Answer:
k = -50
Step-by-step explanation:
3/5k - 5 = 7/10k
3*2 / 5 *2 = 6/10 to get a common denominator
6/10k - 5 = 7/10k subtract 6/10 from 7/10
-5 = 1/10k now eliminate fraction by multiple both sides by reciprocal (10/1)
-5(10) = 1/10(10)k
-50 = k
find the value of x of given figure and solve this question step by step plzz help question number D
Answer:
15
Step-by-step explanation:
First we need to find the length of BC and for that we gonna use Pysagoras theorem
10^2 + (2√11)^2 = |BC|^2
√144 = |BC|^2
12 = BC Now we will use this to find the value of x
x^2 = 12^2 + 9^2
x^2 = 144 + 81
x^2 = 225
√x^2 = √225
x = 15
Answer:
The value of x is 15 cm.
Step-by-step explanation:
There are two triangles in the diagram that share a common side.
The triangles are:
ABC and BDC
First we have to find the third side of BDC so that we can use it to find the value of x.
The triangle is a right angled triangle so Pythagoras theorem can be used to find the third side.
In the triangle
[tex]Base = BD =10cm\\Hypotenuse = BC = ?\\Perpendicular = CD = 2\sqrt{11}cm[/tex]
Pythagoras theorem is given as:
[tex](Hypotenuse)^2 = (Base)^2 + (Perpendicular)^2\\BC^2 = BD^2 + CD^2\\BC^2 = (10)^2 + (2\sqrt{11})^2\\BC^2 = 100+(2^2 * 11)\\BC^2 = 100+(4*11)\\BC^2 = 100+44\\BC^2 = 144\\\sqrt{BC^2} = \sqrt{144}\\BC = 12cm[/tex]
Now for triangle ABC
[tex]Base = BC = 12 cm\\Perpendicular = AB = 9 cm\\Hypotenuse = AC = x\\[/tex]
Using Pythagoras theorem
[tex]AC^2 = BC^2+AB^2\\x^2 = (12)^2 + (9)^2\\x^2 = 144+81\\x^2 = 225\\\sqrt{x^2} = \sqrt{225}\\x = 15cm[/tex]
Hence,
The value of x is 15 cm.
Which values of a, b, and c correctly represent the answer in simplest form? 3 =a O a=38.0= 14.0=1 a=1.0= 14.C = 38 O a= 1.5=7.C= 19 O a = 19.0= 7.0= 1
Answer:
The answer could be A) or D) because the zero acts as a place holder. Its a little easier to derive it if you have a bigger decimal
Step-by-step explanation:
Hurry.
What is the least common multiple of 4 and 12?
Answer:
12
Step-by-step explanation:
The least common multiple (LCM) of two or more non-zero whole numbers is the smallest whole number that is divisible by each of those numbers. In other words, the LCM is the smallest number that all of the numbers divide into evenly.
Answer:
the LCM is 12
Step-by-step explanation:
Trevor recorded the amount of material collected for recycling at his school for 5
weeks. Trevor calculated a line of best fit for the data to model the amount collected, y,
as a function of time, x. He found the correlation coefficient to be between 0.7 and -1.
Which statement BEST describes the correlation among the data?
A. There is a weak correlation in which the amount collected increased as time increased.
B. There is a weak correlation in which the amount collected decreased as time increased.
C. There is a strong correlation in which the amount collected increased as time increased.
D. There is a strong correlation in which the amount collected decreased as time increased.
The statement that best describes the correlation among the data is this: D. There is a strong correlation in which the amount collected decreased as time increased.
How to determine the best sentenceIn determining the coefficient relationship between two variables, it is important to note that a coefficient 0f 0.7 and above is considered strong. In the given data, we see that the correlation coefficient was between 0.7 and -1.
This means that there is strong evidence to indicate that the amount of material collected decreased as time went by.
Learn more about coefficient relationship here:
https://brainly.com/question/28196194
#SPJ1
f(x)= x^2. what is g(x)?
Answer:
A
Step-by-step explanation:
[tex]f(x) ~ \mathsf{has ~(1,1)~ in ~it, ~so ~the ~answer~ is ~ \boxed{A}}[/tex].
A number x is multiplied by - 7/12. The product is -0.6. What is the value
of x?
Answer:
7.2/7
Step-by-step explanation:
is the answer
follow me
125 is what percent of 50?
Answer:
250%
Step-by-step explanation:
For this equation we have to use the percent composition formula. It is as follows:
[tex]\frac{part}{whole} *100 = percent[/tex]
Now, we plug in the numbers given in the equation. 125 being the part and 50 being the whole.
[tex]\frac{125}{50} *100 = 250[/tex]
Therefore, 125 is 250% of 50.
Hope this helps!!
- Kay :)
The percentage of 125 in whole quantity 50 is, 250%
What is the percentage?Percentage is a way to express a number as a fraction of 100. It is often used to represent ratios and proportions in a more convenient and understandable form, especially in financial and statistical contexts. For example, 50% means 50 per 100, or half of a given quantity. It is denoted using the symbol "%".
To find what percentage 125 is of 50, we first need to convert the ratio of 125 to 50 into a decimal and then convert the decimal into a percentage.
The ratio of 125 to 50 can be expressed as a fraction: 125/50. We can convert this fraction to a decimal by dividing the numerator by the denominator:
⇒ 125/50
⇒ 2.5
Next, we convert the decimal to a percentage by multiplying it by 100 and adding the percent symbol:
⇒ 2.5 x 100
⇒ 250%
So, 125 is 250% of 50. This means that 125 is equal to 250% of the value of 50.
To know more about Percentage check:
https://brainly.com/question/29306119
#SPJ5
Enter a numerical expression for the word expression.
the difference between 77 and 16
Answer: 61
Step-by-step explanation: To find the difference means to subtract. 77 - 16 = 61
A person runs 1 4/5 miles in 1/5 of an hour determine how many miles they are running per hour
Answer:
Step-by-step explanation: There are different methods to solve this, but I chose to change these into decimals- 1.8 and .20, to make it easier. Since miles per hour is speed, and speed is distance divided by time, all you have to do is fill in the blanks.
Since 1.8 / .20= 9, the answer is 9 miles per hour.
To take it a step farther, you could multiply this by any number of hours, or convert it to minutes. For example, to figure out how far they'd get in 10 minutes, I could divide the unit rate by 60, since there are 60 minutes in an hour, and get 0.15. So, in 10 minutes, they'd get 0.15 miles away.
Just in the mood for math, ig.
Ew, did I just say that? >.<
answer the question for z
Answer: The answer is z=mn/(m–n), Abhlnav, did you see the question that has been deleted? It’s because it’s a language about Polish.
Step-by-step explanation: Solve the rational equations by combining the expressions and isolating the variable of Z.
The expression 18a-12 factored is
Answer:
6(3a-2)
Step-by-step explanation: Both terms have a 6. Factor that our
Find the slope of every line that is perpendicular to the graph of the equation:
y-5x=7
Answer:
[tex]m=-\frac{1}{5}[/tex]
Step-by-step explanation:
Help me out in this question please
Answer:
The Answer is D, 6 1/12
Step-by-step explanation:
1. 3 1/4 = 3 3/12
2. 2 5/6 = 2 10/12
3. 3 3/12 + 2 10/ 12 = 5 13/12
4. 5 13/12 = 6 1/12
daisy breeds locusts . how many 5kg bags of food will she need to last four weeks if her locusts eat 1kg of food a day ?
Answer:
28
Step-by-step explanation:
7 bags for 7 days, times 4 weeks = 28 bags.
and what psychopath BREEDS LOCUSTS?!
theres a freaking locust plague in different countries you know T^T
Karen will spend more than $25 on gifts. So far, she has spent $14. What are the possible additional amounts she will spend?
Use for the additional amount (in dollars) Karen will spend.
Write your answer as an inequality solved for c .
Answer:
i say it is 1.78 because you are didving the sum and the prat
Step-by-step explanation:
Question 21 of 25
In AQRS, m2 Q = 63º, m2 R = 70°, and m2 S= 47° Which side of AQRS is the
shortest?
O A. QR
O B. Cannot be determined
O C. RS
O D. QS
w
SUBMIT
Answer:
I think its QR
Step-by-step explanation:
Sorry if im wrong
The side QR is the shortest side.
Option A is the correct answer.
What is a triangle?A triangle is a 2-D figure with three sides and three angles.
The sum of the angles is 180 degrees.
We can have an obtuse triangle, an acute triangle, or a right triangle.
We have,
We can use the fact that in a triangle, the side opposite the smallest angle is the shortest side.
So we need to determine which angle is the smallest.
Now,
In ΔQRS,
m∠Q = 63º, m∠R = 70°, and m∠S= 47°
Now,
m∠S= 47° is the smallest.
So,
QR is the side opposite to m∠S.
Thus,
QR is the shortest side.
Learn more about triangles here:
https://brainly.com/question/25950519
#SPJ7
What is required for an electric charge to flow through a wire?
zero resistance in the wire
a balance of electric potential
high resistance in the wire
a difference in electric potential
The thing that is required for an electric charge to flow through a wire is D. a difference in electric potential.
What is an electric charge?It should be noted that a electric charge simply means a property of matter that shows how they're affected by a magnetic field.
In this case, the thing that is required for an electric charge to flow through a wire is a difference in electric potential.
Learn more about electric charge on:
https://brainly.com/question/857179
#SPJ2
Find x AND the length of each side if ABC is an isosceles triangle with AB = BC . (Answers Rouen to the nearest tenth if needed)
Answer:
x = 7
AB = 7
BC = 7
Step-by-step explanation:
AB = BC cuz it's an isosceles triangle
In the given isosceles triangle x is 7 units and AB ≅ BC is also of 7 units.
What is a triangle?A triangle is a three-sided closed-plane figure formed by joining three noncolinear points. Based on the side property triangles are of three types they are Equilateral triangle, Scalene triangle, and Isosceles triangle.
As the triangle has two equal sides we can equate two expressions to find x.
∴ 2x - 7 = 4x - 21.
- 2x = - 14.
2x = 14.
x = 7.
AB = 2(7) - 7.
AB = 14 - 7.
AB = 7.
BC will also be of 7 units as AB ≅ BC.
learn more about triangles here :
https://brainly.com/question/2773823
#SPJ2
Use the coefficient of variation to determine
which data set varies the most.
on
Data Set 1: 2 = 12 and s = = 7
Data Set 2: 2
0.12 and s
= 0.3.
Data Set 1 CV ~
% (Round to the
nearest percent)
Data Set 2 CV =
%
Answer:
Dataset 2
Step-by-step explanation:
The Coefficient of variation is the ratio of the standard deviation and the population mean.
Data Set 1: 2 = 12 and s = = 7
Data Set 2: 2
0.12 and s
= 0.3.
Coefficient of variation = (standard deviation / mean) * 100%
Dataset 1:
Standard deviation = 7 ; mean = 12
Coefficient of variation = (7 / 12 ) * 100% = 0.5833 = 58%
Dataset 2:
Standard deviation = 0.3 ; mean = 0.12
Coefficient of variation = (0.3 / 0.12) * 100% = 2.5 * 100% = 250
Hence dataset 2 varies the most with a greater value of variation Coefficient.
I need help with question 7
Use mathematical induction to prove that the statement is true for every positive integer n.
7+49+343+...+7↑n= 7↑n+1-7/6
PLZ HELP ME
Answer:
3x-4v
it is because of me
Suppose scientists compared the wind speeds and barometric pressure readings of two severe storms over the Atlantic Ocean. For one of the storms, the barometric pressure was 1,000 mb (millibars), and the maximum wind speed was 100 kmh (kilometers per hour). The second had a barometric pressure of 960 mb and maximum wind speeds of 180 kmh. (a) Develop a rule that you could use to predict the wind speed given any barometric pressure.
Answer:
So i found the teacher notes after hours of looking here are the exact answers so i would recommend changing the wording.
Part A: Ordered pairs in the form (mb, kmh): (1,000, 100) and (960,180) Let X be the barometric pressure and Y be the wind speed.
Slope= (180-100)
---------------- = -2
(960-1000)
Formula: y=-2(x-1000)+100
Part B: y=-2(980-1000)+100=140
140 kmh is reasonable. Because 980 mb is halfway between 960 mb and 1000 mb, we should expect a wind speed halfway between 180 kmh and 100 kmh.
Part C: The wind speed intercept is (0,2100) [or (2100,0) if written that way.] This means that when brometric pressure is 0 mb, then the wind speed would be 2100 kmh. However in the context of real weather, this is an impossible situation.
Part D: The slope means that every decrease of 2 kmh in wind speed corresponds to a 1 mb increase in barometric pressure.
hoped this helped :)
what is the solution of inequality -6+2p+3 >7
A phone has 5/8 of its battery charge left. If the battery loses 3/8 of its full charhe every hour, how many hours will tbe battery last?
Answer:
0.25 Hours
Step-by-step explanation:
First subtract 5/8 by 3/8 your answer will then be 2/8 the divide 2/8 to make it into a decimal and your answer will be 0.25
Hope this solved your question
Write 2^60 as an exponent with a base of: b 16
Answer:
im pretty sure you tried to say
Write 2^60 as an exponent with a base of:
a) 8
b) 16
c) 32
the answer is :
8^20 (eight to the twentieth power)
[tex]2^{60}[/tex] is equivalent to [tex]16^{15}[/tex].
We can rewrite the expression by means of the following power property, that is to say:
[tex]a^{b\cdot c} = (a^{b})^c[/tex], [tex]a, b, c\in \mathbb{N}[/tex] (1)
Where [tex]a[/tex] and [tex]a^{b}[/tex] are bases.
If we know that [tex]a = 2[/tex] and [tex]b\cdot c = 60[/tex], then the equivalent expression is:
[tex]2^{60} = 2^{4\cdot 15} = (2^{4})^{15} = 16^{15}[/tex]
Hence, [tex]2^{60}[/tex] is equivalent to [tex]16^{15}[/tex].
We kindly invite to check this question on power operations: https://brainly.com/question/18112557
2xy-xz=4 solve for x
Someone help me solve this please, I'd appreciate it if you can walk me through the steps. If not, just answering it is okay! :)
X
Step-by-step explanation:
Multiply by reciprocal: [tex]\frac{x}{6} *\frac{6}{1} =\frac{6x}{6} =x[/tex]
[tex] \Large{ \underline{\underline{ \tt{Required \: answer:}}}}[/tex]
Here we have to simplify:
[tex] \rm{ \dfrac{x}{6} \div \dfrac{1}{6} }[/tex]So, we know that:
Dividing a fraction by another fraction is the same as multiplying the fraction by the reciprocal (inverse) of the other.
By using this,
➝ [tex] \rm{ \dfrac{x}{6} \times 6}[/tex]
➝ [tex] \rm{x}[/tex]
The correct answer is Option (A)
what is 2 x 8 x 10987
Answer:
175792
Step-by-step explanation:
8 x 2 = 16
16 x 10987 = 175792
A glass is 1/3 full. Then 75cm of orange juice is poured in.
The glass is now full. What is the total volume of the glass?
Answer:
5
Step-by-step explanation:
Please answer I’ll pay you $100 lol thanks
Answer:
d = [tex]\pi[/tex]
e = [tex]-\sqrt{8}[/tex]
f = [tex]\frac{3}{2}[/tex]
Step-by-step explanation:
D is equal to pi because pi is 3.1415... Therefore we need a point that is a little more than -3 and that is point d.
[tex]-\sqrt{8}[/tex] is roughly equal to -2.8 because 3 * 3 = 9 so that is too much, and 2 * 2 = 4 is too little so it has to be between -2 and -3. Therefore the point is e.
For 3/2 it has to be less than 2 because 2 cannot go into 3 more than once. The point would then be point f.
Hope this helps!!
- Kay :)