Answers
Answer:
The domain of R = [-2, ∞)
Step-by-step explanation:
We know that the domain of a function is the entire set of input values for which the function remains real and defined.
Given the attached graph, we can observe that at point x=-2 the graph heads towards positive infinity.
i.e. [-2, ∞) is the interval.
It means from x=-2 onwards to the positive infinity i.e. the interval [-2, ∞), the graph is representing the domain.
Therefore, the domain of R = [-2, ∞)
Related Questions
PLEASE HELP,, GIVING BRAINLIEST!!!!
What’s the value of y? Show your work.
Answers
Answer:
60
Step-by-step explanation:
7^2=7^2 +7^2 -2(7)(7).cos y
[tex]1/2 =cos y\\60 =y\\[/tex]
Select all of the ratios that are equivalent to 6:3?
Answers
Answer: We can't see the ratios.
Step-by-step explanation:
A mixture of 30 pounds of candy sells for $1.10 a pound. The mixture consists of chocolates worth $1.50 a pound and chocolates worth 90¢ a pound. How many pounds of the $1.50 chocolate were used to make the mixture?
If x represents the pounds of $1.50 chocolates used, then which of the following represents the pounds of 90¢ chocolates used?
x
30 - x
30
Answers
Answer:
10 pounds of the $1.50 chocolate were used.
30 - x represents the number of pounds of the 0.90 chocolate used.
Step-by-step explanation:
30 * 1.10 = 1.5x + 0.9 (30 - x)
33 = 1.5x + 27 - 0.9x
0.6x = 6
x = 10
Answer:
30 - x
Step-by-step explanation:
3.3.PS-11
Decide whether the table shows a proportional
relationship between x and y.
х
y
4.
3
5
19
4.
4
5
25
1
5
5
1
11
25
Answers
Answer:
4y
Step-by-step explanation:
Answer: The table ▼
does
does not
show a proportional relationship between x and y.
12x-9=10x-15 Help me answer this please
Answers
Answer:
x = -3
Step-by-step explanation:
Given:
12x - 9 = 10x - 15
Now, let's add 15 to both sides of the equation.
12x + 6 = 10x
Now, let's subtract 12x from both sides of the equation.
6 = -2x
Now, let's divide both sides by -2.
-3 = x
Which equation could be equivalent to 22 - 3?
Answers
Answer:
22 + (-3)
Step-by-step explanation:
Adding a negative is the same as subtracting a positive.
Help please it says round your answer to the nearest hundredth
Answers
Answer:
∠ B ≈ 62.73°
Step-by-step explanation:
Using the sine ratio in the right triangle.
sinB = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{AC}{AB}[/tex] = [tex]\frac{8}{9}[/tex] , thus
∠ B = [tex]sin^{-1}[/tex] ([tex]\frac{8}{9}[/tex] ) ≈ 62.73° ( to the nearest hundredth )
The ratio of boys to girls in the sixth grade are 2:3. If there are 200 sixth graders, how many of them are boys?
Answers
Answer:
80
Step-by-step explanation:
2:3
2+3=5
2/5×200=80
Line f passes through points (92, 19) and (-4, 94). Line g is perpendicular to f. What is the slope of line g?
Answers
Answer:
1.28
Step-by-step explanation:
slope of line f = (94 - 19)/(-4 - 92) = -75/96
since line g is perpendicular to line f, the product if their slope = -1
therefore, 75/96 x slope of line g = -1
slope if line g = -1/(-75/96) = 96/75 = 1.28
Topic: Coordinate Geometry
If you would like to venture further, you can check out my Instagram page (learntionary) where I post notes and mathematics tips. Thanks!
Identify the slope from the equations y = -x -6
Answers
Answer:
The slope of the line is -1
I've attached a screenshot of a website that can solve function.
May I have brainliest please? :)
Question- Solve for a
2a+b=x
Answers
Answer:
a = (x - b)/2
Step-by-step explanation:
2a + b = x
-b -b
2a = x - b
/2 /2
a = (x - b)/2
for ex:
x = 3
b = 2
a = ((3) - (2))/2 = 0.5
a = 0.5
2a + b = x
2(0.5) + 2 = 3
solve for x plsssssss
Answers
Answer:
x = 129º
Step-by-step explanation:
It will take some time to elaborate but start this way:
you see the triangle with the 58º and 57º? Now by rule, the sum of all angles ina triangle is 180º
so 57+58 = 115
to discover the other angle you just have to 180-155 = 65
Now that you know the 65º by rule the angle facing it is exactly the same, follow from there, solve all triangles until you get to x...
How many sides does a nonagon have?
sides
Answers
Answer:
9 sides due to the fact, the prefix nona means nine or ninth
Answer:Nine sides
Step-by-step explanation: have a good day :)
The first term of an arithmetic progression is 80 and the common difference is -3. what is the greatest possible sum of the first n terms of this sequence, and for which value of n does it occur?
I need help with this question, in advance thank you :)
Answers
Answer:
S=157
Step-by-step explanation:
an= a1+(n-1)d
a2=80+(2-1)(-3)
a2=80-3
a2=77
Sn=(a1+an)*n/2
S2=(80+a2)*2/2
S2=(80+77)*1
S2=157
Y’all I need help I need a good grade on this
Answers
Answer:
SLOPE IS -3
Step-by-step explanation:
4-7 over 0-(-1)
Are the lines 12x + 3y=-9 and -8x – 2y = 14 parallel?
Answers
Answer:
Yes, the lines are parallel.
Answer:
they are parallel
Step-by-step explanation:
slope of both line come 4
Write the recurring decimal 0.63as a fraction
Answers
Answer:
63/100, this can't further more simplified
Step-by-step explanation:
i hope it helped you please give me brainliest
HELP ASAP
Matthew made a fruit salad, in which the ratio of blueberries to red grapes is 8:6. If Matthew used 36 red grapes and the rest were blueberries. How many pieces of fruit are in Matthew’s fruit salad? [Type your answer as a number.]
Answers
Answer:
84 pieces of fruit
Step-by-step explanation:
The number of pieces of fruit are in Matthew’s fruit salad --> 48+36=84
help find missing segment??
Answers
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Let x as the missing segment.
_________________________________
According to the Thales theorem :
[tex] \frac{26}{x} = \frac{12}{36} \\ [/tex]
[tex] \frac{26}{x} = \frac{12}{12 \times 3} \\ [/tex]
[tex] \frac{26}{x} = \frac{1}{3} \\ [/tex]
Inverse both sides
[tex] \frac{x}{26} = \frac{3}{1} \\ [/tex]
[tex] \frac{x}{26} = 3 \\ [/tex]
Multiply sides by 26
[tex]26 \times \frac{x}{26} = 26 \times 3 \\ [/tex]
[tex]x = 26 \times 3[/tex]
[tex]x = 78[/tex]
Thus the missing segment has a measure of 78 .
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A school allots £2000 to spend on a trip to the theatre. Theatre tickets have a regular cost of £32 each and are on offer for 1 4 off. A train ticket for the day will cost £12 each. If 2 teachers and the maximum number of students attend, how much money will the school have left over?
Answers
Answer:
£20
Step-by-step explanation:
Given that:
Total amount alloted = 2000
Ticket cost = 32
Discount = 1/4 off
Hence, ticket price = 3/4 * 32 = 24
Train ticket cost = 12
Total cost per person = £(12 + 24) = £36
Hence, alloted amount / cost per person
= £2000 / £36
= 55.55
Total number that can attend = 2 teachers and 53 students
Change = £2000 - (£36*55)
= £20
A recipe calls for 2 teaspoons
of sugar for every 3 cups of
flour. How much sugar will be
needed for 9 cups of flour?
Answers
Answer:
he is right
Step-by-step explanation:
A 2-column table with 3 rows. Column 1 is labeled Days, x with entries 3, 4, 5. Column 2 is labeled Miles, y with entries 771, 973, 1,175.
The Boden family is taking a road trip across the US. After initially driving for awhile, the Bodens decide to make a plan to drive a set number of miles each day. Days 3, 4, and 5 are displayed in the table. Assume the relationship is linear.
Identify how many miles per day the Boden family is planning to travel.
miles per day
Answers
Answer:
202 miles per day
Step-by-step explanation:
Answer:
165
Step-by-step explanation:
A 2-column table with 3 rows. Column 1 is labeled Days, x with entries 3, 4, 5. Column 2 is labeled Miles, y with entries 771, 973, 1,175.
The Bodens drove for awhile before they made a plan to drive a set number of miles each day. Days 3, 4, and 5 are displayed in the table. Assume the relationship is linear.
Determine the initial number of miles that the Boden family drove before they made their plan.
771 miles
367 miles
165 miles
135 miles
This is your correct answer 165, oops this is the wrong question sorry
find the slope of the table
Answers
Answer:
equation for slope:
y2-y1 / x2-x1
0- (-4) / 0 - (-5)
4/5 is your slope
Step-by-step explanation:
The distance a jet travels varies directly with the number of hours flown. A jet travels 1,350 miles in three hours. If the jet continues to travel at the same rate, how far will it fly in seven hours?
Answers
Answer:
3150
Step-by-step explanation:
1350/3= 450
1350+1350+450= 3150
Write each algebraic expression in words.
Then evaluate each expression for n = 6.
a) 4n:
b) n + 8:
c) n/2:
d) 7 + 3n:
e) 10n – 15:
f) 50 – 8n:
Please help :(((
Answers
b) a number plus 8; (6) + 8 = 14
c) a number divided by 2; (6)/2 = 3
d) 7 added to a number multiplied by three; 7 + 3(6) = 25
e) 15 subtracted from 10 times a number; 10(6) -15 = 45
f) 8 times a number subtracted from 50; 50 - 8(6) = 2
I hope this helps!
Sara owns a paint shop that makes custom paints. To make one gallon of a specialty color, she needs 4 royal blue units that each cost $b. She also needs 9 yellow units that each cost $y. A customer orders 4 gallons of this paint.
Sara uses the expression 4(4b + 9y) to find the total cost for the color units needed to make each gallon of paint.
Explain how to write an expression that is equivalent to the total cost expression. Then determine the total cost for the color units needed to make the paint if each royal blue color unit costs $0.30 and each yellow unit costs $0.10.
Answers
Factor 10z + 45.
i need help!
Answers
Answer:
5(2z +9)
Step-by-step explanation:
factor out 5 of 10z +45
Write the equation for the line that is parallel to the given line and that contains
the given point. Use the point-slope form of the equation of a line.*
(-3,4) y=-x-11
Answers
Answer:
x + y - 1 = 0
Step-by-step explanation:
y = -x - 11
therefore its slope is -1
x1= -3
y1 = 4
m = -1
from, y - y1 = m(x -x1)
y - 4 = -1(x + 3)
y -4 = -x -3
x + y -1 = 0
Help please ill brainlist
Answers
Answer: a
Step-by-step explanation: i took the test
1. Choose the word form for: 56.23 *
fifty six and twenty three thousandths
fifty six and two tenths
fifty six and twenty three hundredths
five hundred six and twenty three hundredth
Answers
Answer:
The third one
Step-by-step explanation:
50 Fifty 3 three . and 20 twenty 3three hundreths