Answer:
(x+2) (x-2)=[tex]x^{2}[/tex]-4(n+m) (n-m)=[tex]n^{2} -m^{2}[/tex]
(r+9) ( r-9)=[tex]r^{2}[/tex]-81Step-by-step explanation:
pls help me
best gets brainliest
Answer:
i tryied, im not sure, srry :<
stay safe either way! :D
Which linear equation represents the graph?
A) y = 7x + 3
B) y = 7x + 10
C) y = 1/7x+3
D) y = 1/7x+10
NO LINKS NOR FILES PLEASE OR ELSE ILL REPORT YOUR ANSWER LIKE I DID WITH OTHERS PLEASE PUT A REGULAR ANSWER!
under which of the following conditions is it preferable to use stratified random sampling rather than simple random sampling?
Answer:
The population can be divided into strata so that the individuals in each stratum are as much alike as possible.
Step-by-step explanation:
In short, if you can group the population into subgroups and are interested in their sub properties, then use stratified random sampling. If not, and interested only in the entire population as a whole, then use simple random sampling.
Simple random sampling, as the name suggests, is simply sampling randomly from the population. It doesn't make any assumptions of sub-classifications about the given population and is only interested in sampling the population as a whole representative.
Stratified random sampling, as the name suggests, does sampling on strata( parts or subgroups divided in the population). The sampling then is done from each group proportionate to the group's size versus the population size.
One example is when you've got red, green and blue colored balls as the population and you want to sample the population based on colors, then the colored groups are strata and thus, the sampling will be done on subgroups and such type of sampling will be called as stratified random sampling.
Simple random sampling doesn't care about sub-properties in the population. It consider the population as whole and doesn't differentiate classes in the population, unlike stratified random sampling.
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32.00 for 8 pounds of meat what is the unit rate and the rate
Answer:
7 and 3
Step-by-step explanation:
Find a counterexample to show that each conjecture is false
1. All vehicles on the highway have exactly four wheels
2. All states in the United states share a border with another state
3. All plurals end with the letter s
4. The difference between two integers is always positive
5. All pentagons have exactly five congruent side
6. All numbers that are divisible by 3 are also divisible by 6
7. All whole numbers are greater than their opposites
8. All prime numbers are odd integers
Answer:
Examples given belowStep-by-step explanation:
1. All vehicles on the highway have exactly four wheels
Motorcycle2. All states in the United states share a border with another state
Hawaii3. All plurals end with the letter s
Children4. The difference between two integers is always positive
3- 13 = -10 is negative5. All pentagons have exactly five congruent side
Irregular pentagon6. All numbers that are divisible by 3 are also divisible by 6
9 is divisible by 3 but not divisible by 67. All whole numbers are greater than their opposites
-5 < 58. All prime numbers are odd integers
2 is prime but evenThe quotient of a number and 3 is 9.
Answer:
yes 3 x 3 = 9 no 3/3 = 1
Step-by-step explanation:
given that f(x)=3x+2 and g(x)=x^2-3x-4,find (gof)(7)
Answer:
gof(x)=3[tex]x^{2}[/tex]-9x-10
Step-by-step explanation:
gof(x)=3([tex]x^{2}[/tex]-3x-4)+2
gof(x)=3[tex]x^{2}[/tex]-9x-12+2
gof(x)=3[tex]x^{2}[/tex]-9x-10
If there is any problem, you can ask.Larry jumped 16 feet 8 inches on his first try. How many
inches did he jump on his first try?
Answer:
200 inches
Step-by-step explanation:
16*12= 192
192+8=200
200 inches
Answer:
200
Step-by-step explanation:
16 feet in inches is 192
192 plus 8 = 200
I need help with these questions.
Answer:
Symmetric, Subtraction, Distributive, Transitive
Step-by-step explanation:
If 8x=7y, then 7y=8x ----Symmetric
If 6x+8=56, then 6x+8-8=56-8 ------Subtraction
l(m+n)=lm+ln -------Distributive
If x=y and y=z, then x=z ------Transitive
Hope this helps :)
I need help with this please :)
Answer:
joke guy
i need help with this please :)kd i need kkkkkk help pls hahahah oanget
Step-by-step explanation:
brahaajcj just help me cute ko joke eean nyo
Provider A changes $55 for installation and charges $35.50 per month for the basic package. Provider B offers free installation and charges $35.50 per month for the basic package. Your neighbor subscribes to Provider A the same month you subscribe to Provider B. After how many months is your neighbor's total cost the same as your total cost for satellite TV? Explain.
Let n = number of months both have their services
Provider A:
C = 35.50n + 55
Provider B:
B = 35.50n
Provider A will always cost more than
provider B because of the $55 installation fee
Express sin I as a fraction in simplest terms.
Answer:
sin I = 28 / 35
Step-by-step explanation:
sin I = opposite side / hypotenuse
hyp^2 = 28^2 + 21^2
= 784 + 441
= 1225
hyp = [tex]\sqrt{1225}[/tex]
= 35
sin I = 28 / 35
which fraction can be used to represent this division problem 5.34 divided by 2.5
Answer:
2.5 = 2 5/10 = 25/10 = 5/2
Step-by-step explanation:
5.34 = 5 34/100 = 5 17/50 = 267/50
2.5 = 2 5/10 = 25/10 = 5/2
Solving: 267/50 ÷ 5/2
= 267/50 × 2/5
= 534/250
= 267/125
The fraction which can be used to represent this division problem 5.34 divided by 2.5 is [tex]\frac{53.4}{25}[/tex]
To represent the division problem 5.34 divided by 2.5 as a fraction, you can write it as:
[tex]\frac{534}{2.5}[/tex]
To simplify this fraction, you can multiply both the numerator and the denominator by 10 to eliminate the decimal places:
[tex]\frac{5.34\times10}{2.5\times10}[/tex]
[tex]\frac{53.4}{25}[/tex]
Hence, [tex]\frac{53.4}{25}[/tex] fraction can be used to represent this division problem 5.34 divided by 2.5.
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Find the value of x shown below
Angles opposite to the equal sides of an isosceles triangle are equal, so the third angle in this triangle is also 61. Now, you know all the angles in the triangle, you can use the Triangle Sum Theorem, which says that all the angles in a triangle add up to 180.
x + 61 + 61 = 180
x + 122 = 180
x = 58
Hope this helped!
Can someone help I don't know what the answer is will mark brainliest.
Answer:
i think it is B be the nice
kiran reads for x minutes and andre reads for 3/8 more than that. write an equation that relates the number of minutes kiran read with y, the number of minutes that andre read.
Answer:
x=3/8y
x=Andre
y=kiran
Apply the distributive property to factor out the greatest common factor.
60-40y =?
Answer: 20(3 - 2y)
Step-by-step explanation:
Use the distributive property to factor out the GCF:
60 - 40y
The GCF of 60 and 40 is 20.
20(3 - 2y)
Acellus Simplifying Expressions with Integers
what is (4/9)^2 as fraction
Answer:
22/9
Step-by-step explanation:
David purchased a used car. The
equation v= -800x + 8000
represents the value of the car(y).
over a period of time in years(x).
Which of the following best
describes this situation?
A The car was purchased for $800.
B The car decreases in value by
$800 per year.
C The car increases in value by
$800 per year.
D. The car will have the same
value after two years,
Tomic calculated incorrectly that they had scored 5012 points. Select the possible reason for his error.
1. He multiplied the missed baskets by 212.
2. He subtracted 34 from 212 then multiplied by 16.
3. He rounded 212 to 3 and 34 to 1 before multiplying.
4. He added in the missed baskets as positive values.
Answer:75
Step-by-step explanation: yeet
A right triangle has one angle that measures 40°. What is the measure of the other acute angle?
Answer:
50
Step-by-step explanation:
a right triangle is 90 degrees so if one angle is 40 the other has to be 50.
Answer:
50º
Step-by-step explanation:
Since all angles of a triangle have a sum of 180º, we can add 90º (since it's a right triangle) and 40º. This gives us 130º, which we can then subtract from the 180º total. The answer is then 50º.
Which polynomial represents the sum below?
(3x2 + 3) + (3x2 + x + 4)
9x2 + x + 7
6x2 + x + 12
9x2 + x + 12
6x2+x+7
Answer:
6x2+x+7 I think
Step-by-step explanation:
Answer:
6x^2+x+7
Step-by-step explanation:
3x^2+3x^2=6x^2
x=x
3+4=7
Hey um is it okay if you guys help me??
TYSM FOR ALL THE HELP HEHEH
(u dont have to answer both if u dont know it)
Answer:
OPTION D IS RIGHT
BRAINLIST PLEASE
A piece of wood that is 33 1/4 inches long is cut into 4 equal pieces.
Answer: Each piece has a length of 8.3125.
Step-by-step explanation:
To find this answer, simply divide 33 1/4 by 4, to get 8 5/16, or 8.3125.
Hope it helps, and let me know if you want me to elaborate.
Answer:
The answer is 8 5/16.
Step-by-step explanation:
33 1/4 ÷ 4 is 8 5/16
Hope this helps!
What percent is 12 m of 20 m?
HELP PLSS
Answer:
60%
Step-by-step explanation:
To change a fraction to a percentage multiply by 100%
[tex]\frac{12}{20}[/tex] × 100%
= 0.6 × 100%
= 60%
Please help me
Solve for X
Find the values of both missing angles, X and Y.
Answer:
the answer for both angles is 45
Step-by-step explanation:
bc the one it isn't asking for is a 90 degree angle and the angles must add up to 180 degrees and the 2 angles are the same and 45+45=90 and 90+90=180
Answer:
x = 35.69°y = 54.31°Step-by-step explanation:
Use trigonometry to find one of missing angles:
sine = opposite / hypotenusesin x = 7/12x = arcsin (7/12)x = 35.69°Find the other missing angle:
y = 90° - xy = 90° - 35.69°y = 54.31°What is the equation for a line that has a slope of -5/2 and passes through
the point (2, -10)?
Answer:
5x+2y+2=0
Step-by-step explanation:
got it correct
what does x equal 2x+4=8
Answer:
x=2
Step-by-step explanation:
2x+4=8; subtract 4 to both sides of the equation
2x +4-4=8-4
2x=4; divide both sides by 2
[tex]\frac{2}{2\\}[/tex]x=[tex]\frac{4}{2}[/tex]
1x=2 or just x=2
