Janet states the equation 10x−3+2x=12x−5+2 has only one solution because both sides are already the same. Is she correct? Explain your answer.
Answer: I think the answer has infinite solutions since they are equal.
Step-by-step explanation:
Mathematics.... Use 22/7
Wrong or other answers will be reported
Answer:
A
Step-by-step explanation:
Volume of cylinder= πr²h, where r is the radius
Volume of concrete
= volume of large cylinder -volume of smaller hollow cylinder
Large cylinder:
Diameter= 7m
Since radius= ½(diameter),
Radius= 7 ÷2= 3.5m
Height= 3m
Volume of large cylinder
= π(3.5)²(3)
= 36.75π m³
Small hollow cylinder:
Diameter= 4m
Radius= 4 ÷2= 2m
Height= 3m
Volume of small hollow cylinder
= π(2)²(3)
= 12π m³
Substitute vol. of large and small hollow cylinder with 36.75π and 12π respectively, then substitute 22/7 for π:
Volume of concrete
= 36.75π -12π
= 24.75π
[tex] = 24.75( \frac{22}{7} ) \\ = 77.79 \: m^{3} [/tex]
( to 2 d.p.)
can someone help me with this? 8x + 18 solve for x
Answer:
Factor 2 out 8x + 18 2(4x+9)
Thats the best i can think of
The interquartile range of the data set is 4. 2, 2, 3, 3, 4, 5, 5, 6, 7, 9, 12 Which explains whether or not 12 is an outlier? Twelve is an outlier because it is greater than the sum of 7 and 4. Twelve is an outlier because it is less than the sum of 7 and 6. Twelve is not an outlier because it is greater than the sum of 7 and 4. Twelve is not an outlier because it is less than the sum of 7 and 6.
Answer:
An outlier is an observation that lies an abnormal distance from other values in a random sample from a population. ... Examination of the data for unusual observations that are far removed from the mass of data. These points are often referred to as outliers. Which explains whether or not 12 is an outlier? Twelve is not an outlier because it is less than the sum of 7 and 6.
Step-by-step explanation:
In the given dataset, twelve is not an outlier because it is less than the sum of 7 and 6.
The outlier of a dataset is the date that are distant from other values of the dataset.
Given that:
[tex]S = \{ 2, 2, 3, 3, 4, 5, 5, 6, 7, 9, 12\}[/tex] --- the dataset
[tex]N = 11[/tex] -- number of observations
[tex]IQR = 4[/tex]
The position of the lower quartile of the above set is:
[tex]Q_1 = \frac{1}{4} \times (N + 1)th[/tex]
[tex]Q_1 = \frac{1}{4} \times (11 + 1)th[/tex]
[tex]Q_1 = \frac{1}{4} \times (12)th[/tex]
[tex]Q_1 = 3rd[/tex]
The 3rd element is 3. So:
[tex]Q_1 = 3[/tex]
Similarly, the position of the upper quartile of the above set is:
[tex]Q_3 = \frac{3}{4} \times (N + 1)th[/tex]
[tex]Q_3 = \frac{3}{4} \times (11 + 1)th[/tex]
[tex]Q_3 = \frac{3}{4} \times (12)th[/tex]
[tex]Q_3 = 9th[/tex]
The 9th element is 7. So:
[tex]Q_3 = 7[/tex]
The lower outlier (L) is
[tex]L = Q_1 - (1.5 \times IQR)[/tex]
[tex]L = 3 - (1.5 \times 4)[/tex]
[tex]L = 3 - 6[/tex]
[tex]L = - 3[/tex]
The upper outlier (U) is:
[tex]U = Q_1 + (1.5 \times IQR)[/tex]
[tex]U = 7 + (1.5 \times 4)[/tex]
[tex]U = 7 + 6[/tex]
[tex]U= 13[/tex]
Values from the lower to the upper outliers are not outliers.
In other words
[tex]-3, -2, -1, 0, 1, 2,......,11,12,13[/tex] are not outliers
12 is not an outlier because it is less than 13
13 is gotten from 7 + 6; as in: [tex]U = 7 + 6[/tex]
Hence, (d) is correct
Read more about outliers at:
https://brainly.com/question/12153650
subtract [7+4i]-[-9+i]
Answer:
(7 + (4 * i)) - ((-9) + i) = 16 + 3i
Step-by-step explanation:
awnser this plsss hahahhhahahahahaha
Answer:
c
Step-by-step explanation:
50 pts! Help ASAP, will make brainliest
2. Graph the piecewise function f(x)= { 3x-5≤ if x≤-1 -2+3 if -1
Answer:
The answer is -2 and 2 on the x-axis and 0 as the center point.
