Answer:
Alfred will not arrive in his city at 8 PM, but he will arrive at approximately 8:20 PM.
Step-by-step explanation:
Since Alfred departs from NAMPO Park at 18:45 and travels to Sasolburg at an average speed of 88 km / h, and he calls his wife to inform her that he will arrive in Sasolburg at 8 pm, to determine if his estimate is correct the following calculations must be performed:
The shortest route from Nampo Park to Sasolburg in South Africa is 139 km via Route 59.
8 PM = 20:00
20:00 - 18:45 = 1:15
139/88 = 1.57
60 x 0.57 = 34.74
Thus, Alfred will not arrive in his city at 8 PM, but he will arrive at approximately 8:20 PM.
Dmitri wants to cover the top and sides of this box with glass tiles that are 1 cm square. How many tiles
will he need?
8 cm
20 cm
Dmitri will need
18 cm
glass tiles.
9514 1404 393
Answer:
968
Step-by-step explanation:
The area of the top and sides is given by the formula ...
A = LW +2H(L +W)
A = (20 cm)(18 cm) +2(8 cm)(20 cm +18 cm)
A = (360 +16(38)) cm² = 968 cm²
Since the tiles are 1 cm², 968 tiles are needed.
If Dede uses 10 cups of yellow paint, how much blue paint should she use to make this
same shade of green?
Answer:
10 cups
Step-by-step explanation:
Answer:
10 cups
Step-by-step explanation:
10 × 2 = 20
20÷2= 10
Use △GHJ, where A, B, and C are midpoints of the sides.
When AB = 3x+8 and GJ = 2x+24, what is AB?
please help me i font understand not alink please i need it now
9514 1404 393
Answer:
25 km/h
Step-by-step explanation:
The relation between speed, time, and distance is ...
speed = distance/time
distance = speed × time
__
The distance relation is used to find the distance on the first line of the table. The problem statement tells you all of the distances are the same.
The speed relation is used to find the speed on the remaining lines of the table. For the average speed, the total distance and total time are used in the computation.
The average speed is 25 km/h.
All of the following numbers are rational except _____.
Answer:
D 1.44
Step-by-step explanation:
the answer is the last one 1.44
Answer:
√17
Step-by-step explanation:
√121 = 11
√25 = 5
√1.44 = 1.2
√17 is an irrational number/
There are 900 students at a school. You receive two thirds of he votes for best student ever! About how many
votes would you expect to receive?
Answer:
~600 votes
Step-by-step explanation:
Notice how 900 is a multiple of 3. Multiplying by 2/3 is the same as saying as divide the total by 3, then multiply that result by 2. Thusly, 900/3=300 and 300*2=600. Therefore, you should expect around 600 votes.
If I helped, a brainliest would be greatly appreciated!
Help me out here.........
Answer:
G. 10.5 pounds
Step-by-step explanation:
96 oz + 72 oz = 168 oz
There are 16 oz in one pound
168 oz / 16 oz = 10.5 pounds.
Please be sure to mark this as brainliest if it helpd you!
Answer:
Step-by-step explanation:
Total ounces = 96 + 72 = 168 ounces
1 ounce =
0.0625 pound
168 ounces = 10.5 pound
Option G is the correct answer
At a snack bar, each medium drink costs $1.85 and each large drink cost c more dollars than a medium drink. If 5 medium drinks and 5 large drinks cost a total of $20.50, what is the value of c?
A) 0.45
B) 0.40
C) 0.30
D) 0.25
Answer:
B) 0.40
Step-by-step explanation:
m = 1.85
l = 1.85 + c
With 5 medium drinks and 5 large drinks:
C = 5m + 5l
20.5 = 5(1.85) + 5(1.85 + c)
20.5 = 9.25 + 9.25 + 5c
20.5 = 18.5 + 5c
5c = 20.5 - 18.5
5c = 2
c = 2/5 = 0.4
Find x to the nearest tenth. Click on the pic i really need help
Answer:
140 degrees i think
Step-by-step explanation:
A quality control expert wants to estimate the proportion of defective components that are being manufactured by his company. A sample of 300 components showed that 20 were defective. How large a sample is needed to estimate the true proportion of defective components to within 2.5 percentage points with 99% confidence?
A sample size of approximately 9909 components is needed to estimate the true proportion of defective components within 2.5 percentage points with 99% confidence.
To estimate the true proportion of defective components with a desired level of confidence and precision, we can use the formula for sample size determination in a proportion estimation problem.
The formula is given by:
n = (Z² p (1-p)) / E²
Where:
- n is the required sample size,
- Z is the Z-value corresponding to the desired confidence level (in this case, 99% confidence),
- p is the estimated proportion of defective components from the initial sample (20/300 = 0.0667),
- (1-p) is the estimated proportion of non-defective components,
- E is the desired margin of error (2.5 percentage points = 0.025).
Determine the Z-value corresponding to a 99% confidence level. The Z-value can be obtained from a standard normal distribution table or using statistical software. For a 99% confidence level, the Z-value is approximately 2.576.
Substitute the values into the formula:
n = (2.576² * 0.0667 * (1-0.0667)) / (0.025²)
n = (6.641 * 0.9333) / 0.000625
n = 6.194 / 0.000625
n ≈ 9908.8
Therefore, a sample size of approximately 9909 components is needed to estimate the true proportion of defective components within 2.5 percentage points with 99% confidence.
More can be learned about proportions at;
brainly.com/question/24372153
#SPJ4
Completed Attempt 1
2
x
4
6
9
10
This net will be folded to form a prism.
C.
A
B.
С
D
E
F
Which pairs of faces will be opposite one another when the prism is created? Check all that apply.
D and F
A and C
A and B
Answer:
A & C
B & E
D & F
Step-by-step explanation:
Leave a like if this helped
Lucy can choose one sandwich ham or turkey, once side apple or grapes, one drink milk or water. Lucy has equally likely chance of choosing any combination. What is the probability that Lucy picks a ham sandwich and grapes?
1/4
or
1/6
Answer:
1/4
Step-by-step explanation:
i got this question on a test
Write down the next two terms into the given sequence :
-1; 1; 3 ;
Answer:
5 ;7
explantion:
-1+2=1
1+2=3
3+2=5
5+2=7
the pattern is +2
please assist me with these multiple choice problems
9514 1404 393
Answer:
12. C
13. D
Step-by-step explanation:
12. For interest r on principal P compounded n times per year for t years, the account balance is ...
A = P(1 +r/n)^(nt)
For P=800, r=0.05, n=365, t=6, this becomes ...
A = 800(1 +0.05/365)^2190 . . . . matches choice C
Note: if you're familiar with the formula, you will notice choice C is the only one with 'n' in the right place.
__
13. The form of an exponential function is ...
y = a·b^x . . . . . . . . where 'a' is the initial value, and 'b' is the growth factor
The form of the equation eliminates choices A and B.
Here, the initial value is 1.87, eliminating choice C.
Matching the problem statement to the form of the exponential function we see that the equation of choice D is appropriate.
What are the midline, amplitude, and period of this function?
у
2
1.5
1
0.5
х
-21
-11
0
2n
-O
-1
-1.5
-2
-2.5
-3
-3.5
-4
The midline is y =
The amplitude is
The period is
7T
The midline is y = -2, the amplitude is 1.5, and the period is 4π if the because function completes one revolution in 4π.
What is a function?It is defined as a special type of relationship and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
From the graph:
The midline is the horizontal line about which the graph of a function oscillates
y = -2
The amplitude is the half vertical distance the function travels around the midline.
Amplitude = 1.5
The period: the distance traveled to complete the one rotation:
Period = 4π
Thus, the midline is y = -2, the amplitude is 1.5, and the period is 4π if the because function completes one revolution in 4π
Learn more about the function here:
brainly.com/question/5245372
#SPJ2
Answer:
Step-by-step explanation:
The census is a survey of the population that gathers various details about individuals, such as age. This survey observed
that 155 out of every 200 people were 18 years old or older, Determine the probability of randomly selecting a person that
was 18 years old or older,
Express your answer as a fraction,
Answer:
31/40
Step-by-step explanation:
Just simplify the fraction
Answer:
31/40
Step-by-step explanation:
Simplify
Elevii au studiat o schiță a corpului uman. Ei au observat că ar putea trasa pe schiță un
cerc pentru care centrul O și punctele A , B și C sunt corespunzătoare unor structuri
anatomice.
Cercul este reprezentat în figura alăturată. Centrul
cercului este punctul O, BC este diametru al cercului, iar
punctul A este situat pe cerc, astfel încât ∢BAO = 60° . Raza
cercului este de 2cm .
6. Calculează lungimea diametrului BC .
7. Determină măsura arcului mic AC .
Answer:
an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable(s).
The length of a rectangle is 3 yd more than twice the width, and the area of the rectangle is 54 yd?. Find the dimensions of the rectangle.
Answer:
The length of the rectangle is 37 yards, and the width of the rectangle is 17 yards.
Step-by-step explanation:
Given that the length of a rectangle is 3 yards more than twice the width, and the area of the rectangle is 54 yards, the following calculation must be performed to find the dimensions of the rectangle, knowing that the area of a rectangle arises from multiplying its base by its height:
2X + 3 + X = 54
3X + 3 = 54
3X = 54 - 3
X = 51/3
X = 17
(17 x 2) + 3 = 37
Therefore, the length of the rectangle is 37 yards, and the width of the rectangle is 17 yards.
