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Answer:

what's the question that your asking

Answer:

Sources of electrical current

Step-by-step explanation:

Based on the information given the reason why

He/ She places a compass at different positions on a wall until the compass needle change to a direction was because the construction worker

was most likely using the compass to find the Sources of an ELECTRICAL CURRENT or where the ELECTRICAL CURRENT originated from reason been that ELECTRICAL CURRENT is the movement of electric charge from cathode to anode .

Answer:

D. Sources of electrical current

Step-by-step explanation:

I just took the test

Answer: Andy completed 7 problems.

Step-by-step explanation:

Answer:

So you have a summation of 4 terms

An Easy way to do this is to simplify the process:

You need X1+X2+X3+X4 to equal 214

Let the first number be 80

80+X2+X3+X4

Let X2 and X3 be 60 each

80+ 60+ 60+X4

Lastly we are at a sum of 200

So let X4 be 14

Therfore we have a sum of 4 X terms equal 214

Answer:

[tex]\frac{1}{4}[/tex]q > -16  or [tex]\frac{q}{4}[/tex] > -16

Step-by-step explanation:

Answer: The answer is D

Step-by-step explanation: Is can't be anything negative because you cant have negative people and the bus can hold 40 people. It can be > or equal to 40.

Answer:

Step-by-step explanation:

abc = 1

We have to prove that,

[tex]\frac{1}{1+a+b^{-1}}+\frac{1}{1+b+c^{-1}}+\frac{1}{1+c+a^{-1}}=1[/tex]

We take left hand side of the given equation and solve it,

[tex]\frac{1}{1+a+\frac{1}{b}}+\frac{1}{1+b+\frac{1}{c}}+\frac{1}{1+c+\frac{1}{a}}[/tex]

Since, abc = 1,

[tex]\frac{1}{c}=ab[/tex] and c = [tex]\frac{1}{ab}[/tex]

By substituting these values in the expression,

[tex]\frac{1}{1+a+\frac{1}{b}}+\frac{1}{1+b+\frac{1}{c}}+\frac{1}{1+c+\frac{1}{a}}=\frac{1}{1+a+\frac{1}{b}}+\frac{1}{1+b+ab}+\frac{1}{1+\frac{1}{ab}+\frac{1}{a}}[/tex]

                                       [tex]=\frac{b}{b+ab+1}+\frac{1}{1+b+ab}+\frac{ab}{ab+1+b}[/tex]

                                       [tex]=\frac{1+b+ab}{1+b+ab}[/tex]

                                       [tex]=1[/tex]

Which equal to the right hand side of the equation.

Hence, [tex]\frac{1}{1+a+b^{-1}}+\frac{1}{1+b+c^{-1}}+\frac{1}{1+c+a^{-1}}=1[/tex]

Answer:

3 packages

Step-by-step explanation:

each package has 3

if she buys 1, she has 3 party favors

buys 2, has 6

buys 3, has 9

she can't buy 2 packages, then one friend doesn't get a party favor. so she will have to buy 3 packages, use 7, leave 2 extra.

please give thanks :)

Mary should buy 3 packages to have enough for all the friends.

A word problem is a few sentences describing a 'real-life' scenario where a problem needs to be solved by way of a mathematical calculation.

Given that, Mary is planning her birthday party. She's inviting 7 friends and wants to buy party favours. The favours she wants to come in packages of 3.

Since, Each package has 3 favours

if she buys 1, she has 3 party favours

If buys 2, has 6

And, if buys 3, has 9

she can't buy 2 packages, then one friend doesn't get a party favour.

So, she will have to buy 3 packages, use 7, leave 2 extra.

Hence, she will need 3 packages.

For more references on word problems, click;

https://brainly.com/question/2610134

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Answer:

The final price including tax is $41.89

Step-by-step explanation:

The following items are on sale:

Sleeved dress $17.99

Skirt $16.19

T-shirt $8.99

Subtotal $43.17

The cheapest item is the T-shirt for $8.99 and it will be discounted by 30%:

$8.99 - 30/100 * $8.99 = $8.99 - $2.70 = $6.29

The total sale price is now: $43.17-$2.70=$40.47

Now we add the 3.5% tax:

$40.47 + 3.5/100 * $40.47 = $40.47 + $1.42 = $41.89

The final price including tax is $41.89

Answer:

y = 30 - 2x

Step-by-step explanation:

She must complete 30 hours, so we start at 30 hours.

Each day, she has 2 less to do after she does her service hours.

So if x = # of days, then that is -2x

Put that together,

y = 30 - 2x

please hit the heart button and crown brainliest :)

Answer:

it is 0

Step-by-step explanation:

Answer:

0

Step-by-step explanation:

Once you simplify the equation, you get 40-64+24. When you use 40+24, you get 64 which cancles out the other 64

Answer:

91

Step-by-step explanation:

Answer:

Step-by-step explanation:

Let the average score in the last 6 games be x, then average score in first 2 games is x + 5

Considering the total score of 90 solve for x the equation:

In the first 2 games John's score was:

Answer:

given

x=

Step-by-step explanation:

2x-3y=24

2×(-3)-3×(-7)

-6-21

27

Answer:ty

Step-by-step explanation:

Step-by-step explanation:

Amount of green clay at the start = 57g + 31g = 88g.

Amouny of green clay used = 88g - 18g = 70g.

Hence 70g of green clay was used during the week.

Answer:

B

Step-by-step explanation:

Distributing the right side, the equation becomes

6-x=16+4x

Add x to both sides and subract 16

5x=-10

Divide by 5

x=-2

Answer:

x= 40 degrees

Step-by-step explanation:

The two angles inside must add up to 126, since the missing unknown angle is supplementary to 126 (where they add up to 180 degrees).

Thus

x + (2x+6) = 126

3x + 6 = 126

3x = 120

x = 40

please give thanks :)

Answer:

she has 228 in all. but i do not know how much she has after she ate some

Answer:

120

Step-by-step explanation:

Answer:

x+6y=20

x=8, y=2

Andy did 8 problems

Step-by-step explanation:

Answer: LOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOL FAT NECK AHH BOY

Answer:

Rachael is faster.

you can tell by finding the unit amount.

Step-by-step explanation:

I can tell by finding the unit amount. (miles per minute)

Rachael:

214/15 = 14.2666666667  or about 14.27

Julie:

334/25 = 13.36 miles per minute.

Answer:

(5,0) and (0,3) have a slope of -3/5

Step-by-step explanation:

Here, we want to state a pair of points that have a slope of -3/5

Mathematically, we can have the slope of a straight line calculated as;

m = y2-y1/(x2-x1)

This could give points like (5,0) and (0,3)

Answer:

x = 58.47

Step-by-step explanation:

Use SOH CAH TOA

Sin(16) = 20/x

x = 58.47

Answer:

(b) 6

Step-by-step explanation:

Because QS and PR are perpendicular, The line QS passes through the line PR. Therefore, we can subtract PS from PR.

8-2=6

Answer:

[tex]given \\ \frac{ {(y + 1)}^{5} }{(y + 1) ^{3} } \\ as \: they \: have \: same \: base \\ {(y + 1)}^{5 - 3} \\ = (y + 1) ^{2} \\ or \: we \: can \: write \\ = (y + 1)(y + 1) \\ \\ hope \: it \: helps.[/tex]

Answer:

The answer is  [tex]y^2+2y+1[/tex]

Explanation:

- Properties of Exponent -

[tex]\frac{a^m}{a^n}=a^{m-n}[/tex]

Our a is y+1

Our m is 5

Our n is 3

[tex]\frac{(y+1)^5}{(y+1)^3}=(y+1)^{5-3}\\(y+1)^2[/tex]

- Multiply The Polynomial -

As for the Quadratic Polynomial and being squared, we use the following formula:

[tex](x+y)^2=x^2+2xy+y^2[/tex]

Our x is y

Our y is 1

Thus,

[tex](y+1)^2=y^2+2(y)(1)+1^2\\(y+1)^2=y^2+2y+1[/tex]

As our simplified, multiplied form is [tex]y^2+2y+1[/tex]

-8/5

Rise over run aka how many it goes up/down over how many it goes across

Answer:

Wind speed = 30 mph

Plane speed = 270 mph

Step-by-step explanation:

Given that :

Distance = 600 miles

Let speed of airplane = a ; speed of wind = b

Net speed ; with wind = a + b

Net speed against wind = a - b

Time taken with wind = 2 hours

Time taken against wind = 2.5 hours

Recall :

Speed = distance / time ; distance = speed * time

(a + b) * 2 = (a - b) * 2.5

2a + 2b = 600

a + b = 300 - - - (1)

a = 300 - b

2.5a - 2.5b = 600

a - b = 240 - - - (2)

300 - b - b = 240

300 - 2b = 240

-2b = - 60

b = 30

a = 300 - 30

a = 270

Wind speed = 30 mph

Plane speed = 270 mph

Hi!

[tex]\spadesuit[/tex] We're given an equation in slope-intercept form.

                          [tex]\clubsuit~~~\large\boldsymbol{y=mx+b} ~~~\clubsuit[/tex]

where:

[tex]\clubsuit ~\boldsymbol{m - > slope}[/tex]

[tex]\clubsuit~~\boldsymbol{b- > y-intercept}[/tex]

Therefore,

[tex]\stackrel{\heartsuit}{\boxed{\boxed{\textsc{Answers:}\begin{cases}\bold{Slope:-7}\\\bold{y-intercept:12}\end{cases}}}}[/tex]

I hope that helped, have a wonderful day. :)