Answer: B) 19
Step-by-step explanation:
To solve this problem, simply plug in -4 for x:
[tex]f(x)=x^{2} +3\\f(x)=(-4)^{2} +3\\f(x)=16+3\\f(x)=19[/tex]
Hope it helps :) and let me know if you want me to elaborate/explain further
Answer:
D. -13
Step-by-step explanation:
If you substitute -4 in for x you get -4^2+3, so when you simplify you get -16+3 which equals -13.
f(x)=x^2+3
f(-4)= -4^2+3
f(-4)= -16+3
f(-4)= -13
8. Melody subscribes to a coffee service. For $10 a month, Melody is able to purchase a cup of coffee for the
discounted price of $2 for each cup. This situation can be modeled by the function f(x) = 2x+10, where x
represents the number of cups of coffee Melody can purchase. This membership caps the number of cups of
coffee that can be purchased each month at 6.
(D)
Which answer choices best describe the domain and range of f?
Choose TWO correct answers from the 5 choices.
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The range of the function is 102y 2:22.
The domain of the function is 02 x 6. (S-V)E- = (-)5 noitsupe er zelam v to oulev derW.A
The domain of the function is (10, 12, 14, 16, 18, 20, 22).
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The range of the function is {10, 12, 14, 16, 18, 20, 22}
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Answer:
Domain: 0 <= x <= 6
Range: 10 <= x <= 22
Step-by-step explanation:
There is no minimum to the number of cups she can purchase, thus x > 0 or x >= 1. The maximum amount she can purchase is x = 6 or x <= 6, thus 0 <= x <= 6. Plugging these two values into the function we get a range of 10 <= x <= 22.
Write an equation for the line passing through
the points (4,-3) (-2, -6)
Answer:
y=1/2x-5
Step-by-step explanation:
By solving for slope, we get 1/2
We use the equation b=y-mx to find the y intercept
b= -5
Equation: y= 1/2x - 5
5x+3y=-16
-10x-3y=11
Find the solution
Answer: x = 3.2 + 0.6y
Step-by-step explanation: Simplifying
5x + -3y = 16
Solving
5x + -3y = 16
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '3y' to each side of the equation.
5x + -3y + 3y = 16 + 3y
Combine like terms: -3y + 3y = 0
5x + 0 = 16 + 3y
5x = 16 + 3y
Divide each side by '5'.
x = 3.2 + 0.6y
Simplifying
x = 3.2 + 0.6y
Convert to Slope-Intercept Form to graph 3x + 2y = 8.
Answer:
y= - 3/2x+4 or y= - 1.5x+4
Step-by-step explanation:
Slope Intercept Form: y=mx+b
3x+2y=8
2y= - 3x+8
y= - 3/2x+4 or y= - 1.5x+4
Convert to Slope-Intercept Form to graph 3x + 2y = 8.The Slope : -3/2The y-intercept: y = -3x/2 + 4
What is Slope?
The ratio of how much y grows as x grows by a certain amount is known as a line's slope. The slope of a line indicates how steep it is, or how much y rises as x rises. Anywhere along the line, the slope remains constant (the same).
Solve the equation for y resulting in the y = mx + b
Where,
m = slope
b = the y intercept think b beginning.
3x + 2y = 8
Subtracting 3x both side
3x + 2y - 3x = 8 - 3x2y = 8 - 3x
Dividing both side by 22y/2 = 8/2 - 3x/2y = 4 - 3x/2y = -3x/2 + 4
So, m = -3/2and b = 4
Hence, Slope-intercept is y = -3x/2 + 4
To learn more about Slope click on the link
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what is 2x+8+6x+5 can you help please
Answer:
8x+13
Step-by-step explanation:
combine like terms
6x+2x=8x
8+5=13
final answer 8x+13
Drag and drop the correct number to complete the equation.
Answer:
3
Step-by-step explanation:
A city planner wants to build a road parallel to 2nd Ave . What is the slope of the new road?
Answer:
0
Step-by-step explanation:
By inspection or finding points, we see that 2nd ave is perfectly flat, or in other words, has slope of 0.
If line 1 is parallel to line 2, it means their slopes are the same.
So, the new road parallel to 2nd ave has a slope of [tex]\boxed{0}[/tex].
Please somebody tell me answer please
Answer:
ok
Step-by-step explanation:dfghjklkjgfvg
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solve the quadratic 3x^2+x-5=0
Answer
x=1- the square root of 61/6
Please help me fast I am confused!!!
Answer:
The second choice.
Step-by-step explanation:
A linear functions graph is a straight line.
If r = 2,440, then what is 29.3r?
Answer:
29.3r
29.3x2440
=71,492
Melissa put her cat, Herman, on a diet and kept track of his weight. At the end of 4 weeks, she recorded Herman's weight change as −4 1/2 ounces. She noticed that he had lost the same amount of weight each week.
What is Herman's weight change each week of the diet?
Enter your answer as a simplified mixed number, in the box.
Answer:
-4 1/2
-4.5
-4.5 / 4 = -1.125
Answer: -1.13, or -1 1/8
Step-by-step explanation:
Simplify this expression. Assume that x is nonzero.
x^-8x^4=? (Type exponential notation with positive exponents.)
Answer: x-4 or it can be oppisite of the number i said ike -4x
Step-by-step explanation: x-8x4 combine exponents you get
Y- -7= -1(x-1)
What is this written in slope intercept form
Answer:
Y= - x - 6
Step-by-step explanation:
Juan graphed a line with a slope of -23
How does Juan count the slope from any point on the graph?
a. From any point on the graph, he counts down 2 then right 3 to end up on the line again.
b. From any point on the graph, he counts up 2 then right 3 to end up on the line again
c. From any point on the graph, he counts down 2 then left 3 to end up on the line again.
d. I don't know.
Answer:
a. From any point on the graph, he counts down 2 then right 3 to end up on the line again.
Step-by-step explanation:
The slope is -2/3.
-2/3 = 2/-3
slope = rise/run
rise/run = -2/3
Count down 2 and right 3.
rise/run = 2/-3
Count up 2 and left 3
Answer: a. From any point on the graph, he counts down 2 then right 3 to end up on the line again.
ill give brainlyist Write the equation of the line that passes through the points (-1,3)(−1,3) and (-6,-7)(−6,−7). Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal line.
Answer:
negative slope intercept
Step-by-step explanation:
A loading dock manager is unpacking a delivery truck that has 57 boxes of shoes and 26 boxes of socks.
What is the ratio of boxes of socks to boxes of shoes?
26 : 83
26 : 57
57 : 83
57 : 26
Can y'all help with this?
Answer:
Step-by-step explanation:
rate = a
a = -16-(-11)/9-6
a= -5/3
find the value of x PLEASE HELP i’m so lost
x = -5 + 5√3
Step-by-step explanation:
A = ℓ × w
50 = (x + 10) × x
50 = x² + 10x
x² + 10x - 50 = 0
a = 1b = 10c = -50x = [-b ± √(b² - 4ac)] / 2a
x = [-10 ± √(10² - 4(1)(-50))] / 2(1)
x = [-10 ± √(100 - (-200))]/2
x = [-10 ± √300]/2
x = [-10 ± 10√3]/2
x = [-5 ± 5√3]
because x is a unit of length, it is positive
x = -5 + 5√3
Practicing quick shots, Roberto made three baskets in ten seconds. At
this rate, how many baskets could he make in one minute?
Answer:
18 baskets in a minute
Step-by-step explanation:
First, ten seconds is 1/6 of a full minute, so multiply the amount of baskets he made in ten seconds by 6 to get your answer:
3 x 6 = 18
Systems of equations with elimination 2y+7x=−5 and 5y−7x=12
I think it is helpful for you..
Please make me brainliest
please help I’ll give you a points :,)
use estimation to check whether 96.26 is a reasonable solution fot the equation m-62.74=159
Answer:
See below
Step-by-step explanation:
I hope you wrote down the right equation using a minus sign instead of a plus.
Rounding 96.26 off to just 96 and then rounding 62.74 off to 62, you can subtract the two in your head real quick.
96 - 62 = 34
So using this estimation you can see that the answer of 159 is no where near correct.
Please help me due soon
A manufacturer has a monthly fixed cost of $40,000 and a product cost of $8 for each unit produced. The products sells for $12/unit.
Answer:
48,000
Step-by-step explanation:
The cost function by the given data is C(x) = 40,000 + 8x.
We are given that;
Monthly fixed cost = $40,000
The product cost for each unit produced= $8
Now,
The cost function is a function that gives the total cost of producing a certain number of units. The cost function depends on the fixed cost and the variable cost per unit. The fixed cost is the amount of money that the manufacturer has to pay regardless of how many units are produced, such as rent, salaries, utilities, etc. The variable cost per unit is the amount of money that the manufacturer has to pay for each unit produced, such as materials, labor, etc.
In this case, the fixed cost is $40,000 and the variable cost per unit is $8. To find the cost function, we need to add the fixed cost and the product of the variable cost per unit and the number of units.
We can use x to represent the number of units and C(x) to represent the cost function.
Then we have:
C(x) = fixed cost + (variable cost per unit)(number of units)
C(x) = 40,000 + (8)(x)
Therefore, by algebra the answer will be C(x) = 40,000 + 8x.
More about the Algebra link is given below.
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2 less than the quotient of 56 and 7
Answer:
54 and 5
Step-by-step explanation:
56-2 is 54
7-5 is 2
have a good day my little friend learning his 1st addition
can anyone explain this to me?
Answer:
The missing side would be 6.
And the area would be 54.
Step-by-step explanation:
The perimeter equals 30, that's the outside of the rectangle. They give you a part of the perimeter, 9ft. So 9ft and there's another 9ft on the bottom line, (because it is equal to the top width) Which equals 18. To get the other sides you need to subtract 18 from the whole perimeter, 30. Which gives you 12. And there's two sides left, so divide by 2, and you have 6 on each side(left and right sides) Perimeter is adding all the sides up.
And the Area formula is Area=Length times Width. Area=9ft×6ft Which equals 54.
What is an algebraic expression for this word phrase?
5 more than the product of 7 and n
5 + 7n
5(7+n)
7(5+n)
5 + 7 + n
Answer:
The value of the algebraic expression when n is given as 6 will be 38.
An algebraic expression is when we use numbers and words in solving a particular mathematical question.
Based on the information given in the question, the expression will be:
= 1 + 7n - 5
Note that the value of n = 6
Therefore, 1 + 7n - 5 will be:
= 1 + 7n - 5
= 1 + 7(6) - 5
= 1 + 42 - 5
= 38
Step-by-step explanation:Therefore, the value of the algebraic expression when n is given as 6 is 38.
( 8n - 3n^4 + 10n ^2 ) - ( 3n^2 + 11n ^4 - 7)
-14n⁴ + 7n² + 8n + 7
Step-by-step explanation:
(8n - 3n⁴ + 10n²) - (3n² + 11n⁴ - 7)
= 8n - 3n⁴ + 10n² - 3n² - 11n⁴ + 7
= -3n⁴ - 11n⁴ + 10n² - 3n² + 8n + 7
= -14n⁴ + 7n² + 8n + 7
3. Consider two 'postulates' given below: 0 Given any two distinct points A and B, there exists a third point C which is in between A and B. (i) There exist at least three points that are not on the same line. Do these postulates contain any undefined terms? Are these postulates consistent? Do they follow from Euclid's postulates? Explain.
the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.
help me pls ASAP pls ASAP
Answer:
hi lets be friends oki and by the way im a 4th grader