Answer:
see attached
Step-by-step explanation:
The boundary lines and solution region are shown on the attached graph. It is convenient to let a graphing calculator plot them.
__
If you'd like to plot the boundary lines by hand, it is useful to note the equations for them are in standard form:
ax +by = c
This means the slope is m = -a/b, and the y-intercept is c/b. Here, the odd constant values mean that (most) intercepts will involve fractions.
2x+5y<19slope: -2/5
y-intercept: 19/5 = 3.8
points on the line: (7, 1), (2, 3)
The general form ...
x < ( ) . . . . means the line is dashed and shading is to the left.
__
x-2y<-9slope: 1/2
y-intercept: 9/2 = 4.5
points on the line: (1, 5), (-3, 3)
The general form ...
x < ( ) . . . . means the line is dashed and shading is to the left.
__
Solution RegionThe lines have slopes of opposite signs, so cross in a fashion that forms an "X" on the graph. Shading is left of both lines, so will be in the left quadrant of the X. The boundary lines are not part of the solution region.
_____
Additional comments
The boundary line will be solid when the inequalitiy includes the "or equal to" case. This is identified by the symbols ≤ or ≥. Here, we have the symbol <, which does not include the "or equal to" case, so the boundary line is dashed. (The same would be true for an inequality using >.)
To determine shading direction, it is convenient to pick a variable with a positive coefficient, and look at its relation to the inequality symbol. In the first inequality, we could choose either of ...
x < ( ) . . . . . shading left of the dashed liney < ( ) . . . . . shading below the dashed line__
In the second inequality, the only variable with a positive coefficient is x, and its relation to the inequality symbol is ...
x < ( ) . . . . . shading left of the dashed lineIf we were to rewrite the second inequality to give the y-variable a positive coefficient, we could get either of ...
y > ( ) . . . . . multiply by -1/2( ) < y . . . . . add the opposite of the y-termEither way, the shading is above the dashed line.
__
About points on the line:
The inequalities have odd constants (19, -9) and coefficients with different parity (one even, one odd). That makes it convenient to choose an odd value for the variable with the odd coefficient. The result will be an integer value for the variable with the even coefficient.
Joshua started working on his Math project at 4:25 p.m. He finished by 5:25 p.m. How many minutes did he work on his project?
A. 80 minutes
B. 70 minutes
C. 60minutes
D. 50 minutes
30. Pis does her workout for 50 minutes every day. Today, she started at 6:30 m. At what time will she finish?
A. 7:15 a.m.
B. 7:20 a.m.
C. 7:30 a.m.
D. 7:35 a.m
31. Find the circumference of a circular lot whose diameter is 9 m.
A. 25.26 m
B. 27.26 m
C. 28,26 m
D. 30.26 m
32. Find the circumstance of a circular whose radius is 30m.
A. 188.40 m
B. 188.30m
C. 188.20 m
D. 188m
select all the expressions that equal 3 to the power of 4.
A.7
B.4 to the power of 3
C.12
D.81
E.64
F.9 to the power of 2
The equivalent expression of 3 to the power of 4. is 9 to the power of 2.
How to determine the equivalent expression?The expression is given as:
3 to the power of 4.
Mathematically the expression is
[tex]3^4[/tex]
Express 4 as 2 * 2
[tex]3^{2*2}[/tex]
Evaluate 3^2
[tex]9^2[/tex]
This means that:
9 to the power of 2.
Hence, the equivalent expression of 3 to the power of 4. is 9 to the power of 2.
Read more about equivalent expression at:
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Alex ate 4 less the 2 times the slices of pizza that Oliver ate.If Oliver ate 8 slices of pizza how many slices did alex eat?
Answer: 12
Step-by-step explanation: 2 times of 8 is 16, but it says 4 less, so you subtract 4 and that equals 12.
10 divided by 3.95 times 67=3?
Answer: (Decimal: x = 0.99746…)
Step-by-step explanation:Given:
f(x)=x^2
g(x)=x-1
Find f(g(2))+g(f(-1))
Answer:
1
Step by step explanation:
[tex]\text{Given that,} ~ f(x) = x^2~ \text{and}~ g(x) = x-1\\\\g(2) = 2-1 = 1\\\\g(f(-1)) = g(1) = 1-1 = 0\\\\f(g(2) + g(f(-1)))= f(1+0) = f(1) = 1^2 =1[/tex]
Answer:
g(2) = 2 - 1 = 1 \\ f( -1 ) = { - 1}^{2} = 1 \\ f(1) + g(1) = \\ f(1) = {1}^{2} = 1 \\ g(1) = 1 - 1 = 0 \\
[tex]g(2) = 2 - 1 = 1 \\ f( -1 ) = { - 1}^{2} = 1 \\ f(1) + g(1) = \\ f(1) = {1}^{2} = 1 \\ g(1) = 1 - 1 = 0 \\ 1 + 0 = 1 \\ [/tex]
put the decimal point in the correct places to get the difference 323 - 362 = 28.68
The correct location is between the two and three for the first digit and the three and six for the second number.
help?? its for calc please
Answer:
its logx=logy
Answer:
its logx=logy
I need help finding the value of x.
[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]
Here we go ~
According to given figure,
[tex]\qquad \sf \dashrightarrow \:x + 68 = 174[/tex]
[tex]\qquad \sf \dashrightarrow \:x = 174 - 68[/tex]
[tex]\qquad \sf \dashrightarrow \:x = 106 \degree[/tex]
Jerome is writing a number in scientific notation. The number is greater than one million and less than ten million. What will be the exponent in the number Jerome writes?
Answer:
6 will be the exponent
Step-by-step explanation:
1 million has 6 zeros
It took Azul 1.75 hours to bike The Blue Mountain Trail
Azul averaged 12.5 miles per hour. What is the best
estimate for the length of the trail?
AnsweA jar contains 15 red marbles, 30 blue marbles, 10 green marbles, and 35 orange marbles. Find the probablilty of picking a green marble.r:
Step-by-step explanation:
I need this answered
g(x)=4x+4
[tex]\:\boxed{\bf{Table}}\:\:\:\\ \boxed{\begin{array}{c|c}{\boxed{\bf x}}&{\boxed{\bf{g(x)}}}\\ \sf -1 &\sf 0\\ \sf 0&\sf 4 \\ \sf 2&\sf 12 \\ \sf 3&\sf 16 \\ \sf 4 &\sf 20\end{array}}[/tex]
The general strategy for solving an equation of the form x/a= bis to
A. divide both sides by a
O B. divide both sides by b
C. multiply both sides by a
D. multiply both sides by b
E. divide both sides by x
[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]
The general strategy for solving the equation in form of :
[tex]\qquad \tt \dashrightarrow \: \dfrac{x}{a} = b[/tex]
is to multiply both sides by a, because if we multiply both sides by a, then a on left side get cancel out and we get the value of x in terms of a and b.
so, correct choice is C. multiply both sides by a
Best way is multiply with a
By which x gets isolated
Let's check how?
ax/a=bax=abNikki use some cloth to make a miniature tent, as shown in the figure. How much cloth did she use to make the tent?
A.
61 square inches
B.
140 square inches
C.
272 square inches
D.
296 square inches
E.
300 square inches
Answer:
D. 296 square inches
Step-by-step explanation:
The surface area of a prism is the total area of all its faces.
A triangular prism has three rectangular faces and two triangular faces.
As all 3 sides of the triangle face of this prism are equal, each of the 3 rectangular faces are also equal in area.
Formulae
Area of a triangle = 1/2 x base x heightArea of a rectangle = width x lengthFrom inspection of the diagram:
⇒ Area of a triangle = 1/2 x 8 x 7 = 28 in²
⇒ Area of a rectangle = 8 x 10 = 80 in²
Total surface area
Total surface area = 3 rectangle areas + 2 triangle areas
= (3 x 80) + (2 x 28)
= 296 in²
Answer:
296
Step-by-step explanation:
have a great day
1. Find the length of X and Y:
2. Find the area of the equilateral triangle:
Step-by-step explanation:
1)
[tex] \sin(theta) = \frac{opposite \: side}{hypotenuse} [/tex]
[tex] \sin(30) = \frac{x}{10} = \frac{1}{2} [/tex]
[tex] \frac{x }{1} = \frac{10}{2} [/tex]
[tex]x = 5[/tex]
In right Angles traingle
By using Pythagoras theorm
we get
x²+y²=10²
25+y²=100
y²=75
y=5√3
x=5,y=5√3
2)
Area of equilateral traingle =
[tex] \frac{ \sqrt{3} }{4} {a}^{2} [/tex]
required area
[tex] \frac{ \sqrt{3} }{4} \times {6}^{2} [/tex]
[tex] \frac{36 \sqrt{3} }{4} [/tex]
[tex]9 \sqrt{3} [/tex]
Find two numbers who have a sum of 21 and a product of 104.
Please include the following in your response:
1) The system of equations used to solve the problem (These are the two equations)
2) The two numbers (The answer)
3) A brief explanation of how you found the numbers
The two numbers are 8 and 13 and the system of equations are x + y = 21 and xy = 104
System of equationsLet the two unknown numbers be x and y
If the sum of the numbers is 21, hence;
x + y = 21
x = 21 - y
If the product is 104, then;
xy = 104
(21-y)y = 104
21y - y^2 = 104
y^2-21y + 104 = 0
Factorize the result
y^2-8y - 13y+ 104 = 0
y(y-8) - 13()y-8) = 0
y = 13 and 8
Hence the two numbers are 8 and 13 and the system of equations are x + y = 21 and xy = 104
Learn more on system of equation here: https://brainly.com/question/847634
can anyone answer this???
Answer:
9 3/10
Step-by-step explanation:
5 4/5 = 5 8/10
3 1/2 = 3 5/10
3 5/10 + 5 8/10 = 9 3/10
[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
Here we go ~
[tex]\qquad \tt \dashrightarrow \:5 \frac{4}{5} + 3 \frac{1}{2} [/tex]
[tex]\qquad \tt \dashrightarrow \:\frac{29}{5} + \frac{7}{2} [/tex]
[tex]\qquad \tt \dashrightarrow \:\frac{58 + 35}{10} [/tex]
[tex]\qquad \tt \dashrightarrow \:\frac{93}{10} [/tex]
[tex]\qquad \tt \dashrightarrow \:9\frac{3}{10} [/tex]
Jabrin was tossing a ball up in the air and catching it. He found that in 50 tries, he could catch it 45 times. He is going to do this 33 more times. Predict how many times Jabrin will catch the ball out of these 33 tosses.
What is the exact prediction? What is the realistic prediction?
Answer:
As the question states, predict how many times. I don't get the "realistic" prediction part, but however,
he caught it 9/10 times. I can predict he will catch it 29.7 times, rounded to 30 times.
According to the image below, which season is about to begin in the southern hemisphere?
O Summer
O Autumn
O Winter
O Spring
Answer:
Step-by-step explanation:
this would be summer. because i took le test puddin -Love harley
IMAGE IS DOWN BELOW!!
SOMEONE PLEASE HELP ME!!
ILL GIVE YOU BRAINLIST ANSWER AND POINTS!!
Answer:
14.3
Step-by-step explanation:
Formula: a^2 + b^2 = c^2
9+196= 205 then find the square root of 205, approximate then use tenths.
Answer:
14.3
Step-by-step explanation:
Use the following equation:
a² + b² = c² , in which the variable c = hypotenuse, and a & b are the other legs.
It is given that the legs measure 3 and 14 respectively. Plug in the given numbers to the given leg variables:
a² + b² = c²
3² + 14² = c²
Simplify. First, solve the powers, and then combine like terms:
(3 * 3) + (14 * 14) = c²
9 + 196 = c²
c² = 205
Next, root both sides of the equation:
√c² = √205
c = √205 = 14.3178
c = 14.3 (Rounded to the nearest tenth).
14.3 is your answer.
~
translate the triangle 3 to the right and 2 down
Answer:
Step-by-step explanation:
There is no picture but I can give you an explanation of how to do it. You would take each point (vertice) of the triangle and move it on the x-axis 3 and on the y-axis -2. So for example, a point-like (5,4) would become (8,2) You would then repeat this for the remaining vertices.
how to work out 4.2 × 0.03. Show the working not the answer straight! Show how you got the answer.
Answer:
1.26
Step-by-step explanation:
To solve 4.2*0.03, you move the decimal point to the right however many times to both numbers until they are whole numbers.
Doing this, we have 420*3, which took 3 decimal point shifts, so now we do 420*3 to get 1260, and then go 3 decimal places to the left to get the actual answer.
Thus, 4.2*0.03=1.260=1.26
Work out the equation of the line which has a gradient of 2 and
passes through the point (2, 5)
Answer:
y=2x+1
Step-by-step explanation:
You use the equation y=mx+b and substitute m for the slope/gradient. Then you use (2,5) to subtitue for y and x. Solve the equation for b. Then you have your slope and b, and you can make your equation from this.
Jalece and Kaylyn are making brownies and muffins for a bake sale. They make 40 more muffins than brownies. They made a total of 126 sweet items for the sale. How many of each type of baked good did they make?
I really don't know I hope you can figure it out
Answer: 43 brownies and 83 muffins.
Step-by-step explanation: There are 126 sweet items in total. Jalece and Kaylyn make 40 more muffins than brownies, which means that there are more muffins than brownies. Let's try 83 muffins and 43 brownies to see if it suits what we need. With 83 muffins and 43 brownies, there are 40 more muffins than brownies, so that's correct. 83 and 43 also add up to 126, which is the total that we need.
Therefore, there are 43 brownies and 83 muffins.
Let me know if this is right! :)
17. There are 147 people at a tree-planting
event. They break into groups of 3 people
to plant trees. How many groups are
formed?
Answer:
147/3=49
49 groups
Step-by-step explanation:
A rental car costs $15 a day plus 25 cents for each mile driven. Which
expression shows the cost to rent a car for 1 week and drive 200 miles?
A. (15.25 x 7) + 200
B. (0.25 x 7) + (15 x 200)
C. (15 x 7) + (0.25 x 200)
D. 15 + (0.25 x 200
The expression that shows the cost to rent a car for 1 week and drive 200 miles is (15 × 7) + (0.25 × 200)
The problem can be modelled to a linear equation.
Linear equationLinear equation can be represented in slope intercept form as follows:
y = mx + b
where
m = slope
b = y-intercept
Therefore,
y = total cost of the rental
x = mile driven
Hence,
y = 0.25x + 15
Therefore, the expression that shows the cost to rent a car for 1 week and drive 200 miles is as follows:
(15 × 7) + (0.25 × 200)learn more on linear equation here: https://brainly.com/question/1550434
iready help me pleeeaseeeee
Answer:
Step-by-step explanation:
Reduce the expression, if possible, by cancelling the common factors.
Exact Form:
24/5
Decimal Form:
4.8
Mixed Number Form:
4 4/5
Determine if the two figures below are congruent. Use the drop-down
menus below to justify why. Which angle on Figure 2 corresponds to
angle M on Figure 1?
Answer: are congruent, rotation
Step-by-step explanation:
A can of nacho cheese has a radius of 8 inches and a height of 4 inches. a can of
jalapeños has a radius of 4 inches. what is the height of the jalapeño can if both
cylinders have the same volume? (show your work.)
(hint: start by finding the exact volume of the nacho cheese can.)
Answer:
8 inches
Step-by-step explanation:
Nacho cheese
v= Pi×radius×2×height
v = 3.14×8×2×4 = 200.96
jalapeño
3.14×4×2=25.12
200.96÷25.12=8
the height is 8
to check your work you can do
(multiply by 8 and see if it equals 200.96)
3.14×4×2×8 = 200.96
since the volume is the same as the volume for nacho cheese we can say that 8 inches for height is correct
(Look at screenshot)
7. The graph represents the height of a passenger car on a ferris wheel, in feet, as a
function of time, in seconds.
Use the graph to help you:
a. Find H(0).
b. Does H(t)=0 have a solution? Explain how you know.
c. Describe the domain of the function.
d. Describe the range of the function.
Step-by-step explanation:
Use the graph to dtermine the answer for each part of question
a)
H(0) = 5b)
H(t) = 0 has no solution as its minimum value is 5 feetc)
The domain all positive rational numbers, since time is zero or positive.d)
The range changes between 5 and 55 feet, according to the graph.Answer:
a. 5 ft
b. No - see below
c. [0, ∞)
d. [5, 55]
Step-by-step explanation:
From inspection of the graph:
x-axis: t = time (in seconds)y-axis: H(t) = height (in feet)Part a
When H(0), t = 0 ⇒ y-intercept.
Therefore, from inspection of the graph, H(0) = 5 ft
Part b
H(t) = 0 does not have a solution as the curve never touches the y-axis (when y = 0).
Part c
Domain: set of all possible input values (x-values)
The domain is time (t) (x-axis), therefore the domain is [0, ∞)
Part d
Range: set of all possible output values (y-values)
From inspection of the graph, the lowest value of H(t) is 5 and the highest value of H(t) is 55. Therefore, the range is [5, 55]
Which graph represents the equation ? [ x - 1/2 ]^2 + [ y + 5/2 ]^2 = 1/4?
Answer: 2
Answer:
B
Step-by-step explanation:
center (1/2,-5/2)
radius=1/2