Please help me, i need this done ASAP!!!

Answer:

A : 25

Step-by-step explanation:

In a neutral atom, the number of electrons is equal to the number of protons. The atomic number indicates the number of protons.

The mass number is the sum of the number of neutrons and the number of protons.

mass number=protons+neutrons

As we know from the atomic number, the number of neutrons is 14 and the number of electrons is 11.

mass number = 14 + 11

Answer:

4. [tex]\frac{1}{6}[/tex]

8. [tex]\frac{1}{2}[/tex]

10. [tex]7\frac{3}{4}[/tex] × [tex]\frac{1}{3}[/tex] = [tex]7\frac{1}{4}[/tex]

I've answered 4, 8 and 10 for you as you haven't provided 12, but I hope this helps!! ^-^

Answer:

Step-by-step explanation:

The hypotenuse has different lengths. It’s always c2 and the longest triangle length of all the triangle.

Answer:

8

Step-by-step explanation:

if 25 is a quarter of 100, divide 32 by 4 and you get your answer

Answer:

8/32

Step-by-step explanation:

To find the numerator, you must divide 100 by 32 which equals 3.125. And whatever you do to the bottom you must do to the top, so 25 divided by 3.125 is 8

I hope this helps ;)

Answer:

arc WVY = 250°

Step-by-step explanation:

The tangent- tangent angle YXW is half the difference of the intercepted arcs

[tex]\frac{1}{2}[/tex] ( WVY - WY) = 70

[tex]\frac{1}{2}[/tex] (10a - (4a + 10) ) = 70 ( multiply both sides by 2 )

10a - 4a - 10 = 140

6a - 10 = 140 ( add 10 to both sides )

6a = 150 ( divide both sides by 6 )

a = 25

Then

arc WVY = 10x = 10 × 25 = 250°

Answer:

Glasses 12 : 48 because, when you do 20/5 it equals to 4 so, the ratio will equal to seconds = Glasses • 4

44 seconds = 11 glasses

Step-by-step explanation:

Answer:the answer would also be 20 degrees

Step-by-step explanation:

because its exaclty across from the angle!!!!!

Answer:

20 degrees

Step-by-step explanation

they are opposite angles

Answer:

B is the answer

Step-by-step explanation:

Since there is already a 90 degree angle in the right triangle, the other two angles must add up to 90.

[tex]3x + 6 + 2x - 1 = 90[/tex]

[tex]5x + 5 = 90[/tex]

[tex]5x = 85[/tex]

[tex]x = 17[/tex]

Plug 17 into both to find the smaller angle

[tex]3(17) + 6 = 57[/tex]

[tex]2(17) - 1 = 33[/tex]

[tex]33 < 57[/tex]

So 33 is the answer or B

Answer:

$52.50

Step-by-step explanation:

1. You take 550 and divide by 5.

2. Then you would takw that number (105) and multiply by 2 (210)

3. Then you take 210 and divide by 4 which equals 52.5

4. The answer is 52.5 because she takes 1/4 of the 2/5 for vacation a month.

Answer:

{1} x + 2y = 13

{2} 3x - 5y = 6

x = 13 - 2y

substituting into {2}

3x -5y = 6

3( 13 - 2y) - 5y = 6

39 - 6y -5y = 6

-11y = 6 -39

y = -33 /-11

 ( minus and minus cuts in fraction, so the answer will come in positive)

y = 3

now , substituting into {1}

x + 2(3) = 13

x = 13 -6

x = 7

so,

the solution are:-

x = 7

y = 3

I hope this helps a little bit.

Answer:

13 servings

Step-by-step explanation:

(11/10) / (2/25)

= 13.75

She can make 13 servings [not enough to make up to 14 servings]

Answer:

Option B will be your answer

Step-by-step explanation:

hope it helps

Answer:

B is the correct one

Step-by-step explanation:

Hope that helps

Answer:

8,670

Step-by-step explanation:

because if 102 dollars per plate you take 102x85 = 8,670

Answer:

8670

Step-by-step explanation:

first you multiply 102 x 85 then you get 8670

Answer:

2.1666666

Step-by-step explanation:

52÷24=2.1666666

[tex]\sqrt{x} x^{2}[/tex]

Answer:

1.27 radians

Step-by-step explanation:

Answer:  3/4 cm³

Step-by-step explanation:

V = width x height x length

V = (1/2cm)(3cm)(1/2cm)

V = (3/2)(1/2)

V = 3/4 cm³

Im actually having my teacher look at this one right now. Give me a second.. My teacher said try side angle side... I have no idea

Answer:

[tex]\huge\boxed{\text{B) 1}}[/tex]

Step-by-step explanation:

In order to find which expression is equivalent to [tex](8^5 \times 3^{-7})^0[/tex], we need to note the order of operations.

PEMDAS tells us that when solving an equation, we'd go in this order.

Parentheses

Exponents

Multiplication/Division

Addition/Subtraction

Using this, we'd start by evaluating what's inside the parentheses, [tex]8^5 \times 3^{-7}[/tex]. We'd then bring that value to the 0th power.

Wait... there's something special about bringing anything to the 0th power. Bringing anything to the 0th power makes the value 1.

It can be -5... it can be 1,000,000, any number possible, taken to the 0th power, will always be 1.

So no matter what the value inside the parentheses is, taking it to the 0th power will always make it 1.

Therefore, this expression is equivalent to 1.

Hope this helped!

Answer:

$2.25

Step-by-step explanation:

You set one of the variables equal to the other variable then plug it in to the other equation and find the value of the other to use to find for that one.

Answer:

understand

Step-by-step explanation:

hope it's helpful for you

Answer:

intercepts are 2 and -4

I hope this helps ;)

Answer:

A = 84.3

Step-by-step explanation:

Given the formula for the Pentagon:

1/4√5(5+2√5)a^2

The first step is to simplify the expression.

[tex]\frac{49\sqrt{25+10\sqrt{5}}}{4}[/tex]

The second step is to convert it to a decimal form.

84.30339262

The last step is to round 84.30339262.

84.3

I hope this helped!

Answer:

for second one

2.01m² is your answer

Answer:

5

Step-by-step explanation:

Vanilla ice cream = 3/5 x 25 = 15

Remaining = 25 - 15 = 10

Mint ice cream = 1/2 x 10 = 5

Remainder = 10 - 5 = 5 = vanilla

Answer:

Step-by-step explanation:

Simple interest is not compounded and is

I=Prt (where I=interest, P=principle, r=rate, t=time)

I=3000(.02)5

I=$300

Answer:

8

2

+

1

3

Step-by-step explanation: