A box contains 45 cubes numbered 1-45. What is the probability of pulling out 2 primes in a row if the first one is. It replaced?
Answer:
1/9
Step-by-step explanation:
prime #'s between 1 and 45:
2,3,5,7,11,13,17,19,23,27,29,31,37,41,43
P(prime,prime) = 15/45 × 15/45 or 1/3 × 1/3
Please help me find the cube root of 1-i and the square root of i. Leave your answers in Trig form
Answer:
Step-by-step explanation:
Suppose we know that the width of a rectangle is 3 3/4 cm and the area is 15 square cm. Write and solve a division equation to help you find the length of the triangle.
Answer:
Step-by-step explanation:
A=LW
L=A/W, given A=15 and W=3.75
L=15/3.75
L=4cm
Which is a solution to the linear inequality 2x-y>6 select all that apply
A(-1,2)
B (3,7)
C (4,0)
D (1,-5)
Answer:
c. and D.
Step-by-step explanation:
Need help with this trigonometry word problem
From the top of the tower 30 m height a man is observing the base of a tree at an angle of depression measuring 30 degree. Find the distance between the tree and the tower.
Please show your work
Answer:
30√3 m ≈ 52 m
Step-by-step explanation:
The side ratios in a 30°-60°-90° triangle are 1 : √3 : 2. The long leg of the triangle is √3 times 30 m, or about 51.96 m.
The distance between the tree and the tower is about 30√3 m ≈ 52 m.
__
If you haven't memorized the ratios of this special triangle, you can use the relation ...
Tan = Opposite/Adjacent
tan(30°) = 30/d
d = 30/tan(30°) = 30√3 = 51.96 . . . . same as above
solve using the triangle sum therom
Please help me with this
Answer:
D. complementarly
Step-by-step explanation:
Complementary angles add to 90°
Luis saved 5/8 of his pay. What percent of his pay did he save?
The cross country team practice by jogging on town steerts the average jogging rate is 6 mile per hour one member jogged for 3.5 hours one weekend how many miles did the team member jogged
Answer:
6mile + hour + 3.5 hours + miles
Step-by-step explanation:
add the expressions
WILL MARK BRAINLIEST PLS HELP
The circumference of a circle is 18.41 feet. What is the approximate length of the radius?
2.8 feet
2.9 feet
3.0 feet
Answer:
2.9 feet
Step-by-step explanation:
What is the geometric mean of 6 and 16?
I think its 9.7980........
the elevator at an old hotel has a weight limit of 1200 pounds. Assume the average person weighs 150 pounds and has a 10 pound luggage. What is the greatest amount of people that can ride the elevator at the same time
A: 7 people
B: 9 people
C: 11 people
D: 13 people
what is the area of the figure below
Answer:49.5
Step-by-step explanation:
Since all sides of a square are equal, multiply 6 x 6. Then multiply 6 times 4 1/2 then divided by 2. Now add everything together. Hopefully this helps :)
Which function is equivalent to
f(x) = x2 + 3x – 18?
F f(x) = (x - 6)(x – 3)
G f(x) = (x - 6)(x + 3)
H f(x) = (x + 6)(x + 3)
J f(x) = (x + 6)(x - 3)
What is the midpoint between the points (-2,-1) and (10,7)
4
Which ratio is proportional to 5:8 or 5/8
5
40/20
10/24
15/24
100/140
Step-by-step explanation:
Cancel 15/24 by 3 you'll get your solution.
hope it helps
A city receives 2 inches of snowfall every 3 hours. Write and graph a function that describes the relationship. How long does it take to receive 1 foot of snow? Use x for the independent variable and y for the dependent variable.
Answer:
To receive 1 foot of snow it will take about 18 hours.
Step-by-step explanation:
Given that a city receives 2 inches of snowfall every 3 hours, to write and graph a function that describes the relationship and determine how long does it take to receive 1 foot of snow, the following calculation must be performed:
1 foot = 12 inches
(12/2) x 3 = X
6 x 3 = X
18 = X
Thus, to receive 1 foot of snow it will take about 18 hours.
hey if ur good at algebra... plz help meh
ty
Im not for sure.. but I think it would be something like 3,9
Answer:
We rearrange the first equation into y = 8x - 42 and we substitute it in to get
-4x - 6 = 8x - 42 so 12x = 36 so
x = 3 and y = -18
hope this helps and brainliest please
Draw a conclusion is the statment below always, sometimes, or never true ? Bive at least two examples to support your reasoning. The lcm of two numbers is the product of the two number discuss your conclusion with a partner
Answer:
Sometimes
Step-by-step explanation:
Example 1:
Take two numbers as [tex]7,8[/tex]
LCM of [tex]7,8=7(8)=56[/tex]
In this case, the lcm of two numbers is equal to the product of the two numbers.
Example 2:
Take two numbers as [tex]6,3[/tex]
[tex]6=3(2)[/tex]
So,
LCM of [tex]6,3=3(2)=6[/tex]
In this case, the lcm of two numbers is not equal to the product of the two numbers.
Therefore,
Sometimes, the lcm of two numbers is equal to the product of the two numbers.
Write a paragraph explaining why consumer goods packaged in cube-shaped boxes would use less packaging material than rectangular boxes containing the same product volumes. Provide an example, including sketches of the boxes and their dimensions, to substantiate your explanation. Why aren’t more products in cube-shaped boxes?
Answer:
Students review how to determine the surface area and volume of a rectangular prism, that all dimensions are equal in cubes so the volume of cubes are the length of any side raised to the third power, or cubed. This prepares them for two associated activities. First, students find the volumes and surface areas of rectangular boxes such as cereal boxes and then figure out how to convert their boxes into a new, cubical boxes having the same volume as the original. As they construct the new, cube-shaped boxes from the original box material, students discover that the cubical box has less surface area than the original, and thus, a cube is a more efficient way to package items. Students consider why consumer goods are generally not packaged in cube-shaped boxes, even though this would require fewer materials and ultimately, less waste. Then, to display their findings, each student designs and constructs a mobile that contains a duplicate of his or her original box, the new cube-shaped box of the same volume, the scraps that are left over from the original box, and pertinent calculations of the volumes and surface areas involved.
Step-by-step explanation:
Thank you for your time have a good day!Are two congruent figures similar?Explain
Answer:
Ye cs they're both cong.
Step-by-step explanation:
Answer:
Which figures
Step-by-step explanation:
a real number between √13 and √14
Answer:
3.7
Step-by-step explanation:
Larry's math teacher did not want to announce her age. She told her students if
they could solve the riddle, it would reveal how old she was. Her riddle stated: "The
product of my age and five, then decreased by twenty and finally increased by my
age times negative three is fifty." How old was Larry's math teacher? Hint: Write the
equation first, then solve to find the missing part.
Answer:
age is 35
Step-by-step explanation:
5a - 20 + (-3a) = 50
2a - 20 = 50
2a = 70
a = 35
how much does c go up after the initial $2?? it’s so confusing.
Answer:
Its counting by 2 dollars every time so it would be at 8 dollars
Step-by-step explanation:
answer correctly for brainliest
Answer:
x=3
Step-by-step explanation:
When you substitute x = 3 to both equations, you get y = -4 for both so that is a solution
I need help with geometry
Answer:
Step-by-step explanation:
What is 1/2 to the power of 5??
Answer:
1/32
Step-by-step explanation:
If 3^2x+1 - 3^x+5, what is the value of x?
Answer:
3^(2x+1)
Step-by-step explanation: srry if am wrong and am probally wrong.
Mail order a mail order company has a 10% success rate. If it mails advertisements to 602 people, find the probability of getting less than 57 sales. Round z value calculations to 2 decimal places and final answer to at least 4 decimal points
Answer:
0.30854
Step-by-step explanation:
Given :
Sample size, n = 602
p = 10% = 0.1
q = 1 - p = 1 - 0.1 = 0.9
Using binomial approximation :
Mean, m = n * p = 602 * 0.1 = 60.2
Standard deviation, s = sqrt(npq) = sqrt(602*0.1*0.9) = 7.36
P(x < x - 0.5) = (x - m) / s
x = 57
P(x < 56.5) = (56.5 - 60.2) / 7.36
Z = - 3.7 / 7.36
Z = - 0.5027 = - 0.50
P(Z < - 0.50) = 0.30854 (Z probability calculator)
-3.5 + x7= -5.2
pls answer