HELP WILL GIVE BRAINIEST AND 60 POINTS AND 5 STARS!!!! ITS DUE IN 10-15 MINUTES!!! Which of these 4 numbers are rational numbers and which one of them is the only one that is irrational? and explain why you got ur answer using math terminology or math logic
Answers
Answer:
[tex]\sqrt{21}[/tex] does not belong
Step-by-step explanation:
a rational number is defined by any number that ends or repeats.
[tex]\sqrt{36\\}[/tex] ends because it is just 6
[tex]\frac{2}{3}[/tex] repeats so it is rational
[tex]\frac{1}{5}[/tex] ends becuase it is just 0.2
but [tex]\sqrt{21}[/tex] does not end nor repeat, making it irrational
Answer:
21 is the irrational one
Step-by-step explanation:
you cant multiply to of the same whole numbers by itself and get 21
Related Questions
Four groups of students will clean a total of 3.25 miles of the trail along Lady Bird Lake. Each group will clean the same length of the trail. What length of the trail will each group clean?
Answers
worth a brainliest I need help on a and b!! I won't be accepting any ridiculous answers and if you do answer something stupid like "I can't read it. Sorry. Too small." Or "idk haha" I won't hesitate to spam all of your answers with the same response you gave me, taking your points...
Answers
Answer:
For answer a,
the equation is -1 - 5
this equals -6
From -1 to -6 is 5
A.) The difference is 5
For answer b,
the equation is -7 - (-3)
There are two minus signs by the -3 so that means to turn those two signs into a plus sign
- 7 + 3
Start at -7 and move to the right 3
You will end up at -4
B.) The difference is 3
A balalaika is a Russian stringed instrument. Show that the triangular parts of the two balalaikas are congruent for x = 6.
Answers
*the diagram of the Russian stringed instrument is attached below.
Answer/Step-by-step explanation:
To show that the traingular parts of the two balalaikas instruments are congruent, substitute x = 6, to find the missing measurements that is given in both ∆s.
Parts of the first ∆:
WY = (2x - 2) in = 2(6) - 2 = 12 - 2 = 10 in
m<Y = 9x = 9(6) = 54°.
XY = 12 in
Parts of the second ∆:
m<F = 72°
HG = (x + 6) in = 6 + 6 = 12 in
HF = 10 in
m<G = 54°
m<H = 180 - (72° + 54°)
m<H = 180 - 126
m<H = 54°
From the information we have, let's match the parts that are congruent to each other in both ∆s:
WY ≅ FH (both are 10 in)
XY ≅ GH (both are 12 in)
<Y ≅ <G (both are 54°)
Thus, since two sides (WY and XY) and an included angle (<Y) of ∆WXY is congruent to two corresponding sides (FH and GH) and an included angle (<G) in ∆FGH, therefore, ∆WXY ≅ ∆FGH by the Side-Angle-Side (SAS) Congruence Theorem.
This is enough proof to show that the triangular parts of the two balalaikas are congruent for x = 6.
f(x) = 3x2-2x +1, evaluate:
Answers
f(-1)=3(-1)^2-2(-1)+1
f(-1)=3( 1 ) +2+1
f(-1)=3+3
f(-1)=6
A van travels 154 km in 1/3/4 hours (one whole number three over four). Find its speed in km/h
Answers
Answer:
88 hrs
Step-by-step explanation:
1/3/4 = 7/4hr ; 7/4 = 1.75hr (the number of hours used to travel for 154km)
154/1.75 = 88 (the number of km van travels per hour)
When
4a- a x 3a + 7a
is simplified it is equivalent to?
Answers
Answer:
-3a^2+11a
Step-by-step explanation:
Answer:
4a-a×3a+7a
or, 3a×3a+ 7a
or,9a+7a
or,16a
:. a =16
What is the equation of the line in slope-intercept form that passes through (-5, 3) and (2, -4)?
.
Write an equation in slope-intercept form.
Answers
Answer:
m= y2- y1 / x2 - x1= Slope
1. Use pictures or words to
describe a combination of
coins you could use to make
$3.85?
Pls help and it’s Canadian money
Answers
Answer:
Step-by-step explanation:
Good thing you said it was Canadian Money. Pennies are gone and loonies and toonies are used.
1 Toonie = $2.00
1 Loonie = $1.00
3 quarters= .75
2 dime .10
3.85
What is the point-slope form of an equation for a line that passes through the point (5, –5) with the slope of 2?
Answers
Answer:
y + 5 = 2(x - 5)
Step-by-step explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
Here m = 2 and (a, b) = (5, - 5) , thus
y - (- 5) = 2(x - 5) , that is
y + 5 = 2(x - 5)
BRAINLIEST TO THE CORRECT ANSWER! 20 POINTS!!
Maricella solves for x in the equation 4 x minus 2 (3 x minus 4) + 4 = negative x + 3 (x + 1) + 1. She begins by adding –4 + 4 on the left side of the equation and 1 + 1 on the right side of the equation. Which best explains why Maricella’s strategy is incorrect?
Answers
The statement that best explains why Maricella's strategy is incorrect based on the distribution property and order of operation is option A.
Recall:
When given an equation involving brackets, the distribution property must be applied first which involves multiplying every term in a bracket by the term outside the bracket.In the equation given, to solve for x, Maricella needs to apply the distribution property by using -2 to multiply each term in (3x - 4) and using +3 to multiply every term in (x + 1).
The next step will now be addition and subtraction of like terms.
Therefore, the statement that best explains why Maricella's strategy is incorrect based on the distribution property and order of operation is option A.
Learn more about distribution property on:
https://brainly.com/question/11279503
Answer:
A!!!
Step-by-step explanation:
edge2022
An item is originally priced 68.89 dollars. It was on sale for 42 percent of the original price. Which is an estimate of the sale price? A. 2.00 dollars B.3.50 dollars C. 20 dollars or D. 28 dollars.
Answers
Answer:
D. 28 dollars
Step-by-step explanation:
42% = .42
"of" means to multiply
68.89 × .42= 28.9
28 is the closest answer.
Answer:
The answer would be D.28 dollars
Step-by-step explanation:
Its 28 dollars because,
Discount = Original Price x Discount %/100
Discount = 68.99 × 42/100
Discount = 68.99 x 0.42
You save = $28.98
Final Price = Original Price - Discount
Final Price = 68.99 - 28.9758
Final Price = $40.01
could someone help me with this math question? its operations with scientific notations
Answers
Answer: 16312.5
Step-by-step explanation:
That took a lot of time. There you go.
Answer:
163125
Step-by-step explanation:
Divide the numbers then divide the exponents. Put them back together once done.
[tex]\frac{5.22}{3.2} = 1.63125[/tex]
[tex]\frac{10^{9}}{10^{4}} =10^{5}[/tex]
To get 163125, I moved the decimal point 5 places to the right since the exponent is 5.
[tex]1.63125*10^{5}=163125[/tex]
Evaluate the function f(x) = x/3+4 for f(-9).
a. -23
b. -2
c. 7
d. 1
Answers
Answer:
d. 1
Step-by-step explanation:
To evaluate a function, plug the number in the parentheses into the expression in place of x:
(-9/3) + 4 = 1
Answer:
option d.
Step-by-step explanation:
answer is 1
as LCM is 3
-9/3+ 4/1*3/3=
-9+12/3= 3/3
=1
help
4. Which list shows the integers in order from least to greatest?
A) -8, -5, 0, 2, 6
B) 0, 2, -5, 6, -8
C) -5, -8, 0, 2, 6
D) 0, -3, -5, 2, 6
Answers
please help thanks.
Answers
Answer:
Option A
I hope this helps!
A company that teaches self-improvement seminars is holding one of its seminars in Belmont. The company pays a flat fee of $250 to rent a facility in which to hold each session. Additionally, for every attendee who registers, the company must spend $4 to purchase books and supplies. Each attendee will pay $14 for the seminar. Once a certain number of attendee register, the company will be breaking even. How many attendees will that take?
Answers
Answer:
Step-by-step explanation:
250 for place 4 for books each.
If they charge 14 per person, 4 of that goes for the books and 10 will be applied to the rental fee.
250/10= 25 people to break even. Any people beyond that is a profit of 10.00 since the other 4 will still go to the books.
Determine how (if possible) the triangles can be proved similar.
Answers
Answer:
It's not similar :)
hope this helps<3
The triangles are not similar because the sides are not proportional.
What are Similar Triangles?Similar triangles are those triangles which has the same shape but different size.
The length of sides and angles are proportional in similar triangles.
So we know that length of sides are proportional.
If we find the ratio of corresponding sides of the two triangles, then they must be equal to a common value.
We have only the length of two sides of each triangle.
If those sides are proportional, we must have an angle of each triangle to be equal.
Here, the angles formed by the intersecting lines are vertical angles and are thus equal.
Let's look if the sides are proportional.
20 / 36 = 5/9
24 / 42 = 4/7
Sides are not proportional.
Hence the given triangles are not similar.
Learn more about Similar Triangles here :
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25 POINTS!!!
The recipe for a batch of applesauce uses 2 and one-half pounds of apples. If Michael wants to make Three-fourths of a batch of applesauce, how many pounds of apples will he need?
StartFraction 3 Over 10 EndFraction of a pound
StartFraction 8 Over 15 EndFraction of a pound
1 and StartFraction 7 Over 8 EndFraction pounds
3 and one-third pounds
Answers
Answer:
i think its the 3erd one... im giveing a estimate because of that one dude. lol
Step-by-step explanation:
im so so so so sorry if its wrong!!!
Answer:
C
Step-by-step explanation:
Help plz plz plz plz
Answers
Answer:
.4 and it terminates
Step-by-step explanation:
Answer:
red
Step-by-step explanation:
Sara is multiplying two factors, one is a whole number and one has two decimal places She says the product could have one decimal place is she correct? Give an example your reasoning
Answers
Answer: i don't understand
What is the equation of the quadratic function represented by this graph?
+10
+5
-10
-5
5
10
-5
.-10
Answers
Plz help I have no clue what the answer is
Answers
Answer:
it's D
Step-by-step explanation:
12x-12x would give us 0, so x would be eliminated
please help me this question
Answers
Answer: Choice D. (x/8) - 2 = 5
Work Shown:
x = Aatif's age
x/8 = divide the age by 8
(x/8) - 2 = divide the age by 8 first, then subtract off 2
(x/8) - 2 = 5 .... the previous result is equal to 5
find the slope and y - intercept of the equation.
y=1/4x-8
Answers
Answer:
slope= 1/4
y-intercept- (-8)
Step-by-step explanation:
i think i hope this is right !
1 point
A manufacturing plant has 60
supervisors. If 27 of the supervisors are
men, then
O 45% are women
55% are men
55% are women
O 75% are men
O 75% are women
Answers
Answer:
55% are women
Step-by-step explanation:
27÷60= 0.45
0.45x100=45
100-45=55
45% men
55% women
There are 55% are women if the manufacturing plant has 60 supervisors. If 27 of the supervisors are men, option third is correct.
What is the percentage?It is defined as the ratio of two numbers expressed in the fraction of 100 parts. It is the measure to compare two data, the % sign is used to express the percentage.
We have:
A manufacturing plant has 60 supervisors. If 27 of the supervisors are men.
The number of women = 60 – 27 = 33
The percent of women = (33/60)×100
= 0.55×100
= 55%
Thus, there are 55% are women if the manufacturing plant has 60 supervisors. If 27 of the supervisors are men, option third is correct.
Learn more about the percentage here:
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(Will mark brainliest and give $5 Starbucks digital card Include SC!!!) For which set of triangles can you immediately use the AAS congruence criteria to prove them congruent?(1 point)
1. triangles STU and VWX, where ∠T≅∠W, ∠U≅∠X, and SU≅VX
2. triangles GHI and JKL, where ∠G≅∠J, ∠H≅∠K, and GH≅JK
3. triangles MNO and PQR, where ∠N≅∠Q, MN≅PQ, and NO≅QR
Answers
Answer:
the second one
Step-by-step explanation:
Annabella Works in a deli and has been tracking the daily sales of different items over several months Annabelle found that when there was an increase in the number of cups of hot chocolate sold the number of cups of coffee sold also increased similarly where there was a decrease in the number of cups of hot chocolate sold the number of cups of coffee also decrease which of the following is a valid conclusion
Answers
I would assume that even though both hot chocolate and coffee increased and decreased at the same time, they are not a correlation since one doesn’t cause the other to increase/decrease
Answer:
The increase in the sale of hot chocolate is correlated to, but not caused by, the sale of coffee.
Step-by-step explanation:
For Plato
Sun-Li has $30 to spend at the carnival. Admission is $5, and each
ride costs $2. What is the greatest number of rides she can ride?
Write and solve an inequality.
Answers
Answer:
Sun-Li will be able to ride 12 rides. (30-5)/2=24
Step-by-step explanation:
Solve each system by graphing or using a table. Check your answers.
- 2x +y = 2
- x + 2y = -2
Use the graphing tool to graph the system.
Click to
enlarge
graph
What is the solution to the system of equations? Select the correct choice below and, if necessary, fill in the
answer box to complete your choice.
O A. The solution is
(Type an ordered pair.)
B. There are infinitely many solutions.
OC. There is no solution.
Answers
Answer: there is no solution
insert three arithmetic means between 7 and 15
Answers
Answer:
9, 11 , 13
Step-by-step explanation:
Find the average of 7 and 15, that is
[tex]\frac{7+15}{2}[/tex] = [tex]\frac{22}{2}[/tex] = 11
We now have 7, 11, 15
Now find the average of 7 and 11, 11 and 15
[tex]\frac{7+11}{2}[/tex] = [tex]\frac{18}{2}[/tex] = 9
[tex]\frac{11+15}{2}[/tex] = [tex]\frac{26}{2}[/tex] = 13
Thus the 3 arithmetic means between 7 and 15 are
9, 11, 13