite integralThe ∫ symbol is called an integral sign; it's an elongated letter S, standing for sum. (The ∫ is actually the Σ from the Riemann sum, written in Roman letters instead of Greek letters.) The dx on the end must be included; you can think of∫ and dx as left and right parentheses.
Evaluate Functions From a Graph
Answer:
f(-2) = -2
Step-by-step explanation:
Start on the graph at the center, (0,0), right where the x- and y-axis cross.
The numbers on the x-axis are the x's (look left or right) The problem says to find f(-2). This means let x = -2. So skip over to the left to where x = -2, then go down until you run into the curve. You have to look at the y-axis to find the numerical answer.
Here are some other ones on this graph, to see if you can see how this works. **These two -2's are totally different. The answer -2 is not because the problem had a -2 in it.**
other examples on this graph:
f(-1) = -3
f(0) = -2
f(1) = 1
f(-3) = 1
f(-4) = 6
f(2) = 6
Hope this helps!
Obviously, different graphs will give different answers.
Please help me I’m giving 20 points
Answer:
The answer is B
Step-by-step explanation:
Find the axis of symmetry
Use the formula -b/2a
2x^2-8x+6
- (-8)/2(2)
8/4
2
The axis of symmetry is at x=2, which means that the vertex is at x=2
Substituting x=2 into the quadratic:
2(2)^2-8(2)+6
2*4-16+6
8-16+6
-2
The vertex is at (2,-2)
The graph where this applies is B.
Therefore, the answer is B.
help me with geometry please
Answer:
30+25=55°
180-55=125°
x=125°
180-125=55°
y=55°
Answer:
y = 55
solution:
180-30-25=125
180-125=55
54 first-graders and 546 other students attended a school assembly. What percentage of the students at the assembly were first-graders?
Answer:
9 percent
Step-by-step explanation:
the total students were 600. 5r were first graders. they were both divisible by 6 so i simplified it into 9 first graders for 100 total students. this is then turned into a percentage which was 9 percent.
does this deserve a brainliest ?
48 is 80% of what amount?
Answer:
The answer is 60 just divide 80/48.
1. What is the slope of the line that passes through the points (-2, -3), and (5, 4)?
-1
3
1
-3
60 points if you give me the answer with an explanation, please!
Hi!
I can help you with joy!
We are given 2 points: (-2, 3) and (5, 4), so we can easily calculate the slope of this line using this formula:
[tex]\displaystyle\frac{y2-y1}{x2-x1}[/tex]
[tex]\displaystyle\frac{4-(-3)}{5-(-2)}[/tex]
[tex]\displaystyle\frac{4+3}{5+2}[/tex]
[tex]\displaystyle\frac{7}{7}[/tex]
[tex]1[/tex] (Answer)
I hope it helps!
Ask if you have any queries.
~Misty~
[tex]\bf{GracefulTeen[/tex]
Enjoy your day!
What is half of 1 ⅔ cups
Answer:
0.833
Step-by-step explanation:
Because 1 and 2/3=1.666
0.833 x 2=1.666 so that's how it's your answer
Have a great day :}
A soccer team is taking 16 people to a match in 4 cars. The owners of the cars drive their own cars, and each takes 3 other players as passengers. In how many ways can this be done? Could you please help me with a step-by-step explanation?
Answer:
12
Step-by-step explanation:
The numbers of choices for each of B, C, D are independent of the choices the predecessors have made. It is clear where the car's owners will sit, so all we have to care about is where we put the other people. There are 16−4=12 places left in the cars, so there are 12!
there are 37,747,920,000 ways the soccer team can be taken to the match.
Let's break down the problem step by step to calculate the number of ways the soccer team can be taken to the match:
Step 1: Select the drivers for the cars.
There are 4 cars, and the owners of the cars will be the drivers. We need to choose 4 drivers from the 16 people, and this can be done using combinations. The number of ways to choose 4 drivers out of 16 is denoted as C(16, 4), which can be calculated as follows:
C(16, 4) = 16! / (4! * (16-4)!)
C(16, 4) = 16! / (4! * 12!)
C(16, 4) = (16 * 15 * 14 * 13) / (4 * 3 * 2 * 1)
C(16, 4) = 1820
There are 1820 ways to select 4 drivers for the cars.
Step 2: Assign passengers to the cars.
After selecting the drivers, each driver will take 3 other players as passengers. Since there are 3 passengers for each driver, we can calculate the number of ways to assign passengers to the cars using combinations again.
Number of ways to assign passengers to one car = C(12, 3) = 12! / (3! * (12-3)!) = 12! / (3! * 9!) = 220.
Since there are 4 cars, the total number of ways to assign passengers to the cars is 220^4 = 20,736,000.
Step 3: Combine the driver selection and passenger assignment.
To find the total number of ways the soccer team can be taken to the match, we need to multiply the number of ways to select the drivers (1820) by the number of ways to assign passengers (20,736,000):
Total number of ways = 1820 * 20,736,000 = 37,747,920,000.
So, there are 37,747,920,000 ways the soccer team can be taken to the match.
Learn more about combination here
https://brainly.com/question/12538996
#SPJ2
There are 3 cats in a room and no other creatures. Each cat has 2 ears, 4 paws, and 1 tail.
Complete this statement:
The ratio of paws and tails to ears is
to ears is?
Answer:
The ratio of paws and tails to ears is 5:2
Step-by-step explanation:
First add the amount of paws as tails per cat together to get 5
Then find the amount of ears per cat to get 2.
For every cat, there is a total of 4 paws and 1 tail, to every two cat ears.
therefore, 5:2
5:2
Step-by-step explanation:
what is the gift for 24+3d?
The gift would be $27 dollar
PLEASE HURRY AND SOLVE!!!!
Answer:
The constant of proportionality is 6
Step-by-step explanation:
Recall the equation for direct variation is [tex]y=kx[/tex] where [tex]y[/tex] varies directly with [tex]x[/tex] and [tex]k[/tex] is the constant of proportionality. If we take any listed coordinate point, we can determine the value of [tex]k[/tex]. I will use (20,120) as an example:
[tex]y=kx\\\\120=k(20)\\\\6=k[/tex]
Therefore, the constant of proportionality is 6
On a balance scale, five spools and three thimble balance sixteen buttons. Also, three spools balance one thimble and four buttons. How many buttons will balance one thimble?
Answer:
2 buttons
Step-by-step explanation:
Let s = spool, t = thimble, b = button
5s + 3t = 16b
3s = 1t + 4b
5s + 3t = 16b
3s - t = 4b
-15s - 9t = -48b
(+) 15s - 5t = 20b
------------------------------
-14t = -28b
t = 2b
Answer: 2 buttons
HELP PLEASE! Find the area of the figure.
Answer: 36 square units.
Step-by-step explanation:
First, you can separate the figure into a 4x6 rectangle and a 6x4 isosceles triangle. You can find the area of the rectangle by using the rectangle area formula, A = l x w .
4 x 6 = 24 units
Then, to find the area of the triangle, you can use the triangle area formula, A = [tex]\frac{1}{2}[/tex] b x h .
1/2 x 4 x 6 = 12 units
Finally, you can simply add 24 + 12 to get the total area of 36 units. Since the area is the measure found, you would use the square symbol (²) at the end of the units:
36 units²
I hope this helps!
1) If the polygon is regular, how do you find the measure of each exterior angle in the polygon?
Ferb wanted to measure the height of a tree. They walk exactly 37 feet from the base of the tree and look
up. The angle of elevation from the ground to the top of the tree is 46º. To the nearest whole number, how
tall is the tree?
please help me i cannot figure it out
6z +3 - 2z +5=
this is what i cannot figure out
Answer:
4z+8
Step-by-step explanation:
combine your like terms
6z-2z=4z
3+5=8
Using fraction busting solve for X
1/x² + 1/x = 6/x²
Pls help I need help
Answer:
SO THIS IS PRODUCT LAW, IF BASES ARE SAME, WE JUST ADD THE EXPONENTS.
t^x×t²=t¹⁰
t^(2+x)=t¹⁰
2+x=10
x=10-2
x=8
verifying the answer
x=8
t⁸×t²=t¹⁰
8+2=10
10=10
hence correct.
hope it helped.
please pick me brainliest
Change the function f(x) = –2x² + 12x – 6 into vertex form.
A f(x) = -2(x – 3)2 – 24
b f(x) = -2(x - 3)2 – 6
C f(x) = -2(x - 3)2 + 12
D f(x) = -2(x – 36)2 – 30
Answer:
i think is letter c
i hope is correct
4. Find the volume of the rectangular prism.
16 cm
6 cm
12 cm
Answer:
1152
Step-by-step explanation:
Look at the picture I put in
Carbon-14 has a half-life of approximately 5,730 years. This exponential decay can be modeled with the function N(t) = N0.
If an organism had 200 atoms of carbon-14 at death, how many atoms will be present after 14,325 years? Round the answer to the nearest hundredth.
[tex]\textit{Amount for Exponential Decay using Half-Life} \\\\ A=P\left( \frac{1}{2} \right)^{\frac{t}{h}}\qquad \begin{cases} A=\textit{current amount}\\ P=\textit{initial amount}\dotfill &200\\ t=\textit{elapsed time}\dotfill &14325\\ h=\textit{half-life}\dotfill &5730 \end{cases} \\\\\\ A=200\left( \frac{1}{2} \right)^{\frac{14325}{5730}}\implies A=200\left( \frac{1}{2} \right)^{\frac{5}{2}}\implies A\approx 35.36[/tex]
I need help in this question!!
Answer:
1st, 4th , 5th
Step-by-step explanation:
Multiplying any number by a proper fraction gives a value that is less than the original number.
From the list this applies to
1st , 4th and 5th options
Can you help me please?
Answer:
3 3/5
Step-by-step explanation:
What graph represents the function f(x)=-x^2+5
Answer:
The first graph
Step-by-step explanation:
I also attached a graph
Hope this helps!
WILL GIVE BRAINLY 15 points
Sally has a game piece shaped like a square pyramid. The dimensions are shown in the net.
What is the surface area of Sally's game piece?
Answer:
56
Step-by-step explanation:
If you place a 28-foot ladder against the top of a 22-foot building, how many feet will the bottom of the ladder be from the bottom of the building? Round to the nearest tenth of a foot.
Step-by-step explanation:
Pythagoras
c² = a² + b²
with c being the Hypotenuse (the side opposite of the right angle), which is in our case the ladder.
28² = 22² + b²
784 = 484 + b²
b² = 784 - 484 = 300
b (the distance of the ladder from the wall) = 17.32050808... ft ≈ 17.3 ft
The number of buttons a machine produces varies directly as the time it is
running. If the machine produces 688 buttons in 12 min, how many would it
produce in 15 min?
Answer: 860 buttons
Step-by-step explanation: 688/12 = 57.3333333...
57.3333... multiplied by 15 is equal to (860 buttons)
HELPP URGENT NEED MY GRADE TO GO UP!!!! PLEASE HELPP!!
Use the graph to predict how many gallons are left in the tank if you drive 150 miles.
About 8
About 10
About 12
About 15
Answer:
so $90
about 10
The amount of pay received if the sales are $ 150 can read in the graph by first locate 150 in the axis because the x axis represent the sales and the y is pay. After locating go straight up to the line and read its y value and it is about $90
If you drove 150 miles the amount of gallons in the tank is about 11
im sorry if im wrong
3. A square room has a width of 3m. It will be tiled with rectangular tiles 90cm x 20cm
How many tiles will be needed to cover the entire space?
Step-by-step explanation:
I can't solve this one but I'll leave my comment for your question to reach more people
Answer:
300
Step-by-step explanation:
total entire area 6 * 3* 3 = 54
area of tiles = 0.90* 0.20 =0.18
so tiles number = 54/0.18 = 300
A small restaurant named the Pizza Palace had a food critic try their pizza and wrote them a very, very bad review. The function C=500 x 2/3^m represents the number of customers they have based on the m months since the review came out. Which statement below best describes what the equation tells us. How many customers would the restaurant expect to still have 2 months after the review comes out?
The statement which describes what the equation tells is; The number of customers they have prior/before the review is; 500 customers.
The number of customers they have 2 months after the review is; 222.22 customers.Exponential functionsAccording to the given function;
The intercept of the function represents the number of customers the restaurant has prior to the review.This means the number of customers they have prior/before the review (at m=0) is; 500 customers.
Additionally, after 2 months of the review;
C = 500 × (2/3)^2C = 500 × 0.44C = 222.22 customers
Read more on exponential functions;
https://brainly.com/question/2456547