if an atom has 12 positively charged protons and 12 negatively charged electrons, what is it's total charge?

Answer:

The slope of line passes (x1, y1) and (x2, y2) could be calculated by:

    slope = (y2 - y1)/(x2 - x1)

=>A line passes (5, 1) and (2, -2) has the slope:

    slope = (-2 - 1)/(2 - 5) = (-3)/(-3) = 1

Hope this helps!

:)

Answer:

F. and D.

Step-by-step explanation:

square root of 81 is 9 because 9 is a number which produces a specified quantity when multiplied by itself.

Answer:

B

Step-by-step explanation:

Subtitution method:

y=6x-4 (1)

y=7x-7 (2)

subtitute 7x-7 into (1) because both y1 and y2 are same

7x-7=6x-4

7x-6x=-4+7

x=3

subtitute x=3 into any equation

eg: y=6x-4 y=7x-7

=6(3)-4 or =7(3)-7

=14 =14

Therefore, The answer is (3,14)

Answer:A

Step-by-step explanation: It is a because you should trust me

The angle at which the pizza slices were cut would be 39.75°. The round-off to the nearest whole number would be 40°.

To find out the angle at which the pizza slices were cut, we need to first find out the angle of each slice of the pizza.

As per the question,

The total area of the pizza= 34 square inch

The total angle of the pizza= 360 degrees

We already know the area of a pizza= [tex]\pi r^2[/tex]

[tex]\pi[/tex]= 3.14

The diameter of the pizza, given= 14 inch

Therefore, the radius of the pizza= 7 inch

Area of the pizza= [tex]3.14*7^2[/tex]

=153.94

Now, the angle of the slice can be determined by:

The angle of the slices= (Area of each slice/Area of the pizza)* Total angle

The angle of the slices= (34/153.94)*360

=79.51

Since you ate 2 slices,

the angle of one slice = 79.51/2

=39.75 or the round-off would be 40.

Therefore, the angle at which the pizza slices were cut is 40°.

To know more about areas,

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Answer:

C.440.24

Step-by-step explanation:

To get the new balance first multiply the extra balance

[tex]\frac{2.5}{100}*429.50[/tex]

[tex]\frac{1073.75}{100}[/tex]

[tex]10.7375[/tex]

so add the new balance to 429.50

429.50+10.7375=440.2375=440.24

Answer:

C. $440.24

Step-by-step explanation:

Multiply 0.025 (the decimal form of 2.5%) to 429.50:

429.50 · 0.025 = 10.7375

Then add the sum to the original balance:

429.50 + 10.7375 = 440.2375

Round to nearest hundredth:

440.24

Answer:

1560

Step-by-step explanation:

1200*0.075 = 90

1200+90+90+90+90

Answer:

$1,560

Step-by-step explanation:

7.5% of $1,200 is 90. 90 times 4 (as in 4 years) is 360.

$360 plus $1,200 is $1,560.

Answer:

It is A again.

Step-by-step explanation:

Equation given:

[tex]F=kx-kx_{0}[/tex]

We have to isolate [tex]x[/tex]

[tex]F+kx_{0}=kx[/tex]

Divide both sides by [tex]k[/tex]

[tex]$\frac{F+k_{0}}{k}=x$[/tex]

Answer:

Polyester Fabric = 4 || 8 || 16 || 22

Silk Fabric          = 18 || 36 || 72 || 99

Step-by-step explanation:

Given:

The above table

Ratio; Polyester Fabric : Silk = 2:9

Required

Complete the above table

Provided that the ratio of the cost of one meter of polyester fabric to the cost of one meter of one silk is 2:9;

To complete rows of polyester fabric

We simply multiply cost by ratio of polyester fabric ratio (2)

To complete rows of silk fabric

We simply multiply cost by ratio of silk fabric ratio (9)

This is as follows:

When length = 2m

Polyester Fabric = 2 * 2 = 4

Silk Fabric = 2 * 9 = 18

When length = 4m

Polyester Fabric = 4 * 2 = 8

Silk Fabric = 4 * 9 = 36

When length = 8m

Polyester Fabric = 8 * 2 = 16

Silk Fabric = 8 * 9 = 72

When length = 11m

Polyester Fabric = 11 * 2 = 22

Silk Fabric = 11 * 9 = 99

Hence, the complete table is as follows:

Polyester Fabric = 4 || 8 || 16 || 22

Silk Fabric          = 18 || 36 || 72 || 99

Answer:

11

Step-by-step explanation:

11x5+10=65

Answer: 11 on edge

Step-by-step explanation:

subtract 10 from both sides of the equation to get: 5x=55

then, divide both sides by 5 to get: x=11

so he used the gym 11 times last month!

Hope this helps have a great day!

Answer:

D .

Step-by-step explanation:

(x+2)2+y2=4.

this is because the equation for the circle is in the graph.

Answer:

D

Step-by-step explanation:

Answer:

c . Quadratic binomial

Step-by-step explanation:

a qudratic expression is always in form of ax²+bx + c while a quadratic trinomial is in the form of ax³+bx²+cx+d .

I hope it helps

Answer:

c.) quadratic binomial

Step-by-step explanation:

Quadratic equation:

ax² + bx + c

The polynomial is in this form and like all quadratics forms a parabola, a u-shape, when graphed. Therefore, it is a quadratic equation.

Binomial = an expression with two terms

This polynomial has three terms: x², and 5x, making it a quadratic binomial.

Answer:

B. [tex]\sqrt[9]{xy^2}[/tex]

Step-by-step explanation:

Answer:

[tex]x(\sqrt[9]{y^2} )[/tex]

Step-by-step explanation:

[tex]xy^{2/9}[/tex]

The power 2/9 is on the variable y.

[tex]x(y^{2})^{1/9}[/tex]

The power 1/9 can be written as the ninth root.

[tex]x(\sqrt[9]{y^2} )[/tex]

Answer:

Complementary angles add to 90 degrees.

If they are equal, each angle is 45 degrees.

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

y-int. = 2

Slope m= rise/run = 1/2

The line has an equation y = (1/2)x +2

Shading is under the line, so y≤(1/2)x +2. Answer is A.

Answer:

Step-by-step explanation:

Suppose

[tex]\left. { S = a _ { 1 } \frac { 1 - 5 ^ { 6 } } { 1 - 5 } } \\\\ { \Leftrightarrow S = \frac { a _ { 1 } } { 4 } ( 5 ^ { 6 } - 1 ) } \\\\ { \Leftrightarrow a _ { 1 } = \frac { 4 S } { 5 ^ { 6 } - 1 } } \right.[/tex]

then a1 = (4×15 624)÷(5^(6)-1)

            = 4

Answer:

1.2

Step-by-step explanation:

She bought 1.2 bitcoins in $400.

A ratio indicates how many times one number contain in another number. The ratio of two number is written as x : y, which is equivalent to x/y. Where, x and y are individual amount of two quantities.

And, Total quantity gives after combine as x + y.

Given that,

Number of bitcoins in $1 USD =  0.003

The to find the number of bitcoins in $400

We just multiply 400 by the number of bitcoin bought in 1 $1 USD

Therefore,

The number of bitcoin she bought in $400 is,

= 400 x 0.003

= 1.2

Thus,

Number of bitcoins in $400 = 1.2

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#SPJ3

So the smallest value in the set is 9.

Look at the attached picture

Hope it will help you

Good luck on your assignment

Answer:

g=1960

hope it helped

Step-by-step explanation:

Please find attached photograph for your answer.

Hope it helps.

Do comment if you have any query.

We know that [tex]A=hl[/tex]. Given [tex]A[/tex] and [tex]h[/tex] we can find [tex]l[/tex].

How? Well here is a procedure.

[tex]

A=hl \\

\frac{A}{h} = \frac{hl}{h} \\

\frac{A}{h} = l \\

l=\frac{200}{25}=\boxed{8\mathrm{in}}

[/tex]

Hope this helps.

Answer:

4

Step-by-step explanation:

6 --6=12

2--1=3

12/3=4

Answer:

1false

2true

Its me, hope from the day we said we would text at 10am remember lollll that person so HI i have a lot of accounts and the other got banned for no reason

Answer:

B. (-3, 2)

Step-by-step explanation:

The solution is given by the coordinates of the point where the lines intersect.

From the graph we see that it is  the point where x = -3 and y = 2.

Answer:

(8, -1)

Step-by-step explanation:

To use elimination, we can add the two equations together to eliminate the y:

x-y = 9

x+y = 7

x + x -y + y = 16

2x = 16

x = 8

Plug that back into the original equation to get:

8-y = 9

y = -1

So the ordered pair is (8, -1)

Answer:

h = 39.8 inches

Step-by-step explanation:

The volume of a cylinder is given by

V = pi r^2h

We know the diameter d = 32 so the radius is 1/2 of the diameter

r = d/2=32/2 = 16

32000 = pi (16)^2 h

32000 = 256 ( pi) h

Divide each side by 256 pi

32000 / 256 pi = h

125/pi = h

Using 3.14 for pi

39.8089172 = h

Rounding to the nearest tenth

h = 39.8 inches

Answer:

Because the product is always non-termination,non-repeating decimal.

Step-by-step explanation:

If we have [tex]a[/tex] is irrational;  [tex]b[/tex] is rational such that [tex]b \neq 0[/tex] , then [tex]a \cdot b[/tex] is irrational.

A way to represent this is:

[tex]a\in\mathbb{R}\setminus\mathbb{Q}, b\in\mathbb{Q},ab\in\mathbb{Q}\implies a\in\mathbb{Q}\implies\text{Contradiction}\therefore ab\not\in\mathbb{Q}.[/tex]

Note that we have a contradiction, because [tex]a[/tex] is not a rational number, as I stated in the beginning. Therefore, ab is irrational.

Answer: A

Step-by-step explanation:

Multiplying an irrational number by a rational number will always be an irrational number because irrational numbers do not repeat and terminate.

So for example multiplying pi by a rational like two you will have an irrational number because pi is an irrational number.

[tex]\pi * 2[/tex] = 6.28318530718  as you could see that is an irrational number because there is no repetition or termination.

Answer:

x=9

Step-by-step explanation:

2x+3(6)=36

2x+18=36

2x=18

x=9

Answer:

x=9

Step-by-step explanation:

if y=6 its now 2x + 18 =36. Subtract 18 from both sides. 2x = 18. 2(9) = 18. Therefore x=9

Answer:

62.5 ft

Step-by-step explanation:

→You can set up a proportion, like so:

[tex]\frac{20}{8} =\frac{x}{25}[/tex]

→Cross multiply:

[tex]\frac{500}{8x}[/tex]

→Divide 500 by 8:

x = 62.5

Answer:

62.5 feet

Step-by-step explanation:

8/20

25/x

25*20/8 = x

x = 62.5

Answer:

the maximum area that can be of a circle that has been cut out of rectangular board can be 70 in zero