Select the
outliar i the data set 1,64,66,68,69,70,78,79
Answer:
1 is the out liar
Step-by-step explanation:
This is because there is a huge gap between 1 and 64. The rest of the numbers are in a cluster.
ay know what 10,000 x 1 is
Answer:
1
Step-by-step explanation:
any thing times 1 is 1
Here are summary statistics for randomly selected weights of newborn girls: n=250, x_=32.9 hg, s= 6.9 hg. Construct a confidence interval estimate of the mean. Use a 95% confidence level. Are these results very different from the confidence interval 31.9 hg < μ < 34.5 hg with only 19 sample values, x_=33.2 hg, and s=2.6hg? What is the confidence interval for the population mean μ?
Answer:
a) ( 31.92 < μ < 33.88 )
The confidence interval is not very different from the confidence interval given in the question
b) ( 31.74 , 34.66 )
Step-by-step explanation:
n = 250
x ( mean ) = 32.9
std = 6.9
95% confidence interval
df = n - 1 = 250 - 1 = 249
a) construct confidence interval estimate
calculate for the margin of error
= [tex]t_{0.05/2} ,_{250-1} ( \frac{s}{\sqrt{n} } )[/tex] ( using excel function: T.INV.2T(0.025,249) )
= 2.255 ( 6.9 / 15.81 )
= 0.98
Hence the confidence interval for the population
= ( x - 0.98 < μ < x + 0.98 )
= ( 31.92 < μ < 33.88 )
The confidence interval is not very different from the confidence interval given in the question
b) when n = 19
x = 33.2 and std = 2.6
margin of error = [tex]t_{0.05/2} ,_{19-1} ( \frac{s}{\sqrt{n} } )[/tex] = 2.45 * ( 2.6 / 4.36 ) = 1.46
confidence interval
= ( 33.2 - 1.46 , 33.2 + 1.46 )
= ( 31.74 , 34.66 )
A large firm that owns a chain of grocery stores wanted to see if they could increase the average number of patrons who visit by implementing a rewards member program. To test this, they randomly chose half of their 60 locations and started the rewards program only at those locations, while the other half of locations did not receive the rewards program. They also collected information the amount of money spent on these extra customers. Which of these answers represents an element of randomization in this study?
a. use a computer program to select the locations have a rewards program and those that don't
b. have an unbiased person just pick half of the stores to have the rewards program
c. allow store managers to volunteer
Answer:
a. use a computer program to select the locations have a rewards program and those that don't.
Step-by-step explanation:
Randomization refers to an important statistical procedure used to eliminate bias in a study. With randomization, all subjects in the study possess equal chances of being selected. In the study scenario described above, randomly choosing half of their total location to partake in the reward program would involve the use of a technique which isn't liable of introducing bias into the study either deliberately or systematically. The use of store managers or other human in the selection process won't be totally convincing at preventing bias. Hence, a computer program will do.
A large firm that has a chain of the grocery stores has implemented a reward member program to increase the visits of patrons. In order to check this, they test the same at 60 different locations.
They do this by collecting information about the money spent and the number of customers Hence they use a computerized program that allows for asking reward programs and checks those who are eligible for the rewards. The store manager of the chain store has placed such as system in place. This system is simple as it tracks those who have not yet got the rewards by checking their information.Hence the option is A is correct.
Learn more about the firm that owns a chain of grocery stores wanted to see.
brainly.com/question/12385859.
Help please and explain
Answer:
Volume of a cone = 50 in³
Step-by-step explanation:
diameter = 5 in
radius = 2.5 in
height = 8 in
Volume of cone = [tex]\frac{\pi r^2h}{3}[/tex]
V = (3 × 2.5 × 2.5 × 8)/3
V = 150/3
V = 50 in³
https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-geometry-topic/cc-6th-volume-with-fractions/e/volume_with_fractions?modal=1
???? Do we go to that website to answer the question? I’m lost
find the missing length
Answer:
PQ=36
Step-by-step explanation:
If the triangles are similar, then they must have a common ratio between them.
RQ corresponds with CB, so [tex]\frac{84}{18}=\frac{14}{3}[/tex]
If the ratio is [tex]\frac{14}{3}[/tex], then [tex]\frac{168}{\frac{14}{3}}=36[/tex], so PQ=36.
HELPPPLPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
It is C. 42 oz
--------
What is the value of X in the equation. X- 4.3 = 2.5
Answer:
6.8
Step-by-step explanation:
4.3+2.5=6.8
6.8-4.3=2.5
Answer:
6.8 is x value to be put
12xy {}^{2} +xy {}^{2}z +3xy
[tex] {?}^{2} [/tex]
Answer:
xy(12y + yz + 3)
Step-by-step explanation:
GCF = xy
Take (xy) from each term
12xy² + xy²z + 3xy = xy(12y + yz + 3)
I need an Answer not a link.
Answer: C
Step-by-step explanation:
Plz tell me if i am wrong
You need to buy pizzas for a class party. You can buy 4 large
pizzas for $10.00, or 7 large pizzas for $19.25. Which is the better
buy?
Answer:
4 pizzas for 10
Step-by-step explanation:
Divide the prices by the number of pizzas and you will get the prices per pizza.
2.50$ per pizza for 4
2.75$ per pizza for 7