Answer:
33
Step-by-step explanation:
Start with substituting variables j and k
3 + (2) (6) + 3(6)
= 3 + 12 + 18
= 15 + 18
= 33
Answer:
33
Step-by-step explanation:
3+ (2*6) + (6*3)
3+ 12+ 18
33
help me pleaseeeeeeeee
Answer:
-1 1/10
if you look at the calculation you can see that there is 5 lines until it reaches -1 1/2 so if it is 5 lines -1 1/2 is -1 5/10 so it -1 1/10
you currently have 225$ in your bank account you make withdrawals of 445$ and 30$ and then deposit 90$ what is the balance of the account now? Please thank you so much
Answer: -$160
Step-by-step explanation:
Start with $225
withdrawal means subtract $445
225-445 = - 220
you are now in negatives because you took more than you had
you take out another $30
-220 - 30 = -250 you are even more negative because you took out more
but you deposit, put back $90, means add
-250 +90 = -160 you are still negative because you didn't put back enough
-$160
The two dot plots below compare the forearm lengths of two groups of schoolchildren:
Based on visual inspection of the dot plots, which group appears to have the longer average forearm length? (5 points)
a
Group B, because three children in the group have the least forearm length of 11 inches
b
Group A, because three children in the group have the least forearm length of 11 inches
c
Group A, because seven children have a forearm length longer than 12 inches
d
Group B, because two children have a forearm length longer than 12 inches
Answer: B
Step-by-step explanation:looky
What are the dimensions of this matrix?
7 –8 6 –3
Answer:
-82
Step-by-step explanation:
Graph the following in cartesian plane. With solution.
1.) 5x - 4y = 20
2.) 3x + 3y = 15
3.) y = 3/4x - 2
4.) y = -3/2x + 3
pls help me I need this pls, I only need the solution, thx
Step-by-step explanation:
1.) 5x-4y=20
y=5/4x-5
5x/4-5=0
x=4
2.) 3x+3y=15
y=-x+5
x+5=0
-x=-5
=x=5
3.) y=3/4x-2
3/4x-2=0
x=0
3x4x/4 -2 x4x-0x4x
3-2x4x=0x4x
3-8x=0
8x=-3
=x=3/8
4.) y=3/2x+3
3/2x+3=0
x=0x
3x2x/2+3x2x=0x2x
3+3x2x=0x2x
3+6x=0
6x=-3
x=_3/6
=x=-1/2
Cube Roots of Negative Numbers.
Thank you!♡
Answer:The cube root of a negative number is a complex number because there is no real number that, when cubed, gives a negative result.
To find the cube root of -1, we can express it in exponential form as -1 = 1 * e^(iπ), where i is the imaginary unit and π is pi.
The cube root of -1 can be calculated by applying De Moivre's theorem, which states that (r * e^(iθ))^(1/n) = r^(1/n) * e^(iθ/n), where r is the magnitude and θ is the argument of the complex number.
For n = 3, the cube root of -1 becomes:
(-1)^(1/3) = (1 * e^(iπ))^(1/3) = 1^(1/3) * e^(iπ/3) = e^(iπ/3).
Therefore, the cube root of -1 is e^(iπ/3), which can also be expressed as cos(π/3) + i * sin(π/3).
In trigonometric form, the cube root of -1 is (√3/2) + i * (1/2).
PLSSSSS HELP QUICK IF U GIVE MEH THE CORRECT ANSWER ILL GIVE U BRAINLIEST
Answer:
(120 * 32) + 160,500
Step-by-step explanation:
Brainliest!
What is 4^15 or 4^3 x ^5??
Answer:
Step-by-step explanation
I hope this is the right answer but i'm pretty sure
4^3 x ^5=1073741824
the measure of angle ABD is 134 degrees. what is the measure of x? What angle relationship is needed to be solved?
Explanation
The angles ABD and DBC are supplementary since they form a straight line. That means they add to 180 degrees.
(angle ABD) + (angle DBC) = 180
(134) + (2x) = 180
2x = 180-134
2x = 46
x = 46/2
x = 23
Answer: x=23 and the angle relation used was supplementary angles
Step-by-step explanation:
first, you know that angle abd is 134 so you subtract that from 180 and divide it by 2 because angle cbd is 2x and you know they equal 180 because they make a straight line.
HELP! A student starts a walk at (−6, 10). If the student walks 4 miles north, south, east, or west, which of the following could be their location at the end of the walk?
A. (10, −6), (6, −6), (−2, 14), (−10, 14)
B. (4, 10), (−14, 10), (−6, −2), (−6, 6)
C. (−6, 4), (−6, 6), (−2, 10), (4, 10)
D. (−10, 10), (−2, 10), (−6, 14), (−6, 6)
Percentages
Gunpowder contains 75% nitre and 10% sulfur. Find the amount of gunpowder which carries 9 kg nitre. What amount of gunpowder would contain 2.3 kg sulfur?
Answer:
Let the amount of gunpowder that contains 9 kg nitre be x kg. ∴ The amount of gunpowder containing 9 kg nitre is 12 kg.
So, about 200 kg gunpowder
1. There are small, medium, and large shirts in blue, white, or gray. How many different possible outcomes are there?
A. 9
B. 12
C. 2
D. 3
2. Two eight-sided number cubes are rolled at the same time. How many possible outcomes are there?
A. 36
B. 18
C. 64
D. 8
3. A spinner has three sections colored green, purple, and pink. If the spinner is spun three times, how many possible outcomes are there?
A. 18
B. 9
C. 27
D. 3
4. Most phone numbers have seven digits after the area code, where each digit can be 0-9. How many different phone numbers can there be in one area code?
A. 282,475,249
B. 10,000,000
C. 4,782,969
D. 823,543
Answer:
number 2. is 64 because you have two eight-sided number cubes. so you do 8 time 8 and you get 64.
Step-by-step explanation:
Several students measured a 25-mm-long nail and wrote the measurements shown in the table below. Whose measurement had the greatest percent error? Round to the nearest percent. (I need help ASAP!! Thanks!! <3)
Answer:
Step-by-step explanation:
The decibel level of the sound of a monster truck is
Further explanation:
Decibel is defined as a unit which is used to measure the relative loudness or intensity of the sound.
In the question it is given that the intensity of the sound of a monster truck is watts per square inch.
The formula which is used to calculate the decibel level of a sound is as follows:
Here, represents the intensity of the sound of a monster truck and represents the threshold intensity of hearing at .
The value of the threshold intensity of hearing at is watts per square meter.
This implies that the valiue of is watts per square meter.
The intensity of the sound of a monster is given in unit of per square inch.
The relation between per square inch and per square meter is as follows:
So, the intensity of a monster truck is converted into per square meter as follows:
This implies that the value of is watts per square meter.
Now, substitute the value of and in the equation .
The approximated value of the above equation is as follows:
From the above calculation it is concluded that the decibel level of the sound of a monster truck is .
Learn more:
A problem to complete the square of quadratic function brainly.com/question/12992613
A problem to determine the slope intercept form of a line brainly.com/question/1473992
Inverse function brainly.com/question/1632445
Answer details
Grade: Middle school
Subject: Mathematics
Chapter: Logarithms
Keywords: Logarithms, sound, intensity, power of sound, watts, decibel, decibel level, monster truck, logarithm function, unit, conversion of unit, square inch, square meter.
How did you decide where to place your line of best fit? Describe your reasoning.
Based on your data, describe the relationship between age and the number of U.S. states a person can name in 60 seconds.
Do you see any areas in your data or points that could be considered clusters or outliers? Explain your answer in complete sentences.
Trolls will be reported
Answer:So I don’t know the other 5 points because you didn’t give the data about the age and number of US states named in 60 seconds, but using the 5coordinate points you gave, I was able to make this line of best fit.
So basically the units are counting up by 5.
The x axis is age in years and y axis is the number of US states named in 60 seconds.
Since you didn’t give me the data to make the other 5 points, I can’t really answer the last question, but from the graph that I did make, there are no points that would be considered outliers, and there are no clusters in sight.
(BTW THIS IS IMPORTANT!! - when you use the data to add the other 5 points, there might be an outlier or more then one outlier. And there might be a cluster. Just look at it after you graph the last 5 and change the answer I gave you if there is an outlier or cluster)
Step-by-step explanation:
Please help
It's due pretty soon
Answer: 89
Step-by-step explanation:
bh/2
(5.6)/2=15
13x8=104
104-15=89
Answer:
84.5
Step-by-step explanation:
Because 13x8=104 and 1/4 of the area of rectangle is 19.5 104-19.5=84.5
Please mark me brainliest
fr33 p0ints/ umm? please help me with this question
Whats the surface area? giving brainlest
Answer:
446 cm²
Step-by-step explanation:
area of cuboid (1) =
2lw + 2wh + 2hl
for cuboid (1)
length = 10cm
width = 7cm
height = 5cm
thus,
SA = 2(10)(7) + 2(7)(5) + 2(5)(10)
= 140 + 70 + 100
= 310 cm²
SA of cuboid (2) =
2lw + 2wh + 2hl
length = 4cm
width = 3cm
height = 8cm
SA of cuboid (2) = 2(4)(3) + 2(3)(8) + 2(8)(4)
= 24 + 48 + 64
= 136 cm²
total surface area of the composite figure =
SA (cuboid 1) + SA (cuboid 2)
=310 + 136
= 446 cm²
The purple rectangular prism has a length of 4 cm, a width of 3 cm, and a height of 8 cm.
The yellow rectangular prism has a length of 10 cm, a width of 7 cm, and a height of 5 cm
Step 1:Calculate the SA of the purple rectangular prism
\(A=2(wl+hl+hw)=2·(3·4+8·4+8·3)=136\)
The SA of the purple rectangular prism is 136 cm²
Step 2:Calculate the SA of the yellow rectangular prism
\(A=2(wl+hl+hw)=2·(7·10+5·10+5·7)=310\)
The SA of the yellow rectangular prism is 310 cm²
Step 3:Combine the results you got from the past 2 steps
310+136= 446 cm²
Answer:The total surface area of these two rectangular prisms is 446 cm²
I hoped this solved your question and if it did not you are free to report or to comment on my answer <333
Explain the cosine rule and sine rule while also saying how to use it and provide examples (keep it in simple terms)
Answer:
Sure, I'll explain the cosine rule and sine rule in simple terms:
The cosine rule (also known as the law of cosines) is used to find the length of a side or the measure of an angle in a triangle given the lengths of the other sides and the angle between those sides. It states that c^2 = a^2 + b^2 - 2ab cos(C), where c is the length of the side opposite angle C, and a and b are the lengths of the other two sides.
Here's an example of how to use the cosine
Suppose we have a triangle with sides a=6, b=8, and an angle between them c=45 degrees. We want to find the length of the remaining side of the triangle, side a.
Using the cosine rule:
a^2 = b^2 + c^2 - 2bc * cosA
where A is the angle opposite side a, we can plug in our values and solve for a:
a^2 = 8^2 + 6^2 - 2(8)(6) * cos(45)
a^2 = 64 + 36 - 96 * 0.707
a^2 = 10.56
a = sqrt(10.56)
a = 3.25 (rounded to two decimal places)
Therefore, the length of side a is approximately 3.25 units.
Answer:
Step-by-step explanation:
Solve the linear equation x+x+2/4 = 189.5 State the property that justifies your first step and why you chose it.
Lydia buys 3 bottles of pineapple juice at the corner store for a total cost of $1.65. If each bottle costs the same amount, how much is each bottle of juice?
Answer:
Step-by-step explanation:
the answer would be $0.55 cents for each bottle
you divide 1.65 with 3 your total would be 0.55 cents without a remainder :)
Hope this helps solve your question!
Driving on the highway, you can safely drive 65 miles per hour. Which of the following functions could be used to find how far you can drive in 'h' hours?
a. D = 65h
b. D = 65 + h
c. D = 65/h
d. D = h/65
Answer:
The answer is A, D=65h
Step-by-step explanation:
This is because D is representing how far you drove, so you can only drive 65 mph. And that will be 65*h=D. Hope this helps!
The solution is Option A.
The distance traveled is calculated by Distance D = 65h , where h is the number of hours
What is Speed?
Speed is defined as the rate of change of position of an object in any direction. Speed is measured as the ratio of distance to the time in which the distance was covered. Speed is a scalar quantity as it has only direction and no magnitude
Speed = Distance / Time
Given data ,
Let the distance traveled be represented as D
Now , the value of D will be
Let the speed be represented as S = 65 miles per hour
Let the time required to travel a distance of D be represented as = h
where h is the number of hours
So , the distance D is calculated from the formula
Speed = Distance traveled / Time required
Substituting the values in the equation , we get
65 = D / h
Multiply by h on both sides of the equation , we get
D = 65h
Therefore , the value of D is 65h
Hence , the equation will be D = 65h where h is the number of hours and D is the total distance
To learn more about speed click :
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PLEASE HELP! CAN'T FIGURE OUT :((
Lauren sold 140 boxes of cookies. 60% of the boxes of cookies were sold to people her dad works with. Of these boxes, 1/4 of the boxes of cookies contained mint. How many boxes of mint cookies did Lauren sell to people her dad worked with?
A. 84
B. 56
C. 21
D. 14
Answer:
0.25×84=21
Step-by-step explanation:
Answer:
C: 21
Step-by-step explanation:
Does (2 ⋅ 3)2 have the same value as 22 ⋅ 32?
a. Yes, they both equal 18.
b. Yes, they both equal 36.
c. No, the first is 25 and the second is 13.
d. No, the first is 18 and the second is 36.
Answer: d
Step-by-step explanation:
Robin wants to buy a membership at a carwash this summer so that she can keep her car clean. She compared deals from Speedy Clean Carwash and Sudsy Bubbles Carwash to decide which membership to get. Robin arranged the information in the tables below.
How many times will Robin need to wash her car to spend the same amount at both carwashes?
P.S.: I attached the table below:)
Help me please il give 20 points!
Answer: 1. a. 15 b. 11 c. 2 d. 7 e. 5.5
2. Stem: Leaf:
1 9
2 5, 9
3 3, 3, 8
4 0, 7, 9
5 4, 5
6 1, 5
7 2, 7
8 1
3. a. 13 inches b. I'm pretty sure that it is the second quarter because there is more snow. c. The first quarter because it's section is more spread out among the numbers.
Step-by-step explanation:
GUYS PLEASE HELP ASAP I WILL MARK BRAINLIEST WITH BEST ANSWER!
Henrik grew 3 times as many potatoes as Derek grew. Derek managed to grow 49 potatoes. Henrik already had 173 potatoes harvested from his other field. How many potatoes does Henrik have in all?
its a typed answer ;-; sry i just need help so bad
PLEASE HELLPPP!!!!!A set of data includes 98 data points ranging from 0 – 160. If the data is split into classes with a range of 10 (1 – 10, 11 – 20, etc), and there are no values that fall in the class 81 – 90, what can you say about the data?
All the data lies below 80.
The median could be in the range 81 – 90.
The mean of the data will not be between 81 – 90.
The relative frequency of the class 81 – 90 is 0.
Answer:
The data would be differently split into ranges and the data and the class
Step-by-step explanation:
what is the opposite of -2/3? explain.
Consider a triangle with each angle measuring 60 degrees. How many different triangles can be made with the given condition, and why?
Answer: 1 only
Step-by-step explanation:
because u got 60
More than one different triangle can be made using the given condition, therefore, the last option is correct.
What is an equiangular triangle?An equiangular triangle is one with three equal sides and three equal angles, all of which are measured at 60 degrees.
Given that, each angle of the triangle measures 60°.
Therefore, the triangle is an equiangular triangle.
There exist triangles with the same angle measure of 60° each, but with different side lengths.
Hence, more than one different triangle can be made using the given condition, therefore, the last option is correct.
Learn more about the equiangular triangle:
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ILL GIVE 50 + 25 POINTS AND BRAINLIEST TO CORRECT ANSWER!!
x is indirectly proportional to y, if x = 32 and y = -10, write the proportional constant and equation. Then if y = -51, find x.
TYVM!!
Answer: 10
Step-by-step explanation:
add subtract and add again