Step-by-step explanation:
3h times -3q
Plz help
Answer:
-9hq
Step-by-step explanation:
Answer:
-9hq
Step-by-step explanation:
i think this is the correct answer if not i'm sorry
1. The memory card on Melcher’s digital camera can hold about 430 pictures. Melcher used 18% of the memory card while taking pictures at a family reunion. About how many pictures did Melcher take at the family reunion? Round to the nearest whole number.????
2. What number is 3% of 100?
3. 55 is 40% of what number?
4. 14% of 81 is what number
5. $4 is what percent of $50?
brainless whoever gets this right + 100 points show your work and u also get a brainless by doing that too
From a distance of 200 m, Susan looks up at the top of a lighthouse. The angle of elevation is 9°. Her eyes are 1.22 m above the ground. Determine the height of the lighthouse to the nearest meter. *
37.2 m
32.7 m
32.9 m
22.6 m
Answer:
these are triangle problems, they are difficult unless you keep in mind that there is an invisible triangle and you use the Mnemonic SOH CAH TOA to keep sin, cos, and tan, straight..
Step-by-step explanation:
what do we know about the imaginary triangle that is being made from Susan to the lighthouse? that from Susan's feet to the lighthouse base is 200 m so that side of the imaginary triangle is 200 meters.. got it... Susan's eyes are 1.22 meters up and that her angle of looking up at the top of the lighthouse is 9 degrees.. okay .. we have enough info to solve this. B/c we have an angle and also the adjacent ( next to ) side to that angle , great
B/c we have the adjacent side and the angle.. and we want to know the Opposite side.. which will be the height of the light house, use one of the SOH CAH TOA formulas for those three pieces of info in it.. I see that that TOA has all of those. Tan(Ф)= Opp / Adj
Tan(Ф) is our angle
Opp is the Opposite side that we want to find
Adj is the Adjacent side that we know.. 200
Tan(9)=Opp / 200
use algebra to rearrange our formula
Tan(Ф)*Adj = Opp
Tan(9)*200 = Opp
I'll use my calculator to figure out what tan(9) is b/c I don't have that memorized :P and multiply that by 200
31.677 m
Also.. b/c we just figured out the triangle from Susan's eyes to the lighthouse.. we have to add her eye height off the ground to our answer
31.677+1.22= 32.897
yeah 32.9 looks like the right answer
What is the scale factor
Answer:
Step-by-step explanation:
A scale factor is a number which scales, or multiplies, some quantity. In the equation y = Cx, C is the scale factor for x. C is also the coefficient of x, and may be called the constant of proportionality of y to x.
Help me with this questions 5
Answer:
i think it is 1/3 .(-3,6 )=(1/3.-3,1/3 .6)
Step-by-step explanation:
please help me this due today - two-step equations (20 pts)
1: m/8 + 15 = 20
2: 4 = m/3 -6
3: 44 = 4t + 8
4: 15+ 2x = 75
Answer:
1:
[tex] \frac{m}{8} + 15 = 20 \\ m + 120 = 160 \\ m = 160 - 120 \\ m = 40[/tex]
[tex]4 = \frac{m}{3} - 6 \\ 12 = m - 18 \\ - m = - 18 - 12 \\ - m = - 30 \\ m = 30[/tex]
44=4t+8
-4t=8-44
-4t=-36
t=9
And the last one is
15+2x=75
2x=75-15
2x=60
x=30
Hope this helps :)
The price of bronze has increased by 10% per year from 2000. In the year 2000, Harry bought a bronze medal for $120. Which of the following equations can be used to represent the price of the medal x years after 2000?
y = 120(0.9)x
y = 10(120)x
y = 120(1.1)x
y = 10(1.1)x
C is the answer ollolololo
pic ^^^ help aspa
what a line representing the "rise" and a line representing the "run" of the line. State
the slope of the line in simplest form.
PLS HELP ME! ASAP!!!
Answer:
3,316 you need to add both of the numbers they asking when they say all togethor in the question it means you have to add
Which number is larger than 1.1213 × 10^10
A. 5,445,127,000
B. 1.1217 x 10
C. 560,123,800
D. 2.468 × 10
Answer:
1.1217 x 10^10
Step-by-step explanation:
Since the question is Which number is larger than 1.1213 × 10^10 1.1217 x 10^10
is a number larger then 1.1213 × 10^10 because it has the same exponent as the problem in the question but 1.1217 has .0004 more then the problem in the question.
4/5 - 1/6 =
Please answer this for me :)
Answer:
i think it is 19/30if it is not then sorry
Answer:
29/30
Step-by-step explanation:
For more help go to calculator soup for math help :)
Find the value of a that makes m || n.
Answer:
x=40
Step-by-step explanation:
PLS HELP I WILL MARK BRAINLIEST
Answer:
b
Step-by-step explanation:
Answer:
Step-by-step explanation:
point slope formula: y-y1=m(x-x1)
3,-4
0,-5
-1/3
y--4=m(x-3)
y+4=1/3(x-3)
y+4=1/3x-8/3
y=1/3x-20/3 ?
Can someone please help me ?!
Answer:
b
Step-by-step explanation:
1. Carly bought 7 folders that cost $0.15 cents each and 2 packages of pens
that cost $1.50 each. What is the total cost in dollars and cents of the folders
and pens, not including tax?
the correct answer is 4.05
Can someone explain this With the answer I forgot how to do it
Answer:
C) 0.375
Step-by-step explanation:
Ok, so the question is to write 3/8 as a decimal. To turn a fraction into a decimal, you divide the numerator by the denominator.
3 ÷ 8 = 0.375
You can check your work by seeing if 0.375 as a fraction simplifies to 3/8
0.375 = 375/1000
Divide 375 and 1000 by 125 to get your simplified fraction, 3/8.
find the 123 term of the sequence 10,12,14,16
you add 2 to each number
Maliks mom uses 14 cups of flour to make 4 loaves of bread what is the rate of cups of flour per loaf of bread in her rEcipe
Answer:
3.5 cups of flour per load of bread
Step-by-step explanation:
divide 14 by 4
15
Use the ALEKS calculator to write as a percentage.
52
Round your answer to the nearest tenth of a percent.
Х
5
?
Answer:
The Answer Is 28.8%
Step-by-step explanation:
I got it right on my Aleks assigments :)
7x - 6 = 3 + x - 5 - 2x
Answer:
x=1/2
Step-by-step explanation:
7x−6=3+x−5−2x
Step 1: Simplify both sides of the equation.
7x−6=3+x−5−2x
7x+−6=3+x+−5+−2x
7x−6=(x+−2x)+(3+−5)(Combine Like Terms)
7x−6=−x+−2
7x−6=−x−2
Step 2: Add x to both sides.
7x−6+x=−x−2+x
8x−6=−2
Step 3: Add 6 to both sides.
8x−6+6=−2+6
8x=4
Step 4: Divide both sides by 8.
8x /8 = 4 /8
x= 1 /2
Answer:
0
Step-by-step explanation:
We need to factor the GCF (Greatest Common Factor).
The resulting term is a product of the GCF and the original expression divided by the GCF.
In our example, the GCF is equal to X + 2.
I'm not sure if its 0
But mine is "0"
Three friends go apple picking they pick 13 apples on Saturday 14 Appleton funding they share the apples equally how many apples does each person get.
Answer:
9 apples.
Step-by-step explanation:
The first step is to sum up the apples picked by the three friends on Saturday and Sunday.
Sum of apples picked = Saturday 13 apples + Sunday 14
= 26 apples.
The next step is to divide the above sum by the number of friends that went apple picking inoder to arrive at apples picked by each.
Number gotten by each person = 27 / 3
= 9
It therefore means that each person get 3 apples a piece.
A middle school took all of its 6th grade students on a field trip to see a play at a theater that has 3100 seats. The students filled 32% of the seats in the theater. How many 6th graders went on the trip?
Answer:
992
Step-by-step explanation:
[tex] \frac{32}{100} \times 3100 = 992[/tex]
i think this is the answer
Shalina wants to write StartFraction 2 over 6 EndFraction as a decimal. Which method could she use? Divide 6 by 2. Divide 2 by 6. Multiply 6 by 2. Multiply 2 by 6.
Answer:
The method she would use is = Divide 2 by 6
= 2/6
= 0.3333333333333
Step-by-step explanation:
Shalina wants to write StartFraction 2 over 6 EndFraction as a decimal.
= This means we are dividing 2 by 6
= 2/6
= 1/3
= 0.3333333333333
Answer:
B
Step-by-step explanation: