Answer:
The answer is 42%.
Step-by-step explanation:
If we make a Venn diagram, we get 12% in the middle, meaning that 12% of people chose both coffee and juice.
54% is the total amount of people who chose coffee, including the % of people who chose coffee as well as juice.
So, we need to subtract 12% from 54%, therefore giving us 42%.
The percentage of people choose coffee only is 42%.
We have given that,
At a breakfast buffet, 54% of people choose coffee for their beverage while 16% choose juice. Also, 12% choose both coffee and juice.
If we make a Venn diagram, we get 12% in the middle, meaning that 12% of people chose both coffee and juice.
What is the percentage?This free percentage calculator computes a number of values involving percentages, including the percentage difference between two given values.
54% is the total amount of people who chose coffee, including the % of people who chose coffee as well as juice.
So, we need to subtract 12% from 54%, therefore giving us 42%.
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HELLPPP!!!
20 pts!!
question and the options are included
The answer is bike just do some simple math
A projectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. After how many seconds does the projectile take to reach its maximum height? Show your work for full credit.
Final answer:
The projectile reaches its maximum height after 22 seconds, which is determined by the vertex formula t = -b/(2a) applied to the given quadratic function representing the height over time.
Explanation:
To determine after how many seconds the projectile reaches its maximum height, we need to analyze the function h(t) = -16t2 + 704t. This is a quadratic function, and the maximum height will be reached at the vertex of the parabola represented by this function.
The vertex of a parabola given by ax2 + bx + c can be found using the formula t = -b/(2a), where a, b, and c are coefficients from the quadratic equation. In this case, a = -16 and b = 704.
Using the formula to find the time t when the projectile reaches its maximum height, we calculate: t = -704/(2 × -16) = 704/32 = 22. Therefore, the projectile reaches its maximum height after 22 seconds.
to add -4 to 5 on anumber line , start at +5 and move 4 spaces to the _______ (fill in blank)
Answer:
left
Step-by-step explanation:
Answer:
left
Step-by-step explanation:
because it is a negative number you would subtract that from +5
hope this helps :)
The cost to rent an instrument is $65 for the first month. It costs $30 for each additional month, x, that the instrument is rented. Which expression represents the total cost of renting the instrument?
A. 30 + 65x | B. x + 35 | C. 65 + 30x | D. x + 95
Final answer:
The total cost of renting the instrument is represented by the expression 65 + 30x, which accounts for the initial rental fee and the additional cost per subsequent month.
Explanation:
The expression that represents the total cost of renting the instrument is C = 65 + 30x, which is option C. To understand this, consider that there is a flat rental fee of $65 for the first month and an additional cost of $30 for each subsequent month an instrument is rented. The variable x represents the number of additional months the instrument is rented. Therefore, the total cost is given by the initial cost plus the cost for additional months, which in algebraic terms is 65 + 30x.
I’d really appreciate help with these...
Answer:
+- 5 and +- 3
Step-by-step explanation:
qn 2:
4r² = 91 + 9
4r² = 100
r² = 25
r = +- 5
qn 3:
4r² = 29 + 7
4r² = 36
r² = 9
r = +- 3
Answer:
Q2. (±5)Q3. (±3)Step-by-step explanation:
[tex]\bold{Q2.}\\\\4r^2-9=91\qquad\text{add 9 to both sides}\\\\4r^2-9+9=91+9\\\\4r^2=100\qquad\text{divide both sides by 4}\\\\\dfrac{4r^2}{4}=\dfrac{100}{4}\\\\r^2=25\to r=\pm\sqrt{25}\\\\\boxed{r=\pm5}[/tex]
[tex]\bold{Q3.}\\\\4r^2-7=29\qquad\text{add 7 to both sides}\\\\4r^2-7+7=29+7\\\\4r^2=36\qquad\text{divide both sides by 4}\\\\\dfrac{4r^2}{4}=\dfrac{36}{4}\\\\r^2=9\to r=\pm\sqrt9\\\\\boxed{r=\pm3}[/tex]
Write a proportion and show work
for this case we must write a proportion that shows the earnings obtained from Mrs. Miller for the sale of the house.
By making a rule of three we have:
179000 ------------> 100%
x -----------------------> 6%
Where "x" represents the gains obtained.
So:
[tex]x = \frac {6 * 179000} {100}[/tex]
Writing the proportion:
[tex]\frac {x} {179000} = \frac {6} {100}[/tex]
The earns were:
[tex]x = 10740[/tex]
ANswer:
[tex]\frac {x} {179000} = \frac {6} {100}\\x = 10740[/tex]
Answer:
$10,740
Step-by-step explanation:
You know that Mrs. Miller sells a house for $179,000. Then the cost of the house will be the 100%.
