Can someone please find the areas of these shapes? I've been having a hard time with trying to figure them out.
Answers
Second : 45
3rd : 12
Related Questions
Find the scale factor and ratio of perimeters for a pair of similar octagons with areas 16 ft' and 49 ft The scale factor is (Simplify your answer.) The ratio of perimeters is . (Simplify your answer.) Enter your answer in each of the answer boxes.
Answers
Answer:
67ft
Step-by-step explanation:
Which of the following equations is the result after the first step in solving 3x + 6 = 12?
x + 6 = 4
x = 3
3x = 18
3x = 6
Answers
Answer:
3x =6
Step-by-step explanation:
3x+6 =12
Subtract 6 from each side
3x+6-6 = 12-6
3x =6 pls mark branilest if that helped
According to a survey, about 19% of all Americans are without health insurance. Assume that this estimate is reasonably accurate. Suppose that you select a random sample of 46 Americans. (a) Calculate the expected number of Americans without health insurance in the sample. Answer: (Keep at least four decimal places.) (b) Calculate the standard deviation of the number of Americans without health insurance in the sample. Answer: (Keep at least four decimal places.)
Answers
Answer:
a) 8.74
b) 2.6607
Step-by-step explanation:
For each American, there are only two possible outcomes. Either they are without health insurance, or they are not. In the sample, each person is independent of any other person, which means that we use the binomial probability distribution to solve this question.
Binomial probability distribution
Probability of exactly x sucesses on n repeated trials, with p probability.
Can be approximated to a normal distribution, using the expected value and the standard deviation.
The expected value of the binomial distribution is:
[tex]E(X) = np[/tex]
The standard deviation of the binomial distribution is:
[tex]\sqrt{V(X)} = \sqrt{np(1-p)}[/tex]
According to a survey, about 19% of all Americans are without health insurance.
This means that [tex]p = 0.19[/tex]
Suppose that you select a random sample of 46 Americans.
This means that [tex]n = 46[/tex]
(a) Calculate the expected number of Americans without health insurance in the sample.
[tex]E(X) = np = 46*0.19 = 8.74[/tex]
(b) Calculate the standard deviation of the number of Americans without health insurance in the sample.
[tex]\sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{46*0.19*0.81} = 2.6607[/tex]
absolute value of -93
Answers
absolute value of -93 will be 93
Answer:
93
Step-by-step explanation:
The absolute value is just how far from away from zero a number is.
Salim buys boxes of crackers that each has the same cost x. He represents the cost of 3 boxes of
cheese crackers, 4 boxes of poppy seed crackers, and 6 boxes of plain crackers using the
expression 3x + 4x + 6x. What equivalent expression can represent the cost?
Answers
Answer:
13x
Step-by-step explanation:
You add them all up since they're like terms and all have x
A real estate agent has 17 properties that she shows. She feels that there is a 50% chance of selling any one property during a week. The chance of selling any one property is independent of selling another property. Compute the probability of selling less than 3 properties in one week. Round your answer to four decimal places.
Answers
Answer:
0.0011 = 0.11% probability of selling less than 3 properties in one week.
Step-by-step explanation:
For each property, there are only two possible outcomes. Either they are sold, or they are not. The chance of selling any one property is independent of selling another property. This means that the binomial probability distribution is used to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
And p is the probability of X happening.
A real estate agent has 17 properties that she shows.
This means that [tex]n = 17[/tex]
She feels that there is a 50% chance of selling any one property during a week.
This means that [tex]p = 0.5[/tex]
Compute the probability of selling less than 3 properties in one week.
This is
[tex]P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2)[/tex]
In which
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 0) = C_{17,0}.(0.5)^{0}.(0.5)^{17} \approx 0[/tex]
[tex]P(X = 1) = C_{17,1}.(0.5)^{1}.(0.5)^{16} = 0.0001[/tex]
[tex]P(X = 2) = C_{17,2}.(0.5)^{2}.(0.5)^{15} = 0.0010[/tex]
[tex]P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2) = 0 + 0.0001 + 0.0010 = 0.0011[/tex]
0.0011 = 0.11% probability of selling less than 3 properties in one week.
Given that n is an integer, prove that 6 is a factor ofn3+ 5n
Answers
Answer:
n3+5n=6
taking common as n
n(5+3)=6
n8=6
pls help with this question i cant solve it
Answers
The tree is 6 feet tall
Just 9 it’s just too much for me and please don’t mind the pencil marks
Answers
9514 1404 393
Answer:
1,493,582.81 ft²
Step-by-step explanation:
The area of one triangular face is found using the formula for the area of a triangle:
A = 1/2bh
A = 1/2(755.9 ft)(610 ft) = 230,549.5 ft²
The base area is the area of a square 755.9 ft on a side:
A = s²
A = (755.9 ft)² = 571,384.81 ft²
Then the total surface area of the pyramid is the sum of the the areas of four (4) triangular faces and the area of the base.
SA = 4(230,549.5 ft²) +571,384.81 ft²
SA = 1,493,582.81 ft²
_____
Additional comment
That is about 34.3 acres.
Pls Hurry its timed
How do the number line graphs of the solutions sets of Negative 23 greater-than x and x greater-than-or-equal-to negative 23 differ?
A One graph uses an open circle, but the other graph uses a closed circle. Also, the rays use arrows that point in opposite directions, but they have the same endpoint.
B They use arrows that point in opposite directions, the rays have different endpoints, and both graphs use open circles.
C One graph uses an open circle, but the other graph uses a closed circle. Also, the rays have different endpoints, but they use arrows that point in the same direction.
D They use arrows that point in opposite directions, the rays have different endpoints, and both graphs use closed circles.
Answers
For his car Jason paid 91.48 per speacker for 3 speackers and 92.55 per tire for 5 tires with 8 100 bills . How much did Jason get in change ?
Answers
Answer:
1 speaker is $91.48
3 speakers = $91.48 × 3
= $274.44
1 tire is 9$2.55
5 tires = $92.55 × 5
= $462.75
8, 100 bills = $800
The cost for the 3 speakers and 5 tires = $274.44 + $462.75
= $737.19
Therefore, the change that Jason got was = $800 - $737.19
= $62.81
8^10 x 8^4 simplified write your answer as a power
Answers
8^10 x 8^4= 8^14
Answer:
8^14
Step-by-step explanation:
8^10x8^4=8^(10+4)=8^14
Which side length is labeled correctly?
A 3cm
B 4cm
C 5cm
D None are correctly labeled
Answers
Answer:
Step-by-step explanation:
3 cm
A man has 1/2 of a kilogram of rice. He shares it equally amongst 6 people. How many kilograms does each person get? Input your answer as a fraction of a kilogram.
Answers
Answer:
1/12
Step-by-step explanation:
The graph of y=f(x) is shown below. According to the graph what is f(3)?
Answers
5. The area of the greatest square that is cut from a rectangle of sides
7cm and 4cm is
(1)
49sq.cm (ii) 28sq.cm (iii) 16sq.cm (iv) 9sq.em
Answers
Answer:
16 cm²
Step-by-step explanation:
The dimension of rectangle = 7cm by 4 cm
The Area of the greatest square that can be cut from the rectangle :
The dimension has to be the Same to form a square :
Hence, the greatest width = 4cm
Therefore, taking the length also as 4cm
Area of square = side length²
Greatest area of square that can be cut = 4² = 16cm²
PLS ANSWER ASAP THANKS
Answers
Answer:
x=54°
Step-by-step explanation:
x+36°=90°
x=90°-36°
x=54°
HOPE IT HELPS U
HAVE A GREAT DAY
Determine The Missing Number In The equation
1+12= +2
PLEASE HURRY!!!!
Answers
2/5 times 20 can you please help
Answers
Answer:
8
Step-by-step explanation:
The answer is 8 multiple
Hope it helps
What are the coordinates of point of intersection of y=x+3 and y=3x-3?
Answers
Answer:
Correct option is
D
(0, 0)
Form the graph, we can see that solution is (0,0).
or
The point of intersection of lines y = 3x and x = 3y must satisfies both the equation.
From the options (0,0) satisfies both the equations, hence the point of intersection of given lines is at origin i.e. (0,0).
Answer:
Step-by-step explanation:
At the point of intersection, x+3 = 3x-3
6=2x
x = 3
y = x+3 = 6
Find y if the line through (5, 2) and (7, y) has a slope of 4.
Y= ___
Answers
(y-2):(7-5)=4
y-2=4(7-5)
y-2=28-20
y=8+2
y=10
HHHEEELLLPPPPP MMMMMMEEEEEE!!!!!!
Which is the graph of the function g(x)=−x^2−4x−1?
Answers
Answer:
its a, the first one
Step-by-step explanation:
i graphed it have a good day (:
In ΔEFG, the measure of ∠G=90°, the measure of ∠E=6°, and GE = 71 feet. Find the length of EF to the nearest tenth of a foot.
Answers
Answer:
71.4
Step-by-step explanation:
cos 6 = 71 / x = 71.4
Solve for x. 4(3x - 5) = 7(2x + 3).
Answers
Answer:
x = -20.5
Step-by-step explanation:
Simplifying
4(3x + -5) = 7(2x + 3)
Reorder the terms:
4(-5 + 3x) = 7(2x + 3)
(-5 * 4 + 3x * 4) = 7(2x + 3)
(-20 + 12x) = 7(2x + 3)
Reorder the terms:
-20 + 12x = 7(3 + 2x)
-20 + 12x = (3 * 7 + 2x * 7)
-20 + 12x = (21 + 14x)
Solving
-20 + 12x = 21 + 14x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-14x' to each side of the equation.
-20 + 12x + -14x = 21 + 14x + -14x
Combine like terms: 12x + -14x = -2x
-20 + -2x = 21 + 14x + -14x
Combine like terms: 14x + -14x = 0
-20 + -2x = 21 + 0
-20 + -2x = 21
Add '20' to each side of the equation.
-20 + 20 + -2x = 21 + 20
Combine like terms: -20 + 20 = 0
0 + -2x = 21 + 20
-2x = 21 + 20
Combine like terms: 21 + 20 = 41
-2x = 41
Divide each side by '-2'.
x = -20.5
One half of an apple pie is left for
5 family members to share equally.
What fraction of the original pie will
each member get?
Answers
Answer: It will be 2/10
Step-by-step explanation:because if you divide the half part that you have into five and the other one two you will have 10 pieces that divided into 5 members will be 2
Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 76 people in the 18-21 age bracket and finds that 65 of them respond and 11 refuse to respond. When 281 people in the 22-29 age bracket are contacted, 263 respond and 18 refuse to respond. Assume that 1 of the 357 people is randomly selected. Find the probability of getting someone in the 22-29 age bracket or someone who agreed to respond.
Answers
Answer:
0.9692 = 96.92% probability of getting someone in the 22-29 age bracket or someone who agreed to respond.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
Find the probability of getting someone in the 22-29 age bracket or someone who agreed to respond.
357 people.
281 in the 22-29 age bracket + 65 in the 18-21 that agree to respond. So
[tex]p = \frac{281+65}{357} = 0.9692[/tex]
0.9692 = 96.92% probability of getting someone in the 22-29 age bracket or someone who agreed to respond.
Mr. Jones is shopping for new appliances at a store.
All appliances are on sale for 10% off.
• Sales tax is 7%.
Which expression could Mr. Jones use to calculate the total cost of any
appliance, x?
HINT: Find the cost of the item if the original price is $100. Then Let
X=100 and see which choice will give you the correct price.
Answers
mr. John is shopping for new Apple eyes at a store all lights are on sale for 10% off sales tax is 7% which expression could mr. Jones use to calculate the total cost any wise X fun cost of the item the original price is $100 equal 100 and see what toys will give you the correct price
Distribute: -8(3f - 9)
Answers
Step-by-step explanation:
[tex] - 8(3f - 9) = [/tex]
[tex] - 24f + 72[/tex]
f(x)=1/4x-2 graph the function and the inverse
Answers
Answer:
Graph is below
Inverse: y=x/4 -2
y=x/4 -2
x=y/4 -2
x=y/4 -2 for y
Answer: y=4x+8
Step-by-step explanation:
Identify each part in the expression below. will give brainliest
Answers
Answer:
smalls
Step-by-step explanation:
