Answer: -2.2
Step-by-step explanation:
the mean of the set of numbers is the sum divided by the number of terms
The given lengths are two sides of a right triangle. All three side lengths of the triangle are integers, and together they form a Pythagorean triple. Find the length of the third side, then indicate whether it is a leg or a hypotenuse.
75, 85
A.
40, leg
B.
78, leg
C.
81, leg
D.
113, hypotenuse
Answer:
A.
Step-by-step explanation:
75^2=5625
85^2=7225
7225-5625=1600
[tex]\sqrt{1600}[/tex]=40
What is the surface area of the rectangular pyramid below?
A rectangular pyramid. The rectangular base has a length of 4.8 meters and height of 3.8 meters. 2 triangular sides have a base of 4.8 meters and height of 2.6 meters. 2 triangular sides have a base of 3.8 meters and height of 2.9 meters.
29.99 m2
31.04 m2
41.74 m2
65.24 m2
Answer:
B 31.04
Step-by-step explanation:
On graph paper, draw diagrams of a+a+a+a and 4a when a is 1, 2, and 3. What do you notice?
When the value of a will be 2 and 3 from 1, The square formed will be dilated by a scale factor of 2 and 3.
What are transformations?Two-dimensional figures can be transformed mathematically in order to travel about a plane or coordinate system.
Dilation: The preimage is scaled up or down to create the image.
Reflection: The picture is a preimage that has been reversed.
Rotation: Around a given point, the preimage is rotated to create the final image.
Translation: The image is translated and moved a fixed amount from the preimage.
We know, A square has side lengths that are equal to each other.
Given, We draw a diagram of a + a + a + a, This will form a square.
Now, When the values of a will be 1 we will have a square with side
lengths 1.
Now, When a = 2 and a = 3 the square will be dilated by a scale factor of 2 and 3.
learn more about dilation here :
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Bananas cost $0.65 per pound. What equation is used to find C, the total cost of p pounds of bananas?
Answer:
C = 0.65p
Step-by-step explanation:
plz marke me brainliest
can some one help me im in an prodigy boss battle and need help on this last question and pls don't guess
Answer:
1039
Step-by-step explanation:
Elena plays the piano for 30 minutes each practice day.
The total number of minutes p that Elena practiced last week is a function of n, the number of practice days.
What is the domain for this function?
What is the range of this function?
Answer:
Step-by-step explanation:
f(n)=30n
domain all real numbers
range all real numbers
I think.
Domain is {0, 1, 2, 3, ...} and range is {0, 30, 60, 90, ...} for function p=30n.
What is a function?A relation is a function if it has only One y-value for each x-value.
The function that relates the total number of minutes practiced, p, to the number of practice days, n, is given by:
p = 30n
where 30 is the number of minutes Elena practices each day.
Since we cannot have negative practice days, the domain of the function is the set of non-negative integers:
Domain: {0, 1, 2, 3, ...}
The range of this function is the set of all possible values of p that can be obtained by plugging in values of n from the domain.
In this case, since the function only outputs non-negative values, the range is the set of non-negative integers:
Range: {0, 30, 60, 90, ...}
Hence, Domain is {0, 1, 2, 3, ...} and range is {0, 30, 60, 90, ...} for function p=30n.
To learn more on Functions click:
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Help plz
Write an inequality for this situation.
There are more than 38 chickens in the chicken house.
A. number of chickens > 38
B. number of chickens < 38
C. number of chickens [tex]\leq[/tex] 38
D. number of chickens [tex]\geq[/tex] 38
(14 points) can someone please help me do these two problems asap?
Answer:
which?
Step-by-step explanation:
there isn't any problem here shown
what is 6 divided by 31, 3 divided by 18. 4 divided by 75. 9 divided by 37 and 8 divided by 69. i need whole explainations for all of them!
Carly has already written 35 pages of a novel. She plans to write 12 additional pages per month until she is finished. Write a linear equation in slope-intercept form to represent the scenario. Use the variable x to represent the number of months and y to represent the total number of pages.
Solve the linear equation above to find the total number of pages written in 5 months.
Please explain :)
Answer:
12x+35=y
Step-by-step explanation:
Wyatt catches 22 fish.
look at the graph, what is the probability that Wyatt will catch a shoal bass?
A square rug has an inner square in the center. The side length of the inner square is x inches and the width of the outer region is 2 in. What is the area of the outer part of the rug?
Answer:
so Area of Outer part = 8x + 16 square inches
Step-by-step explanation:
2 squares.
inner square dimension is x inches by x inches.
width of outer region= 2inches.
We want the area of the border around the inner square.
so
Area of border = B = Area of Large - Area of Inner
B = (x+4)^2 - x^2
B = x^2 + 8x + 16 - x^2
B = 8x + 16 square inches
so Area of Outer part = 8x + 16 square inches
PLs help...................
Please help to solve this question, and provide the formal proof. Very much appreciated, and have a great day!
9514 1404 393
Answer:
NB = b
NC = c
Step-by-step explanation:
A "quick and dirty" proof could be this:
M is the midpoint of AN; M is the midpoint of BC . . . . givenABNC is a parallelogram . . . . diagonals AN and BC have the same midpoint (M)*NB = AC = b; NC = AB = c . . . . opposite sides of a parallelogram are congruent.__
More formally, we might prove it like this:
MC = MB . . . . definition of medianMA = MN, AC = b, AB = c . . . . given∠CMA ≅ ∠BMN . . . . vertical angles are congruentΔCMA ≅ ΔBMN . . . . SAS congruence postulateAC ≅ NB . . . . CPCTCNB = b . . . . substitution property of equality/congruence∠CMN ≅ ∠ BMA . . . . vertical angles are congruentΔCMN ≅ ΔBMA . . . . SAS congruence postulateAB ≅ NC . . . . CPCTCNC = c . . . . substitution property of equality_____
* The proof is "dirty" only in that the theorem "if the midpoints of the diagonals of a quadrilateral are coincident, then that quadrilateral is a parallelogram" is not one usually available to cite in proofs. The "more formal" proof here essentially proves that the quadrilateral is a parallelogram.
Can someone plz help me with this one problem plzzzzz!!!!
...heh....I'm not that good at math
Answer:
2n+16
Step-by-step explanation:
8x2 = 16x1=16
Answer:
8
Step-by-step explanation:
2(n +8) distribute the 2
2 x n= 2n
2 x 8= 16
2n + 16 divide 2 on both sides
2n/2 cancels out the 2
16/2=8
n=8
HELP !! 30+ POINTS !! For the following right triangle, find the side length x. 7 24
Answer:
25
Step-by-step explanation:
(leg1)squared +(leg2)squared =(hypotenuse)squared
The radius of a circle is 6.5 inches. Find the circumference of the circle. Use pi as 3.14. Explain your steps.
What is the equation of the line
A.Cannot be determined
B. y=2x+2
C y= -x+2
D. Y= 2x-2
Answer:
c
Step-by-step explanation:
ive helped middle schoolers with this
Compare the investment below to an investment of the same principal at the same rate compounded annually. principal: $3000, annual interest: 7%, interest periods: 6 , number of years: 15
Answer:
160,000 i think
Step-by-step explanation:
I do not understand this question, any help would be appreciated :)
Answer:
the answer is n + 8 × 2
Step-by-step explanation:
hope this helps
Answer:
2(n + 8)
Step-by-step explanation:
From the question we know that what he does is basically he takes the number n, and adds 8 to it, and then multiplies the resulting sum by 2. so we can write that down as...
(n + 8) x 2 = 2(n + 8) = 2n + 16
Can you please help me on this ive been on this forever
Answer:
∠d , ∠f
Step-by-step explanation:
triangle ABC is similar to triangle DEF
∠A is same as angle ∠D as it is the opposite to it
∠c is same as ∠F as it is the opposite to it
What is the volume of the prism
Answer: it may be 85 but i didnt get anything else
Answer:
270 in^3
Step-by-step explanation:
A hotel has a total of 172 rooms. About 58% of the hotel rooms have 2 queen beds in each room and the rest of the rooms have 1 king bed. How many rooms have queen beds?
Answer:
99.76 = 100
Step-by-step explanation:
Answer:
Queen rooms: 99.76 but since it is a real world problem round it to the nearest tenth
king rooms: 72
Step-by-step explanation:
172 x 58% or 172 x 0.58= 99.67.
rounded = 100.00
172 - 100 = 72
100= queen rooms
72= king rooms
How many terms are in the expression 3x + 9? What are they?
Answer: numbers
Step-by-step explanation:
On Monday, a museum had 150 visitors. On Tuesday it had had 260 visitors. Estimate the percent change in the number of visitors to the museum.
About how many people would have to visit the museum on Wednesday to have the same percent change from Tuesday to Wednesday as from Monday to Tuesday? Explain your answer. help now
IF YOU DONT KNOW IT DONT REPLY.
Answer:
110
Step-by-step explanation:
Answer:
About 73%
110 more people came next day cuz 260-150=110
The amount added over the first day with give the changed percentage
0.733333333 or about 73%
Step-by-step explanation:
How do you solve a y=mx+b equation if x is unkown?
example -
y = 1.29x+2
How do I solve that? Please make sure to explain :) thanks!
Answer
Y= 2 x= -0.645
Step-by-step explanation:
you basically plug 0 into x and y
y=1.29(0)+ 2
y=2
0=1.29x+ 2
Answer:
Okay so "y = mx+b is a linear equation that represents a line on a graph; m represents the slope of the line and b is the y-intercept (The y-intercept of this line is the value of y at the point where the line crosses the y axis.)
In y = 1.29x+2, 1.29 is equal to m, so that is your slope.
The 2 is equal to the b so your y-intercept is 2.
Here's a graph to better understand it :)
A worker in a factory checks every 100th car part as it moves past her on an assembly line. Identify the sampling method.
Can someone plzzz help me with this one problem!
Answer:
2?
Step-by-step explanation:
i think its 2 because 1 is an odd number and it goes 1,1 ( two odd numbers) then __ 3,5 ( two more odd numbers then 8,13,21( even number then two more odd numbers) the 34( even number). i'm thinking the pattern is odd, odd, even, odd, odd, even, odd odd, even.
Order of Operation.
A certain Small Factory employs 98 workers. of these 10 received, a wage of $350 per day, and the rest receive $255 per day. To the management, a week is equal to 6 working days. How much does the factory payout each day? How much does the factory payout in a week?
Answer:
25940 per day
155640 per week
Step-by-step explanation: