Kelsey had 8 entries in her science journal. Last week, she wrote x more entries. How many entries are in her science journal now?

9514 1404 393

Answer:

  35

Step-by-step explanation:

A = PB

A = (7%)(500) = 0.07×500 = 35

35 is 7% of 500

_____

You can think of the % symbol as being a shorthand way to write /100. That is, ...

  7% = 7/100 = "seven hundredths" = 0.07

By using the definition of inverse functions, we will see that:

g(g(f(f(f(36))))) = f(36) = 25.

Two functions f(x) and g(x) are inverses if:

f( g(x) ) = x

g( f(x) ) = x

Then we can rewrite:

g(g(f(f(f(36)))))

First, we can see that:

g(f(f(f(36)))) = f(f(36))

Replacing that in our expression, we get:

g(g(f(f(f36))))) = g(f(f(36)))

And the above expression is equal to f(36), to be sure of that, let's replace:

u = f(36)

Then we can rewrite:

g(f(f(36))) = g(f(u))

And by definition, the above thing is equal to u:

g(f(u)) = u = f(36).

Finally, we conclude that:

g(g(f(f(f(36))))) = f(36) = 3*√36 + 7 = 3*6 + 7 = 25

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Answer:

I'm pretty sure it is 7.4% or 0.074.

Step-by-step explanation:

Answer:

0.041 = 4.1%

Step-by-step explanation:

The probability the first box has a secret decoder ring is 13/62.

The probability the second box has a secret decoder ring is 12/61.

The probability of both is:

P = (13/62) (12/61)

P ≈ 0.041

Answer: 6,760,000 different possible serial numbers.

Step-by-step explanation: There are 10 digits numbered 0 to 9. There are also 26 letters in the alphabet. Using this, we can do 10*10*10*10*26*26 as there are four digits needed and two letters. This computes to approximately 6,760,000 different possible serial numbers, assuming no other factors are involved.

Step-by-step explanation:

[tex] \red{\frak{Given}} \begin{cases} & \sf{The\ measure\ of\ one\ angle\ of\ traingle\ is\ {\pmb{\sf{10^{\circ}}}}.} \\ & \sf{The\ other\ two\ angles\ are\ in\ the\ ratio\ of\ {\pmb{\sf{3\ :\ 14}}}.} \end{cases}[/tex]

We know that,

Angle sum property,

[tex]\rule{200}{3}[/tex]

[tex] \sf \dashrightarrow {10^{\circ}\ +\ 3x\ +\ 14x\ =\ 180^{\circ}} \\ \\ \\ \sf \dashrightarrow {10^{\circ}\ +\ 17x\ =\ 180^{\circ}} \\ \\ \\ \sf \dashrightarrow {17x\ =\ 180^{\circ}\ -\ 10^{\circ}} \\ \\ \\ \sf \dashrightarrow {17x\ =\ 170^{\circ}} \\ \\ \\ \sf \dashrightarrow {x\ =\ \dfrac{\cancel{170^{\circ}}}{\cancel{17}}} \\ \\ \\ \dashrightarrow {\underbrace{\boxed{\pink{\frak{x\ =\ 10^{\circ}.}}}}_{\sf \blue {\tiny{Value\ of\ x}}}} [/tex]

∴ Hence, the value of x is 10°. Now, let us find out the other two angles of the triangle.

[tex]\rule{200}{3}[/tex]

Second AnglE :

∴ Hence, the measure of the second angle of triangle is 30°. Now, let us find out the third angle of triangle.

[tex]\rule{200}{3}[/tex]

Third AnglE :

∴ Hence, the measure of the third angle of the triangle is 140°.

Answer:

Step 1. Read the problem. Draw the figure and label it with the given information. .

Step 2. Identify what you are looking for. the measure of an angle

Step 3. Name. Choose a variable to represent it. Let x= the measure of an angle.

Step 4. Translate. m\angle A+m\angle B+m\angle C=180

Write the appropriate formula and substitution

X + 4.3 + 10.6- 8.1 \end{array}

Step 7. Answer the question. The measure of the third angle is 6.8ft

The new surface area is approximately 12264.56 ft².

A prism is a three-dimensional object.

There are triangular prism and rectangular prism.

We have,

To solve this problem, we first need to calculate the original surface area of the complex solid.

The complex solid is composed of two rectangular prisms, one with dimensions 9.8 ft × 6.5 ft × 8.1 ft and one with dimensions 10.6 ft × 4.3 ft × 6.5 ft.

The surface area of the first rectangular prism is:

2(9.8 × 6.5) + 2(9.8 × 8.1) + 2(6.5 × 8.1) = 464.82 ft²

The surface area of the second rectangular prism is:

2(10.6 × 4.3) + 2(10.6 × 6.5) + 2(4.3 × 6.5) = 411.22 ft²

So the total original surface area of the complex solid is:

464.82 + 411.22 = 876.04 ft²

Now we need to find the new surface area, which is exactly 14 times the original surface area.

Therefore, we can write:

New surface area = 14 × original surface area

New surface area = 14 × 876.04

New surface area ≈ 12264.56 ft²

Thus,

The new surface area is approximately 12264.56 ft².

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Answer:

[tex]S_{45}[/tex] = 9000

Step-by-step explanation:

there is a common difference between consecutive terms , that is

11 - 2 = 20 - 11 = 9

this indicates the sequence is arithmetic with nth term

[tex]S_{n}[/tex] = [tex]\frac{n}{2}[/tex] [ 2a₁ + (n - 1)d ]

where a₁ is the first term and d the common difference

here a₁ = 2 and d = 9 , then

[tex]S_{45}[/tex] = [tex]\frac{45}{2}[/tex] [ (2 × 2) + (44 × 9) ]

    = 22.5(4 + 396)

    = 22.5 × 400

    = 9000

Answer:

22.5

Step-by-step explanation:

To find volume, you need to multiply all of the numbers together.

1.5 ft x 3 ft x 5 ft = 22.5

Answer:

66.00

Step-by-step explanation:

eleven pies have 6 slices each

Multiply 6 by 11 to get 66

66x1.00=66.00

#1

#2

#3

#4

#5

#6

#7

#8

Answer:

See below.

Step-by-step explanation:

#1) Audi symbol

#2) Under Armour Logo

#3) Chanel Logo

#4) Red Logo

#5) Mouse Logo

#6) Android Bot

#7) Nike logo

#8) Spider

Answer:

z=6

Step-by-step explanation:

32=12+4(z-1)=

32=12+4z-4

32=8+4z

24=4z

6=z

Answer:

B and D

Step-by-step explanation:

Kitchen and Bedroom will have same number f boxes after James moved 3 boxes from the living room to the bedroom.

The kitchen and the bedroom will have the same number of boxes

The key on the graph implies that:

1 image represents 3 boxes

Using the above key, we have:

When 3 boxes are moved from the living room to the bedroom, we have:

Hence, the kitchen and the bedroom will have the same number of boxes

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Answer:

Step-by-step explanation:

d-b

d=12

b=3

12-3

=9

hope dis helps

Answer:

D.It is less than 0 because the addends have opposite signs and the positive addend is farther from zero.

Step-by-step explanation:

The given expression is :

When we subtract a larger number from a smaller number, we get a negative answer as mathematically we cannot subtract a larger number from smaller, so we subtract the numbers in standard format and out a negative sign in front of the answer.

Like this given expression will become : -519.70

Now, any negative number is smaller than zero.

Therefore, the correct answer is option D.

Step-by-step explanation:

If you draw an altitude of the right triangle, you get that the legs are (18/2)=9 and the height (which I'll call x) and a hypotenuse of 18.

By the Pythagorean theorem,

[tex] {9}^{2} + {x}^{2} = {18}^{2} \\ 81 + {x}^{2} = 324 \\ {x}^{2} = 243 \\ x = \sqrt{243} = 9 \sqrt{3} [/tex]

Answer:

x < -14

Step-by-step explanation:

Step 1: Subtract 6 from both sides.

Step 2: Divide both sides by -3 and flip the inequality sign.

Therefore, the answer is  x < -14.

Isolate the variable by dividing each side by factors that don't contain the variable.

Inequality Form:

x<−14

Interval Notation:

(−∞,−14)

hope this helps

Answer:

anything that has a numerator three times greater than its denominator. Examples: 3/1, 6/2, 9/3, 12/4, 15/5, so on.

Step-by-step explanation:

When simplifying, you divide both by the denominator and if it equals three, then the fraction is equal to three.

Answer:

i may be correct or not, i am not sure

Step-by-step explanation:

-34/5+-34/5 is -68/5 which is 13 3/5

Answer:

-13[tex]\frac{3}{5}[/tex]

Step-by-step explanation

[tex]-6\frac{4}{5} + -6\frac{4}{5}[/tex]                          

calculate

-13[tex]\frac{3}{5}[/tex]

Answer:

x=1 or x=2 or x=3 or x=4

Step-by-step explanation:

x4−10x3+35x2−50x+24=0

Step 1: Factor left side of equation.

(x−1)(x−2)(x−3)(x−4)=0

Step 2: Set factors equal to 0.

x−1=0 or x−2=0 or x−3=0 or x−4=0

x=1 or x=2 or x=3 or x=4

Answer:

Simply put, algebra is about finding the unknown or putting real life variables into equations and then solving them. ... Algebra can include real numbers, complex numbers, matrices, vectors, and many more forms of mathematic representation

Step-by-step explanation:

Answer:

sides

Step-by-step explanation:

The perimeter is equal to the sides of the plane figure all added together.

Answer:

Quaters - Q=12

Dimes - D=10

Nickels - N= 48

Step-by-step explanation:

First, notice that $6.40 = 640 cents. The corresponding linear equation and a solution is shown below in several steps:

Original equation for amount of Dimes (D):

10*D  + 25*(D+2) +5*4*(D+2) = 640

Simplified as following, resulting in the answer for D:

55*D=550

D=10

thus having the amount of Quarters:

Q=12

and correspondingly, amount of Nickels:

N= 48

Answer:

Quarters = 12

And correspondingly, amount of Nickels:

Nickels = 48

Answer: 1/2

0,4

-2

-2,-2

Step-by-step explanation: took the lesson

Answer:

-13 is an integer, a rational number and also a real number

Step-by-step explanation:

-13 is an integer, a rational number and also a real number

Answer:

-0.5

Step-by-step explanation:

-4x=2

2/-4= -0.5

x= -0.5

As we know an identity that ;

Setting, [tex]{\bf{{\theta}=\footnotesize \dfrac{\pi}{8}}}[/tex] will give us ;

[tex]{:\implies \quad \sf \cos \left(2\times \dfrac{\pi}{8}\right)=2\cos^{2}\left(\dfrac{\pi}{8}\right)-1}[/tex]

[tex]{:\implies \quad \sf 2\cos^{2}\left(\dfrac{\pi}{8}\right)=\dfrac{1}{\sqrt{2}}+1}[/tex]

[tex]{:\implies \quad \sf 2\cos^{2}\left(\dfrac{\pi}{8}\right)=\dfrac{1+\sqrt{2}}{\sqrt{2}}}[/tex]

[tex]{:\implies \quad \sf \cos^{2}\left(\dfrac{\pi}{8}\right)=\dfrac{1+\sqrt{2}}{2\sqrt{2}}}[/tex]

Rationalizing the denominator of RHS, will yield ;

[tex]{:\implies \quad \sf \cos^{2}\left(\dfrac{\pi}{8}\right)=\dfrac{1+\sqrt{2}}{2\sqrt{2}}\times \dfrac{2\sqrt{2}}{2\sqrt{2}}}[/tex]

[tex]{:\implies \quad \sf \cos^{2}\left(\dfrac{\pi}{8}\right)=\dfrac{2\sqrt{2}+4}{8}}[/tex]

[tex]{:\implies \quad \sf \cos^{2}\left(\dfrac{\pi}{8}\right)=\dfrac{2\sqrt{2}+4}{8}}[/tex]

[tex]{:\implies \quad \sf \cos \left(\dfrac{\pi}{8}\right)=\pm \sqrt{\dfrac{2\sqrt{2}+4}{8}}}[/tex]

Now, as we know that ;

Now, setting the same [tex]{\bf{{\theta}=\footnotesize \dfrac{\pi}{8}}}[/tex]

[tex]{:\implies \quad \sf 2\sin \left(\dfrac{\pi}{8}\right)\cos \left(\dfrac{\pi}{8}\right)=\sin \left(2\times \dfrac{\pi}{8}\right)}[/tex]

[tex]{:\implies \quad \sf 2\sin \left(\dfrac{\pi}{8}\right)\cos \left(\dfrac{\pi}{8}\right)=\dfrac{1}{\sqrt{2}}}[/tex]

[tex]{:\implies \quad \sf \sin \left(\dfrac{\pi}{8}\right)\left(\pm \sqrt{\dfrac{2\sqrt{2}+4}{8}}\right)=\dfrac{1}{2\sqrt{2}}}[/tex]

[tex]{:\implies \quad \sf \sin \left(\dfrac{\pi}{8}\right)=\dfrac{\sqrt{8}}{2\sqrt{2}(\pm \sqrt{2\sqrt{2}+4})}}[/tex]

[tex]{:\implies \quad \sf \sin \left(\dfrac{\pi}{8}\right)=\pm \dfrac{1}{\sqrt{2\sqrt{2}+4}}}[/tex]

This is the required answer