Answer:
A
Step-by-step explanation:
A. $329.04
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Which expression shows the amount would you pay if your lunch bill is X and you leave(pay) a 15% tip?
a) x - 0.15x
b) x + 0.15x
c) 1.15x - x
d) 2.15x
Answer:
Step-by-step explanation:
(b) is correct. x represents the bill and 0.15 represents the 15% tip on that bill.
A 16-cup container of laundry detergent costs $13.60. What is the price per quart?
Answer:
$0.21
Step-by-step explanation:
So, first let's find the cost of a single cup.
16/13.60 = 1/0.85
Now, we know that each cup is approximately $0.85. Next, we must convert cups into quarts. 1 cup = 0.25 quarts.
1/0.85 = 0.25/0.21
A wind turbine has three equally spaced blades that are each 131 feet long. What is the measure of the arc between any two blades?
Answer:
274.23 feet
Step-by-step explanation:
From the question,
The measure of the arc between any two blades (s) = 2πrΦ/360
s = 2πrΦ/360................... Equation 1
Where Ф = angle formed betwen two blades, r = length of each blade.
Given: Ф = 360/3 (the three blades are equally spaced) = 120°, r = 131 feet.
Constant: π = 3.14
Substitute these values into equation 1
s = (2×3.14×131×120)/360
s = 274.23 feet.
Hence, the measure of the arc between any two blades is given = 274.23 feet
HELP PLZZZ!! (No link) .itch
nick has x toy race cars. this is one third of what bob has. how many toy cars does bob have?
Answer:
3x
Step-by-step explanation:
1/3(3x)=x
Bob has 3x toy race cars
x^2-y^2+2y+1
Factorize
Answer:
Equation is already in factor form
Step-by-step explanation:
Jerry has four jackets in his closet. Without looking, he reached into his closet, pulled out a jacket, and then put it back in the closet. What is the probability that Jerry will randomly select the same jacket a second time?
Answer:
1%
Step-by-step explanation:
.
¿es cierto que si se suman los resultados de la tabla del con los de la tabla del 5 se obtienen los resultados del 7 ¿porque
Answer:
Efectivamente, si se suman los resultados de la tabla del 2 con los de la tabla del 5 se obtienen los resultados de la tabla del 7.
Step-by-step explanation:
Esto es así porque 7 puede formarse a través de diversas sumas (7+0, 6+1, 5+2 o 4+3). Por ende, en el caso de las tablas de multiplicaciones, decir, por ejemplo, 7 x 3, es igual a decir 5 x 3 + 2 x3, dado que 5 + 2 es igual a 7.
Entonces, siguiendo el ejemplo, dado que 7 x 3 es igual a 21, la suma de 5 x 3 igual a 15 y 2 x 3 igual a 6 es 21 (15 + 6), con lo cual la afirmación es correcta.
What is the value of 4.2(46-65). A.798 b.-79.8 C.79.8 D.798. I just need the answer you don’t have to work it out
Answer:
b. -79.8.
Step-by-step explanation:
We calculate what's in the brackets first:
46 - 65
= -19
Now multiply by 4.2:
-19 * 4.2
= -79.8.
How many solutions does the system of equations below have?
y=x+2
y=x-1
A one
B two
С none
D infinitely many
Answer:
C
Step-by-step explanation:
Answer:
C: none
Step-by-step explanation:
Here we have two separate functions named 'y.' Eliminate 'y' temporarily by equating these functions together:
x + 2 = y = x - 1
Subtracting x from both sides, we get:
0 + 2 = y = 0 - 1, or
2 = -1
This is never true, so C is the correct answer: NO solutions.
An easier way in which to do this problem is to visualize the graphs of
y = x + 2 and y = x - 1. The graphs are parallel straight lines; they never intersect, and therefore we can conclude "no solution."
Show that f(x) = x^2 and g(x) = 1000x^2 grow at the same rate.
Answer:
You do not use the first derivative to find the rate you need to take the limit ratio as x approaches positive infinity. We use positive and not negative infinity because our function is increasing and not decreasing. The ratio ends up being 1/1000 meaning that this a finite non zero number. Which proves that they grow at the same rate
Step-by-step explanation:
The lengths of a certain species of fish are approximately normally distributed with a given mean ll and standard
deviation. According to the Empirical Rule, what percentage of the fish will have lengths within 1 standard deviation
of the mean?
-34%
-47.5%
-68%
-99.7%
The percentage of fish which will have the lengths within 1 standard deviation of the mean is 68%.
What is Empirical Rule?Empirical rule is a rule for normally distributed data which defines that almost all the data observed ranges between three standard deviations from the mean.
According to empirical rule,
68% of the data lies in the standard deviation of ±1.
95% of the data lies in the standard deviation of ±2.
99.7% of the data lies in the standard deviation of ±3.
Given,
The lengths of a certain species of fish are approximately normally distributed with a given mean and standard deviation.
According to the Empirical Rule, 68% of the fish will have lengths within 1 standard deviation of the mean.
Hence the required percentage is 68%.
Learn more about Empirical Rule here :
https://brainly.com/question/30700783
#SPJ5
Daniella flipped a coin and spun a spinner that is divided into four equal-size sectors colored red, yellow, green, and orange. Write the sample space of all the possible outcomes.
here are 8 different possible outcomes in the sample space. There are 2 outcomes for the coins, heads and tails. And 4 colors for the spinner.
If you put them together, you have:
H - R
H - G
H - Y
H - O
T - T
T - G
T - Y
T - O
Use Euler's Formula to find the missing number.
Edges: 29
Faces: 17
Vertices: ?
13
14
15
17
Answer:
The answer is 14
Step-by-step explanation:
I just took the test and got it right
Select all the expressions equivalent to: (4^5)⋅4^3 Group of answer choice 2^14 4^12 2^16 16^8 4^8 16^4
Answer:
Choices given as [tex]2^{16}, 4^8[/tex] and [tex]16^4[/tex] are correct.
Step-by-step explanation:
Given expression is,
[tex](4^5)(4^3)[/tex]
By applying law of exponents in the given expression,
[tex](4^5)(4^3)=4^{5+3}[/tex]
[tex]=4^8[/tex]
[tex](4^5)(4^3)=(2^2)^5(2^2)^3[/tex]
[tex]=(2^{2\times 5})(2^{2\times 3})[/tex]
[tex]=2^{10}\times 2^6[/tex]
[tex]=2^{16}[/tex]
[tex]=(2^4)^4[/tex]
[tex]=(16)^4[/tex]
Therefore, choices given as [tex]2^{16}, 4^8[/tex] and [tex]16^4[/tex] are correct.
What is the value of X
enter your answer in the
box X=
Answer:
What is the value of X I would say it is 52
Solve triangle PQR. Round intermediate results to 3 decimal places and final answers to 1 decimal place.
Answer:
[tex]Q = 96.4^\circ[/tex]
[tex]R = 58.4[/tex]
[tex]P =25.2[/tex]
Step-by-step explanation:
Given
See attachment for PQR
Required
Solve the triangle
From the attached triangle, all sidea of the triangle are known.
i.e.
[tex]PQ = 6\\QR=3\\PR=7[/tex]
So, we are to solve for [tex]\angle P, Q \& R[/tex]
Using cosine rule:
[tex]a^2 = b^2 + c^2 - 2bcCosA[/tex]
To solve for Q, we have:
[tex]PR^2 = PQ^2 + QR^2 - 2 * PQ * QR Cos(Q)[/tex]
[tex]7^2 = 6^2 + 3^2 - 2 * 6 * 3 * \cos(Q)[/tex]
[tex]49 = 36 + 9 - 36 * \cos(Q)[/tex]
Collect like terms
[tex]49 - 36 - 9 = - 36 * \cos(Q)[/tex]
[tex]4 = - 36 * \cos(Q)[/tex]
Divide both sides by -36
[tex]\cos(Q) = \frac{-4}{36}[/tex]
[tex]\cos(Q) = -0.1111[/tex]
Take arc cos of both sides
[tex]Q = cos^{-1}(0.1111)[/tex]
[tex]Q = 96.4^\circ[/tex]
To solve for R, we make use of sine rule;
[tex]\frac{a}{\sin A} = \frac{b}{\sin B}[/tex]
So, we have:
[tex]\frac{PQ}{\sin R} = \frac{PR}{\sin Q}[/tex]
[tex]\frac{6}{\sin R} = \frac{7}{\sin 96.4}[/tex]
Cross multiply
[tex]\sin R * 7 = 6 * \sin 96.4[/tex]
Solve for sin R
[tex]\sin R = \frac{6 * \sin 96.4}{7}[/tex]
[tex]\sin R = \frac{6 * \0.9938}{7}[/tex]
[tex]\sin R = 0.8518[/tex]
Take arc sin of both sides
[tex]R = sin^{-1}(0.8518)[/tex]
[tex]R = 58.4[/tex]
Solving P:
[tex]P+ Q + R = 180[/tex] --- angles in a triangle
Solve for P
[tex]P =180-Q-R[/tex]
[tex]P =180-96.4-58.4[/tex]
[tex]P =25.2[/tex]
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Answer:
What are we meant to do?
To keep her grades up madeline must earn more than 80 points on her science fair project. Let p represent the number of points she could earn.
Answer:
[tex]p > 80[/tex]
Step-by-step explanation:
Given
Points = More than 80
Required [Missing from the question]
Represent as an inequality
Let p represents the number of points.
More than means greater than i.e. >
Hence, more than 80 is represented as;
[tex]p > 80[/tex]
3/3 x 1/3 will have a poduct less than 1/3/
Answer:
False
Step-by-step explanation:
3 over 3 is equal to 1. So 1 multiplied to 1 over 3 would equal 1/3.
A family went to a restaurant for dinner. The bill before tax and tip was $52.78. The sales tax is
6.5%, and the family wants to tip 18%. The tip is on the cost of the food plus tax.
What was the total cost of the meal, including tax and tip?
A
$66.33
B
$65.71
С
$62.28
D
$56.21
Answer:
B
Step-by-step explanation:
52.78×6.5%=3.43
52.78×18%=9.50
52.78+3.43+9.50=65.71
Place the following numbers in order from least to greatest.
Sandy bought a soft drink for 2 dollars and 5 candy bars. She spent a total of $12. How much did each candy bar cost?
Answer:
If Sandy bought a soft drink for 2 dollars that's 2 dollars subtracted from the total of $12.00 spent
If we have 10 dollars and bought 5 candy bars we would divide so 10 divided by 5 = 2 so each candy bar costed $2 dollars
Which is the value of this expression when m=3 and n=-5? (6m^-1 n^0)^-3
A:-8
B:-1/8
C:1/8
D:8
Answer:
The answer is C.
Step-by-step explanation:
I would simplify the expression first.
Equation: (6m^-1)^-3
You can get rid of n^0 because that equals 1.
Any expression raised to the power of -1 equals its reciprocal.
Equation: (6/m)^-3
Equation: (m/6)^3
Final Equation: m^3/216
Now, plug in 3.
(3)^3/216.
27/216 = 1/8
Hope this helps!
Angle E and angle H are supplementary. If angle E has a measure of 156 degrees, find the measure of angle H
Answer:
24 degrees
Step-by-step explanation:
Supplementary angles sum up to give 180°
E + H = 180°
156 + H = 180
H = 180 - 156
H = 24°
Frank's paper airplane glided 78.9 m. Sarah's plane glided 85 m. How many more centimeters did Sarah's plane glide? 1 m= 100 cm
Answer:
610 cm
Step-by-step explanation:
78.9 x 100 = 7890 cm 85 x 100 = 8,500 cm
8,500 - 7890 = 610 cm
A pasture with horses and goats has a width
of 1/4 mile. The length of the pasture is
represented by x + 8 . Which pair of expressions
represents the area of the pasture and uses the
distributive property to show equivalence?
Answer:
x=-31/4
Step-by-step explanation:
1/4 =x+8
Step 1: Flip the equation.
x+8=
1
4
Step 2: Subtract 8 from both sides.
x+8−8=
1
4
−8
under 50 yards how much is a touchdown worth in flag football?
Answer:
6
Step-by-step explanation:
x>5
x<5
x=5
Which is the correct one?
I'm pretty Shure it is x<5
here's something to help you-
Hope this helped :T
Answer:
x<5
Step-by-step explanation:
the arrow head pointed towards negative direction... and the unshaded circle shows that the value is less from that point...so the answer is x less than 5
find the distance between the points (-2, -10) and (3, -2)