Answer:
[tex]2b^{2}[/tex] + 4b - 8
The inside of a right rectangular prism-shaped tank has a base that is 14 cm by 24 cm and a height of 60 cm. The
tank is filled to its capacity with water, and then 10.92 L of water is removed. How far did the water level drop?
Answer:
9.24l
Step-by-step explanation:
find the volume then change into litres
14*24*60=20160cm3
divide by 1000 to change it in to litres
20.16l
20.16-10.92=9.24l
A traffic consultant wants to estimate the true proportion of cars on a certain street that have more than two occupants. She stands at the side of the road for two hours on a weekday afternoon and flips a coin each time a car approaches. If the coin comes up heads, she counts the number of occupants in the car. After two hours, she has counted 103 cars, 15 of which had more than two occupants. Which condition for constructing a confidence interval for a proportion has she failed to satisfy
Answer:
The data is a simple random sample from the population of interest.
Step-by-step explanation:
Conditions necessary to consider when constructing a confidence interval include using a large sample size, which should be greater Than or equal to 30 for n and a sample proportion of np ≤ 10. Importantly the sample must be a random sample drawn from the population, meaning that all the population of interest must have equal chances of being a part of the sample data. However, the scenariomabiveb, violates this condition as the sampling design is not completely randomized. Those who do not ply the route on that certain day have no Chaves of being part of the sample.
20 points! Please help me out here!
If a calculator is sold for R120.00. What will the new price of a calculator be if the
original selling price is Increased in a ratio of 5:3
Answer:
300
Step-by-step explanation:
5/3=120/x
300
The new selling price of the calculator will be R200.00.
What is a fraction?A fraction is written in the form of p/q, where q ≠ 0.
Fractions are of two types they are proper fractions in which the numerator is smaller than the denominator and improper fractions where the numerator is greater than the denominator.
Given, If a calculator is sold for R120.00.
Now, The original selling price is increased by a ratio 5 : 3, which can also be written as 5/3.
Therefore, The new selling price of the calculator will be,
= (5/3)×12000.
= 5×4000.
= 20000.
learn more about fractions here :
https://brainly.com/question/10354322
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Tim and Jenna are surveying their classmates about their summer reading. Their questions are given below: Tim: Which author was promoted by the book reading club this month? Jenna: How many books that you read during the summer break would you recommend to your friends? Who wrote a statistical question and why? (1 point)
A. Tim, because there can be only one answer to the question
B. Jenna, because there can be many answers to the question
C. Tim, because there will be variability in the responses collected
D. Jenna, because every student will give the same answer
Answer:
b
Step-by-step explanation:
Answer:
The answer is B
Step-by-step explanation:
Based on the table, which function represents the same relationship?
(picture included)
#1: Find the volume of the cylinder below. Use 3.14 for . Round your answer to the nearest tenth, if necessary. *
Answer:
Volume of Cylinder=πr²h
22/7*2/1*2/1*5/1=
440/7=62.857 to nearest tenth
62.860, if u like u put the zero.
The average petrol consumption of a vehicle is 1 gallon per 35 km. The cost of 1 litre of petrol is $49. Fund the cost of petrol for a journey of 280 km.
(take 1 gallon=4.5 litres)
Step-by-step explanation:
Total petrol consumption of the journey=
Total distance travelled ÷ Average petrol consumption
[tex] = 280 \div 35 \\ = 8 \: gallons[/tex]
Given 1 gallon = 4.5 litres,
[tex]8 \: gallons \: = 8 \times 4.5 \\ = 36 \: litres[/tex]
Total cost of petrol for this particular journey = Petrol consumed x cost of 1 litre of petrol
[tex] = 4.5 \times 49 \\ = 220.50 \: dollars[/tex]
The circle graph below shows the percentages of a family budget used for different monthly expenses. The
family budget for the month is $2,300.
Family Budget
How much money does the family spend monthly on groceries?
Plz help
Answer:
ggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg
Step-by-step explanation:
A line passes through the point (-2,7) and has a slope of -5
Answer:
y - 7 = -5(x + 2) a = -1Step-by-step explanation:
The equation of a line which passes through (x₁, y₁) and with slope of m in point-slope form:
y - y₁ = m(x - x₁)
m = -5
(-2, 7) ⇒ x₁ = -2, y₁ = 7
y - 7 = -5(x - (-2))
y - 7 = -5(x + 2)
(a, 2) ⇒ 2 - 7 = -5(a + 2)
-5 = -5a - 10
5a = 5 - 10
5a = -5
a = -1
Wich set of ordered pairs does not represent a function.
Please help.
Answer:
D.
Step-by-step explanation:
A function has to have only one y-value for every x-value. This means that D is not a function because it contains (6,2) and (6, 4), which means that there are 2 different y-values for the x-value of 6.
Find the volume of a pyramid with a square base with a perimeter of the base is 5.7 cm in the height of the pyramid is 8.6 
Answer:
try 28.4 inches to the 3rd power
Step-by-step explanation:
A box of 12 tacos costs $9.96. At this rate, how much does one taco cost?
Answer:
0.83
9.96 divided by 12 is that
Part A
Juanita has an aquarium that is 5 feet long, 4 feet wide, and 2 feet deep.
What is the volume of the aquarium? Enter your answer in the box.
_______ft3
Part B
Juanita fills the tank with water so that it is 1 foot deep. What is the volume of the water?
_______ft3
Answer:
Part A: 40 cubic feet. Part B: 20 cubic feet
Step-by-step explanation:
Part A: 5×4×2 = 40 feet3
Part B: 5×4×1 = 20 feet3
The sales tax on clothing in Louisiana is 4% . Calculate how much tax you need to pay on a dress if it costs $19.50 before before tax. Round your answer to the nearest cent.
Answer:
.78 cents
Step-by-step explanation:
To find the tax amount on any number, divide that number by 100 and then multiple it by the tax percentage.
In this case that would look like: $19.50/100 times 4 =.78
please solve this root under x-2=cube root under 125
Step-by-step explanation:
x-2 = ²√125
x-2 = 22.36
x = 22.36 + 2
x = 24.36.
hope it helps. :/
A bag contains 3 red marbles and 4 blue marbles. A marble is taken at random from the bag and replaced. Another marble is taken from the bag.
Work out the probability that the two marbles taken from the bag are the same colour.
Give your answer as a fraction.
Answer:
25/49
Step-by-step explanation:
probability of red and red is (3/7)(3/7) = 9/49
Probability of blue and blue is (4/7)(4/7) = 16/49
Probability of same color = prob. of red and red or prob. of blue and blue
= 9/49 + 16/49
= 25/49
plz help me I only have 2 minutes left winner gets brainliest
Select which of the following is a major disadvantage of using nuclear power to generate electricity.
A small amount of power is produced
No greenhouse gases are produced
The power plants are inexpensive to build
The by-product of nuclear power is radiation
Answer:
D
Step-by-step explanation:
The by product of nuclear power is radiation as it is dangerous for health of living creatures and environment.
What is the value of x, given that RS||XY
Answer:
8
Step-by-step explanation:
x/16 = 6/12
cross multiply
12x=6*16
12x=96
divided by 12
x=8
The angle of elevation from a car to a tower is 32 degree. The tower is 150 ft. tall. How far is the car from the tower? Round to the nearest tenth.
Answer:
240.1 ft (nearest tenth)
Step-by-step explanation:
Please see the attached picture for the full solution.
A cruise ship can cover 17 nautical miles in 391 minutes. How many nautical miles will it travel in 230 minutes?
A. 10
B. 12
C. 14
D. 8
Plz help me!! I need explanation to help me understand a bit.
10) On Tuesday Imani bought eight hats. On
Wednesday half of all the hats that she had
were destroyed. On Thursday there were
only 21 left. How many did she have on
Monday?
one can of waterproofer covers 100 square feet. you want to apply two coats of waterproofer to the wooden crates. How many cans of waterproofer do you need?
Answer:
Hello! its 1
Step-by-step explanation:
Solve for b pythagorean theorem! someone plz help meeeee
Answer:
3
Step-by-step explanation:
Since we already know c, so we need to find b.
c² = a² + b²
5² = 4² + b²
b² = 5² - 4²
b² = 25 - 16
b² = 9
b = 3
Max has sticks of lengths 6, 7, 8, and 10 inches. He wants to make a right triangle for an art project. Which 3 sticks should he use? 6 in., 7 in., and 8 in. 6 in., 7 in., and 10 in. 6 in., 8 in., and 10 in. 7 in., 8 in., and 10 in.
Answer:
6in, 8in and 10in
Step-by-step explanation:
For a right angled triangle :
The hypotenus, thee longest side in The triangle should be :
Hypotenus = sqrt((opposite² + adjacent²))
The most appropriate from the option would be :
6in, 8in and 10in
Hypotenus = sqrt((6² + 8²))
Hypotenus = sqrt(36 + 64)
Hypotenus = sqrt(100)
Hypotenus = 10
Answer:
C. 6 in., 8 in., and 10 in.
Step-by-step explanation:
Just did it on edge
solve for x!........
Answer:
x = 11
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
11x + 2 is an exterior angle of the triangle, then
11x + 2 = 5x + 10 + 58
11x + 2 = 5x + 68 ( subtract 5x from both sides )
6x + 2 = 68 ( subtract 2 from both sides )
6x = 66 ( divide both sides by 6 )
x = 11
What is the circumference of 196 pi
The model shows 4 = 2x - 2 What value of x makes the equation true?
Answer:
You showed no model. However, looking at this equation it seems the answer would be x=3.
Step-by-step explanation:
Add 2 to both sides which leaves you with 6=2x and then divide both sides by 2 to get x=3.
A council tax bill costs £1920 annually if the bill is paid in monthly instalments how much will the payments be per month
Answer: 160
Step-by-step explanation:1920 divided by 12