Answer:
exponential
Step-by-step explanation:
It is exponential because the variable is in the exponent
Use the inverse matrix to solve this system of equations:
An inverse matrix is drawn from the concept of reciprocity in which the product of a number and its reciprocal will sum up to one (1). Note that an identity matrix is equal to the product of a square matrix and its inverse.
What other kinds of matrixes are there?In mathematics you have the following types of matrices:
Column matrixNull MatrixSquare MatrixRow MatrixLower Triangular Matrix etc.It is to be noted that the information required to solve the equation is incomplete hence the general answer.
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The scale factor for ΔABC to ΔMNL is:
Answer:
2
Step-by-step explanation:
The scale factor shows the proportion of a number to another one
The side lengths for triangle ABC: 12-4-2
The side lengths for triangle LMN: 6-2-1
if we write them as fractions
12/6 = 2
4/2 = 2
2/1 = 2 so the answer is in third option.
I need help with this geometry problem.
Answer:
m<1 = 48 m<2=12.6 m<3= 48
Step-by-step explanation:
96 ÷ 2 =48
38÷3= 12.6
48
The equation of the trend line is y = -0.36x + 12.6 use the equation to of the trend line to predict the wind chill for a wind speed of 23 mi/h round your answer to the nearest degree. The wind chill at 23 mi/h
Answer:
4°C
Explanation:
Equation: y = -0.36x + 12.6
To find wind chill at 23 mi/hInsert x = 23Simplify
y = -0.36(23)+12.6
y = 4.32°C
y = 4°C (rounded to nearest degree)
Hank has 6 black pens, 4 red pens, and 14 pencils in his desk drawer.
If he reaches into his desk drawer and randomly selects something to write with, what is the probability that he will grab a pen?
The diameter of a volleyball is 8.4 in. what is the approximate volume of the volleyball? a. 222 in.3 b. 233 in.3 c. 296 in.3 d. 310 in.3
Answer:
C.
Step-by-step explanation:
According to the volume equation of a sphere (V=4/3πr³)
8.4/2 equals a radius of 4.2, which when cubed equals 74.088 (base area). You then multiply your base area by the numerator of 4/3, giving you 296 when rounded or 296.352 when not rounded. Giving you the answer of C.
the graph of y=x^3+x^2-6x is shown estimate the x coordinates of the turning point of the graph,
(a). From the graph the x estimates of the turning points are
-1.8 and 1.1.
(b). The solutions are where the graph crosses the x axis .. They are:
x = -3, 0 and 2.
What is polynomial?A polynomial is defined as the sum of the same variables having different powers.
Here we have the two third-degree polynomials
x³+x²-6x=0
For this the value of the variable at the turning point of the graph will be
at x=-1.8 and 1.1.
The another equation is :-
x³+x²-6x=0
The solution of the equation will be x = -3, 0 and 2. where the graph crosses the x-axis.
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PLEASE HELP ME ON THIS ONE
Answer:
8m
Step-by-step explanation:
Find the volume of the sphere first :
V sphere = [tex]\frac{4}{3}[/tex] π 6^3 = 902.51
Then use the volume of the sphere to find the height :
Formula = V/π[tex]r^{2}[/tex]
902.51/π(6)^2 = 8.004 (rounded is 8)
hope this helped :)
Answer:
8 m
Step-by-step explanation:
Given,
Volume of sphere = Volume of cylinder
Radius ( r ) = 6 m
Formula : -
Volume of sphere = 4/3 πr³
Note : -
The value of π is 3.14
Volume of sphere
= 4/3 x 3.14 x 6³
= 4/3 x 3.14 x 6 x 6 x 6
= 904.32 m³
Hence,
The volume of sphere is 904.32 m³.
Since,
Volume of sphere = Volume of cylinder
So,
Volume of cylinder = 904.32 m³
Formula : -
Volume of cylinder = πr²h
πr²h = 904.32
3.14 x 6 x 6 x h = 904.32
113.04 x h = 904.32
Divide 113.04 on both sides,
h = 904.32 / 113.04
h = 8 m
Melvin plays tennis and swims for a total of 110 minutes every day. He plays tennis for 40 minutes longer than he swims. Part A: Write a pair of linear equations to show the relationship between the number of minutes Melvin plays tennis (x) and the number of minutes he swims (y) every day. (5 points) Part B: How much time does Melvin spend swimming every day? Show your work. (3 points) Part C: Is it possible for Melvin to have spent 70 minutes playing tennis if he plays and swims for a total of exactly 110 minutes and plays tennis for 40 minutes longer than he swims? Explain your reasoning. (2 points)
Answer:
See below
Step-by-step explanation:
Part A:
⇒ Y represents the amount of swimming
⇒ X represents the amount of tennis
Now, creating to equations:
y + 40 = xx + y = 110Part B:
⇒ First equation is substituted for X in the other equation.
Gives us the plug in:
y + 40 + y = 1102y = 70⇒ Y = 35 minutes of swimming
⇒ Adding :
35 + 40 = 75 minutes of swimming per day.
Part C:
No, due to the equation ⇒ 70 + (70 - 40) = 100
Therefore, making this statement impossible.
R is the 4th quadrant region enclosed by the x-axis and the curve y = x^2 - 2kx, where k>0. find the value of k so that the area of the region r is 36 square units.
a. 2
b. 3
c. 4
d. 6
will vote brainliest, like, and rate!
Observe that
y = x² - 2kx = x (x - 2k)
has roots at x = 0 and x = 2k. Since the leading coefficient is 1 > 0, the parabola opens upward, and in particular this means the x-axis lies above the curve.
We can compute the area of R by integrating:
[tex]\displaystyle \int_0^{2k} |x^2-2kx| \, dx = - \int_0^{2k} (x^2-2kx) \, dx \\\\ = kx^2 -\frac{x^3}3 \bigg|_{0}^{2k} \\\\ = \frac{4k^3}3[/tex]
Solve for k :
[tex]\dfrac{4k^3}3 = 36 \implies k^3 = 27 \implies \boxed{k=3} ~~~~ (B)[/tex]
The coordinates of the vertices of a triangle are A(-1, 2), B(3, 1), and C(-3, -2). The coordinates of the vertices of its image are A'(3, -2), B(7, -3), and C'(1, -6). What transformations would result in this image?
Δ ABC was translated up 4 units and left 4 units.
Δ ABC was translated left 4 units and down 4 units.
Δ ABC was translated up 4 units and right 4 units.
Δ ABC was translated right 4 units and down 4 units.
Best answer gets brainliest!
Answer:
the answer is ABC was translated right 4 units and down 4 units. hope this helped
What is the sum of the angles in the image?
50°
66°
86°
76°
Answer: Choice D) 76
Explanation:
"Sum" means we add the numbers
63+13 = 76
Answer:
D
Step-by-step explanation:
63+13= 76 because sum is add :)
Need to be sure. The area of a circle is 9409pi square centimeters. Find the length of the radius. Round to the nearest whole number. I wrote the answer down but I'm not sure if I did it right.
Hi Student!
Looking at the question, lets extract the important values and information that we believe will be important for this problem. First of all, we are given the area of a circle which is 9409π and we are told to find the radius (rounding it to the nearest whole number).
Now that we have gathered our information, we can move onto the part of solving for the unknown using the area of a circle formula. We can do this by just plugging in the information that we have and solving for r which is the radius.
Plug in the values
[tex]A = \pi\ *\ r^2[/tex][tex]9409\pi\ cm^2= \pi\ *\ r^2[/tex]Divide both sides by pi to get r^2 by itself
[tex]\frac{9409\pi\ cm^2}{\pi}= \frac{\pi\ *\ r^2}{\pi}[/tex][tex]9409\ cm^2= \ r^2}[/tex]Square root both sides to get down to just r
[tex]\sqrt{9409\ cm^2}= \sqrt{\ r^2}[/tex][tex]97\ cm= r[/tex]Therefore, our final answer is that the length of the radius is 97 centimeters which we were able to find using the area and the area of a circle formula.
help I don't know what to put on it
Answer:
377.2 cm³
Step-by-step explanation:
Applied Formula :
Volume (cylinder) = πr²h
============================================================
Given :
⇒ r = 3.1 cm
⇒ h = 12.5 cm
=============================================================
Solving :
⇒ V = 3.14 x 3.1 x 3.1 x 12.5
⇒ V = 9.734 x 38.75
⇒ V = 377.2 cm³ (nearest tenth)
Volume
V=πr²h
π(3.1)²(12.5)3.14(3.1)²(12.5)377.2cm³Done!
Cristiano ronaldo has a pass success percentage of 86% in the uefa champions league. this measure
summarizes the percentage of passess ronaldo successfully made to his teammates instead of being
intercepted by the opponent. ronaldo's coach has a strategy that in an indirect free kick, ronaldo makes
2 passess before shooting for the goal.
assuming ronaldo's passess are independent, what is the probability ronaldo successfully makes both
passes in the first indirect free kick opportunity during the next game?
Answer:
74%.
Step-by-step explanation:
As the passes are independent we multiply the individual probabilities:
The Required probability
= 0.86 * 0.86
= 0.7396
- close to 74%.
The radius of a circle is 10 m. find its area to the nearest whole number.
[tex]\rule{200}{1}\\\dashrightarrow\large\textsf{\textbf{\underline{Given question:-}}}[/tex]
The radius of a circle is 10 m. Find its area to the nearest whole number.
[tex]\dashrightarrow\large\textsf{\textbf{\underline{Answer and how to solve:-}}}[/tex]
We're asked to find the area of the circle, which we can find using the following formula:-
[tex]\bold{Area_{(circle)}=\pi r^2}[/tex]
Where:-
π = pi [3.14...]r=radius (10 m)What we need to do to find the area:-[tex]\dagger[/tex] Substitute 10 for r and 3.14 for π:-
[tex]\hookrightarrow\sf{A=3.14\times(10^2)}[/tex]
[tex]\bigstar[/tex] On simplification,
[tex]\bold{A=3.14\times100}[/tex]
[tex]\bigstar[/tex] On further simplification,
[tex]\bold{A=314}[/tex]
[tex]\bigstar[/tex] The Area is:-
[tex]\bold{A=314\:m^2}[/tex]
[tex]\square\!\!\!\!\!\!\bigstar[/tex] Note:- Area is always measured in units² (units squared)
Good luck with your studies.[tex]\rule{300}{3}[/tex]
Can the sides of a triangle have lengths 3, 4, and 19?
Is anyone free to help?
Answer:
-4 C (Negative 4 C)
Step-by-step explanation:
If its 20 C less in Moscow, then it must be 16-20 = - 4 C in Moscow.
Look up rules on subtracting large numbers from small numbers to understand how I got - 4.
answer the question
Answer:
A. 20.5
Step-by-step explanation:
The measure of an inscribed angle is half the measure of the intercepted arc. For example, If the intercepted arc is 11 then the Inscribed angle is 1/2 or 5.5! hope this helps ya!
Type the correct answer in each box. use numerals instead of words. consider the quadratic equation x2 10x 27 = 0. completing the square leads to the equivalent equation (x )2 = .
The equivalent equation using the completing the square method is (x+5)² = -2
Completing the square method.Quadratic equations are equation that has a degree of 2. Given the equations expressed as:
x^2+10x+27 = 0
Subtract 27 from both sides
x^2+10x = -27
Complete the squares
x^2+10x = -27
x^2+10x + 5^2= -27 + 25
(x+5)² = -2
Hence the equivalent equation using the completing the square method is (x+5)² = -2
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A rectangular garden has an area of 144 ft². If the base is 8 ft long, what is the height?
18 ft
36 ft
64 ft
72 ft
Answer:
The Answer is 18
Hope this helps! :)
Step-by-step explanation:
A box has a length of 5 feet, width of 4 feet, be a height of 8 inches. what is the volume of the box in cubic inches
Answer:
160in³
Step-by-step explanation:
V = lwh
V = 5(4)(8)
V = 40(4)
V = 160in³
A recipe calls for One-fourth cup of broth. The largest volume-measuring tool that Tabitha has is a teaspoon. She knows that there are 16 tablespoons in 1 cup and 3 teaspoons in 1 tablespoon. How many teaspoons of broth should she use?
1 and one-third teaspoons
12 teaspoons
19 teaspoons
21 and one-third teaspoons
Answer:
12 teaspoons
Step-by-step explanation:
Students arrive randomly at the help desk of the computer lab. There is only one service agent, and the time required for inquiry varies from student to student. Arrival rates have been found to follow the Poisson distribution, and the service times follow the negative exponential distribution. The average arrival rate is 10 students per hour, and the average service rate is 20 students per hour. A student has just entered the system. How long is she expected to stay in the system (in minutes)?
The amount of time that she is expected to stay in the system is; 7.5 Minutes
How to find the average of Exponential Functions?We are given;
The average number of arrivals of customers, λ = 12 students/hour.
The average service rate of a single server; μ = 20 students/hour.
The average of an exponential distribution is given by the formula:
E(X) = 1/μ
However, the amount of time that she is expected to stay in the system is;
t = 1/(μ - λ)
t = 1/(20 - 12)
t = 0.125 hours
Converting to minutes gives;
t = 0.125 * 60
t = 7.5 minutes
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Shirley has a collection of 50 stamps and adds 4 stamps daily to her collection. model this situation as a function of number of days (d).
VW has a midpoint at M(12, 0.5). Point V is at (10, -18). Find the coordinates of point W. Write the coordinates as decimals or integers.
[tex]~~~~~~~~~~~~\textit{middle point of 2 points } \\\\ V(\stackrel{x_1}{10}~,~\stackrel{y_1}{-18})\qquad W(\stackrel{x_2}{x}~,~\stackrel{y_2}{y}) \qquad \left(\cfrac{ x_2 + x_1}{2}~~~ ,~~~ \cfrac{ y_2 + y_1}{2} \right) \\\\\\ \left(\cfrac{ x +10}{2}~~~ ,~~~ \cfrac{ y -18}{2} \right)~~ = ~~\stackrel{M}{(12~~,~~0.5)} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{ x +10}{2}=12\implies x+10=24\implies \boxed{x=14} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{ y -18}{2}=0.5\implies y-18=1\implies \boxed{y=19}[/tex]
Joe has a bag with 10 pink marbles and 20 silver marbles. If he draws a marble from the bag without looking, what is the probability that it will be a pink marble?
The probability is the ratio of the favorable outcome to the total number of outcomes. Then the probability of a pink marble is 33.33%.
What is probability?Its simple notion is that something will most likely occur. The favorable event's proportion to the overall number of occurrences.
Joe has a bag with 10 pink marbles and 20 silver marbles.
If he draws a marble from the bag without looking.
Then the probability that it will be a pink marble.
The total number of the event will be
Total event = 20 + 10
Total event = 30
Favorable event = 10
Then the probability will be
P = 10 /30
P = 1/3
P = 0.3333
P = 33.33%
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I need help for this one.
Answer:
5
Step-by-step explanation:
When you are looking for a pattern, look at one of the examples, makeup the pattern, then check it on the other examples.
Wrong answers may work on one, but not all the completed examples.
The right answer will work on all of the examples, then use that rule on the incomplete one.
So, I looked at the second one in the top row. The two bottom numbers, 5 + 13 makes 18. And 18÷3 (the top number, gives the center number) Check on other examples.
bottom + bottom=_
_÷top=center.
8+4=12, 12÷3 =4.
9+5=14, 14÷2=7
Both of these work.
So use the rule for the last one.
Add the bottom numbers, divide by the top number, fill it in the middle.
14+6=20
20÷4=5
Fill in 5.
The price of a train ticket from Kansas City to Lexington is normally $110.00. However, the train company is offering a special 25% discount to children under 16. What is the sale price of a ticket from Kansas City to Lexington for someone under the age of 16?
Answer:
$82.50
Step-by-step explanation:
25% of $110.00 is $27.5, which means 110.0 - 27.5 is equal to = 82.50.
Answer:82.50
Step-by-step explanation:
A cone has a volume of 471cm. If the radius of the cone's base is 5cm what is the height of the
cone? (Round to the tenths place.)
(use 3.14)
Answer: the height is 18 cm.
Step-by-step explanation:
The equation for the volume of a cone is the following: V = 1/3 × B × h, where B (base) = πr². Because we are given the radius of the base, but not the base’s area itself, we will use V = 1/3πr²h.
Here, we are trying to solve for h, the height, so first we can first rearrange the equation to solve for h:
1) V = 1/3πr²h
2) h = V ÷ 1/3πr² (divide both sides by 1/3πr²h)
Now, we just need to input the given values: V = 471, π = 3.14, r = 5
h = 471 ÷ 1/3(3.14)(5²)
= 471 ÷ 1/3(3.14)(25)
= 471 ÷ 1/3(78.5)
= 471 ÷ (78.5/3)
= 18 cm