Answer:
T = 15 + 0.75c
T = $19.5
Step-by-step explanation:
Assume that T stands for total cost and c stands for number of single cookies purchased, the equation would be:
T = 15 + 0.75c
Therefore, a dozen cookies plus six single cookies would cost:
T = 15 + 0.75(6)
T = 15 + 4.5
T = $19.5
Complete the steps in solving the quadratic function 7x – 9 = 7x2 – 49x by completing the square.
answer below:
–9 = 7x2 –
⇒ 56 x
–9 +
⇒ 112 = 7(x2 – 8x +
⇒ 16 )
56, 112, 16 in that order
Answer:
it's actually 28+/-√721/7
Step-by-step explanation:
What are the domain and range of f(x) = 2x - 41?
O domain: x < 2; range: (-00,00)
O domain: (-00,00); range: f(x) > 0
O domain: (-0,00); range: f(x) ≤0
O domain: x ≥ 2; range: (-00,00)
Answer:
X intercepts (41/2, 0), Y intercepts (0, -41)
Step-by-step explanation:
I hope this helps, if it doesn't then just message me, and ill be more than happy to help :)
The domain and range of function f(x) = 2x - 41 is domain (-∞,∞) and range is (0,∞).
What is a function?A relation is a function if it has only One y-value for each x-value.
The domain of a function is the set of values that we are allowed to plug into our function.
This set is the x values in a function such as f(x).
The range of a function is the set of values that the function assumes.
The function f(x) = 2x - 41 is a linear function.
As a linear function, the domain is all real numbers, and the range is also all real numbers.
So the domain is (-∞,∞) and range is (0,∞)
Hence, the domain and range of function f(x) = 2x - 41 is domain (-∞,∞) and range is (0,∞).
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Which choice is equivalent to the fraction below when x is an appropriate
value? Hint: Rationalize the denominator and simplify.
2
2-√6x
A.
2+√6x
2-6x
B. 2+√6x
4-3x
C. 2+√6x
2-3x
D. 2+√6x
4-6x
A fraction is a way to describe a part of a whole. The correct option is C.
What is a Fraction?A fraction is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25.
The choice that is equivalent to the fraction can be found by rationalizing the denominator of the fraction. Therefore, we can write,
[tex]\dfrac{2}{2-\sqrt{6x}}\\\\\\=\dfrac{2}{2-\sqrt{6x}} \times \dfrac{2+\sqrt{6x}}{2+\sqrt{6x}}\\\\\\= \dfrac{4+2\sqrt{6x}}{4-6x}\\\\\\=\dfrac{2(2+\sqrt{6x})}{2(2-3x)}\\\\\\= \dfrac{2+\sqrt{6x}}{2-3x}[/tex]
Hence, the correct option is C.
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Find the surface area of the cone in terms of 1.
15 cm
3 cm
In terms of l?
TSA
πr²+πrlπr(l+r)π(3)(3+l)9.42(3+l) cm²LSA
πrl9.42l cm²Answer:
[tex]\sf SA=54\pi\:\:\:cm^2[/tex]
Step-by-step explanation:
Surface Area of a Cone
[tex]\sf SA=\pi r l+\pi r^2[/tex]
where:
r is the radiusl is the slant heightGiven:
r = 3 cml = 15 cmSubstitute the given values into the formula and solve for SA:
[tex]\implies \sf SA=\pi (3)(15)+\pi (3)^2[/tex]
[tex]\implies \sf SA=45\pi+ 9 \pi[/tex]
[tex]\implies \sf SA=54\pi\:\:cm^2[/tex]
Therefore, the surface area of the cone in terms of pi is:
[tex]\sf SA=54 \pi\:\:\:cm^2[/tex]
Jaime makes the following claim.
An angle with a measure of π/3 radians in a circle with a radius of 3 inches is smaller than an angle with a measure of π/3 radians in a circle with a radius of 6 inches. This is because the radian measure is based on the length of the radius of the circle and a radius of 3 inches is smaller than a radius of 6 inches.
1. Review Jaime’s statement and what you know about angles and radians.
a. Explain whether you agree with Jaime’s statement or not.
b. Provide examples to support your whether you agree or disagree.
In the case above, Jaime claim is true.
The explanation to agree with Jaime’s statement or not is that the longer the length of the radius, the longer the length of the arc.What is the claim about?1. Note that radian measure:
= [tex]\frac{60° }{360°}[/tex] x 2π x 3
= 1/6 x 6π
= π
2. Note that radian measure:
= [tex]\frac{60° }{360°}[/tex] x 2π x 6
= 1/6 x 2π x 6
=2π
So we can write it as:
π/3 x 180°/π = 60°
Therefore, via the solution above, Jaime claim is true.
3. Note that: Radian measures: the percentage of arc measures x 2π x radius and so one can say that The explanation to agree with Jaime’s statement or not is that the longer the length of the radius, the longer the length of the arc.
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On a coordinate plane, the x-axis is labeled minutes and the y-axis is labeled Blocks. Line A goes through points (10, 4), (15, 12), and (20, 20). Line B goes through points (5, 8), (10, 16), (15, 24). Line C goes through points (5, 24), (15, 16), (20, 12).
The table shows Jose’s rate of bicycle riding.
A 2-column table with 3 rows. Column 1 is labeled Minutes with entries 5, 10, 15. Column 2 is labeled Blocks with entries 8, 16, 24.
Which line on the graph shows the proportional relationship in the table?
Line
on the graph shows the proportional relationship.
The proportional relationship given in the table is y = 1.6x, and line B shows this relationship.
What is a proportional relationship?A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:
y = kx
In which k is the constant of proportionality.
The constant of proportionality, considering the points on the table, is given as follows:
[tex]k = \frac{24}{15} = \frac{16}{10} = \frac{8}{5} = 1.6[/tex].
Hence the equation is:
y = 1.6x.
Line B gives the same points as the table, hence it shows the proportional relationship.
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There are eight shirts in your closet, four
blue and four green. you randomly select
one to wear on monday and then a
different one on tuesday. you wear blue
shirts both days.
please show your work, just so i would also understand how to answer this question !!
Answer:
it is a 50 50 %chance so it is random this is called probability the probability of blue is half so it is by chance I chose blue
is 1/-1x equivalent
Answer:
[tex]\huge\boxed{\dfrac{1}{-1x}=-\dfrac{1}{1x}=-\dfrac{1}{x}=-x^{-1}}[/tex]
When a patient with hypertension takes a particular type of blood pressure medication, the effects on the systolic pressure, S(t), can be measured by the following piecewise defined function: S of t is equal to the piecewise function of 140 minus 6 times t if 0 is less than or equal to t is less than or equal to 4 and 116 if 4 is less than t is less than 8 and 96 plus 8 times t if 8 is less than or equal to t is less than or equal to 12 where t is the time, in hours, since taking the medication. Based on the graph of the piecewise function, if the patient takes the blood pressure medication at 8 a.m., in which interval will their systolic pressure be lowest?
Based on the graph, the interval will their systolic pressure be lowest is 4pm to 5pm.
What is the interval in blood pressure ?The lowest systolic pressure can be seen from 5 and 8 hours after taken the medication.
If we look at the time details then this will fall inbetween the interval of 2pm to 5pm.
According to question, the time range is 4pm to 5pm.
Hence, the interval will their systolic pressure be lowest is 4pm to 5pm.
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Answer:
The answer is B - 12 P.M to 2 P.M
Step-by-step explanation:
Out of 475 applicants for a job, 240 have 10 years experience and 83 have over 10 years experience and a graduate degree. what is the probability that a randomly chosen applicant has a graduate degree given that they have over 10 years of experience?
Answer:
1
Step-by-step explanation:
Could this be a tricky question? See the point:
240 have 10 years experience (exactly)and 83 have over 10 years experience and a graduate degreeCombining 1 and 2 the answer is 1Though it's inlikely that the first 240 people have only 10 years. Don't take this answer very seriously
select the most appropriate measurement for each of the following
Answer:The following what
Step-by-step explanation:
what is the following and there is no questions.
Please help me with my math
Answer:
6.4
Step-by-step explanation:
It's stated that the shapes are similar.
We can use similarity ratio to find the value of x:
LM/CD = KL/BA
x/4 = (11.2)/7 cross multiply expressions
7x = 44.8 divide both sides by 7
x = 6.4
The nth term of a sequence is -2n-4. Work out the 50th term of the sequence
Answer:
-104
Step-by-step explanation:
Completed by plugging 50 in the equation:
-2(50) - 4 =
-100 - 4 =
-104
f(x)=12(x-10)2+18
What is the "a" value of this function?
