Answer:
2 × 3 × 3 × 5
Step-by-step explanation:
If a diameter of a circular chapati is 14 cm what is it's area
Answer:
diameter=14
radius =14/2=7
area =πr²
22/7×7²154cm²hope it helps
stay safe healthy and happy.Step-by-step explanation:
Area of circle = 2π r²
diameter is 14 cm so radius will be 7 cm
= 2 × 22/7 × 7 × 7
= 44 × 7
= 308 cm²
HELP PLS !! *brainly wont let me post unless i make it this long :,)*
Answer:
10 for number 1
2. 106
Step-by-step explanation:
each time you go your moving by one
To determine if a new pain medication if effective, researchers randonly assign two groups of people to use the pain meditation in a group 1 anf a placebo in group 2. both groups are asjed to rate their oain and the resultd are compared. What type of study is this?
A: Survey
B: Observational
C: Experinental
D: This is not a statistical question
Answer:
C: Experimental
Step-by-step explanation:
This is an experimental study because you have two separate groups (the control and experimental groups) you are comparing and manipulating the results.
Help plisss!!!! I need help for this
Answer:
G: 135
Step-by-step explanation:
The plot has a trend of increasing every year by some number so in year 1980 the participants should be more than 120 (because 1972 has 120 people) to follow the given trend. Thus, best answer is G = 135 countries.
Graph the ordered pair ( -2, 5) and its reflection over the y-axis. Name the coordinates for the reflection
Answer:
The ordered pair (-2,5) reflected over the y-axis is (2,5)
Step-by-step explanation:
What is the rate of change of the linear function that has a graph that passes through (9,2) and (3,-1)?
=================================================
Explanation:
Your teacher wants you to find the slope
m = slope
m = (y2-y1)/(x2-x1)
m = (-1-2)/(3-9)
m = -3/(-6)
m = 1/2
----------------
Extra info:
We can think of the slope as
slope = rise/run
and furthermore,
rise = change in y = y2-y1run = change in x = x2-x1Essentially we subtract the corresponding y coordinates together, subtract the x together (in the same order as the y values), then divide the differences.
Which of the following statements accurately describes the expression x+5/x^2-2
A. The product of x+5 and X2-2
B. The quotient of x2 -2 and x+5
C. The quotient of x+5 and x2 - 2
D. The product of x2 -2 and x+5
Answer:
It is C.
Step-by-step explanation:
the division sign indicates it is evidently going to be B or C. Then it's just simple knowledge.
The statement describing the expression as the quotient of x+5 and x² - 2 option (C) is correct.
What is an expression?It is defined as the combination of constants and variables with mathematical operators.
We have an expression:
[tex]= \rm \dfrac{x+5}{x^2-2}[/tex]
We can write the above expression as follows:
= (x + 5) ÷ (x² - 2)
The above expression is not in the product.
The quotient of x+5 and x² - 2
Thus, the statement describing the expression as the quotient of x+5 and x² - 2 option (C) is correct.
Learn more about the expression here:
brainly.com/question/14083225
#SPJ5
The length of a rectangle is 12y inches. The width of the rectangle is 4y + 6 inches. Find the perimeter of the rectangle in terms of y. A. 16y + 6 B. 16y + 12 C. 32y + 6 D. 32y + 12
N^6=300
This is the question
Answer:
sorry need the points
Step-by-step explanation
Expand (2+x)(2-x). If necessaty combine like terms
Answer:
Step-by-step explanation:
(2+x)(2-x)
2(2-x)+x(2-x)
4-2x+2x-x^2
4-x^2
What is the domain of y =
cos-1^x?
Answer:
A
Step-by-step explanation:
correct on edge
Answer:
A) [-1,1]
Step-by-step explanation:
The function of y=cos⁻¹(x) has a domain of [-1,1] and a range of [0,π]. Observe the graph.
i’m so confused and it would be very helpful if someone helped me or explained it to me
Answer:
uhm the x would be the -7 since she's going to be taking that off and it says she will be paying 224 so its y=-7x+224 (harder to explain than i thought, im sorry if this don't help:(..)
Answer:
y = -7x + 224
Step-by-step explanation:
First off, the m-value.
The m-value is the constant rate at which something changes. For example, if I had 43 bananas and I subtracted 7 each week, the constant rate at which it changed would be -7. Another way to think about it is the amount of something you subtract per period. According to my last example, you subtract 7 each period, which would be a week. This is also called the slope, which is the rate of change, but I'm assuming you won't analyze these graphs until later. Using the situation presented in the problem, the constant rate at which the gym subtracts from Lucy's account is -$7 per period, which is each time Lucy goes to the gym.
Secondly, the b-value, also known as the y-intercept. This is your starting point. Using my last example, I am starting at 43 bananas. Using the example from the problem, Lucy pays $224 dollars in advance to the gym. So, her starting point is $224.
(you don't need to read this if you don't want to, but it might be helpful!) The reason we use this equation is to be able to find the value of x or y at a given point. X is usually time, which is an independent variable, and y is dependent on the situation. In this one, it is how much money Lucy has spent at the gym. So, for example, if you wanted to find out how many trips to the gym it would take for Lucy to run out of her initial amount, $224, you would plug in 0 for y and solve for x.
0 = -7x + 224 *add 7x to the other side, in order to reverse the negative*
7x = 224 *divide by 7 on both sides*
x = 32 trips to the gym
Another way you could use it is if you wanted to find out how much money Lucy had left after she went to the gym 4 times. You would plug in 4 for x.
y = -7*(4) + 224
y = -28 + 224 *multiply -7 by 4*
y = 224- 28 *adding a negative is like subtracting a positive*
y = $196
Hope this helps!
PLEASE HELP EASY MATH!!!!
Answer: 20 cubic feet
Step-by-step explanation:
I did the math
Hope this helps!!
Cora and Daniel are both saving money each month. The total amount in their savings accounts is a function of the number of month
they have been saving. Each account is represented below.
Cora: y = 65x + 100, where y represents the total amount and x represents number of months
Daniel:
Answer:
Cora
Daniel
Daniel
Step-by-step explanation:
Forming equation for Daniel's saving from the plot:
Slope, m :
m = y2 - y1 / x2 - x1
m = (300 - 150) / (3 - 1)
m = 150 /2
m = 75
Intercept, c ; value of y when, x = 0
c = 75
Daniel's equation :
y = 75x + 75
Initial amout is described by intercept
Cora's intercept = 100
Daniel's intercept = 75
Rate is described by the slope
Daniel = 75
Cora = 65
So, Daniel is saving at a faster rate ; 75 to Cora's 65
Amount after 6 months :
After 6 months
y = 75*6 + 75 = $525
Cora:
y = 65x + 100
y = 65*6 + 100 = $490
A survey shows that 7 out of 8 customers are satisfied with the food served at Big Joe BBQ.
Assuming the restaurant had 176 customers yesterday, how many customers probably left unsatisfied?
I have 8 7/9 of cookies.I have 4 friends.I want to share the cookies with each of my friends equally.How much will each friend get?
Answer:
2 cookies each
Step-by-step explanation:
79/9 ÷ 4 = 79/9 x 1/4 = 79/36 = 2.2
Un hotel tiene 120 habitaciones, entre dobles i individuales. Si la cuantidad de camas son de 195, cuantas habitaciones dobles hay? Y individuales?
Answer:
45 individuales y 75 dobles.
Step-by-step explanation:
Para saber esto, debemos plantearlo por medio de un sistema de ecuaciones. En este caso las incógnitas serían el tipo de habitación, es decir, una será la habitación doble, y la otra la individual.
X: habitaciones individuales
Y: habitaciones dobles
Sabiendo eso, sabemos que sumando ambos tipos de habitaciones, dan el total de 120, por tanto, la primera ecuación será:
x + y = 120 (1)
Para la segunda ecuación, sabemos que hay 195 camas en total, que deben distribuirse en los dos tipos de habitaciones, en una habitación doble van 2 camas, mientras que en una individual va 1, por tanto:
x + 2y = 195 (2)
Ahora que tenemos las dos ecuaciones, solo resta resolverlo por alguno de los métodos conocidos de sistema de ecuaciones. En este caso, como las ecuaciones son sencillas podemos usar el método de reducción.
En la siguiente foto, está el procedimiento.
Suerte
Find the area of the wrestling mat.
Answer:
804.25
Step-by-step explanation:
The area of a circle = pi(r)^2
Given the diameter, we can find the radius by dividing the diameter in half.
r=16
pi(16)^2 = 804.25
Answer:
803.84 OR 256 pi
Step-by-step explanation:
Ok!
Step 1:
The area of a circle is Pir^2. (Sorry it’s pi r squared, I don’t have the pi symbol or the exponent function on my iPad.)
R is radius. Remember, radius is half the diameter.
32/2=16.
Step 2:
Do 16^2.
You should get 256.
Step 3:
Multiply 256 by Pi. Pi is 3.14. You should get 803.84.
Step 4:
803.84 should be the answer, I THINK (not sure) you can also write your answer as 256 pi. Depends on what your teacher wants. Hope this helps! Next time you can search up how to find the area of a circle, there are lots are tutorials!
Suppose a triangle has two sides of length 32 and 35, and that the angle
between these two sides is 120°. Which equation should you solve to find the length of the third side of the triangle?
Answer:
It is actually C, just took it and D was wrong
Step-by-step explanation:
please help i’ll give brainliest!!! thanks
Answer:
The Yangtze RiverHope that helps! :)
-Aphrodite
Step-by-step explanation:
Answer:
China's two main rivers that both helped and hurt trade are the Huang -he (or yellow ) river in the north and The Yangtze river in the south .hope it is helpful to you
If f(x)=l 2x-4 l, find f(-7).
Answer:
f(-7) = 18
Step-by-step explanation:
Add AbS in calculator
or
2(-7) = -14 (AbS) -> 14
-4 -> (AbS) = 4
14+4 = 18
Two numbers have a sum of 18, and 4 times the first number minus the second number is equal to 17. What is the smallest number?
Answer:
The smallest number is 7
Step-by-step explanation:
Using simultaneous equation;
x+y = 18.....(1)
4x-y = 17.....(2)
from equation (1)..
x+y = 18
y = 18-x...(3)
substitute y into equation (2)
4x-y = 17
4x-(18-x) = 17
4x-18+x = 17
4x+x = 17+18
5x = 35
x = 35÷5
x = 7
substitute x into equation (3)
y = 18-x
y = 18-7
y = 11
Therefore; x=7
y=11
11+7=18
(4×7)-11=17
the smallest number is 7
If a pack of ramen noodles cost $3.48 what is the unit rate (in cents)?
Answer:
348 cents per pack
Step-by-step explanation:
$3.48 348 cents
----------- or ----------------- = 348 cents per pack
1 pack 1 pack
if a dice is thrown twice, find the probability of getting two 5's.
Answer:
2 out of 12
Step-by-step explanation:
can also depend what type of dice it is
Answer:
8%
Step-by-step explanation:
Assuming it is 1-6, the probability of getting it once would be 16%. So, just divide 16 in half. 8%.
these 2 questions please for brainlest
Answer:
y = -x - 1 & y = -3x - 1
Step-by-step explanation:
Answer: 1,1 for he first one and 1/4 on the second
Step-by-step explanation: rise/ run
help PLSSSSSZSSSSSSSSSSSSSSS
Someone help me on this please
Answer:
C. The triangles are not similar.
Step-by-step explanation:
Divide the short sides and long sides to see if they are similar:
24/16 = 1.5
36/28 = 1.29
The triangles are not similar.
With Company A, you can take a 2.25 hour helicopter ride for $ 270.
With Company B, you can take a 90-minute helicopter ride for $ 180.
Which of the two helicopter companies gives you the best ride for your money?
Answer:
B
Step-by-step explanation:
A triangle has one angle measure of 55 degrees and a second angle measuring 53 degrees. What is the third missing angle measure? ______ degrees..
A triangle has a total degrees of 180, so you add 55 and 53 to get 108
then you subtract that from 180 to get 72. 72 is your answer
Answer:
72 degrees
Step-by-step explanation:
First of all, you should know that each triangle equals to 180 degrees. So just add 55 + 53 which equals 108. Then you just subtract 108 from 180 (180-108) which equals to 72 degrees.
Therefore, the third missing angle measure is 72 degrees.
Hope this helps! :)
Pick three side lengths that will make a right triangle
Side 1:_____ side 2:_______ side 3:______
Answer:
3, 4, 5
Step-by-step explanation:
3² + 4² = 5²
=> 9 + 16 = 25
=> 25 = 25
Answer:
Side 1: 6
Side 2: 8
Side 3: 10
6² + 8²
36 + 64
√100 = 10
Side 1: 3
Side 2: 4
Side 3: 5
3² + 4²
9 + 16
√25 = 5
The sum of the square of the base and height should be equal to the square of the third number.
