Answer:
The new current is half the original current.
Step-by-step explanation:
Ohm's Law:
We use Ohm's law to solve this question. It states that
[tex]\Delta_V = RI[/tex]
In which [tex]\Delta_V[/tex] is the voltage difference, R is the resistence, and I is the current.
A student builds a simple circuit with a single resistor with resistance R and measures an electric potential difference ΔV across the resistor.
So
[tex]\Delta_V = RI_{1}[/tex]
[tex]I_{1} = \frac{\Delta_V}{R}{/tex]
Then, the student replaces the resistor with a new one of resistance 2R and keeps the electric potential difference the same.
Now the current will be
[tex]\Delta_V = 2RI_{2}[/tex]
[tex]I_{2} = \frac{\Delta_V}{2R} = \frac{1}{2}(\frac{\Delta_V}{R}) = \frac{1}{2}(I_1)[/tex]
The new current is half the original current.
write the fraction or mixed number as a percent.
5/6
15. A decrease in value over time is known as:
Answer:
it's information presented unlawful
Answer: Depreciation (not sure)
How is Pythagorean theorem and geometric mean related?
Answer:
The two triangles formed are also similar to each other. The measure of the altitude drawn from the vertex of the right angle to the hypotenuse is the geometric mean between the measures of the two segments of the hypotenuse.
Step-by-step explanation:
What's the square root of 18
Answer:
4.24 to two decimal places
Answer:
4,24
.........................
why is this equavilant
Answer:
Distribution property
Step-by-step explanation:
Mya deposits $5,000 in a savings account that pays 2.9% interest, compounded semiannually, what is her balance after six months?
Answer:
$5,072.50
Step-by-step explanation:
Total Interest - $72.50
9 gal 1 qt - 5 gal 3 qt
Finding percents
1 is 25% of what number?
How do you combine like terms of -8(r-2) + 6(r-2) ??? Will mark brainliest if the answer is right.
Answer:
[tex]-2r+4[/tex]
Step-by-step explanation:
[tex]-8(r-2)+6(r-2)[/tex]
Distribute:
[tex](-8)(r)+(-8)(-2)+(6)(r)+(6)(-2)\\-8r+16+6r+-12[/tex]
Combine like terms:
[tex](-8r+6r)+(16+-12)\\-2r+4[/tex]
-2r + 4 is your answer.
write the equation and find the values of x. round side lengths to the nearest tenth and angle measures to the nearest degree
Answer:
x = 44°Step-by-step explanation:
Equation:
cos x = 15/21cos x = 0.714x = arccos 0.714x = 44° (rounded to the nearest degree)Calculate the area of the quadrilateral ABCD
Answer:
16-11
Step-by-step explanation:
PLS HELP ASAP GIVING BRAINLIEST
PLZPLZPLZPLZPLZPL
1.5 im sorrry again if im wrong:(
Step-by-step explanation:
im sorry if i am wrong
Answer:
178.64 square cm
Step-by-step explanation:
5.8 x 8.8 x 2 = 102.08
8.8 x 8.7 = 76.56
76.56 + 102.08 =
178.64
Hope that helps!
Alvin completely filled his 21-gallon
tank of gas with regular fuel for $55.23.
As he left the gas station, he noticed
the station across the street sold
regular fuel priced at $2.56 per gallon.
How much money could Alvin have
saved per gallon if he had gone to the
station across the street?
Answer:
7 cents per gallon if his tank was completely empty upon filling
Step-by-step explanation:
55.23/21=2.63 per gallon at original gas station
2.63-2.56=.07 per gallon saved
Answer:
He would have saved 7 cents a gallon.
Step-by-step explanation:
The gas he filled up on costed 2.63 a gallon
The gas across the street costed 2.56 per gallon
He spent 55.23 on gas, if he filled up at the station across the street he would have paid 53.76.
Kendra's dog has and outside pen enclosed by a fence.the area of the pen is 135 square feet of the pen is 15 feet long how wide is it?
Lyla has 2132 buttons that need to be scored equally into13 jars how many buttons will be in each jar
Omg plz help me and show how you did it
what is the product of 1/2 X -1/4 and 5x^2 -2X +6
All the answers you need is at the top
Answer:
I don't know if you need help, but the answer to the question in the picture is indeed A. :)
What is the value of x in the equation X - 2.6 = 1.8?
Step-by-step explanation:
Given
x - 2.6 = 1.8
x = 1.8 + 2.6
x = 4.4
Hope it will help :)
Answer:
1.8+2.6=x
x=4.4 is the answer
Pls help me if you can I really need help
Answer:
y = 1/10x
Step-by-step explanation:
We see that it intersects points (60,6), (120,12), and (0,0)
y = mx + b
m = 6/60 = 1/10
b = 0
y = 1/10x
help pleaseeee not similar or similar
Answer:
similar
Step-by-step explanation:
What is the step by step equation to solve 5 (y + 2/5) = -13
5( y + 2/5) = -13
Distribute the 5 by multiplying the 5 by each term inside the set of parentheses:
5y + 2 = -13
Subtract 2 from both sides:
5y = -15
Divide both sides by 5:
Y = 3
The answer is y = 3
Hello! I’m struggling with this question just if someone could help me!
Answer:
Assuming the question is about the area of the "house" it's 70.
Step-by-step explanation:
The triangle's height is 18 - 10 = 8
The area of the rectangle is 5 * 10 = 50
The area of the triangle is 5 * 8 / 2 = 20
The total area is 50 + 20 = 70
A and B are complementary angles. If m_A= (2x + 10)° and m
ZB = (3x + 15)°, then find the measure of ZB
Step-by-step explanation:
<A + < B = 90° { being complementary angles)
2x + 10° + 3x + 15° = 90°
5x = 90° - 15° - 10°
5x = 65°
x = 13°
Now
<B = 3x + 15° = 3 *13° + 15° = 54°
Hope it will help :)
Identify at least one confounding variable that undermines the conclusion drawn in the following fictional study:
Prof. Acosta was interested in which of two popular statistics textbooks (Statistics: It Will Change Your Life and Statistics: Bigger, Better, Stronger) was better for students. Prof. Acosta compared the two texts by assigning one text to a section of statistics taught by Prof. Agnew from 10 to 11 a.m. on Monday, Wednesday, and Friday, and the other text to a section of statistics taught by Prof. Alvarez from 7 to 10 p.m. on Wednesday evenings. At the end of the term, all students took the same comprehensive test. Students to whom Statistics: Bigger, Better, Stronger was assigned performed better on the test than did students to whom Statistics: It Will Change Your Life was assigned. Therefore, Prof. Acosta concluded that the former textbook was the better one.
Answer:
Identifying at least one confounding variable that undermines the conclusion drawn in the fictional study is:
All students took the same comprehensive test.
Step-by-step explanation:
In a study, an independent variable causes an effect on the dependent variable. But a confounding variable is the variable that influences the independent variable as well as the dependent variable. If this third variable is not controlled, it might lead the researcher to make a wrong estimate of the relationship that exists between the independent variable and the dependent variable.
The rectangular prism had a volume of 384 cubic inches. What is the value of w? Please show steps to solve :)
Answer:
Step-by-step explanation:
V=xyz
V=w(w)(3w/4)
V=(3w^3)/4 and V=384
(3w^3)/4=384
3w^3=1536
w^3=512
w=8in
Find the Greatest Common Factor of the Numerator and Denominator
10/70
Answer:
GCF (10,70) = 10
Solve the system of equations -6x+y=-21 and 2x-1/3y=7. What is the solution to the system of equations
Answer:
Infinite number of solutions
Step-by-step explanation:
Write these equations in a column:
-6x+y=-21
2x-1/3y=7
Use elimination by addition and subtraction. Start by multiplying the 2nd equation by 3, obtaining:
-6x+y=-21
6x - y= 21
----------------
0 - 0 = 0
There are an infinite number of solutions. The two equations shown immediately above are multiples of one another.
What is the value of BC Please help I’ll give you BRAINLIEST
Answer:
1.5
Step-by-step explanation:
use pythagoras theorem
c^2=a^2+b^2
2^2=a^2+1^2
4=a^2+ 1
4-1 =a^2
3 =a^2
a= 1.7
but on the answers provided there is no correct answer bt chose 1,5 because it is close to 1,7 than the rest of the a answers provided
what is b - 3 + 6 - 2b ?
Answer:
your answer = -b+3
Step-by-step explanation:
I hope this helps you
Answer:
1b+9
Step-by-step explanation
simplify the question
6 + 3 =9 and b - 2b = 1b
=1b+9
For the function defined by I = 50/t, what can you say about the relationship between the variables I and t?
Answer:
Inverse proportionality relationship
Step-by-step explanation:
SInce I equals 50 divided by t, we see "t in the denominator, which corresponds to an INVERSE proportionality between these variables (I and t)