Answer:
In order to simplify improper fractions
1. Multiply the denominator and the whole number.
2. Add the numerator to the product.
3. Keep the denominator the same.
4. Easily simplify your solution
Step-by-step explanation:
And for proper fractions, just simplify by finding the GCF and divide Numerator by denominator.
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Which measure describes the standard error of the mean? A. the central limit theorem B. the sample mean C. the confidence interval D. the standard deviation of the means
Answer:
Correct answer: (Standard Deviation of means)
Step-by-step explanation:
#platolivesmatter
Hoped this helped! XD
The standard deviation of the means measure describes the standard error of the mean
Statistic is the study of mathematics that deal with relations between comprehensive data.
A standard deviation (or σ) is a measurement of how spread the information is in relation to the mean. A lower standard deviation means data are bunched around the mean, and a high standard deviation implies data are more scattered out, and best describes the error related to or around the mean.
From the above definition it is clear that standard deviation of the means measure describes the standard error of the mean.
Thus, the standard deviation of the means measure describes the standard error of the mean
.
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Which measure describes the standard error of the mean to be determined from the option given below.
A. the central limit theorem B. the sample mean C. the confidence interval D. the standard deviation of the means
There are 20 red balls, 20 blue balls, 10 green
balls, and 25 yellow balls. Her first selection is red and her second selection is green,
what is the probability that her third selection is blue given that she did not replace
the first two balls? Answer as a fraction in simplest form.
If the discriminant of an equation is 10, then the roots are
A) real, rational, and unequal
B) real, irrational, and unequal
C) real, rational, and equal
D) imaginary
Answer:
b
Step-by-step explanation:
Since the given discriminant is 10, hence the roots will be real, irrational, and unequal
Discriminant of an equation
The discriminant is used to determine the nature of the roots of a quadratic equation. The formula for finding the discriminant is expressed as:
D = b^2 - 4ac
If D > 0, the nature of the roots are real, irrational, and unequal If D < 0, the nature of the roots are imaginarySince the given discriminant is 10, hence the roots will be real, irrational, and unequal
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Solve 3x + 7 > -x - 9
I HAVE A MATH TEST PLZ HELP I'M GIVING OUT 50 POINTS PLZ
S.O.S I HAVE MATH
Answer:
Graph included as picture
Step-by-step explanation:
To solve this, plot the given points on the graph
Draw a line through them.
Now select two of those values and we'll find the rate of change.
We'll be using (1,-1) and (3,3)
To find rate of change we will be using the formula: [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
[tex]y_{2} = 3\\y_{1} =-1\\x_{2} = 3\\x_{1} = 1[/tex]
[tex]\frac{3-(-1)}{3-1} = \frac{4}{2} = 2[/tex]
So the rate of change is 2
You will use this rate of change for your other function because they both have the same rate of change
Since we have the rate of change, we can create the slope intercept form formula: y = mx +b
Just substitute for the variables we know
m = rate of change/slope = 2
b = y-intercept = -3
y = 2x + -3
[If you connected all the points in your graph, that's how you found the y-intercept]
Now we have to create the formula for the second function.
We know it will have that same slope of 2
so we have y = 2x + b
To solve for b we can plug in the values we do have which would be (x,y) of (3,6)
6 = 2(3) + b
Now solve
6 = 6 + b
6 (-6) = 6 (-6) + b
0 = b
b = 0
This mean that the y-intercept will be on (0,0)
Plot that point
Now we finish the formula
y = 2x + 0
Connect the dots, make sure the line continues on both of them past the dots and now you have your graph!
I've included a picture of the graph for your reference. I hope this helps, don't be afraid to reach out with further questions!
Find the area of a circle with a diameter of
22 millimeters. Round to the nearest tenth.
A 380.1 mm2
B 319.5 mm2
C 189.9 mm2
D 69.1 mm?
Answer:
A. 380.1 mm²
General Formulas and Concepts:
Symbols
π (pi) ≈ 3.14Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightGeometry
Area of a Circle Formula: A = πr²
r is radiusRadius Formula: [tex]\displaystyle r = \frac{d}{2}[/tex]
d is diameterStep-by-step explanation:
Step 1: Define
Identify variables
d = 22 mm
Step 2: Derive
Rewrite formula
[Area of a Circle Formula] Substitute in r [Radius Formula]: [tex]\displaystyle A = \pi (\frac{d}{2})^2[/tex]Evaluate exponents: [tex]\displaystyle A = \pi (\frac{d^2}{4})[/tex]Multiply: [tex]\displaystyle A = \frac{\pi d^2}{4}[/tex]Step 3: Solve for A
Substitute in variables [Modified Area of a Circle Formula]: [tex]\displaystyle A = \frac{3.14(22 \ mm)^2}{4}[/tex]Evaluate exponents: [tex]\displaystyle A = \frac{3.14(484 \ mm^2)}{4}[/tex]Multiply: [tex]\displaystyle A = \frac{1520.53 \ mm^2}{4}[/tex]Divide: [tex]\displaystyle A = 380.133 \ mm^2[/tex]Round: [tex]\displaystyle A \approx 380.1 \ mm^2[/tex]Calculate the average rate of change of the function g over the interval-2
A)-4
B)-1
C)0
D)1
Simplify help please
Answer:
x = 85
Step-by-step explanation:
The Pythagorean theorem is a property that is specific to right triangles, or triangles with a right angle. The Pythagorean theorem states the following,
[tex]a^2 + b^2 = c^2[/tex]
Where (a) and (b) are the legs or the sides adjacent to the right angle, and (c) is the hypotenuse or side opposite the right angle.
Substitute in the given values and solve,
[tex]13^2 + 84^2 - x^2\\\\169 + 7056 = x^2\\\\7225 = x^2\\\\85 = x[/tex]
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Answer:
2 to the power of 6 x 3 to the power of 3
Step-by-step explanation:
Answer:
b. 2 to the power 6 . 3 cubed
c. 12 cubed
pls hurry!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
You didn't post any questions
Can someone help me with this
Answer:
y= 3x+ 1
Step-by-step explanation:
-3x + 2y =2
+3x +3x
---------------------
2y = 3x +2
----- --------
2 2
y = 3x + 1
Find the missing measurement.
Round your answer to the nearest tenth.
4.9 cm
10 cm
? cm
9.9 cm
Area = 66.6 cm2
12 cm
7.2 cm
10.6 cm
9cm
Answer:
22
Step-by-step explanation:
Help??????????????????
Answer:
the middle points (-1,-3) the answer a
Step-by-step explanation:
Find the missing values in the ratio table
Answer:
1 1/2 cups flour. 1 1/3 cup oats. 4/9 cup oats.
Step-by-step explanation:
For every 3/4 cup of flour there is 2/3 cup of oats. So if you have 2/3 cup of oats you would have 3/4+3/4 cups of flour or 1 1/2 cups of flour. If you have 3 cups flour you would have 2/3+2/3 cup oats. Find the last amount by multiplying 1 by 1/3 then dividing by 3/4.
The missing value in the table is 1¹/₂ cups flour. 1¹/₃ cup oats. 4/9 cup oats.
What are ratios and proportions?An ordered pair of numbers a and b, represented as a / b, is a ratio if b is not equal to 0. A proportion is an equation that sets two ratios at the same value. The numerical relationship between two values demonstrates how frequently one value contains or is contained within another.
Oats make up 2/3 cup of every 3/4 cup of flour. Therefore, if you have 2/3 cup of oats, you will need 3/4 + 3/4 cups of flour, which is 1 1/2 cups. You would need 2/3 cup plus 2/3 cup of oats for every cup of flour. By multiplying 1 by 1/3 and then dividing by 3/4, you can determine the final sum.
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math need answer
asap please
Answer:
h=6
k=2.5
m=4.58
n=3[tex]\sqrt{10[/tex]
p=4.12
Step-by-step explanation:
The group is planning to build a fence around the garden. How many yards of fencing materials do they need for the fence? Show your work
I WILL GIVE 90 POINTS AND BRAINLIEST!!!
Answer:
Solution given;
length(L) =6+12=18yd
again
b=√(15²-12²)=9yd
so
breadth (B)=8+9=17yd
since it is a rectangular shape so
perimeter of rectangle=2(L+B)=2(18+17)=70yd
70 yards of fencing materials do they need for the fence
WILL MARK BRAINLIEST HELP ASAP ASAP
Answer choices are
9
10
11
12
13
Answer:
none of the answer choices work sorry.
Step-by-step explanation:
PLEASE HELP, DUE AT 11:59PM PST
All responses are appreciated
if f(x) = 9. Find x
Answer:
x = 9
Step-by-step explanation:
Not sure if you posted the right thing, but if f(x)=9, then x simply is 9.
Evangeline is making snack bags for her class. If she can fill 5/8 of her snack bags with 1 2/3 cups of pretzels, how many cups of pretzels are needed to fill all of the snack bags? Write a multiplication equation and a division equation for the situation, then answer the question. Show your reasoning.
Answer:
2 2/3
Step-by-step explanation:
For each of her snack bag, she can fill it with a 1/3 cup of pretzels
1/3 x 8 = 2 2/3 cups
Answer:
Step-by-step explanation:
÷I need help with this
Answer:
10 units²
Step-by-step explanation:
In the second photo.
I couldn’t find the answer throught brainly. Anyone know??
Answer:
240 would be your answer
Step-by-step explanation:
Answer:
I know an Edge quiz when I see one! Imao. The answer is 100% C. 240
Step-by-step explanation:
Have a nice day! I was just doing the volume lesson.
What is the measure of the angle labeled n?
Answer:
B. 74°
Step-by-step explanation:
n and 106° are same-side interior angles.
Same side interior angles are also supplementary angles, meaning they add to 180°.
n+106=180
n=74°
Q1. Three types of coffee beans, A, B and C, are blended in the ratio 3: 5:7 to make a bag of coffee
powder. Given that the bag contains 45 kg of coffee powder, find the mass coffee beans A in the
mixture?
Answer:
Mass of coffee A beans = 9 kg
Step-by-step explanation:
Coffee A = 3
Coffee B = 5
Coffee C = 7
A : B : C = 3 : 5 : 7
Total ratio = 15
Total mass of the bag = 45 kg
find the mass coffee beans A in the mixture?
Mass of coffee A beans = ratio of coffee A / total ratio × total mass of the bag
= 3/15 × 45
= 1/5 × 45
= (1 * 45)/5
= 45/5
= 9 kg
Mass of coffee A beans = 9 kg
Mass of coffee B beans = ratio of coffee B / total ratio × total mass of the bag
= 5/15 × 45
= 1/3 × 45
= 45/3
= 15 kg
Mass of coffee C beans = ratio of coffee C / total ratio × total mass of the bag
= 7/15 × 45
= (7*45)/15
= 315/15
= 21 kg
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!
which expression is equivalent to -2 1/4
__________
-2/3
Find the circumference and area of the circle. Use 3.14 for π. Round to the nearest hundredth if necessary.
Answer:
2 x 3.14 x 13 = 81.64 m is your circumference
13^2 x 3.14
169 x 3.14 = 530.66 m^2 is your area
In a school with 3014 students, a survey was conducted. From a sample of 200 students, 139 said that they prefer to listen to music while they do their classwork and homework.
Estimate the percentage of students at the school that prefer to listen to music while they work.
Answer:
2,095 students.
Step-by-step explanation:
3014/200 = 15.07 groups of students
15.07 groups x 139 students = 2094.73 students -> rounds to 2095
Solve each equation. Get the variables on one side and the numbers on the other.
1) 4x - 3 = 2x + 9
2) -2x + 4 = 6x-20
3) 7x - 2 = 4x - 17
4) -3x + 5 = 10 - 4x
5) 9x + 2 = 16 + 2x
no links please, and show work
Answer:
1. 4x -3 = 2x + 9
4x - 2x + 9 +3
2x = 12
x=6
2. -2x + 4= 6x -20
-2x -6x = -20 - 4
-8x = -24
x=3
help me please i need to finish this today
Answer: I think it is B
Step-by-step explanation:
What is the difference of the median?
Answer:
2
Step-by-step explanation: