Answer:
a) x^2 + y^2
b) 9-xy
Step-by-step explanation:
Here, we want to write the algebraic statements as expressions;
a) The sum of the squares of x and y
The square of x is x^2
The square of y is y^2
The sum of the squares is x^2 + y^2
ii) Product of x and y subtracted from 9
The product of x and y is x * y = xy
Subtracting these from 9, we have;
9-xy
A bicycle tyre has a diameter of 14 cm. John decides to cut the tube to see how long the rubber is.
a. What is John trying to find? _____________________________________________
b. Calculate the circumference of the tyre.
c. If John should place the tyre on the ground and fill the space inside with paint, how much space would be occupied by the paint?
Answer:
A:He is trying to find the diameter
B: 3.14*14=43.96
C: 3.14*14^2=615.44
Hope This Helps!!!
Can someone help me? It's urgent and thank you!
Answer:
x = -9, 3
Step-by-step explanation:
you cross multiply
Answer:
[tex]x=-9[/tex] or [tex]x=3[/tex]
Step-by-step explanation:
Cross multiply:
[tex]3/x+6=x/9\\\\\\(3) * (9)=x*(x+6)\\\\\\27=x^{2} +6x[/tex]
Subtract x^2 +6x from both sides:
[tex]27-(x^{2}+6x )=x^{2} +6x-(x^{2} +6x)\\\\\\-x^{2} -6x+27=0[/tex]
Factor left side of the equation:
[tex](-x+3)(x+9)=0[/tex]
Set factors equal to 0:
[tex]-x+3=0[/tex] or [tex]x+9=0[/tex]
Therefore, [tex]x=3[/tex] or [tex]x=-9[/tex]
hope this helps.....
What is the mean? If the answer is a decimal, round it to the nearest tenth.
-4 1 4 -1
4 -1 -2 -6 3-5
-8
Answer: if its decimal and it wants you to round to next place to the tenths place
Step-by-step explanation: if it means to look at the hundredth's place to find your answer if its bigger than five your second number will add up if its lower than five it stays the same
Can someone answer this plz
Answer:
[tex]A^{I}[/tex]= (7, -1)
Step-by-step explanation:
Rotation is a method of rigid transformation in which a point is moved about a reference point through a stated angle. The rotation could be clockwise or counterclockwise so as to produce the image of the initial object.
In the polar coordinate given, the coordinate of A is given as;
A = (3, 3)
On rotating point A about point C counterclockwise for [tex]270^{o}[/tex], an image [tex]A^{I}[/tex] would be produced.
But [tex]A^{I}[/tex] would have a coordinate;
[tex]A^{I}[/tex]= (7, -1)
The image of A produced is [tex]A^{I}[/tex] (7, -1).
SAT A bag contains 3 red marbles, 2 green
marbles, and 4 blue marbles. One marble is
randomly drawn and replaced. Then a second marble
is drawn. Find the probability of drawing three blue
marbles.
Answer:
[tex] \frac{1}{21} [/tex]
Step-by-step explanation:
refer to solution in picture
You are playing a game with your friend to see who can make the most baskets from the free-throw line. Each of you has 5 shots at the basket. How many ways are there for you to make exactly 4 shots?
A) 4
B) 5
C) 10
D) 6
Answer:
B) 5
Step-by-step explanation:
The given parameters are;
The number of shots at the basket = 5 shots
The number of ways to make exactly 4 shots is given by combination as follows;
The number of ways to shoot exactly 4 shots = ₅C₄ = 5!/(4!×(5 - 4)!) = 5
The number of ways to shoot exactly 4 shots = 5 ways
which statement is true about the figure?
Answer:
DEC and AEB are the same angles
Please please help me please please help
Answer:
D
Step-by-step explanation:
Total ribbon left is 28 1/3 - 10 2/3= 86/3-32/3=54/3=18
Larry runs a dog-walking service. He charges $5/h plus a flat fee of $6. One day, he earned $16. Determine which
equation represents this.
Answer:
5h+6=16
Step-by-step explanation:
He gets 6 dollars and for every hour he walks he gets 5 dollars so he must of walked dogs for 2 hours and plug it in you get your equation.
Answer:
5(2)+6=16
Step-by-step explanation:
That should be it! Contact me if you need to know why.
2.5kg of potatoes cost $1.40 work out the cost of 4.25 kg of potatoes
Answer:
Cost of 4.25 kilogram potato = $2.38 (Approx.)
Step-by-step explanation:
Given:
Cost of 2.5 kilogram potato = $1.40
Find:
Cost of 4.25 kilogram potato
Computation:
Cost potato = Amount of potato need[Price of y potato / Amount of y potato]
Cost of 4.25 kilogram potato = [4.25][1.40 / 2.5]
Cost of 4.25 kilogram potato = [4.25][0.56]
Cost of 4.25 kilogram potato = 2.38
Cost of 4.25 kilogram potato = $2.38 (Approx.)
in a school all students play either football ir volleyball 300 play football 250 play volleyball and 110 play both the game . draw a venn diagram to find the number of students who play football only. the number of students who play volleyball only. the total number of students of the school
Step-by-step explanation:
It will help you !!!!!!!!!!Answer:
my answer is 660
Step-by-step explanation:
300+250+110=660
Evaluate expressions-
If x=3 what is the value of 8x+23?
A.47
B.93
C.208
D.61
Explanation:
We replace x with 3 and use PEMDAS to evaluate
8*x+23
8*3+23
24+23
47
Answer:
[tex]47[/tex]
Step-by-step explanation:
[tex]8x + 23[/tex]
[tex]8(3) + 23[/tex]
[tex]24 + 23[/tex]
[tex]47[/tex]
Hope it is helpful...human right violation
Answer:
A human rights violation is the disallowance of the freedom of thought and movement to which all humans legally have a right.
Step-by-step explanation:
Name the marked angle in 2 different ways
Answer:
∠TSR ∠S
Hope this helps! :)
Is Mercury is a gas giant, and because it is hot, it is named after the mercury in a thermometer.
Please give real answers with explaination. I will follow + I will give brainliest. No Docs/No Files/No Links only answer with explaination.
Mercury is the smallest and fastest planet in the solar system. It is also the closest planet to the sun. It is named after the Roman messenger god Mercury, the fastest Roman god.
Find the solutions to 8x2 + 56x = 0. Check all that apply.
A. X = 8
B. x = 0
C. X = -7
D. X = 7
Answer:
B and C
Step-by-step explanation:
fjdjjsngbsnsjf x
will someone help me on this please i really need this
Answer:
2.24
Step-by-step explanation:
the total surface area=
(3+10+5+10+6)×(20) + (2×3×24) + (2×½×(14+10)×3)
= 680 + 144 + 72
= 896 ft²
the paint will be needed at least :
896/400 × 1 gallon = 2.24 gallons
6÷8 using long division
Given:
The expression is:
[tex]6\div 8[/tex]
To find:
The value of the given expression by using the long division method.
Solution:
We have,
[tex]6\div 8[/tex]
Here, dividend is 6 and divisor is 8.
Since 6<8, therefore we will use the decimal in dividend and quotient as shown below:
[tex]\underline{\quad 8\quad}|\overline{\quad 6.00\quad }|\underline{\quad 0.75\quad }[/tex]
[tex]\underline{\quad 56\quad }[/tex]
[tex]40[/tex] (After subtraction)
[tex]\underline{\quad 40\quad }[/tex]
[tex]\underline{\quad 0\quad }[/tex] (After subtraction)
Therefore, the value of the given expression is 0.75.
i need help with this asap !!
Answer:
x^2-2x-13
Step-by-step explanation:
f(x) = 2x-5
g(x) = x^2 -4x-8
f(x) +g(x) = 2x-5 + x^2 -4x-8
Combine like terms
= x^2+2x-4x-5-8
=x^2-2x-13
I need help
Solve for X when:2X=8
Answer:
x=4
Step-by-step explanation:
x=8/2 =4
this question is quite easy
The table shows ordered pairs of the function . What is the value of y when ?
the value of y is equal negative
Categories the graph as linear increasing, linear decreasing, exponential growth, or exponential decay
Answer:
Step-by-step explanation:
This graph is both linear and decreasing, as we move from left to right.
Solve the system by substitution.
— бу = x
x + y = -30
Step-by-step explanation:
-6y + y=-30
-5y = -30
y=6
x=-6 ×6= -36
I need somebody to help this due in 25 minutes
Answer:
line n
Step-by-step explanation:
Line n goes through points A and G on the diagram.
43%×64%÷3+86×18=what?
Answer:
1548.09173333
Answer:
43%×64%÷3+86×18=
1548.09173333
Step-by-step explanation:
Hope this answer helps you :)
Have a great day
Mark brainliest
force=1500 N pressure=6000 find the area contac
Answer:
[tex]Area = 0.25 \ m^2[/tex]
Step-by-step explanation:
Force = 1500N , Pressure = 6000
[tex]Pressure = \frac{Force}{Area }[/tex]
[tex]6000 = \frac{1500}{Area }[/tex]
[tex]6000 \times Area = 1500\\\\Area = \frac{1500}{6000} \\\\Area = \frac{1}{4} = 0.25 \ m^2[/tex]
Please help me solve my problem!!!
Answer:
The answer to this problem is True.
Help find x and angle BEC
Answer:
x = 32 and BEC = 43
Step-by-step explanation:
3X + 41 = 137
3X = 96
X = 32
FOR BEC:
137 + 137 = 274
360-274=86 ( ANGLES AROUND A POINT ADD UP TO 360)
86/2 = 43
BEC/AED = 43 ( VERTICALLY OPPOSITE ANGLES ARE EQUAL)
hope this helps good luck!
Find m
Please and thank you.
Answer:
43
Step-by-step explanation:
We have to find angle CXY
So,
YE/EX=DY/CX
Therefore XY//CD [Theorem]
Angle D =Angle Y [Corresponding Angles]
Angle E + Angle Y +Angle X=180
Angle X=180-(Angle E + Angle Y)
Angle X=180-(89+48)
Angle X=180-137
Angle X=43
Angle CXY=43 Degree
12 Rose and Haydn share £250 in the ratio 2:3
Rose gives all her share of the money to charity.
Haydn gives 42% of his share of the money to charity.
Rose gives more money to charity than Haydn gives to charity.
Work out how much more.
Answer:
Amount = £37
Step-by-step explanation:
Let Rose be represented by R.
Let Haydn be represented by H.
Given the following data;
Total amount = £250
Ratio of R:H = 2:3 = 2 + 3 = 5
To find how much Rose earned;
R = 2/5 * 250
R = 500/5
R = £100.
For Haydn;
H = 3/5 * 250
H = 750/5
H = £150
Next, we calculate the amount Haydn gave to charity;
Percent = 42% = 42/100 = 0.42
H = 0.42 * 150
H = £63
To find how much more Rose gave to charity than Haydn;
Amount = R - H
Amount = 100 - 63
Amount = £37