Answers
Answer:
I think it's C or D
Step-by-step explanation:
All decimals are rational numbers and so are repeating ones
Answer:
Each repeating decimal number satisfies a linear equation with integer coefficients, and its unique solution is a rational number.
Step-by-step explanation:
Related Questions
The temperature decreased 3 degrees every hour for 4 hours yesterday. How many total degrees did the temperature drop yesterday
Answers
Answer:
12
Step-by-step explanation:
are all equilateral triangles acute?
Answers
Answer:
Yes, all equilateral triangles are acute.
Step-by-step explanation:
yea
hope this helps :)))
Simplify (4x – 6) + (5x + 1).
Answers
Answer:
4x-6+5x+1
9x-5
Step-by-step explanation:
Answer:
9x-5
Step-by-step explanation:
like terms are added together, in this case, x
According to one source, % of plane crashes are due at least in part to pilot error. Suppose that in a random sample of separate airplane accidents, of them were due at least in part to pilot error. Complete parts (a) and (b) below. a. Test the hypothesis that the proportion of airplane accidents due to pilot error is not . Use a significance level of .
Answers
Complete question :
According to one source, 49% of plane crashes are due at least in part to pilot error. Suppose that in a random sample of 100 separate airplane accidents, 61 of them were due to at least in part to pilot error. Complete parts (a) and (b) below. Test the hypothesis that the proportion of airplane accidents due to pilot error is not 0.49. Use a significance level of 0.05.
Determine the null and alternative hypotheses. H0: p Ha: p
Determine the test statistic. Z = (Round to two decimal places as needed.)
Determine the p-value.
Answer:
H0: p = 0.49
Ha: p ≠ 0.49
Zstatistic = 2.45
Pvalue = 0.015
Reject H0, there is sufficient evidence to conclude that population proportion is not 0.49
Step-by-step explanation:
Claim: proportion of airplane accidents due to pilot error is not 0.49
Null and Alternative hypothesis :
H0: p = 0.49
Ha: p ≠ 0.49
Sample size (n) = 100
Number due in part to pilot error = 61
Sample Proportion ph = 61 / 100 = 0.61
Standard Error :
√(p*(1 - p) / n))
√(0.61 * (1 - 0.61) / 100))
√(0. 61 * 0.0039)
= 0.0487749
= 0.049 ( 3 significant figure)
Zstatistic = (ph - p) / SE
Zstatistic = (0.61 - 0.49) / 0.049
Zstatistic = 2.4489795 = 2.45
Using the p value from Z statistic calculator ; α = 0.05, 2 tailed test :
P value = 0.014687 = 0.015
P value < α
0.015 < 0.05
Since the p value is less Than α,
Reject H0, there is sufficient evidence to conclude that population proportion is not 0.49
50 points for good answ.
car moves with constant speed. from A to B, car had to arrive on time, but he ride half of the road with 2/3v speed. with what speed car has to ride the rest of the road to go on B location on time?
Answers
Answer:
2vStep-by-step explanation:
Let the distance be d and average speed be v.
Half of the distance the speed was 2/3v
Let the speed be xv in the second half of the distance.
Then time is:
d/v = d/2 : (2/3v) + d/2 : (xv)d/v = 3/4(d/v) + (1/2x)(d/v)1 = 3/4 + 1/2x1/2x = 1 - 3/4 1/2x = 1/42x = 4x = 2The rest of the road car has to ride with speed of 2v
Martin made 16 of of his 20 free throws attempted. What percent of free throws did Martin make?
Answers
Answer:
80 percent
Step-by-step explanation:
20 / 100 = 0.20
16 / 0.20 = 80
16 is 80 percent of 20
Answer:
80% or .8
Step-by-step explanation:
16/20 is equal to .8 or 80%
I need help ASAP!!!!
Answers
Answer:
3/10
Because there are 10 balls in all and there is one softball and two baseballs, so in total there are 3 balls that they want to try and pull. That's why it is 3/10.
Hope This Helps!
4.8 + 2.2w - 1.4w - 2.4 = help pls?
Answers
Answer:
.8w + 7.2 is the answer
Step-by-step explanation:
Answer:
2.4+0.8w
Step-by-step explanation:
(4.8-2.4)+(2.2w-1.4w)
Select the correct answer. Which image shows the correct position of on the number line? Which image shows the correct position of -2 1/2 on the number line? A. A B. B C. C D. D
Answers
Answer:
Option (A)
Step-by-step explanation:
Option A
Each small segment on the number line measure (0.5) unit.
Red point on the number line is 5 small segment distant from center 0.
So, the position of the point = 0.5 × 5 = 2.5
Since, the point is on the negative side position will be → -2.5
Option B
Position of the point = 0.5 ×3 = 1.5
Option C
Position of the point = 0.5 × 1 = -0.5 (negative sign shows the position of the point on the negative side of the number line)
Option D
Position of the point = 5 × 0.5 = 2.5
Answer the answer is A
Step-by-step explanation:
Find the value of
[tex] log_{8}^{512} [/tex]
Answers
Explanation: logarithm base 8 of 512 is 3
Mrs. Rodriquez has 24 students in her class. Ten of the students are boys. Jeff claims that the ratio of boys to girls in this class must be 5:12. What is Jeff’s error and how can he correct it?
Answers
Answer:
See Below
Step-by-step explanation:
Total no of students = 24
No of boys = 10
So, no of girls = 24 - 10 = 14
Ratio of boys to girls = 10/14 = 5/7 = 5 : 7
So the ratio of boys to girls should be 5 : 7 and not 5 : 12
Melissa will choose between two restaurants to purchase pizzas for a party. The first restaurant charges a delivery fee of $6 for the entire purchase and $12 per pizza. The second restaurant has no delivery fee and charges $14 perr pizza. Let x be the number of pizzas purchased.
Answers
Answer:
I will try to described the smallness to the best of my ability. take two chairs - face them to each other - put a 12" square table between them leave enough room to open a 24" door and you have ...
Step-by-step explanation:
hey guys please help me oleaseee
Answers
Answer:
8'2
Step-by-step explanation:
Answer:
8'2
Step-by-step explanation:
so the question is 5x - 7 = 28 What does x equal
Answers
Answer:
x=7
Step-by-step explanation:
Answer:
7
My Logic:
If you work backwards to simplify the eqation you can get x
take 5x-7=28 and add 7 to both sides. so now the eqaton looks like this: 5x=35. next you divide 5 into both sides and you will get 7!
Hope this helps!
Please answer this
if you do ill give you my only fans for free
Answers
Answer:
first what do you look like???,
Answer:
Forget the account but I think it's A
Step-by-step explanation:
because if you take the number of how long the side lengths are (4.8in) then you times it by how many sides there are on the cube (12 side) and that is 57.6in
No positive but I think so
Which graph represents the function f(x) =-x|–2?
Answers
Answer:
C.
Step-by-step explanation:
Beverly made a root beer float using 1/4 cup of vanilla ice cream for every 3/4 cup of root beer. how much ice cream would Beverly need for one cup of root beer?
Answers
Answer:
1/3 cup of ice icream
Step-by-step explanation:
This is a proportions question. Since we know that we need 1/4 cup of ice cream for every 3/4 cup of root beer, we need to find how many cups of ice cream we need for 1 cup of root bear.
We need to find out what times 3/4 makes 1. This can be done with:
(3/4)x = 1
x = 4/3
Now multiply that with 1/4 to get the amount of ice cream.
4/3 times 1/4 = 1/3
Help me with this plz
Answers
Answer:
0.000032, 0.0000064
Step-by-step explanation:
Each is divided by 5
0.00032 and 0.00064
Step-by-step explanation:Think, each is divided by 5!
0.1, 0.02, 0.0004, 0.00008, 0.00016, 0.00032, 0.00064.
Posted By:
ehie, BenjiDev#3339
The ratio of Dobermans to terriers is 2:7. There are 774 dogs altogether.
How many Doberman is there?
How many terriers?
Answers
Answer:
172-602
Step-by-step explanation:
PLEASE HELP DHDDFCJFUIKY
Danica has purchased 36 roses and 42 tulips for her wedding ceremony. She wants to arrange the flowers into vases so that there is an equal number of roses and tulips in every vase. What is the greatest number of vases she can arrange?
Answers
Answer:
36
Step-by-step explanation:
i need help on this plz!
Answers
Its 23
Step-by-step explanation:
Johnny ran 18.28 meters in a football game. How many yards did he run?
Answers
Answer:
19.991251 yards
Step-by-step explanation:
Answer:19.69 yards
Step-by-step explanation:
I asked Siri nah I’m kiddin if one meter is about .91 meters you just have to add .91 to. 18.28
Which equation could have been used to create this table?
y = 4x
y = x + 3
y = x + 2
y = 3x
Table:
X Y
1 3
2 6
4 12
5 15
6 18
Answers
because if you put your x’s in the equation y=3(1) which equals 3 y=3(2) which equals 6
1. Convert 0.3 to a fraction and decimal.
2. Convert 9% to a fraction a decimal.
3. Convert 3/8 to a decimal and a percent.
Answers
Answer:
1=30%
2=0.09
3=37.5%
these is the answer
Answer:
1. 3/10 , 0.3 , 30%
2. 9/100 , 0.09
3. 0.375 , 37.5%
Step-by-step explanation:
i dont know if you meant the first one to be fraction and decimal or fraction and percent but i put both
Can someone help me with this please
Answers
Answer:
The 3rd one
Step-by-step explanation:
The rest have dilations, which change the size of the shape. The rest are literally just moving the shape around.
What is the solution to the following system of equations?
2x + y = 0
x + 2y = 3
Group of answer choices
(0, 0)
(-1, 2)
(2, -4)
(-5, 4)
Answers
Steps:
Solve by elimination
Multiply the first equation by 2 to make the coefficients of x in both equations the same
2(x+2y=3)
2x+4y=6
Then line them up and subtract
2x+y=0
-2x+4y=6
= -3y=-6
Divide both sides by -3 to isolate y
y=2
Then substitute 2 for y into one of the equations to find x.
x+2(2)=3
x+4=3
x=-1
solve 2/3 = x/18 SOMEONE PLS HELP
Answers
Answer:
x = 12
Step-by-step explanation:
what you have to do is cross multiply::
3x = 36
and then single the x out
x = 12
Which points define the solution set of this linear-quadratic system of equations
Answers
Answer:
At point C (-0.5,2)
At point E (1,5)
Step-by-step explanation:
The points that defines the linear quadratic equation system is as follows:
As we can see that the point E and Point C are the solutions set that have an intersections between the parabola i.e. blue and the red line also they are on the both curves at the same time. In addition to this, their coordinates satisfy the both equations in the similar time
Hence, the same is to be considered
Isabelle is planning a road trip to her friend's house. She looks at a map that has a scale of in. To 25 mi. The road distance between her home town and her friend's town measures 1/2 in. On the map. If d represents the road distance between the two towns, what is d?
Answers
This question is incomplete
Isabelle is planning a road trip to her friend's house. She looks at a map that has a scale of 1/2 in. to 25 mi. The road distance between her home town and her friend's town measures 12 in. on the map. If d represents the road distance between the two towns, what is d?
Answer:
600 miles
Step-by-step explanation:
From the question:
1/2 inches = 25 miles
12 inches = x
1/2 × x = 25 × 12
x = (25 × 12) ÷ 1/2
x = 25 × 12 × 2
x = 600 miles
Therefore the road distance between two towns = 600 miles
Callum and Isobel have a total of 240 stamps.
The ratio of the number of Callum’s stamps to the number of Isabel’s stamps is 3:8.
Callum buys some stamps from Isabel.
The ratio of the number of Caullum’s stamps to the number of Isabel’s stamps is now 3:2
How many stamps does Callum buy from Isabel?
You must show all your working.
Please help.
Answers
Answer:
Total stamps = 240
ratio= 3:8
3x + 8x = 240
11x = 240
x = 240/11 = 21.8
then, callum's stamps = 3x = 3 * 21.8 = 65.4
Isabel's stamps = 8x = 8 * 21.8 = 174.4
After buying the stamps,
ratio = 3:2
callum's stamps = 3x
Isabel's stamps = 2x
= 3x + 2x = 240
5 x = 240
x = 240/5 = 48
callum's stamps = 3x = 3 * 48 = 144
Isabel's stamps = 2x = 2 * 48 = 96
no. if stamps bought by calling = 144 - 65.4 = 78.6 stamps
hope it helps you