Answer:
4.
Solution given:
length of base[a]=2.2m
slant height [l]=1.9m
Total surface area=?
we have
Total surface area of a square pyramid :
area of base+ curved surface area
:a²+2al
:2.2²+2*2.2*1.9
:13.20 m²
SoA. 13.20 sq m is a required answer.
5.
Solution given:
length [l]=15cm
wide [w]=10cm
height[h]=8cm
total surface area of cuboid =?
we have
total surface area of cuboid =sum of area of all side.
=2[lw+lh+wh]
=2[15×10+15×8+10×8]
=700cm²
D. 700 sq cm is a right answer.
Solve for x. Round to the nearest tenth of a degree, if necessary
Answer:
46.5482 degrees
Step-by-step explanation:
tan inverse of (5.7/5.4)
HELP!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
100.53
Step-by-step explanation:
i think this is correct
9514 1404 393
Answer:
32π ≈ 100.48 units²
Step-by-step explanation:
The formula for the volume of a cylinder is ...
V = πr²h
For a radius of 2 and a height of 8, the volume is ...
V = π(2²)(8) = 32π ≈ 100.48 . . . units²
What are the answer
Answer:
1)556.11 cm²
2)164.05 cm²
3)117.70 cm²
Step-by-step explanation:
1) We have a cylinder and a cone on top of it.
Formula for total surface area of cylinder is;
T.S.A = 2πrh + 2πr²
However, the top is not available for calculation here. Thus, we will use;
TSA = 2πrh + πr²
Thus;
TSA = 2π(5 × 12) + π(5)²
TSA = 455.53 cm²
The top is a cone but it's bottom is not included and so we will use lateral surface area of cone = πrL
L is the slanting height and can be calculated from pythagoras theorem ;
L = √(5² + 4²)
L = √41
Thus;
LSA = π × 5 × √41 = 100.58 cm²
Overall surface area = 455.53 + 100.58. Overall surface area = 556.11 cm²
2) for the box down;
TSA = 2lw + 2lh + 2hw
Since the top face is not used, then
TSA = lw + 2lh + 2hw
TSA = (5 × 5) + 2(5 × 5) + 2(5 × 5)
TSA = 125 cm²
For the prism on top, since the bottom is not included, we will use lateral surface are;. LSA = ½Pl
Where P is perimeter of base and L is slant height.
P = 5 × 4 = 20 cm
Radius is 5/2 = 2.5 and so using pythagoras theorem;
L = √(2.5² + 3²)
L = 3.905 cm
Thus;
LSA = ½ × 20 × 3.905 = 39.05 cm²
Overall surface area = 39.05 + 125 = 164.05 cm²
C) for the box down;
TSA = 2lw + 2lh + 2hw
Since the top face is not used, then
TSA = lw + 2lh + 2hw
TSA = (4 × 4) + 2(4 × 4) + 2(4 × 4)
TSA = 80 cm²
For the half cylinder on top;
Surface area ;
T.S.A = 2πrh + 2πr²
Since half cylinder;
TSA = πrh + πr²
TSA = π((2 × 4) + 2²))
TSA = 37.7 cm²
Overall total surface area = 80 + 37.7 ( 117.70 cm²
What is the area of the figure? A 80 square inches 88 square inches C. 96 square inches D. 120 square inches
Answer:
88
Step-by-step explanation:
find the area of the polygon
Answer:
Finally I can answer omg been trying to answer for a while but that bot was holding me back Lol
Answer: 286
Step-by-step explanation:
25 × 16 = 400 19 × 6 = 114 400 - 114 = 286 therefore 286 is the answer hope that helps!
Which solid has a greater volume?
Answer: B
Step-by-step explanation:
Step-by-step explanation:
C - equation for a cylinder is as follows V=πr2h Wich equals the same as the equation for a cone which is V=πr2h/3 and totals 235.62
38°
24 in
A restaurant owner plans to install this bicycle rack in front of her restaurant. In order to meet city safety requirements, the base
of the bicycle rack cannot exceed 20 inches so as to not obstruct pedestrians. Will this bicycle rack be approved by the city?
Answer:
39
Step-by-step explanation:
Yes, the base of the bicycle rack measures about 15 inches.
Whta is the sin angle?The sine (sin) of an acute angle in a right angled triangle is the ratio between the side opposite the angle and the hypotenuse of the triangle.
A restaurant owner plans to install this bicycle rack in front of her restaurant.
In order to meet city safety requirements, the base of the bicycle rack cannot exceed 20 inches so as to not obstruct pedestrians.
The base of the bicycle is ;
In the right angle triangle;
[tex]\rm = sin38 \times 24\\\\ =0.61 \times 24\\\\=14.77[/tex]
Yes, the base of the bicycle rack measures about 15 inches.
Hence, Yes, the base of the bicycle rack measures about 15 inches.
Learn more about sin angle here;
https://brainly.com/question/18597026
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What shape has A pair of lines that form a right angle
How does the graph of the function g(x)=2^x-4 differ from the graph of f(x)=2^x
Answer:
The graph of g(x) is the graph of f(x) moved down 4 units.
Step-by-step explanation:
Subtracting a function by a constant:
Subtracting a function by a constant x is the same as moving the function down x units.
In this question:
[tex]f(x) = 2^x[/tex]
[tex]g(x) = 2^x - 4[/tex]
Thus, the graph of g(x) is the graph of f(x) moved down 4 units.
the length of a rectangle is four times it's width.if the perimeter is 70cm. Calculate the length and area of the rectangle
Answer:
length=28 cm
the area = 196 cm²
Step-by-step explanation:
length = 4 × width
2×(4w+w) = 70
2×5w=70
10w=70
w= 7 cm
length = 4×7 = 28 cm
the area = 28 ×7 = 196 cm²
Khalil recorded the grade-level and instrument of everyone in the middle school
School of Rock below.
Seventh Grade Students
Eighth Grade Students
Instrument # of Students
Instrument # of Students
12
Guitar
11
Bass
Guitar
Bass
Drums
Keyboard
14
13
5
4
4
Drums
Keyboard
14
Based on these results, express the probability that a student chosen at random will
play the drums as a decimal to the nearest hundredth.
Answer:
0.12 !!!!
Step-by-step explanation:
JUST TRUSE MEEEE!!!!
A certain television is advertised as a 90-inch TV (the diagonal length). If the
height of the TV is 63 inches, how wide is the TV? Round to the nearest tenth
of an inch.
Answer: 64.3
Step-by-step explanation:
There was an array of delicious dishes at the picnic. The guests could not decide which of the many foods they should try first.
What is the correct meaning of an array in this context?
A) an overage
B) a tray
C) a menu
D) an assortment
Help I need fast school is almost out ill give brainliest
Answer:
11
Step-by-step explanation:
a^2 + 3b / c - 2d
put the numbers in the equation
3^2 + 3 x 8 / 2 - 2 x 5
pedmas
3^2 would be first, then 3 x 8, then that answer divided by 2, then 2 x5
9 + 12 - 10
left to right
9 + 12 = 21
21 - 10 = 11
Answer:
the correct answer is 11
+ (3x8)/2 - (2x5)
9+ - 10
9+12-10=11
Step-by-step explanation:
The table below shows the relationship between C, the cost in dollars of a piece of gold, and W, its weight in ounces.
Cost of Gold Based on Weight
Cost (C ) in
Dollars Weight (W ) in
Ounces
7,200 12
13,200 22
19,200 32
Which equation could be used to determine the cost of a piece of gold of any weight?
(any links, or incorrect answers will be reported and banned)
Answer:
Solution given:
12 Ouches =$7200
per Ouches =$7200/6=$600
So
the required equation for the cost of any weight of gold is:
C.
600W=C is a required equation.
Answer:
600W=C
Step-by-step explanation:
.......................
What is 2x 2 5/6 I need help due in 6 min
Answer:
5 2/3
Step-by-step explanation:
2 * 2 5/6
2 * (12+5/6)
2 * (17/6)
34/6
17/3 = 5 2/3
If your car used 19.2 gallons of gas to go 1293.6 miles, how many miles per gallon (mpg) did the car get?
how many 5- digit numbers are there in all the number system
Answer:
The smallest 5 digit number is 10,000 and the greatest 5 digit number is 99,999. There are 90,000 five-digit numbers in all.
There are 16 girls and 18 boys in a class. The teacher Chooses a students name at random to answer a question. What is the probability that the teacher chooses a girl to answer the question?
Step-by-step explanation:
girl=16
boy=18
picking a girl at random
the answer is = 1/16
Select Parameter or Statistic to classify each statement.
Information Parameter Statistic
85% of the golf teams surveyed have teammates that can break 80.
Parameter – 85% of the golf teams surveyed have teammates that can break 80.
Statistic – 85% of the golf teams surveyed have teammates that can break 80.
According to the survey, each member of the soccer team has an average of 2 jerseys.
Parameter – According to the survey, each member of the soccer team has an average of 2 jerseys.
Statistic – According to the survey, each member of the soccer team has an average of 2 jerseys.
Of the 28 swim teams surveyed across America, 5 of them practice 10 hours a week.
Parameter – Of the 28 swim teams surveyed across America, 5 of them practice 10 hours a week.
Statistic – Of the 28 swim teams surveyed across America, 5 of them practice 10 hours a week.
Basketball teams in the district have won at least 3 games for every 5 they have played.
Parameter – Basketball teams in the district have won at least 3 games for every 5 they have played.
Statistic – Basketball teams in the district have won at least 3 games for every 5 they have played.