Answer:
12
Step-by-step explanation:
Assuming that the 2 actually represents square, the equation is
[tex]f(x) = 12(x-2)^2 + 18[/tex]
[tex](x-2)^2 = x^2 - 4x + 4\\\\12(x-2)^2 + 18 = 12( x^2 - 4x + 4) + 18 = 12x^2 -48x + 48 + 18 = 12x^2 -48x + 66\\[/tex]
This equation is of the form
[tex]ax^2 + bx + c[/tex]
[tex]a = 12, b = -48, c = 66[/tex]
Note
Since the question is only asking for the a value which is the coefficient of x² it is clear that 12 is the coefficient without expanding (x-2)² but it is always better to proceed as above in case you are asked for b and c values also
Value of the function at x=a is [tex]12a^{2} -240a +1218[/tex].
Given function f(x)=[tex]12(x-10)^{2} +18[/tex]
We have to find the value of function at x=a.
For this we have to just put x=a in the function f(x)=[tex]12(x-10)^{2}+18[/tex]
f(a)=12[tex](a-10)^{2} +18[/tex]
we have to expand (x-10) to the power 2 to get the value of function.
f(a)=[tex]12(a^{2} +10^{2} -20a)+18[/tex]
=[tex]12a^{2}+1200-240a+18\\[/tex]
=[tex]12a^{2} -240a+1218[/tex]
Hence the value of function at x=a is [tex]12a^{2} -240a+1218[/tex] means f(a)=[tex]12a^{2} -240a+1218[/tex].
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Bearing a to b is 280 what is bearing b to A
Answer:
please see photo attached for detailed analysis.
Can someone help me please its geometry.
The figure showing the construction is given below.
Steps for the construction of a circle through three points not on a straight line are as follows:
1. To create two lines, connect the points.
2. Create the line's perpendicular bisector.
3. Create the opposite line's perpendicular bisector.
4. The circle's center is where they intersect.
5. Draw your circle by placing the compass on the center point and adjusting its length to reach any point.
What happens if the points are parallel?
The circle traveling through all three points will have an infinite radius if the three points are collinear, or all situated on a straight line. Therefore, a practical circle cannot traverse three collinear locations. The two radii would be parallel and would never come together at a center if you tried the construction. We may claim that they do cross mathematically but at infinity.
Hence, after following the steps we obtain the circle.
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Sylvia bought 4 bananas for 50 cents each and 1 apple for 80 cents. Write a numerical expression to represent this situation and then find the total cost.
Answer: 280
Step-by-step explanation:
50 cents for each banana so: 4* 50= 200
200+80
Answer is 280
Which expression is represented by the diagram?
-6 - (-1)
-6 - 1
-5 - (-1)
-5 -1
Answer:
C
Step-by-step explanation:
Answer:
Please review the question. I don't see a diagram. And the "expressions" are just numbers.
Step-by-step explanation:
The expressions aren't really expressions. There are no variables (x or y).
-6 - (-1) is -5
-6 - 1 is -7
-5 - (-1) is -4
-5 -1 is -6
We don't know if these are values of x or y, so the diagram could only be a series of dots on a number line.
please evaluate the equation
Step-by-step explanation:
[tex] = \sum \limits_{n = 1}^{7} ( - 2. {6}^{n - 1} )[/tex]
[tex] = \sum \limits_ {n = 1}^{n_{ \text{max}}} (a_1. {r}^{n - 1} )[/tex]
[tex] \: [/tex]
[tex]a_1 = - 2[/tex]
[tex]n = 7[/tex]
[tex]r = 6 \to r >1[/tex]
[tex] \: [/tex]
• Find S7.
[tex]s_n = a_1.( \frac{ {r}^{n} - 1}{r - n} )[/tex]
[tex]s_7 = - 2.( \frac{ {6}^{7} - 1 }{6 - 1} )[/tex]
[tex]s_7 = - 2.( \frac{279.936 - 1}{5} )[/tex]
[tex]s_7 = - 2.( \frac{279.935}{5} )[/tex]
[tex]s_7 = - 2 \: . \: 55.987[/tex]
[tex]s_7 = - 111.974[/tex]
The answer is B.
A man of height 1.5 m is standing in front of a tower of height 81.5 m. At what angle should he observe the top of the tower from the distance of 80 m?
The angle at which the man should observe is 45 degrees.
To solve the question :Given :
height of man = 1.5m
height of tower = 81.5 m
distance between tower and man = 80 m
Since, ABCD is a rectangle, AD = BC = 80m
Similarly, AB = CD = 1.5m
EC = ED + CD
81.5 = ED + 1.5
ED = 80m
Now, in order to find the angle EAD, we use trigonometric functions,
tan ∅ = perpendicular / base = ED / AD
tan ∅ = 80 /80 = 1
∅ = [tex]tan^{-1} (1)[/tex]
∅ = 45°.
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Volume and surface area rectangular prism
13 in 7in 7in
The Volume and Surface Area of Prism is 462 in² and 637 in³.
What is Prism?
Prism is a three-dimensional solid object in which the two ends are identical. It is the combination of the flat faces, identical bases and equal cross-sections.
Surface area of rectangular prism,
= 2( lb +bh +lh)
= 2 ( 13*7 + 7*7+ 13*7)
=2*231
= 462 in²
Now, Volume,
= bhl
= 13*7*7
= 637 in³
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What is the slope of the line represented by the equation f(x) = -47
2x 4₂
-4
[tex]\quad \huge \quad \quad \boxed{ \tt \:Answer }[/tex]
[tex]\qquad \tt \rightarrow \: slope \:\: of \:\: line = \cfrac{3}{2}[/tex]
____________________________________
[tex] \large \tt Solution \: : [/tex]
The equation of line is written in slope - intercept form
[tex]\qquad \tt \rightarrow \: f(x) = \dfrac{3}{2} x - 4[/tex]
if we compare it with general slope - intercept equation of line :
[tex]\qquad \tt \rightarrow \: f(x) = mx + c[/tex]
[ m represents slope of line ]
[tex]\qquad \tt \rightarrow \: m = \dfrac{3}{2} [/tex]
Answered by : ❝ AǫᴜᴀWɪᴢ ❞
Answer:
[tex]\frac32[/tex]
Step-by-step explanation:
Hello!
An equation of a line is usually written in slope-intercept form.
Slope Intercept Form: [tex]y = mx + b[/tex]
m = slopeb = y-interceptIf we compare our given equation with the format:
m = [tex]\frac32[/tex]b = -4This means that [tex]\frac32[/tex] would be our slope for the line.
Pls answer thissssssss
Answer:
Area of room = 21 * 16
= 336 m²
Area of Carpet = (21 - 1)* (16-1)
= 20*15
= 300
Area of border = Area of room - Area of carpet
= 336 - 300
= 36 m².
A pair of dice is rolled. What is the probability that the sum is 9 or that the first number is a 2?
Answer:
9/2 or 6/2
Step-by-step explanation:
The sum of nine should be amended by adding 6 + 2 +1 = 9
so when adding these numbers you will get the sum of 9
The graph represents a pair of equations. What point represents the solution to the pair of equations?
Answer:
if I'm correct it's where the 2 lines meet, which would mean the answer to be (-3,2)
Assuming no air resistance, how long would it
take a skydiver to fall 180 feet? (Estimate
your answer to one decimal place. Hint: Use the
equation d = 16+²)
Using the given equation, the time it would take for the skydiver to fall 180 feet is of 3.35 seconds.
What is the height considering no air resistance?The height in feet that a person has fallen after t seconds is given by:
d = 16t².
In this problem, we want the time for a fall of 180 feet, hence.
[tex]16t^2 = 180[/tex]
[tex]t = \sqrt{\frac{180}{16}}[/tex]
t = 3.35
The time it would take for the skydiver to fall 180 feet is of 3.35 seconds.
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Which expressions are in simplest form? Check all that apply. 0 x²³+y³ 1 - 3 9-9 ·to -12 a² + b ² Which expressions are in simplest form ? Check all that apply . 0 x²³ + y³ 1 - 3 9-9 · to -12 a² + b ²
The expression that's in the simplest term will be -12a² + b².
How to illustrate the expression?It should be noted that an expression means a mathematical statement that has a minimum of two terms containing variables.
In this case, the expression that's in the lowest term will be -12a² + b². This is because it's can't be simplified further.
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Suppose you flip two coins. What is the probability of getting at most one heads? give your answer as a reduced fraction.
The probability of getting at most one heads is 1/2
How to determine the probability?Let H represents Head and T represents Tail.
The sample space of two coin is:
S=(H,T),(T,T),(T,H),(H,H).
In the above sample, we have:
At most one head = 2
Total = 2
The required probability is then calculated as:
P = 2/4
Simplify
P = 1/2
Hence, the probability of getting at most one heads is 1/2
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3. If there are 104 ounces in 2 quarts, how many quarts are there in 260 ounces?
A. 5
B. 2.5
C. 26
D. 1300
It's very urgent plss answer
The solution of the equation 4p – [(2p – 3) / 2] = 6 with variable p will be 1.5.
What is the solution of the equation?The solution of the equation means the value of the unknown or variable.
The equation is given below.
4p – [(2p – 3) / 2] = 6
On simplifying, we have
(8p – 2p + 3) / 2 = 6
6p + 3 = 12
6p = 9
p = 1.5
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