Answer:
B. ( –3, –4)
C. ( 4, 17 )
Step-by-step explanation:
Function: y = 3x + 5
Using method of elimination
A. (2, –1)
x = 2, y = -1
-1 = 3 (2) + 5
-1 ≠ 11
This option is incorrect!
B. ( –3, –4)
x = -3, y = -4
-4 = 3 (-3) + 5
-4 = - 9 + 5
-4 = -4
This option is correct!
C. ( 4, 17 )
x = 4, y = 17
17 = 3 (4) + 5
17 = 12 + 5
17 = 17
This option is correct!
D. ( 3, 8 )
x = 3, y = 8
8 = 3 (3) + 5
8 = 9 + 5
8 = 14
This option is incorrect!
OK SO I PUT IT AS 117 DEGREES BUT IM NOT SURE IF ITS RIGHT SO CAN SOMEONE PLEASE CONFIRM FOR ME BEFORE I SUBMIT?
i need helllllllllllllllllllllllllllllllllllllllllllp
11) Help pls I have the answer I just need to show the work.
True or False. To find the missing side length in the diagram, use the Pythagorean Theorem.
Answer: A
SET of 3! Please help
Answer:
1. 24/40, 32/40, 24/32 (This is in order from top to bottom)
2. 21.1
3. 4.1
Step-by-step explanation:
1. Here, we only have to focus on Angle X.
Let's label in the sides:
Opposite = YZ = 24
Adjacent = XY = 32
Hypotenuse = XZ = 40
SOHCAHTOA simply means: You can memorise this through the acrostic poem of - Slap On Head Causes A Headache Take One Aspirin, but I remember it by Suck A Toe because that's what it sounds like.
Sin(x) = Opposite/Hypotenuse
Cos(x) = Adjacent/Hypotenuse
Tan(x) = Opposite/Adjacent
Sin(X) = 24/40
Cos(X) = 32/40
Tan(X) = 24/32
The question only asks to give the ratios by using / for a fraction, so we don't simplify it.
2. We are given the angle of 64°, the opposite length 19 and we have to work out x, which is the hypotenuse. We can use the sin function as we have our opposite length and we have to work out the hypotenuse.
Sin(64) = 19/x
xSin(64) = 19
x = 19/Sin(64)
x = 21.13943687
x = 21.1
3. We are given the angle of 70°, the hypotenuse 12 and we have to work out x, which is the adjacent side. We can use the cos function as we have to work out the adjacent side and we have our hypotenuse given to us.
Cos(70) = x/12
12Cos(70) = x All we have to do here is multiply by 12!
x = 4.10424172
x = 4.1
Question 83 pts
Given that 2 Al + 6 HCl → 2 AlCl3 + 3H2
UR ON TIMER GO FASTtt How many moles of hydrogen are produced if we start from 2.2 mol Al and 4.2 mol HCl?
2.1
mol H2
How many moles of excess reactant are left over?
Answer:
Ummm I dont know what subject it is so i will guess 2.3?
Step-by-step explanation:
I'm Sorry im really useless
PLEASE HELP ME PLEASEEEEE
Answer:
56.52 units³
Step-by-step explanation:
[tex]v = \pi {r}^{2}h[/tex]
r = 3 units ; h (height) = 2
V = 3.14 × 3² × 2
= 3.14 × 9 × 2
= 56.52 units³
WILL MARK BRAINLIEST!!!!!!!!!
what is 5/1 as a whole number
Answer:
5
Step-by-step explanation:
5÷1
i m not sure but i like its ans
Find the most common factor of 120 and 300
Answer and Step-by-step explanation:
The most common (greatest) factor of 120 and 300 is 60.
60 goes into both of them, and it is the greatest number in there list of factors that would go into both of these numbers.
#teamtrees #WAP (Water And Plant)
A woman is four times older than her daughter,eight years later their age bracket would be 74 and 18 respectively.What is their present ages
Answer:
Step-by-step explanation:
Find the volume of a cylinder with a radius of 3cm and a height of 7 cm.
