Answer:
Part 1: Answer the following questions (20 points)
1. Name and describe the components needed to make a complete circuit.
. battery
. connecting wire
. resister
. voltmeter
. ammeter
2. Compare and contrast a series and parallel circuit. Give at least one way that they are alike and one way that they are different.
They both give off electricity energy, and they are different because they don't release the same amount of energy
3. Ohm's law is represented by the equation I = V/R. Explain how the current would change if the amount of resistance decreased and the voltage stayed the same.
In accordance with the law, if r became smaller, and V stayed the same, the current would increase. The increases would be inversely proportional to the resistance, if the resistance was halved, the current would double.
4. Define resistance and describe what would happen to a light bulb if the voltage increased but the resistance stayed the same. The resistance of a conductor is the ratio of the voltage
between its ends to the current through it
Step-by-step explanation:
Which of the folling equals (-19^-12X(-19)^4? -19^-36, -19^-8, -19^16, -19^-3
Answer:
[tex]\huge\boxed{(-19)^{-8}=19^{-8}}[/tex]
Step-by-step explanation:
Use
[tex]a^n\times a^m=a^{n+m}[/tex]
[tex](-19)^{-12}\times(-19)^4=(-19)^{-12+4}=(-19)^{-8}[/tex]
Answer:
They r correct lol
Step-by-step explanation:
The mean balance of all checking accounts at a bank on December 31, 2005, was $900. A random sample of 53 checking accounts taken recently from this bank gave a mean balance of $841 with a standard deviation of $190. Using the 1% significance level, can you conclude that the mean balance of such accounts has decreased during this period
Answer:
Step-by-step explanation:
Given that:
The population mean μ = 900
The sample size n = 53
The sample mean = 841
The standard deviation = 190
The level of significance = 0.01
To test the claim that the mean balance of the accounts has decreased during the period.
The null and the alternative hypothesis can be computed as:
[tex]H_o : \mu \ge 900 \\ \\ H_1 : \mu < 900[/tex]
This is a left-tailed test since the alternative is less than 900
The test statistics can be computed as:
[tex]Z = \dfrac{\overline x - \mu}{\dfrac{s}{\sqrt{n}} }[/tex]
[tex]Z = \dfrac{841 -900}{\dfrac{190}{\sqrt{53}} }[/tex]
[tex]Z = \dfrac{-59}{\dfrac{190}{7.28}}[/tex]
Z = -2.26
The p-value = P(Z < -2.26)
From the z-tables
The p-value = 0.01191
The p-value ≅ 0.012
Decision rule: To reject the null hypothesis if the significance level is > p-value.
We failed to reject the null hypothesis.
Conclusion: Thus, there is insufficient evidence to conclude that such accounts mean balance has decreased during this period.
Which ordered pair is a solution to the following linear system
Answer:
am confused
Step-by-step explanation:
Step-by-step explanation:
sorry Im not sure what the question is
what is the solution of the equation?
-5=q+2
Step-by-step explanation:
-5=q+2
-5+2=q
q= -3
hope it helps.
Answer:
q = -7
Step-by-step explanation:
q+2=-5
subtract 2 from both sides
q+2-2=-5-2
q+0=-7
q=-7
Hope this helps. Have a nice day. May it be filled with joy and happiness. Please, stay safe and wash your hands. Happy Holidays.
Simplify 3(x- 4) + 8(x+ 2).
O 11x - 4
O 11x +4
O 11x -2
Answer:
11x +4
Step-by-step explanation:
What value of x will make the polygon a parallelogram?
Step-by-step explanation:
In a parallelogram, opposite sides are equal.
Hence 3x = 6 and x = 2.
Select the correct answer.
ΔABC with vertices A(-3, 0), B(-2, 3), C(-1, 1) is rotated 180° clockwise about the origin. It is then reflected across the line y = -x. What are the coordinates of the vertices of the image?
A.
A'(0, 3), B'(2, 3), C'(1, 1)
B.
A'(0, -3), B'(3, -2), C'(1, -1)
C.
A'(-3, 0), B'(-3, 2), C'(-1, 1)
D.
A'(0, -3), B'(-2, -3), C'(-1, -1)
Answer:
the answer is d. hope this helps
Answer:
D.
A'(0, -3), B'(-2, -3), C'(-1, -1)
Step-by-step explanation:
PLATO2022 LNHS
–10 – (–3) = ?????
PLEASE HELP
Answer:
-7
Step-by-step explanation:
−10−(−3)
=−10−(−3)
=−10+3
=−7
Answer:
-7
you're welcome
what is the standard form of (x + 1 + i)(x + 1 − i)
Answer:
hope it helps
Step-by-step explanation:
please mark me as brainliest thank you
In a scale of an apartment,1 centimeter represents 2 3/4 feet, if the length of the kitchen is 4 1/2 cm on the scale drawing what is the actual length in feet of the kitchen
Answer:
Step-by-step explanation:
12 3/8
what is the reciprocal of 8/5?
Answer:
5/8
Step-by-step explanation:
To find the reciprocal, flip the fraction. The sign remains the same.
The reciprocal of 8/5 is 5/8.
Answer: 5/8
Answer:
D
Step-by-step explanation:
Solve for the missing variable(s) and SHOW ALL WORK
Answer:
x = 4
Step-by-step explanation:
From the pythagoras theorem
(x+2)^2 = x(5+x)
x^2 + 4x + 4 = 5x + x^2
x^2 + 4x + 4 - 5x - x^2 = 0
-x + 4 = 0
4 = x
how do I solve this?
Answer:
a
Step-by-step explanation:
its 6 loses over 14 wins
f(x) = x^2. What is g(x)?
Answer:
D. just sub x = 1, and if the y you get is 5 then that's the answer
5(x-3y)-2x=6 and x=3y
Solve the equations please by substitution
Answer for the first equation:
(7, -1)
Step-by-step explanation:
Original Equation: 5(x - 3y) - 2x = 6 When x = 3y
Substitute in the 3y for x:
5(3y - 3y) - 2(3y) = 6
5(0) - 6y = 6
-6y = 6
y = -1
Plug -1 in for y in the original equation:
5(x -3(-1)) - 2x = 6
5(x + 3) - 2x = 6
5x + 15 - 2x = 6
3x + 15 = 6
3x = -9
x = -3
(-6y + 8y4 − 5)(y2 − 11y)
Answer:
[tex]- 8y^6 - 88y^5-6y^3 + 71y^2 + 55y[/tex]
Step-by-step explanation:
Given
[tex](-6y + 8y^4 - 5)(y^2 - 11y)[/tex]
Required
Evaluate
[tex](-6y + 8y^4 - 5)(y^2 - 11y)[/tex]
Expand Brackets
[tex]y^2(-6y + 8y^4 - 5)- 11y(-6y + 8y^4 - 5)[/tex]
Open brackets
[tex]-6y^3 - 8y^6 + 5y^2 + 66y^2 - 88y^5 + 55y[/tex]
Collect Like Terms
[tex]- 8y^6 - 88y^5-6y^3 + 5y^2 + 66y^2 + 55y[/tex]
[tex]- 8y^6 - 88y^5-6y^3 + 71y^2 + 55y[/tex]
There are 30 marbles in a bag. 24 of them are blue. What percentage of the marbles are blue?
Answer:
80%
Step-by-step explanation:
24/30 = x/100
100/30= 3 1/3
24 x 3 1/3= 80
a. -6 + 2x + 4 + 3x - (-2)
What is the answer?
Answer:
5x
Step-by-step explanation:
-6 + 2x + 4 + 3x - (-2)
rearrange to make it easier to solve
2x + 3x - 6 + 4 - (-2)
add like terms, negative time negative is positive
5x - 2 + 2
5x
The area of cross section of a prism is 45cm² and its height is,10cm. Find its volume
Answer:
The Volume of triangular prism
V = 450 cm³
Step-by-step explanation:
Explanation:-
Given The area of cross section of a prism A = 45cm²
and height (h) = 10 cm
The Volume of triangular prism
V = ( Base area X Height )
= 45 X 10
= 450 cm³
The Volume of triangular prism
V = 450 cm³
Convert 60 quarts to gallons. 60 qt = ? gal Will the converted amount have more or fewer units than the original?
Answer: 15 gallons .
Step-by-step explanation:
Step 1
4 quarts = 1 gallon
therefore 60 quarts = (60 quarts x 1 gallon) / 4 quarts
= 15 gallons .
Step 2-- The converted amount which is 15 has fewer units than the original which is 60.
A cook used 6 gal of cooking oil last month. She used 15% less this
month. How much cooking oil did she use this month?
Answer:
100%-15%=85%
She used 85% of the total oil for last month
So 6gallons × 85 ÷ 100 = 5.1 gal
Help plsssss is due at 11:59 I don’t have much time
find the x and y intercept and the slope of the graph of 8x-6y=24
Answer:
the x intersept is 3 the y intercept is 4
Step-by-step explanation:
x intersept : 24/8 = 3
y intersept : 24/6 =4
PLEASE I REALLY NEED HELP
Please please please
A contractor needs to buy nails to build a house. The nails come in small boxes and large boxes. Each small box has 50 nails and each large box has 350 nails. The contractor bought 5 more large boxes large boxes than small boxes, which altogether had 2550 nails. Determine the number of small boxes purchased and the number of large boxes purchased.
Answer:
Number of small boxes purchased : 2
Number of large boxes purchased : 5
Step-by-step explanation:
Let,
x be the number of small boxes of nails purchased
y be the number of large boxes of nails bought
Then according to given statement;
50x+350y = 2550 Eqn 1
y = x+5 Eqn 2
Putting value of y from Eqn 2 in Eqn 1
50x + 350(x+5) = 2550
50x + 350x + 1750 = 2550
400x = 2550-1750
400x = 800
Dividing both sides by 400
[tex]\frac{400x}{400}=\frac{800}{400}\\x=2[/tex]
Putting x=2 in Eqn 2
y = 2+5
y = 7
Hence,
Number of small boxes purchased : 2
Number of large boxes purchased : 5
pls help asap!!!!!!!!
Answer:
I think option B is correct
generosity
hope my answer is helpful to you
plz mark me as brainlist
find the product of (2x+4)(5x-3y)(8x+4y).
please help me solve this asap
.
The school band decided to make pizza kits to sell for their fundraiser.
The materials cost them $
1500, and they sold the pizza kits for $8.50 a
kit. The Function below can be used to find the profit p(x), where x is
the nunuer of kits sold.
P(x) = 8.50x- 1500
If the band made a profit of $2920, how many pizza kits were sold?
a. 167 kits
b. 344 kits
C. 402 kits
d. 520 kits
Answer:
520
Step-by-step explanation:
Given that:
Profit function p(x) is :
P(x) = 8.50x- 1500
If the profit made = $2920 ; the number of pizza kits sold is :
Then p(x) = 2920
Putting p(x) = 2920 in the equation :
2920 = 8.50x - 1500
2920 + 1500 = 8.50x
4420 = 8.50x
Divide both sides by 8.50
4420 / 8.50 = 8.50x / 8.50
520 = x
Hence, number of pizza kits sold is 520
Answer:
Step-by-step explanation:
569
Eloise bought 2 boxes of crackers to share with her friends. Her friends ate 1/2 of the first box and 2/3 of the second box.
How many boxes were left over?
a.1/2 box
b.3/5 box
c.5/6 box
d.1 2/5 boxes
Answer:
5/6 of a box is left over.
Step-by-step explanation:
2 - 1/2 - 2/3 = 0.83333333333
0.83333333333 in fraction form is 5/6.
What is the equation of a line with a slope of
(-2, -4)?
that passes through the point,
O A. y--d
OB. y--2
O C. y= 2x- 4
ODy--3
Answer: D. 1/2x - 3
Hope this helps :)
While bolling with friends, Brandy rolls a strike in 2 out of 10 frames. What is the experimental probability that Brandy will roll a strike in the first frame of the game?