Knowing that she earns 6% of comission, you can set up the following proportion (Let be "x" the amount of money she earns), then:
[tex]\frac{\$179,000}{100}=\frac{x}{6}[/tex]
Now you need to solve for "x". Therefore, you get:
[tex](6)(\frac{\$179,000}{100})=x[/tex]
[tex]x=\$10,740[/tex]
Which represents the solution(s) of the system of equations, y = x2 – 6x + 8 and y = –x + 4? Determine the solution set by graphing.
Answer:
The solutions are the points (1,3) and (4,0)
Step-by-step explanation:
we have
[tex]y=x^{2} -6x+8[/tex] ----> equation A
[tex]y=-x+4[/tex] ----> equation B
Solve the system of equations by graphing
Remember that the solution of the system of equations are the intersection points both graphs
using a graphing tool
The graph has two intersection points
therefore
the system of equations has two solutions
The solutions are the points (1,3) and (4,0)
see the attached figure
Answer:
its c on edge
Step-by-step explanation:
cause um if you look at c on edge it looks like the bestes answer
2/x-5=4x
What is the value of x
Answer:
[tex]\large\boxed{x=\dfrac{5\pm3\sqrt3}{2}}[/tex]
Step-by-step explanation:
[tex]Domain:\ x-5\neq0\to x\neq5\\\\\dfrac{2}{x-5}=4x\\\\\dfrac{2}{x-5}=\dfrac{4x}{1}\qquad\text{cross multiply}\\\\(4x)(x-5)=(2)(1)\qquad\text{use the distributive property}\\\\(4x)(x)+(4x)(-5)=2\\\\4x^2-20x=2\\\\2^2x^2-20x=2\\\\(2x)^2-2(2x)(5)=2\qquad\text{add}\ 5^2\ \text{to both sides}\\\\(2x)^2-2(2x)(5)+5^2=2+5^2\qquad\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\(2x-5)^2=2+25\\\\(2x-5)^2=27\to2x-5=\pm\sqrt{27}\qquad\text{add 5 to both sides}[/tex]
[tex]2x=5\pm\sqrt{9\cdot3}\qquad\text{use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\\\2x=5\pm\sqrt9\cdot\sqrt3\\\\2x=5\pm3\sqrt3\qquad\text{divide both sides by 2}\\\\x=\dfrac{5\pm3\sqrt3}{2}[/tex]
Oliver plans to purchase a $1,500 certificate of deposit (CD) at his bank. The CD will earn 2.3% interest, compounded semi-annually.
Write an exponential expression in the form a(b)c, where b is a single value, to find the value of the CD, in dollars, after t years. Round any decimals to the nearest ten-thousandth. Do not include dollar signs or percent symbols in the expression.
Answer:
1500(1.0115)^(2t)
Step-by-step explanation:
The formula for the balance in an account earning compound interest is ...
A = P(1 +r/n)^(nt)
where P is the principal invested, r is the annual rate, n is the number of times per year interest is compounded, and t is the number of years.
__
Using the given values in the formula, we have ...
A = 1500(1 +0.023/2)^(2t)
Simplifying a bit, this is ...
A = 1500(1.0115)^(2t) . . . . . CD value after t years
3 + 4x - 11 = -32
What does x equal?
Add/subtract common factors.
3 - 11 + 4x = -32
-8 + 4x = -32
4x = -32 + 8
4x = -24
Then, isolate the x by using division/multiplication. But for this problem, use division.
x = -24 / 4
x = -6
What is 5n+6+12n simplified? Help
The answer would be 17n+6.
Answer:
17n+6
Step-by-step explanation:
you add 5n and 12n and get 17n and you can't add 6 to 17n so your answer is 17n+6
What are the zeros of the function? f(x)=x3+4x2−12x
Set the function equal to 0 and solve for
x=0,2,-6
Answer:
The solutions are:
[tex]x= 0[/tex] and [tex]x= 2[/tex] and [tex]x = -6[/tex]
Step-by-step explanation:
1) Make the function equal to zero
[tex]f(x)=x^3+4x^2-12x = 0[/tex]
2) Take x as a common factor
[tex]x(x^2+4x-12) = 0[/tex]
3) Factor the expression [tex]x^2+4x-12[/tex]
The sought-after factors are such numbers that when multiplying them obtain as result -12 and when adding both numbers obtain as result 4.
The numbers that meet this condition are
6 and -2
Because
[tex]6*(-2) = -12\\\\6 -2 = 4[/tex]
Then the factors are
[tex]x^2+4x-12=(x-2)(x+6)[/tex]
4) Solve the equation for x
[tex]x(x-2)(x+6) = 0[/tex]
The solutions are:
[tex]x= 0[/tex] and [tex]x= 2[/tex] and [tex]x = -6[/tex]
Complete the square to solve the equation below.
X^2 +x=11/4
Answer:
The solutions of the equation are √3 - 1/2 and -√3 - 1/2
Step-by-step explanation:
* Lets revise how to make the completing square
- The form of the completing square is (x - h)² + k, where h , k
are constant
- The general form of the quadratic is x² + bx + c, where b , c
are constant
- To change the general form to the completing square form equate
them and find the constant h , k
* Now lets solve the problem
∵ x² + x = 11/4 ⇒ subtract 11/4 from both sides
∴ x² + x - 11/4 = 0
- Put the equation equal the form of the completing square
∵ x² + x - 11/4 = (x - h)² + k ⇒ solve the bracket power 2
∴ x² + x - 11/4 = x² - 2hx + h² + k
- Equate the like terms
∵ x = -2hx ⇒ divide both sides by x
∴ 1 = -2h ⇒ divide both sides by -2
∴ -1/2 = h
∴ the value of h = -1/2
∵ -11/4 = h² + k
- Substitute the value of h
∴ -11/4 = (-1/2)² + k
∴ -11/4 = 1/4 + k ⇒ subtract 1/4 from both sides
∴ -12/4 = k
∴ k = -3
∴ The value of k is -3
- Substitute the value of h and k in the completing square form
∴ (x - -1/2)² + (-3) = 0
∴ (x + 1/2)² - 3 = 0 ⇒ add 3 to both sides
∴ (x + 1/2)² = 3 ⇒ take square root for both sides
∴ x + 1/2 = √3 OR x + 1/2 = -√3
∵ x + 1/2 = √3 ⇒ subtract 1/2 from both sides
∴ x = √3 - 1/2
OR
∵ x + 1/2 = -√3 ⇒ subtract 1/2 from both sides
∴ x = -√3 - 1/2
* The solutions of the equation are √3 - 1/2 and -√3 - 1/2
absolute value to show the distance between -60 and 13
Answer:
73Step-by-step explanation:
The Ruler Postulate:
A distance between a number A and a number B:
AB = |B - A|
We have A = -60, and B = 13. Substitute:
|13 - (-60)| = |13 + 60| = |73| = 73
18,000 amounts to 21,600 in 4 years at simple interest. Find the sum of
money that will amount to 25,500 in 5 years, at the same rate of interest.
Answer:
[tex]\$20,400[/tex]
Step-by-step explanation:
we know that
The simple interest formula is equal to
[tex]A=P(1+rt)[/tex]
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest
t is Number of Time Periods
step 1
Find the rate of interest
in this problem we have
[tex]t=4\ years\\ P=\$18,000\\ A=\$21,600\\r=?[/tex]
substitute in the formula above and solve for r
[tex]\$21,600=\$18,000(1+4r)[/tex]
[tex]1.2=(1+4r)[/tex]
[tex]4r=1.2-1[/tex]
[tex]r=0.2/4=0.05[/tex]
The rate of interest is [tex]5\%[/tex]
step 2
Find the sum of money that will amount to 25,500 in 5 years, at the same rate of interest
in this part we have
[tex]t=5\ years\\ P=?\\ A=\$25,500\\r=0.05[/tex]
substitute in the formula above and solve for P
[tex]\$25,500=P(1+0.05*5)[/tex]
[tex]P=\$25,500/(1.25)=\$20,400[/tex]
ASAP!! Graph the function. f(x)=−15x+4 Use the Line tool and select two points to graph.
To graph the function f(x) = -15x + 4, plot the points (0,4) and (1,-11) on the graph. The slope of the line is -15 and the y-intercept is 4.
Explanation:To graph the equation f(x) = -15x + 4, you need to plot two points on a graph then draw a line through those points. First, plug in value x = 0 into the equation, you get f(0) = -15*(0) + 4 = 4. So, one point is (0,4). Second, let's plug another x value, for example, x = 1, into the function. Hence, f(1) = -15*(1) + 4 = -11, giving you the second point (1,-11).
Also remember that this is a linear function and you'll see that it forms a straight line when graphed. The slope of the line is -15, which means the line will fall to the right. The y-intercept of the line is 4, which is the point where the line crosses the y-axis.
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The graph of f(x) = -15x + 4 is a line with a slope of -15 and a y-intercept of 4. Connecting points (0, 4) and (1, -11) depicts the downward-sloping trend.
To graph the linear function f(x) = -15x + 4, we can use the slope-intercept form y = mx + b, where m is the slope and b is the y-intercept. In this case, the slope (m) is -15, and the y-intercept (b) is 4.
To create the graph, we choose two points and connect them with a line. Let's select x = 0 and x = 1 to find the corresponding y-values.
For x = 0: y = -15(0) + 4 = 4. So, the point (0, 4) is on the graph.
For x = 1: y = -15(1) + 4 = -11. The point (1, -11) is on the graph.
Now, we can use these two points to draw the line on the coordinate plane. The line will have a negative slope, indicating a downward trend, and it intersects the y-axis at 4.
In summary, the graph of f(x) = -15x + 4 is a downward-sloping line that passes through the point (0, 4) and (1, -11).
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Solve x 2 - 4x - 7 = 0 by completing the square. What are the solutions?
Answer:
The solutions are [tex]x=2(+/-)\sqrt{11}[/tex]
Step-by-step explanation:
we have
[tex]x^{2}-4x-7=0[/tex]
Group terms that contain the same variable, and move the constant to the opposite side of the equation
[tex]x^{2}-4x=7[/tex]
Complete the square. Remember to balance the equation by adding the same constants to each side
[tex]x^{2}-4x+4=7+4[/tex]
[tex]x^{2}-4x+4=11[/tex]
Rewrite as perfect squares
[tex](x-2)^{2}=11[/tex]
Take square root both sides
[tex]x-2=(+/-)\sqrt{11}[/tex]
[tex]x=2(+/-)\sqrt{11}[/tex]
What is an expression for 2 less than s
Answer:
2 < s
Step-by-step explanation:
We need to write expression for 2 less than s
The expression 2 less than s is equal to:
2 < s
The symbol < is used for less than.
find the area of the figure 11.2 in 6.7 in
Without more information on the shape, it's not possible to provide the area of the figure from just the provided dimensions. Assuming it's a rectangle and using significant figures, the example calculation yields an area of 4.1 cm² when multiplying 0.6238 cm by 6.6 cm and rounding to two significant figures.
Explanation:To find the area of a figure with given dimensions, one would typically multiply the length by the width. However, the question provided seems to be missing specific details about the shape of the figure. Given the figure's dimensions, if we assume it is a rectangle, the calculation would be straightforward: multiply the length by the width. Unfortunately, without additional information about the exact shape or context provided by equations or a figure reference, it is not possible to provide an accurate answer. It's essential to verify the shape and relevant equations before proceeding with the area calculation.
However, based on the examples given, to calculate the area with significant figures, one must consider the number of significant figures in the given dimensions. For example, if we multiply 0.6238 cm by 6.6 cm, the result is 4.11708 cm², which we round to 4.1 cm² (to two significant figures) because we are multiplying a number with four significant figures by a number with two significant figures.
which is expression is equivalent to 6^4 • 6^3?
Answer:
C) (6x6x6x6)x(6x6x6)
Step-by-step explanation:
an exponent is the base multiplied by itself that many times, and another way to write 2 exponents multiplied by each other (and have the same base) is by simply adding the exponents, for example, 6^4x6^3 is 6^7 :D Hope this helps!
Answer:
The answer is C :)
Step-by-step explanation:
What is the missing information in the paragraph proof?
inscribed angle
polygon interior angle sum
quadrilateral angle sum
angle bisector
Answer:
Inscribed angle
Step-by-step explanation:
the tennis team won 8 matches and lost 4 what is the ratio of wins to the total number of matches played
Answer:
8:12, which reduces to 2:3
Step-by-step explanation:
The tennis team played 12 total matches if they won 8 and lost 4. (8+4=12). They're asking for ratio of wins to total matches. They won 8 and played twelve in total so: 8:12. Ratios are like fractions and must be reduced. So it's 2:3.
Answer:
The ratio of wins of the total number of matches played is 2/3
Step-by-step explanation:
A tennis team won 8 matches and lost 4 which means that the tennis team have played 12 matches in total.
So, the ratio of wins to the total numbers of matches played is:
Ratio of wins = won matches/total matches
Ratio of wins = 8/12 = 2/3
Quadratic equations and factoring
8x^2 +10x+3=0
Answer: X= -3/4, -1/2
Step-by-step explanation:
Simplify √25. please answer
Your answer is 5! (:
Answer:
5
Step-by-step explanation:
A square root of a number n is a number r such that r2=n. in the case 25 we find that 52=25 , so 5 is a square root of 25. sorry if this is confusing. found this from google.
(3 + 5) * 2Y = (5 * 8) - (2 * 4)
Answer:
Y = 2
Step-by-step explanation:
Solve for Y:
(3 + 5)×2 Y = 5×8 - 2×4
3 + 5 = 8:
8×2 Y = 5×8 - 2×4
5×8 = 40:
8×2 Y = 40 - 2×4
-2×4 = -8:
8×2 Y = -8 + 40
8×2 = 16:
16 Y = 40 - 8
40 - 8 = 32:
16 Y = 32
Divide both sides of 16 Y = 32 by 16:
(16 Y)/16 = 32/16
16/16 = 1:
Y = 32/16
The gcd of 32 and 16 is 16, so 32/16 = (16×2)/(16×1) = 16/16×2 = 2:
Answer: Y = 2
the endpoints of the double arrow are congruent triangles. what is the area of the figure.
Answer:
The area of the figure is [tex]56\ cm^{2}[/tex]
Step-by-step explanation:
we know that
The area of the figure is equal to the area of two triangles plus the area of rectangle
so
[tex]A=2[\frac{1}{2}(b)(h)]+(L)(W)[/tex]
we have
[tex]b=1+4+1=6\ cm[/tex] ----> the base of triangle
[tex]h=2\ cm[/tex] ---> the height of triangle
[tex]L=11\ cm[/tex] ----> the length of rectangle
[tex]W=4\ cm[/tex] ----> the width of rectangle
substitute
[tex]A=2[\frac{1}{2}(6)(2)]+(11)(4)[/tex]
[tex]A=56\ cm^{2}[/tex]
The price of a ring was increased by 30% to £325. What was the price before the increase?
Divide the new price by 1 + percent of increase:
325 / 1.30 = 250
The original price was £250
how do you do this - with work - using pythagorean identities?
Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identities
• 1 + tan²x = sec²x
• cot x = [tex]\frac{1}{tanx}[/tex]
Given
secΘ = [tex]\frac{4}{3}[/tex], then
tan²Θ = sec²Θ - 1 = ([tex]\frac{4}{3}[/tex] )² - 1 = [tex]\frac{16}{9}[/tex] - 1 = [tex]\frac{7}{9}[/tex], hence
tanΘ = ± [tex]\sqrt{\frac{7}{9} }[/tex] = ± [tex]\frac{\sqrt{7} }{3}[/tex]
Since 270° < Θ < 360° ← fourth quadrant where tanΘ < 0
Hence tanΘ = - [tex]\frac{\sqrt{7} }{3}[/tex]
and
cotΘ = [tex]\frac{1}{-\frac{\sqrt{7} }{3} }[/tex] = - [tex]\frac{3}{\sqrt{7} }[/tex] = - [tex]\frac{3\sqrt{7} }{7}[/tex]
Joe’s department store sells pens for 60 cents each and pencils for 40 cents each. Diane purchased a total of 17 items (pens and pencils) for $8.20. How many pens did Diane purchase?
Answer:
Diane purchased 7 pens
Step-by-step explanation:
Let
x----> the number of pens
y----> the number of pencils
we know that
x+y=17
y=17-x -----> equation A
0.60x+0.40y=8.20 -----> equation B
Solve the system of equations by substitution
Substitute equation A in equation B and solve for x
0.60x+0.40(17-x)=8.20
0.60x+6.8-0.40x=8.20
0.20x=8.20 -6.8
x=1.4/0.2=7 pens
Answer: The number of pen purchased by Diane is 7.
Step-by-step explanation: Given that Joe’s department store sells pens for 60 cents each and pencils for 40 cents each.
Diane purchased a total of 17 items for $8.20.
We are to find the number of pen that Diane purchased.
We know that
1 cent = $ 0.01.
Let x and y represents the number of pen and pencils that Diane purchased.
Then, according to the given information, we have
[tex]60\times0.01x+40\times 0.01y=8.20\\\\\Rightarrow 0.6x+0.4y=8.20\\\\\Rightarrow 6x+4y=82~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)[/tex]
and
[tex]x+y=17\\\\\Rightarrow y=17-x~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(ii)[/tex]
Substituting the value of y from equation (ii) in equation (i), we get
[tex]6x+4y=82\\\\\Rightarrow 6x+4(17-x)=82\\\\\Rightarrow 6x+68-4x=82\\\\\Rightarrow 2x=82-68\\\\\Rightarrow 2x=14\\\\\Rightarrow x=\dfrac{14}{2}\\\\\Rightarrow x=7.[/tex]
Thus, the number of pen purchased by Diane is 7.
Which graph has a slope of 13?
The top right graph has a slope of 1/3
Answer:
top right
Step-by-step explanation: