What percent is 11 out of 20? ​

Answer:

7x+1

Step-by-step explanation:

2x+1+5x

Add like-terms

2x+5x+1

7x+1

Answer:

The correct answer would be B I believe

Step-by-step explanation:

Answer:

[tex]\frac{2x}{\sqrt{4x^{2} -1} }[/tex]

Step-by-step explanation:

This function can be written as:

[tex]\frac{1}{cos(sin^{-1}(\frac{1}{2x})) }[/tex]

[tex]sin^{-1}(\frac{1}{2x})[/tex] means the angle whose sine is 1/(2x).  This implies that the denominator is the cosine of the angle whose sine is 1/(2x)

Think of a right triangle and consider the angle with this sine.  Then the opposite side has length 1 and the hypotenuse has length  2x.  The Pythagorean theorem then implies that the adjacent side is

[tex]\sqrt{4x^{2} -1}[/tex]

The cosine of the angle is adjacent over hypotenuse, so the cosine is

[tex]\frac{\sqrt{4x^{2} -1}}{2x}[/tex]

The secant is the inverse of the cosine, so the answer is

[tex]\frac{2x}{\sqrt{4x^{2} -1} }[/tex]

Answer:

Maggie is incorrect.

Step-by-step explanation:

PEMDAS tells us the order of operations and the steps of solving a mathematical statement. It states that exponents must be performed before multiplication or division.

P - Parentheses

E - Exponents

M - Multiplication

D - Division

A - Addition

S - Subtraction

Therefore, to solve 12÷3² correctly, 3² needs to be simplified to 9 before dividing.

I hope this helps!

Answer:

Your graph is a parabola and needs to open down because the equation is negative. And your vertex is at (0,-4)

Answer:

the answer you can try is

186x-7

Answer:

1853

Step-by-step explanation:

6(80/4+2*3+5)-7, 6(31)-7, 1860-7=1853

Answer:

your future account value: $13,113.94

Step-by-step explanation:

Answer:

13113.94

Step-by-step explanation:

[tex]PV(1+\frac{i}{n})^{nt}\\\\6000(1+\frac{.0782}{365})^{10*365}\\\\6000(1.0002142)^{3650}\\6000*2.1856= 13113.94[/tex]

Answer:

b) 256 inches

Step-by-step explanation:

8x5x2 = 80   (top & bottom)

8x5x2 = 80    (front & back)

8x8x2 = 128    (gross area of 2 sides)

4x4x2 =32      (delete this for side cutouts) Guessing the cutoff dimension on

                                                                       left side is 4m inch.

80+80+128-32 = 256 inches

Answer:

-12x^2+6x

Step-by-step explanation:

-3x(4x-2)

-12x^2+6x

The standard form of the polynomial is -12x² +6x.

A polynomial is an equation made up of exponents, constants, and variables that is combined using mathematical operations including addition, subtraction, multiplication, and division.

The given expression is  – 3x (4x - 2)​

Solving further,

–3x (4x - 2)​

=-12x² +6x.

The standard form of the polynomial is -12x² +6x after multiplying  – 3x (4x - 2)​

To learn more about the Polynomials;

brainly.com/question/11536910

#SPJ2

Answer:

77

Step-by-step explanation:

Answer:

77 degress Farenheit

Step-by-step explanation:

Formula

(25°C × 9/5) + 32 = 77°F

Step-by-step explanation:

Given

Radius (r) = 13 mm

Area of the circle

= πr²

= 3.14 * 13 *13

= 530.66 mm²

Hope it will help :)

Answer:

No. pp you can fit in a van: 6,

No. pp you can fit in a bus: 20

Step-by-step explanation:

Let v = # of pp in vans, and let b = # of pp in buses:

8v + 9b = 228,

4v + 5b = 124

If we solve this system of equations by substitution, we isolate the first eq. for v and then substitute into the bottom eq:

v = 228-9b/8,

Substitute v = 228-9b/8 into bottom eq:

[4 * 228-9b/8 + 5b = 125]

[228+b/2=124]

[228+b = 248]

[b = 20]

Now substitute 20 to find no. of pp in the vans:

v = 228 - 9(20)/8 = 228  - 180/8 = 48/8 = 6

Answer:

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:  (−8,−27)

Equation Form: x=−8,y=−27

The area is approximately 50.27in^2

Answer:

-6z - 5

Step-by-step explanation:

1 - 9z + 3z - 6

1 + (-6) + (-9z) + 3z

-5 - 6z  or -6z - 5  

Answer:

-7x + 8(x + 1) = -7

Step-by-step explanation:

Answer:

the answer is A

Step-by-step explanation:

several steps of math reversing the equation

Answer:

8

Step-by-step explanation:

Answer:

-5 and 17

Step-by-step explanation:

-5+17 = 12

-5*17 = 12

Look up "Everything You Need To Know About (Your Subject) In One Big Fat Notebook pdf." It's the best thing I've ever been given, I have it with me in class all the time and I've aced every test. I have it with me right now and it has everything I've ever been taught in it so it might help you.

Answer:

1) x=-3  (D)

2) x=10  (G)

3) x=1  (A)

4) x=3  (C)

Step-by-step explanation:

Answer:

16 to 9

Step-by-step explanation:

Represent donut with frosting with D1 and donut without frosting with D2.

So, we have:

[tex]D_1 = 32[/tex]

[tex]D_2 = 18[/tex]

Required

Find the ratio of D1 to D2

This is calculated as:

[tex]D_1 : D_2[/tex]

Substitute values for D1 and D2

[tex]D_1 : D_2 = 32 : 18[/tex]

Divide by 2

[tex]D_1 : D_2 = 32/2 : 18/2[/tex]

[tex]D_1 : D_2 = 16 : 9[/tex]

The ratio of donuts with frosting to donuts without is 16 to 9

Answer:

16 to 19

Step-by-step explanation:

Answer:

only katie

Step-by-step explanation:

34 is not a term in the sequence but 41 is, so in this case, only katie is correct

Answer:

£3692

Step-by-step explanation:

A = p(1 + r/n)^nt

Where,

A = future value

P = principal = £2350

r = interest rate = 4.2% = 0.042

n = number of periods = 1(annual)

t = time = 4 years

A = p(1 + r/n)^nt

= 2350(1 + 0.042/1)^1*4

= 2350(1 + 0.042)^4

= 2350(1.042)^4

= 2350(1.5789)

= 2770.42

A = £2770.42

Total years = 10

Remaining years = 10 - 4

= 6 years

Remaining 6 years

P = £2770.42

r = 4.9% = 0.049

n = 1

t = 6

A = p(1 + r/n)^nt

= 2770.42(1 + 0.049/1)^1*6

= 2770.42(1 + 0.049)^6

= 2770.42(1.049)^6

= 2770.42(1.3325)

= 3691.59

A = £3691.59

Approximately £3692

Answer: I believe the answer is just 5pg?

Step-by-step explanation: Hope this helps but sorry if it's wrong. Not sure if I'm understanding the question correctly.

Answer: 5pg

Step-by-step explanation:

Like terms are terms that have the same variables and powers. E.g. 8p²g+9p²g=17p²g

8+9=17

8pg+9pg=17pg

8pg²+9pg²=17pg²

How to work out the question:

6pg+5pg=11pg

11pg-6pg=5pg

Step-by-step explanation:

x + 62° = 90°

x = 90° - 62°

x = 28°

Answer:

It would be 18-6 = 12

Step-by-step explanation:

Answer:

C, E

Step-by-step explanation:

We are looking for 12 dollars as a result of her spending 6 of 18.

A = 24

B = -12

C = 12 CORRECT

D = -24

E = 12 CORRECT

F = -12

Answer:

10(6)

Step-by-step explanation:

Hope it's right.....