Answer:
1) Statistic
2) Statistic
3) Statistic
4) Parameter
Step-by-step explanation:
Took test and got it right
Parameter or Statistic to classify each statement:
1. Statistic
2.Statistic
3. Statistic
4. Parameter
What is parameter and statistic?A parameter is a number describing a whole population (e.g., population mean), while a statistic is a number describing a sample (e.g., sample mean). The goal of quantitative research is to understand characteristics of populations by finding parameters.
1. 85% of the golf teams surveyed have teammates that can break 80.
This only refers to the surveyed people, so this only refers statistic statement.
2. According to the survey, each member of the soccer team has an average of 2 jerseys.
As in this case, the soccer team is considered as sample then this is a statistic.
3. Of the 28 swim teams surveyed across America, 5 of them practice 10 hours a week.
Here the information is about the sample (only 28 swim teams). So here this is statistic.
4. Basketball teams in the district have won at least 3 games for every 5 they have played
Here the information is about the number of games win, which was taken from whole population in this case this is parameter.
Learn more about this concept here:
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A school has 726 students. There are 340 boys. To the nearest whole percent, what percent of the students are girls?
HELP PLEASE?!?
Find the number of girls by subtracting number of boys from total:
726 - 340 = 386 girls
Divide number of girls by total students:
386/726 = 0.53168
Multiply by 100 get get percent:
0.53168 x 100 = 53.168%
Round to the nearest whole percent: 53% are girls
A florist arranged some orchid in bouquets of 20 and some roses in bouquets of 10 . She sells each bouquet of orchid for $25 and each rose bouquet for $30 . She earns $390 . If she sell four times as many orchid bouquets as rose bouquets. How many flowers does she sell all together?
Answer:
The florist sold 270 flowers.
Step-by-step explanation:
Since a florist arranged some orchid in bouquets of 20 and some roses in bouquets of 10, and she sells each bouquet of orchid for $ 25 and each rose bouquet for $ 30, and she earns $ 390, if she sell four times as many orchid bouquets as rose bouquets, to determine how many flowers does she sell all together, the following calculation must be performed:
4 x 25 + 1 x 30 = 130
8 x 25 + 2 x 30 = 260
12 x 25 + 3 x 30 = 390
12 x 20 + 3 x 10 = X
240 + 30 = X
270 = X
Therefore, the florist sold 270 flowers.
I really need help please!!
A marketing research company desires to know the mean consumption of milk per week among people over age 31. A sample of 343 people over age 31 was drawn and the mean milk consumption was 4.4 liters. Assume that the population standard deviation is known to be 0.9 liters. Construct the 90% confidence interval for the mean consumption of milk among people over age 31. Round your answers to one decimal place.
Answer:
(4.3 ; 4.5)
Step-by-step explanation:
Given :
Sample size, n = 343
Sample Mean, xbar = 4.4
Standard deviation, σ = 0.9
Zcritical at 90%
Using the relation :
Xbar ± Margin of error
Margin of Error = Zcritical * σ/√n
Margin of Error = 1.645 * (0.9/√343)
Margin of Error = 0.0799394
Lower boundary = 4.4 - 0.0799394 = 4.320
Upper boundary = 4.4 + 0.0799394 = 4.480
(4.320 ; 4.480)
Write a quadratic function h whose zeros are 1 and 4
Answer:
x² - 5x + 4
Step-by-step explanation:
work backwards from knowing zeros to writing factors, then use foil method
(x - 1)(x - 4)
x² - 4x - 1x + 4
x² - 5x + 4
275 divided by 9 Plz help me when you can.
Answer:
30.5555555556
Step-by-step explanation:
Solve the simultaneous equation
2x-3y =8 x+3y=14
Use elimination method....
Answer:
x = 22/3 y = 20/9
Step-by-step explanation:
2x-3y =8 x+3y=14
Add the two equations together to eliminate y
2x-3y =8
x+3y=14
-------------
3x +0y = 22
Divide each side by 3
3x/3 = 22/3
x = 22/3
Then take the second equation and multiply by -2 and add to eliminate x
2x-3y =8
-2x-6y=-28
----------------------
-9y = -20
Divide by -9
-9y/-9 = -20/-9
y = 20/9
x = 22/3 y = 20/9
HELP HELP HELP WHAT IS THE ANSWER TO THIS PLEASE HELP ME YOU'LL GET 50+ BRAINLIEST POINTS AND BRAINLEIST HELP PLEASE
Answer:
1055.58 cube inches
Step-by-step explanation:
radius time height
If two pyramids are similar and the ratio between the lengths of their edges is 2:7, what is the ratio of their volumes? O A. 49:4 O B. 2:7 O C. 4:49 O D. 8.343
Answer:
D. 8.343
Step-by-step explanation:
what is the quotient? 57,263/28
Step-by-step explanation:
R= 2,045.1071428571 espero sea lo que necesitas :)