Answer:
222 fence posts
Step-by-step explanation:
Since the log is 20 m long, correct to the nearest metre and has to be cut into fence posts which must be 90 cm long, correct to the nearest 10 centimetres, there can be x fence posts 90 cm long.
So, we have x × 90 cm = 20 m
x × 0.9 m = 20 m
x = 20 m/0.9 m
x = 222.22
x ≅ 222 fence posts
So, the largest number of fence posts that can possibly be cut from the log is 222 fence posts.
how do you work out this equation?
solve simultaneous equations by substitution
x + y =3
5x + y = 15
Step-by-step explanation:
x + y = 3. => y = 3 - x
5x + y = 5x + (3 - x) = 15.
=> 4x + 3 = 15
=> 4x = 12, x = 3.
Therefore y = 3 - (3) = 0.
The solutions are x = 3 and y = 0.
Answer:
Step-by-step explanation:
x+y=3
5x+y = 15
I method:
y = 3 - x. substitute this in 2nd equation
5x + (3-x) = 15
5x + 3 - x = 15
4x = 12
x=3
y=0
II method:
subtracting 2nd equation and 1st equation we get
4x +0y = 12
x = 3
y = 0
Question down below.
Answer:
ok umm the answer is 5x=92
Step-by-step explanation:
Have a great day! :)
given that u is the midpoint of on and v is the midpoint of rn select all statements that are true
Answer:
6,9,15
It's a triple stack
Find the distance between C ( 2,-1) and Q(10,-7)
Please Help me
A 30
B 33
C 10
D -10
HELP HELP PLEASE ITS DUE at 8:00 ITS LIKE 7:29 HELPP
Correct me if I'm wrong but wouldn't even 15 be right could be a lot of things
Answer:
Any number above 14.3, example:15
Step-by-step explanation:
The question asks the sum of -14.3 and a number, (x-14.3) to be positive.
We can make it x-14.3>0
x>14.3
7. A cone has a volume of 942 cubic inches
and a height of 9 inches. What is the radius of
the cone?
Answer:
Step-by-step explanation:
V of a cone V=3.14* r^2*h/3
942=3.14*r^2*9/3
r^2=942/(3.14*3)=100
r=sqrt100=10
The radius of the cone when the volume of 942 cubic inches and a height of 9 inches should be 10.
Calculation of the radius of the cone;
Since there is a volume of 942 cubic inches and a height of 9 inches
We know that
Volume of a cone V=[tex]3.14* r^2*h/3[/tex]
So,
[tex]942=3.14*r^2*9/3\\\\r^2=942/(3.14*3)=100[/tex]
r =[tex]\sqrt 100[/tex]
=10
hence, The radius of the cone when the volume of 942 cubic inches and a height of 9 inches should be 10.
Learn more about volume here: https://brainly.com/question/14010084
I need help with this fast! Thanks!
What is the value of the expression? 9 3/4−2 1/5+1/2
_ -- > Ex: 9 1/7
Answer:
Hola no se ingles ¿Quieres ser amigas
Step-by-step explanation:
what type of function is represented in the table?
a. linear
b. quadratic
c. exponential
d. cubic
Answer:
B
Step-by-step explanation:
quadratfunction because it comprises of both X and Y
please help me !!!!!!
If you cant get this math riddle right, you're a pleb.
A small number of cards has been lost from a complete pack. If I deal among four people, three cards remain. If I deal among three people, two remain and if I deal among five people, two cards remain. How many cards are there?
Answer:
47 cards remain
Step-by-step explanation:
thank you
pls follow me.
Sergio runs 2 and 1/4 miles in 30 minutes. What is Sergio's speed in miles per hour ? Answer as a decimal.
Answer:
4.5 miles per hour
Step-by-step explanation:
2 1/4 x 2 = 4.5 (As decimal)
30 mins + 30 mins = 1 hour
1 hour = 4.5 miles per hour
Ann, Bob and Cath share £45 in the ratio 3: 2:4
Work out the amount each person gets. please help if you cann
Answer:
down below
Step-by-step explanation:
3:2:4=3+2+4=9
45/9=5
5 times 3=15
5 times 2=10
5 times 4=20
i hope i helped
please give me a brainliest!!<3
lmk lmk i need answer asap
Answer:
5+9=9+5
Step-by-step explanation:
Because ethier way it will be 14, but idl dont take my word yet...
Answer:
The answer is C
Step-by-step explanation:
21+21=42
math hard me need help
Answer:
$22.5 off
Step-by-step explanation:
What is the solution to the system of equations below?
y- x-3 and x = -10
0 (-10,-7)
0 (-10,-1)
0 (-7, -10)
0 (-1,-10)
Answer:
(-10,-7)
Step-by-step explanation:
the given equations: y=-3 and x=-10
we can substitute the x in the first equation as -10.
y=(2/5×-10)-3
simplify
y=(2/1*-2)-3
y=-4-3
y=-7
the y value is -7
we actually have the x value given as -10 (in the system)
So the answer is (-10,-7)
Hope this helps!
y + 5 = –2 (x - 1) help me find the slope intercept
y - 2 = - 4 (x + 3)
What is the value of 7 (x + 4) ^2 - 3x when x =2?
Giving brainliest
Answer:
vnfcjvfn dcjxfhhnvn vn
Step-by-step explanation:
Answer:
the value of 7x-y is -14.
Step-by-step explanation:
When x=2 and y=4,
To find the value of 7x - y when x =2, y = 4, this means when ever you see x, put 2 in replacement, y, put 4 respectively.
7x - y = 7(2 - 4)
14 - 28
= -14.
how to calculate the volume of a cylinder if the height is 9.25 cm and the base is 6.5 cm
Answer:
306.94 cm
Step-by-step explanation:
The formula for volume of a cylinder is pi×r^2×h. Im assuming that you mean that the base is 6.5 cm in diameter so in this case you would plug in the values and do pi×3.25^2×9.25 and get 306.94 cm
Find the distance between (1, 0) and (-1, -7) to the nearest hundredth.
Answer:
no
Step-by-step explanation:
no
Find the surface area of the rectangular prism.
6cm
3cm
2cm
Select the best answer from the choices provided.
A.36 cm2
B. 50 cm2
C. 72 cm2
D. 86 cm
Answer:
trust me it's
it's 72 cm2
hope this helps❤
whats 7(35+5) i need it for my sexth grade exam tommorow
Answer:
280
Good luck on your exam tomorrow! :-)
Step-by-step explanation:
2x + 9
Tomatoes
1
Corn
6x - 3
Turnip
Image by HISD Secondary Mathematics using MS WORD
Which expression represents the area of the vegetable garden in square yards?
8x2 + 54x + 27
12x2 - 27
8x2 + 60x - 27
12x2 + 48x - 27
Answer:
I think is 12x2 +48x-27 but I'm confused
Answer:
[tex]A=12x^2+48x-27[/tex]
Step-by-step explanation:
Area of a Rectangle
The image shows a rectangular vegetable garden with different crops.
The rectangle has a length of L=2x+9 yards and a width of W=6x-3 yards.
The area of a rectangle is:
A = WL
[tex]A=(2x+9)(6x-3)[/tex]
Operating:
[tex]A=2x(6x)-2x(3)+9(6x)-9(3)[/tex]
[tex]A=12x^2-6x+54x-27[/tex]
Simplifying:
[tex]\boxed{A=12x^2+48x-27}[/tex]
what is f (-2) if f (x) = 1/2x?
[tex]f(x) = \dfrac{1}{2x} \\~\\~\\f(-2) = \dfrac{1}{2\cdot(-2)} \\~\\~\\f(-2) = -\dfrac{1}{4} \\~\\~\\f(-2) = -0.25[/tex]
hiiii pls help i’ll give brainliest if you give me a correct answer ty!
Answer:
No
Step-by-step explanation:
0.025 + 0.17 does not equal 0.042.
Joey is building a doghouse. He measures the lengths of two sides and the hypotenuse to make sure the boards create a right triangle.
Which of the measurements below could be used to create the right triangle?
5 in, 7 in, 12 in
8 in, 12 in 14 in
5 in, 9 in, 11 in
6 in, 8 in, 10 in
pleasee help mee
Answer: 6in, 8in, 10in
6 squared + 8 squared equals to the radical of 100, which equals to 10 because 10 squared is.. 100
The measurements that can be used to build a right-angled triangle are
[tex]6 in, 8 in, 10 in[/tex]
The measurements that can be used to build a right-angled triangle must form a Pythagorean triple. A Pythagorean triple is a set of three numbers [tex]\{x,y,z\}[/tex] that satisfy the Pythagorean relationship
[tex]x^2+y^2=z^2[/tex]
The measurements [tex]\{5 in, 7 in, 12 in\}[/tex] do not form a triple since
[tex]5^2+7^2=74\ne12^2[/tex]
The measurements [tex]\{8 in, 12 in, 14 in\}[/tex] do not form a triple since
[tex]8^2+12^2=208\ne14^2[/tex]
The measurements [tex]\{5 in, 9 in, 11 in\}[/tex] do not form a triple since
[tex]5^2+9^2=106\ne11^2[/tex]
The measurements [tex]\{6 in, 8 in, 10 in\}[/tex] form a triple since
[tex]6^2+8^2=100=10^2[/tex]
So, the last set of measurements [tex]6 in, 8 in, 10 in[/tex] can be used to build a right-angled triangle
Learn more about Pythagorean triples here: https://brainly.com/question/16314667
Find the surface area of the figure below. Each cube measures 1 inch.
Select the best answer from the choices provided.
OA. 52 in2
OB. 33 in?
OC. 24 in?
OD. 58 in2
Which of the following shapes are quadrilaterals ? Please choose 2 correct answers !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!
Answer:
Hello there:] How are you! I think that both A and C are quadrilaterals.
Step-by-step explanation:
As you might know, quadrilaterals have 4 sides because of the name quad. B has 5 sides which would make it a pentagon. Im not really sure about d since there is not really any angles. I hope this helps! :]
Describe how probability and odds are related.
Answer: The probability that an event will occur is the fraction of times you expect to see that event in many trials. Probabilities always range between 0 and 1. The odds are defined as the probability that the event will occur divided by the probability that the event will not occur.
The graph of the relation T is shown below.
4
Give the domain and range of T.
Write your answers using set notation.
Answer:
The sets of the domain and the range of T are, respectively:
[tex]Dom \{T\} =\{-3,0,3\}[/tex]
[tex]Ran\{T\} = \{-4.-3,2,3\}[/tex]
Step-by-step explanation:
The values of the relation T that belongs to the domains correspond with the values on the x-axis and associated with the given points, whereas the range corresponds with the respective values of the y-axis. Let [tex]T = \{(x,y)|(-3,3),(3,2),(0,-3),(3,-4)\}[/tex]
The sets of the domain and the range of T are, respectively:
[tex]Dom \{T\} =\{-3,0,3\}[/tex]
[tex]Ran\{T\} = \{-4.-3,2,3\}[/tex]
Determine if the sequence below is arithmetic or geometric and determine the
common difference / ratio in simplest form.
19, 10, 1, ...
Answer:
arithmetic sequence
Step-by-step explanation:
There is a common difference d between consecutive terms, that is
d = 10 - 19 = 1 - 10 = - 9
This means the sequence is arithmetic