Answers
Answer:
d
Step-by-step explanation:
Related Questions
what’s the length of the tunnel?
Answers
Answer:
3.40 km
Step-by-step explanation:
Given two sides and the angle between them, the Law of Cosines is useful for finding the remaining side of the triangle.
If we call the vertices of the triangle H, P, Y, then the Law of Cosines tells you ...
HY² = HP² +YP² -2HP·YP·cos(P)
HY² = 6² +7² -2·6·7·cos(29°) = 85 -84·cos(29°) ≈ 11.531944
HY ≈ √11.531944 ≈ 3.40 . . . . km
The length of the tunnel is about 3.40 km.
Find the distance between the points (-8,-11) and (14,-11).
Answers
Answer:
Distance =(x2−x1)2+(y2−y1)2−−−−−−−−−−−−−−−−−−√
Step-by-step explanation:
The answer is provided above.
Distance =(x2−x1)2+(y2−y1)2−−−−−−−−−−−−−−−−−−√
Hope this helps.
in schools lesson are 55 minutes long A Science lesson ends At 2:30 PM What time does it start
Answers
Answer:
1:35
Step-by-step explanation:
Answer:
1: 35pm
Step-by-step explanation:
5. Which is equivalent to 1/2
? Select all that apply.
A sin 30°
B sin 45°
C cos 45°
D cos 60°
E tan 30°
F tan 45º
Answers
Answer:
A sin 30°D cos 60°Step-by-step explanation:
Attached is a short table of trig function values. There are really only three you need to remember if you keep an image of the sine and cosine graphs in your head (for 0° and 90° values).
sin(α) = cos(90°-α)
tan(α) = sin(α)/cos(α)
__
sin(30°) = cos(60°) = 1/2 . . . . . . . the answer to this question
sin(45°) = cos(45°) = 1/√2 = (√2)/2
sin(60°) = cos(30°) = (√3)/2
__
I find it just as easy to remember SOH CAH TOA and the side ratios in isosceles and half-equilateral right triangles: 1:1:√2 and 1:√3:2, respectively.
the perimeter of this quarter circle with radius, r = 32mm. Give your answer as an expression in terms of π.
Answers
Answer:
16π + 64
Step-by-step explanation:
So the whole circumference is 64π
A quarter is 16π
Then you just have to account for the two radii.
16π + 64
Answer:
C≈201.06
16π + 64
Step-by-step explanation:
Radius: 32mm.
Solved for perimeter
Shape: Circle.
The correct answer to this question is C≈201.06.
You asked for 16π + 64.
Hope this helps.
SOMEONE PLEASE HELP ???
Which of the following proportionality statements is correct ?
Answers
Answer:
The third one is correct
Step-by-step explanation:
what does 5 1/2 * 4 equal
Answers
Answer:
22
Step-by-step explanation:
5 1/2 = 11/2
11/2 * 4/1
44/2
22
Answer:
22
Step-by-step explanation:
5.5 times 4 = 22
(5.5 = 5 1/2)
therefore the answer is
22
hope this helps!! ;)
An element with a mass of 740 grams decays by 28.4% per minute. To the nearest minute, how long will it be until there are 30 grams of the element remaining?
Answers
Answer:t=9.6 minutes
Step-by-step explanation:
Given
mass of element is [tex]A_o=740\ gm[/tex]
Decay rate [tex]r=28.4\%\ \text{per minute}[/tex]
and we know
Amount of exponential decay is given by
[tex]A=A_o[1-r]^t[/tex]
Where [tex]A_0=\text{Initial amount}[/tex]
[tex]\text{A=Accumulated amount}[/tex]
[tex]\text{r=rate}[/tex]
[tex]\text{t=time}[/tex]
Substituting values we get
[tex]\Rightarrow 30=740[1-0.284]^t[/tex]
[tex]\Rightarrow \dfrac{30}{740}=0.716^t[/tex]
[tex]\Rightarrow 0.0405=0.716^t[/tex]
taking log both sides we get
[tex]\Rightarrow\ \ln (0.0405)=t\times \ln (0.716)[/tex]
[tex]\Rightarrow t=\dfrac{\ln (0.0405)}{\ln (0.716)}[/tex]
[tex]\Rightarrow t=9.598\approx 9.6\ \text{minutes}[/tex]
Answer:
Delta math it’s 10
Step-by-step explanation:
There is a bag filled with 3 blue, 4 red and 5 green marbles.
A marble is taken at random from the bag, the colour is noted and then it is replaced.
Another marble is taken at random.
What is the probability of exactly 1 red?
Answers
Answer:
22.22%
Step-by-step explanation:
If it is exactly a red, it means that it is removed on the first or second attempt, but only once, in this case it does not matter if it is on the first or second attempt because the marble is returned to the bag.
So suppose that on the first attempt red is drawn, the probability would be:
4 / (3 + 4 + 5) = 4/12 = 1/3
Now, on the second attempt, it is not to draw a red, it must be green or blue, so it would be:
(5 + 3) / (3 + 4 + 5) = 8/12 = 2/3
The final probability then is:
1/3 * 2/3 = 0.2222
that is, the probability is 22.22%
Write the contrapositive of the conditional statement. Determine whether the contrapositive is true or false. If it is false, find a counterexample.
Two angles measuring 180 are supplementary.
Answers
Answer: A converse statement is formed by exchanging the hypothesis and conclusion of the conditional.
Step-by-step explanation:
1f 3/4 gallon of paint can cover 1/8 of the fence how many gallons will he need to paint the whole fence
Answers
Answer:
He will need 6 gallons of painting to paint the whole fence.
Step-by-step explanation:
Since 3/4 gallon of paint covered 1/8 of the fence, we have to multiply 3/4 by 8 in order to find the number of gallons that will paint the whole fence (because 8 x 1/8 = 1)
[tex]\frac{3}{4}[/tex] x [tex]\frac{8}{1}[/tex] = [tex]\frac{24}{4}[/tex] = 6
Hope this helps!
Working alone, Dan can sweep a porch in
15 minutes. Alberto can sweep the same
porch in 11 minutes. If they worked
together how long would it take them?
Answers
Answer:
It will take them 6.35 minutes
Step-by-step explanation:
The question can be solved when you know how much of the job can be done in minutes.
Therefore if Dan can do the job in 15 minutes he will be to sweep 1/15 of the porch in 1 minutes. Alberto can do the same job in 11 minutes, in 1 minutes he will do 1/11 of the job.
let
a = combined time together
1/15 + 1/11 = 1/a
(11 + 15)/165 = 1/a
26/165 = 1/a
cross multiply
26a = 165
divide both sides by 26
a = 165/26
a = 6.34615384615
a ≈ 6.35 minutes
It will take them 6.35 minutes
Find ,H assuming the triangles formed are similar.
Answers
Answer:
15
Step-by-step explanation:
if you divide 20 by 8, then you get 2.5. multiply that by six, and you get your answer.
Standard Cost Journal Entries Bellingham Company produced 4,600 units that require five standard pounds per unit at a $10.5 standard price per pound. The company actually used 22,500 pounds in production. Journalize the entry to record the standard direct materials used in production. For a compound transaction, if an amount box does not require an entry, leave it blank.
Answers
Answer:
Dr work-in-process $ 241,500.00
Cr materials $236,250
Cr direct material quantity variance $ 5,250.00
Step-by-step explanation:
The cost of the materials using standard price per pound of $10.5 is computed below:
standard cost=4,600*5*$10.5=$241,500.00
The above is debited to work in process account.
The actual cost of materials used =22,500*$10.5=$236,250.00
Since the actual cost materials is $ 236,250.00 ,the materials ledger is credited with $ 236,250.00
The direct material quantity variance=$241,500-$236,250=$5,250
Two models of the same compound are shown.

In what way is Model A better than Model B?
Model A shows the types of elements in the compound, but Model B does not.
Model A shows the total number of atoms in the molecule, but Model B does not.
Model A shows the three-dimensional shape of the molecule, but Model B does not.
Model A shows the number of atoms of each element in the molecule, but Model B does not.
Answers
Answer:
Step-by-step explanation:
Model B shows how the atoms in the molecule are connected, but Model A does not.
it is C
just did the test
HELp PLEASE WITH CORRECT ANSWER I NEED HELP I
find the area of the triangle the height is 12 in and the base is 3 in.
will mark brainliest
Answers
Answer:
18in²
Step-by-step explanation:
Answer: I know da way hehhe
Step-by-step explanation:
Base times height / 2
12*3= 36/2 =18
Roblox:Supertasticgg just follow me on roblox
SUB TO FLAMINGO IF U GET IT RIGHT hehehheheh
The Department of Highway Improvements, responsible for repairing a 25-mile stretch of interstate highway, wants to design a surface that will be structurally efficient. One important consideration is the volume of heavy freight traffic on the interstate. State weigh stations report that the average number of heavy-duty trailers traveling on a 25-mile segment of the interstate is 72 per hour. However, the section of highway to be repaired is located in an urban area and the department engineers believe that the volume of heavy freight traffic for this particular section is greater than the average reported for the entire interstate.
To validate this theory, the department monitors the highway for 50 1-hour periods randomly selected throughout the month. Suppose the sample mean and standard deviation of the heavy freight traffic for the 50 sampled hours are:
Sample mean = 74.1 standard deviation = 13.3
a) Do the data support the department's theory? Use α = 0.10 to come to a conclusion based on a large sample test.
Answers
Answer:
[tex]t=\frac{74.1-72}{\frac{13.3}{\sqrt{50}}}=1.116[/tex]
The degrees of freedom are given by:
[tex]df=n-1=50-1=49[/tex]
Now we can calculate the p value with the following probability:
[tex]p_v =P(t_{(49)}>1.116)=0.135[/tex]
Since the p value is higher than the significance level provided of 0.1 we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true mean is not significantly higher than 72 per hour.
Step-by-step explanation:
Information provided
[tex]\bar X=74.1[/tex] represent the sample mean
[tex]s=13.1[/tex] represent the sample standard deviation
[tex]n=50[/tex] sample size
[tex]\mu_o =72[/tex] represent the value that we want to test
[tex]\alpha=0.1[/tex] represent the significance level
t would represent the statistic
[tex]p_v[/tex] represent the p value
Hypothesis to test
We want to analyze if the true mean for this case is higher than 72, the system of hypothesis would be:
Null hypothesis:[tex]\mu \leq 72[/tex]
Alternative hypothesis:[tex]\mu > 72[/tex]
The statistic is given by:
[tex]t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}[/tex] (1)
Replacing the info we got:
[tex]t=\frac{74.1-72}{\frac{13.3}{\sqrt{50}}}=1.116[/tex]
The degrees of freedom are given by:
[tex]df=n-1=50-1=49[/tex]
Now we can calculate the p value with the following probability:
[tex]p_v =P(t_{(49)}>1.116)=0.135[/tex]
Since the p value is higher than the significance level provided of 0.1 we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true mean is not significantly higher than 72 per hour.
An outdoor club conducted a survey of its members. The members were asked to state their preference between skiing and snowboarding. Each member had to pick one. Of the 60 males, 45 stated they preferred to snowboard. Twenty-two of the 60 females preferred to ski. What is the relative frequency that a male prefers to ski?
Answer:
Answers
Answer:
0.25
Step-by-step explanation:
Data provided in the question
Number of males = 60
Number of stated preferred to snowboard = 45
Number of females preferred to ski = 22
Based on the above information, the relative frequency male preferred to ski is
Before computing this first we have to calculate the number of ski picked which is
= Number of males - Number of stated preferred to snowboard
= 60 - 45
= 15
Now the relative frequency is
[tex]= \frac{Number\ of\ ski}{Number\ of\ males}[/tex]
[tex]= \frac{15}{60}[/tex]
= 0.25
A video company randomly selected 100 of its subscribers and asked them how many hours of shows they watch per week. Of those surveyed 35 watch more than 10 hours per week. Based on the data, if the company has 3,000 subscribers, how many watch more than 10 hours per week?
Answers
Hello there!
35/100 watch more then 10 hours a week
3000 is 30 times greater than 100 so we can simply multiply 35/100 by 30.
35/100 x 30 = 1050/3000
Therefore, if the company had 3,000 subscribers, 1,050 subscribers would be watching more than 10 hours a week.
the corner cafe makes a bowl of oatmeal using 6 ounces of water and 4 ounces of oats. The breakfast shop makes a bowl of oatmealusing double the amount of water and oats.
Answers
Answer:it would have 12 ounces of water and 8 ounces of oats
Step-by-step explanation:
12 ounces of water and 8 ounces of oats.
What is proportion?Proportion is an equation that defines that the two given ratios are equivalent to each other. In other words, the proportion states the equality of the two fractions or the ratios. In proportion, if two sets of given numbers are increasing or decreasing in the same ratio, then the ratios are said to be directly proportional to each other.
Example, the time taken by train to cover 100km per hour is equal to the time taken by it to cover the distance of 500km for 5 hours.
Proportions are denoted by the symbol ‘::’ or ‘=’.Given,
Given, the proportion of the oatmeal in a bowl of corner café = 6 ounces of water and 4 ounces of oats.
the proportion of the oatmeal in a bowl of breakfast shop = double the amount water and oats used in corner café.
= 2×6 ounces of water and 2×4 ounces of oats
= 12 ounces of water and 8 ounces of oats
Hence, In making of oatmeal at breakfast shop there will be 12 ounces of water and 8 ounces of oats.
Learn more about proportion here:
https://brainly.com/question/2985210
#SPJ5
Joel had 4 liters of water. He drank 2.7 liters of water while he was hiking. How many liters does Joel have left?
Answers
Answer:
1.3 liters are left
Step-by-step explanation:
Take the amount of water he had and subtract the amount of water he drank
4.0
-2.7
-----------
Borrow
3.10
-2.7
-----------
1.3 liters are left
Answer:
1.3 liters
Step-by-step explanation:
In the given question: "Joel had 4 liters of water, and drank 2.7 liters of water while he was hiking. "
Subtract the total before the hike by the amount he drank during the hike.
[tex]4-2.7=1.3[/tex]
Joel should have 1.3 liters left.
Which statements about the cone are true? Check all that apply. The radius is double the diameter. The radius is 9 mm. The base area is calculated using the radius. The volume is one-third the volume of a cylinder with the same height and diameter. The volume of the cone is
Answers
Step-by-step explanation:
I think the question is incomplete without an attachment of the diagram of the cone, but we can make do with the information provided.
This problem test our knowledge on the mensuration of solid shape, cone and cylinder.Back to our question. the statements that apply are
The base area is calculated using the radiusThe volume is one-third the volume of a cylinder with the same height and diameter .the volume of the cone is expressed as [tex]v= \frac{1}{3}\pi r^{2}h[/tex]Answer:
2 3 4 5
Step-by-step explanation:
A copy machine makes 84 copies in 3 minutes and 30 seconds. How many copies does it make per minute
Answers
Answer:
24
Step-by-step explanation:
30 secs = 0.5 min
thus 84 / 3.5 min = 168 / 7 = 24
What is the surface area of a rectangular prism with a length of 16 cm, a width of 8 cm, and a height of 4 cm? (show your work in numbers)
Answers
Answer:
Step-by-step explanation:
Multiply base area * height
= 16 * 8 * 4 = 512 cm^3
Answer:
448
Step-by-step explanation:
it is correct trust me
What equation relates a and s to the $ 400 income total? Explain what
each term of the equation represents.
Answers
Answer:
You would need to show us what terms there are by taking a picture
Multiple choices answer and explain the solution?
Answers
Answer:
associative property of multiplication
Step-by-step explanation:
You cant rlly explain, you just have to know your properties
What is the slope of the line whose equation is y -2/3 = 0?
Answers
Answer: The slope is 0.
Step-by-step explanation:
y -2/3=0
+2/3. +2/3
y=2/3
A birthday party caterer counted the number of juice cups on the table. The cups contained different flavored juices and different shaped straws.
Heart-shaped straw Star-shaped straw
Orange juice 9 3
Grape juice 4 4
Pineapple juice 5 8
What is the probability that a randomly selected cup contains orange juice or contains a heart-shaped straw?
Simplify any fractions.
Answers
What is the slope of a line that passes through the points (-1,9) and (3,6)
Answers
Answer:
-3/4
Step-by-step explanation:
Between these two points, the x value changes by 4, and the y value changes by -3. Therefore, the slope of this line is -3/4. Hope this helps!
AB=6CM AC= 12cm
calculate the length of CD
Answers
AB=6cm AC=12cm
AC² = AB + BC²
12² = 6² + CB²
CB² = 12² - 6²
CB² = 144 - 36
CB² = 108
CB = √ 108 cm.
sin 55° = CB / CD
0.81915 = √108 / CD
CD = 10.392 / 0.81915
CD = 12.686 cm
Answer:
Step-by-step explanation:
This was a question on mathswatch, so I’ve done this.
You need to round to 3 significant numbers
AB=6cm AC=12cm
AC² = AB + BC²
12² = 6² + CB²
CB² = 12² - 6²
CB² = 144 - 36
CB² = 108
CB = √ 108 cm.
sin 55° = CB / CD
0.81915 = √108 / CD
CD = 10.392 / 0.81915
CD = 12.686 cm
CD = 12.7 cm