Answer:
The volume of the cylinder ≅ 197.82[tex]cm^{2}[/tex]
Step-by-step explanation:
The volume of a cylinder is equal to the area of the base times the height. We know the radius, therefore we can find the area of the base. The formula for the volume of the cylinder is as follows:
V = π[tex]r^{2}[/tex][tex]h[/tex]
(now substitute the values of "r" and "h", and get...)
V = π[tex]r^{2}[/tex][tex]h[/tex]
[tex]V = (3^{2} )(7)[/tex] x π
V = (9)(7)π
V = 63π
V ≅ 197.82[tex]cm^{2}[/tex]
What is the value of the expression below?
256^1/4
A. 16
B. 8
C. 4
D. 64
Answer:
C
Step-by-step explanation:
256^1/4=4
So C is the right answer
Hope this helps :D
HELLP PLZ I WILL MARK BRIANLIEST PLZZ ASAP
The table shows the ratio between the number of books ordered and their cost: Number of Books Cost (dollars) 7 14 8 16 9 18 Find equivalent ratios when the number of books ordered is 1, 2, and 3. Write them as ordered pairs in the form (x-coordina
Answer:
(1,2)
(2,4)
(3,6)
What will be the coordinates of the image of point b?
Answer:
your answer will be D). (6,9)
Step-by-step explanation:
hope it helps bye!!
Graph this: y = 2sIn(x) - 3
Insert picture of graph
Answer:
We have the function:
f(x) = 2*sin(x) - 3
To graph this type of functions is useful to understand the parts of the function.
A general one is written as:
g(x) = A*sin(w*x + p) + M
where:
A is the amplitude
w is the angular frequency.
p is the phase
M is the midline.
Then in this case we have an amplitude of 2, an angular frequency of 1, a phase of 0 radians and the midline y = -3
Now we can evaluate the function in different points and (knowing how a sine function behaves) connect them, the graph will look something like this:
Find x and y in the given figure
Answer:
x= 70°, y=40°
Step-by-step explanation:
2x=140
x= 70
y= 180-140= 40
140 + y = 180
y = 180 - 140
y = 40
2x + 40 = 180 (Angle Sum Property)
2x = 180 - 40
2x = 140
x = 140/2
x = 70
X = 70
Y = 40
Complementary angles are two angles whose
measures add to 90°. The ratio of the measures of
two complementary angles is 7:11. What are the
measures of the angles?
Answer:
let the two complementary angles be x and 90-x
x= 7t (say)
90-x= 11t
x+90-x=90= 7t+11t=18t
90=18t
t=90/18= 10/2= 5
so x= 7×5=35 degrees
and 90-×=90-35=55 degrees
Answer:
Step-by-step explanation:
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x= 7t (say)
90-x= 11t
x+90-x=90= 7t+11t=18t
90=18t
t=90/18= 10/2= 5
so x= 7×5=35 degrees
and 90-×=90-35=55 degrees
13. Writing to Explain Explain how you would convert a
measurement given in ounces into pints.
Answer:
you divide the number of ounces by the number of pints
Step-by-step explanation:
it 1 print is = to 2 cups,then 5 prints would = ____ cups
Answer:
5 pints = 10 cups
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
5 * 2 = 10
PLEASE HELP ASAP!!! will mark brainliest
dont answer if u dont know and no links
Answer:
9 sq un
Step-by-step explanation:
Solve the algebraic inequality. The product of -3 and a number is at least -24.
Answer:
The first answer
Step-by-step explanation:
*PLEASE ANSWER!! I DONT GET IT!!*
What would the monthly loan payment be for a car that costs $25,000 if your loan is for 5 years at a rate of 8% per year?
a.) $506.91
b.) $600.56
c.) $1,056.91
Answer:
506.91
Step-by-step explanation:
Either that or it is D
louise bought 80 metres of fencing to make an enclosure for her pet dog .tommy if louise expects a rectangular enclosure what is the largest area it can have ? explain your answer
Answer:
400 m^2.
Step-by-step explanation:
The largest area is obtained where the enclosure is a square.
I think that's the right answer because a square is a special form of a rectangle.
So the square would be 20 * 20 = 400 m^2.
Proof:
Let the sides of the rectangle be x and y m long
The area A = xy.
Also the perimeter 2x + 2y = 80
x + y = 40
y = 40 - x.
So substituting for y in A = xy:-
A = x(40 - x)
A = 40x - x^2
For maximum value of A we find the derivative and equate it to 0:
derivative A' = 40 - 2x = 0
2x = 40
x = 20.
So y = 40 - x
= 40 - 20
=20
x and y are the same value so x = y.
Therefore for maximum area the rectangle is a square.
The largest area of rectangle will be 400 square meters.
Let us consider the length and breadth of rectangle is x and y respectively.
Perimeter of rectangle is given that 80 meters.
[tex]2x+2y=80\\\\x+y=40\\\\y=40-x[/tex]
Area of rectangle is,
[tex]=x*y\\\\=x*(40-x)\\\\A=40x-x^{2}[/tex]
For maximum area, differentiate Area with respect to x and equate with zero.
[tex]\frac{dA}{dx} =\frac{d}{dx}(40x-x^{2} ) \\\\\frac{dA}{dx} =40-2x=0\\\\x=40/2=20m[/tex]
So, [tex]y=40-20=20m[/tex]
Area = [tex]20*20=400m^{2}[/tex]
Thus, The largest area of rectangle will be 400 square meters.
Learn more:
https://brainly.com/question/20628915
NEED HELP ASAP FREE BRAIN LIST
Answer:
9.8
Step-by-step explanation:
[tex]x^2 + 10^2=14^2\\x^2+100=196\\x^2=96\\\sqrt{x^2} =\sqrt{96} \\x=9.8[/tex]
Answer:9.1 or 10.1
Step-by-step explanation:
If you order 3 pizzas, you will get 18 slices of pizza. How many slices are there in one pizza?
Answer:
There are 6 slices on each pizza
Step-by-step explanation:
Because 18 divided by 3 is 6
Enter the value of ( – 8)(15)( - 1/2)
A
60
B
- 60
С
240
D
-240
A farmer grows x acres of peas and y acres of tomatoes. He has 12 acres available to plant peas and tomatoes. Write an inequality in x and y to satisfy this condition. The number acres of tomatoes planted must not be more then twice the number of acres of peas planted. Write an inequality in x and y to satisfy this condition.
Answer:
Y < 2X
Step-by-step explanation:
Let the acres of land on which pea is to be cultivated is "X" acres and the acres of land on which tomato is to be cultivated is "Y"
It is given that number acres of tomatoes planted must not be more then twice the number of acres of peas planted
Thus, [tex]Y < 2X[/tex]
[tex]X + Y = 12[/tex] acres
[tex]Y = 12-X[/tex] acres
Thus,
[tex]12 - X \leq X\\12\leq 2X\\6 \leq X[/tex]
Let us take X = 6 , Then Y = 13-6 = 6
WILL GIVE BRAINLIEST.
If cos(2/3x+20)°=sin(2x−10)°, find the acute angles of the corresponding right triangle.
a = b =
Answer:
u should ask that tutor guy he will help u understand what to do step by srep
Is the following expression greater than, less than, or equal to zero? (a^2+b^2)/(a^2+b^2+1)
so I think it's equal to but can someone verify it for me?
Answer:
is equal cuz a will be cut and be will be cut so what is left 1 is left so it is equal plz Mark me as the brainliest and thank me
Based on the data, which measure of central tendency will provide the most accurate representation of the travel expenses?
A Mean
B. Median
C. Mode
Alicia bought a notebook and several erasers at the student store. The graph shows the relationship between the total cost of her items and the number of erasers she purchased.
What is the cost of each eraser?
Answer:
1.50
Step-by-step explanation: