Mathematics High School

WHAT THE VALUE OF 12.5X10 7

Answers

Answer 1
12.5*107 =125,000,000 or 125 million. Actually, it should have been written as 1.25*108.
Answer 2
the answer is 133.75 i believe 

Related Questions

The next train will arrive in 32 minutes and 30 seconds.

In how many seconds will the next train arrive?

____Seconds

Answers

So the first thing you need to do is convert the 32 minutes into seconds. You do this by multiplying 32 by 60. So 32x60=1920. Then you need to add the 30 to the 1920 so the answer would be 1,950 seconds. 
Final answer:

You can convert time from minutes to seconds by multiplying the number of minutes by 60. Therefore, if the train is due in 32 minutes and 30 seconds, the train will arrive in 1950 seconds.

Explanation:

To answer your question, we need to understand that 1 minute is equal to 60 seconds.

So, if the train arrives in 32 minutes, then it will arrive in 32 minutes * 60 seconds per minute, which equal 1920 seconds. And we have additional 30 seconds. So, the total time the train will arrive in is 1920 + 30 = 1950 seconds.

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A diver swims 5.875 feet up to the surface of the water. Which number represents the diver’s position in relation to the surface before swimming to the top?

Answers

Final answer:

In relation to the surface, before swimming up, the diver was -5.875 feet under the water. The negative sign implies that the diver was beneath the surface of the water.

Explanation:

The diver's position in relation to the surface before swimming to the top is represented by a negative number because swimming upwards implies moving in a positive direction. In this case, the diver was -5.875 feet from the surface before they started swimming up. This negative sign indicates that the diver was beneath the surface of the water.

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The sum of the page numbers on the facing pages of a book is 629. what are the page numbers

Answers

So basically, these numbers have to be consecutive because they're facing pages.

So you can just divide this by 2, and then add one to the second number.

629/2 = 314 R1

So the first page number is 314, and for the second one, just add one, and you get 315.

The number of pages of the book is 315.

What is an expression?

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that the sum of the page numbers on the facing pages of a book is 629.

Basically, these numbers have to be consecutive because they're facing pages.

To calculate the number of the pages divide this by 2, and then add one to the second number.

N = 629/2 = 314

Therefore, the number of pages of the book is 315.

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Evaluate the expression. Drag the answer into the box to match the expression. 27⋅((33)−1) 27 3 1 1/9
27
3
1
1/9

Answers

The answer is 1.

3^3 = 27
27^-1 = 1/27
1/27 x 27 = 1

I took this test and got this question right.

Answer:


Step-by-step explanation:

answer is 1


During a storm, why do you see the flash of lightning before you hear the roar of thunder? What would it mean if you saw the flash of lightning and heard the roar of thunder at the same time? What would it mean if there were many seconds in between the flash of lightning and the roar of thunder?

Answers

The speed of light is faster than the speed of sound. So that's why you see a flash of lightning before the roar of thunder. If you heard it at the same time as you saw it, well I will be praying for you. It would literally be exactly where you are. If you hear the thunder a long time after the flash, it means the lightning is far away.

T/5=miles away when T is time from the strike of lightning to hearing thunder 

Final answer:

You see lightning before hearing thunder due to the faster speed of light compared to sound. A simultaneous occurrence suggests the lightning is very close, while a delay indicates distance, with every five seconds equaling approximately one mile.

Explanation:

During a storm, you see the flash of lightning before you hear the roar of thunder because light travels much faster than sound. Lightning, a massive discharge of electricity, heats and expands the air rapidly, creating the sound of thunder. The difference in the travel speeds of light (3 × 10⁸ meters per second) and sound means that we perceive these events at different times.

If you saw the flash of lightning and heard the roar of thunder at the same time, it would mean that the lightning strike occurred very close to your location, practically overhead. Conversely, a noticeable delay between the flash of lightning and the sound of thunder indicates that the lightning strike is farther away. Each 5-second gap between seeing lightning and hearing thunder equates to approximately one mile distance from the lightning strike.

To estimate the distance of a storm, you only need to know the speed of sound, as the speed of light is so fast that the time it takes for light to reach you is negligible for this calculation. This method of estimating distance helps understanding the physical phenomena and ensuring safety during storms.

I REALLY NEED THIS ONE IT'S MY LAST ONE.
Verify the identity. Justify each step.



please help and show your work.

Answers

[tex]\bf cot(\theta)=\cfrac{cos(\theta)}{sin(\theta)} \qquad % cosecant csc(\theta)=\cfrac{1}{sin(\theta)} \qquad % secant sec(\theta)=\cfrac{1}{cos(\theta)}\\\\ -------------------------------\\\\ \cfrac{sec(\theta )}{csc(\theta )-cot(\theta )}-\cfrac{sec(\theta )}{csc(\theta )+cot(\theta )}=2csc(\theta )\\\\ -------------------------------\\\\[/tex]

[tex]\bf \cfrac{\frac{1}{cos(\theta )}}{\frac{1}{sin(\theta )}-\frac{cos(\theta )}{sin(\theta )}}-\cfrac{\frac{1}{cos(\theta )}}{\frac{1}{sin(\theta )}+\frac{cos(\theta )}{sin(\theta )}}\implies \cfrac{\frac{1}{cos(\theta )}}{\frac{1-cos(\theta )}{sin(\theta )}}-\cfrac{\frac{1}{cos(\theta )}}{\frac{1+cos(\theta )}{sin(\theta )}} \\\\\\ \cfrac{1}{cos(\theta )}\cdot \cfrac{sin(\theta )}{1-cos(\theta )}-\cfrac{1}{cos(\theta )}\cdot \cfrac{sin(\theta )}{1+cos(\theta )}[/tex]

[tex]\bf \cfrac{sin(\theta )}{cos(\theta )[1-cos(\theta )]}-\cfrac{sin(\theta )}{cos(\theta )[1+cos(\theta )]} \\\\\\ \cfrac{sin(\theta )[1+cos(\theta )]~-~sin(\theta )[1-cos(\theta )]}{cos(\theta )[1+cos(\theta )][1-cos(\theta )]} \\\\\\ \textit{notice that }[1+cos(\theta )][1-cos(\theta )]\textit{ is a difference of squares}[/tex]

[tex]\bf \cfrac{\underline{sin(\theta )}+sin(\theta )cos(\theta )\underline{-sin(\theta )}+sin(\theta )cos(\theta )}{cos(\theta )[1^2-cos^2(\theta )]} \\\\\\ \cfrac{2sin(\theta )cos(\theta )}{cos(\theta )[1^2-cos^2(\theta )]}\\\\ -------------------------------\\\\ \textit{recall that }sin^2(\theta)+cos^2(\theta)=1\implies sin^2(\theta)=1-cos^2(\theta)\qquad thus\\\\ -------------------------------\\\\[/tex]

[tex]\bf \cfrac{2sin(\theta )cos(\theta )}{cos(\theta )[sin^2(\theta )]}\implies \cfrac{2\underline{sin(\theta )cos(\theta )}}{\underline{cos(\theta )sin(\theta )} sin(\theta )}\implies \cfrac{2}{sin(\theta )} \\\\\\ 2\cdot \cfrac{1}{sin(\theta )}\implies 2\cdot csc(\theta )\implies 2csc(\theta )[/tex]

Help me plz? I have no clue how

Answers

Take 2 points
(3, 9) and (0, 3)
Slope = (Y2 -Y1) ÷ (X2 -X1)
Slope = (3-9) / (0-3)
Slope = -6 / -3
Slope = 2

The equation will have the form    y = mx + b
We can rearrange this to   b = y -mx
Let's take one of the points (3, 9) and the slope (m) and enter it into the formula:
b = -9 -2*3
b= -3
Now we enter all that data into b = y -mx
and get
y = 2x -3


The sum of three consecutive even integers is 72. Let x represent the first integer, x + 2 represent the second integer, and x + 4 represent the third integer.

Which equation can be used to find the first integer?



3x + 72 = 2x + 6

2x + 64 = 72

3x = 2x + 6

3x + 6 = 72

Answers

3x+6=72 is the right one

The equation 3 x + 6 = 72 be used to find the first integer.

Option 4 is true.

Here,

The sum of three consecutive even integers is 72.

Let x represent the first integer, x + 2 represent the second integer, and x + 4 represent the third integer.

We have to find equation which can be used to find the first integer.

What is Integers?

An integer is a whole number (not a fractional number) that can be positive, negative, or zero.

Now,

The sum of three consecutive even integers is 72.

So,

x + ( x + 2 ) + ( x+ 4 ) = 72

x + x + 2 + x+ 4 = 72

3x + 6 = 72

Hence, The equation 3 x + 6 = 72 be used to find the first integer.

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Simplify r^4st^7 / 5r^5st^3
Simplify 7x^3y^9z^4 /28x^8y^2
Simplify 3a^3b * 2a^2b^4 / a^10b^3c^2
Explain if you can thankyou!!

Answers

Cancel out common factors (subtract exponents of common bases) 
1) r^4st^7 / 5r^5st^3 = st^4 / 5r
2) 7x^3y^9z^4 /28x^8y^2 = y^7z^4 /4x^5
The last one you need to multiply the factors first (add exponents of common factors)
3) 3a^3b * 2a^2b^4 / a^10b^3c^2 = 6a^6b^5/a^10b^3c^2 = 6b^2/a^4c^2

Hope this helps, let me know if you need more explanation!

A repeating pattern of figures that completely covers a plane, without gaps or overlaps, is called a _____ conjecture. transformation. tessellation. composition.

Answers

Answer:A repeating pattern of figures that completely covers a plane, without gaps or overlaps, is called a tessellation.

Step-by-step explanation:

A tessellation of a flat surface is the tiling of a plane using one or more geometric shapes are called tiles, without overlaps or gaps.They can be generalized to higher dimensions and a variety of geometries.

Therefore, A repeating pattern of figures that completely covers a plane, without gaps or overlaps, is called a tessellation.

Is an equation with an integer coefficient will always have an integer solution true or false?

Answers

An equation with an integer coefficient will always have an integer solution. Integers are whole numbers ( positive and negative and zero ). One example of equation:
4 x = 5  ( 4 is an integer coefficient )
x = 5 : 4 = 1.25 ( not an integer )
Answer:
This is false.

What is the period of the function y=5/2 cos x/4?

Answers

8pi

...............................

Jillian’s school is selling tickets for a play. The tickets cost $10.50 for adults and $3.75 for students. The ticket sales for opening night totaled $2071.50. The equation 10.50a + 3.75b = 2071.50, where a is the number of adult tickets sold and b is the number of student tickets sold, can be used to find the number of adult and student tickets. If 82 students attended, how may adult tickets were sold?

adult tickets

Answers

168 adult tickets were sold

Answer: There are 168 adult tickets that were sold.

Step-by-step explanation:

Let the number of adult tickets were sold be 'a'.

Let the number of student tickets were sold be 'b'.

Since we have given that

The ticket sales for opening night totaled as

[tex]10.50a+3.75b=2071.50[/tex]

And the number of students attended  = 82

so, b = 82

So, we will put the value of b in the above equation:

[tex]10.50a+3.75\times 82=2071.50\\\\10.50a+307.5=2071.50\\\\0.50a=2071.50-307.5\\\\10.50a=1764\\\\a=\dfrac{1764}{10.50}\\\\a=168[/tex]

Hence, there are 168 adult tickets that were sold.

The endpoints of line segment RS are R(-2,-1), and S (2,3). Find the coordinates of the midpoint of line segment RS.

Answers

midpoint coordinates are  ( - 2 + 2) / 2 , (-1+3) / 2

                                         =      (0,1) Answer

evaluate a/z+bw^2 for a=21 b=3 w=6 z=7

Answers

(21/7) = 3
(6)^2 = 36

3+3(36) = 111

A fair coin is tossed 10 times. what is the probability of (a) five heads; (b) at least five heads?

Answers

The answer is b to this question

Answer:

Are these all of the options to pick from for this question? If so, then your answer would be A.) five heads.

Explanation:

PLATO

the sum of 18 and the number of x in algebriac expression

Answers

18 + x. Sum is addition, difference is subtraction, product is multiplacation, and quotient is division. Hope this helps!

Select the graph that best represents the solution set for 5x+1≤11

Answers

[tex]5x+1 \le 11[/tex]


[tex]5x+1-1 \le 11-1[/tex] Subtract 1 from both sides


[tex]5x \le 10[/tex]


[tex]\frac{5x}{5} \le \frac{10}{5}[/tex] Divide both sides by 5 to isolate x


[tex]x \le 2[/tex]


To graph this, draw out a number line. Plot a closed circle at 2 on the number line. The closed circle indicates we include this value in the solution set. This is the endpoint. We shade to the left of the endpoint to represent all of the values smaller than 2. The endpoint is included because of the "or equal to" portion of the inequality sign. 

Martin is logging the number of strikes he bowls per hour. He has determined the function to be f(x) = 2x + 5, where x represents hours and f(x) represents the number of strikes he has bowled. Which of the following options describes the restrictions to the domain and range correctly?
Domain, nonnegative values; range, values greater than −2.5
Domain, nonnegative values; range, values greater than or equal to 5
Domain, nonnegative values; range, values less than −2.5
Domain, nonnegative values; range, values less than or equal to 5

Answers

domain (x values) are non-negative values
range (f(x) values are : values greater then or equal to 5

Answer:

B. Domain, nonnegative values; range, values greater than or equal to 5

Step-by-step explanation:

Basically, domain is the set of values that x can take and range is the set of values that the result of f(x) can be.

Since x is the time Martin spends bowling, it cannot be negative. The least he can bowl is zero hours, so x cannot be a negative number.

For the lowest x can be (zero), f(x) is calculated as:

f(x) = 2(0)+5 = 0+5 = 5

For higher values of x, the equation can only yield higher results because the 2 that is multiplying it is positive. Multiplying a two positive numbers (2 and x, which cannot be negative) will always give a positive number. In other words, f(x) is directly proportional to x because its coefficient 2 is positive, which means that when x grows, f(x) grows.

This means that f(x) can never be lower than 5.

The best description is, then, nonnegative values for the domain and values greater or equal to 5 for the range.

Leon correctly found the slope and y-intercept of the line that passes through the points (9, –8) and (3, 4) as follows.

m = -8, -4 = -12
9-3 -6 =-2


y = -2x+b
-8=-2(9)+b
-8= -18+b
10=b

a)y=-2x+10
B) y=-2x+10
C) y= 10x-2
D)y=10x +2

Answers

Answer:

[tex]\displaystyle y = -2x + 10[/tex]

Step-by-step explanation:

The work is already done. This is EXACTLY how you find the parallel line, however, two answer choices are an EXACT REPLICA of each other. Perhaps there was a typographical error?

I am joyous to assist you anytime.

the correct answer is option

a)y=-2x+10.

How do you locate the slope?

pick factors on the line and decide their coordinates. determine the difference in y-coordinates of these two factors (upward thrust). determine the difference in x-coordinates for those two factors (run). Divide the difference in y-coordinates by means of the difference in x-coordinates (upward thrust/run or slope).

How do u find slope-intercept shape?

resolve for the slope (m). recollect, the slope is equal to the alternate in y divided with the aid of the change in x (upward push overrun).remedy for the y-fee of the y-intercept (b). replace m and b with their values inside the y=mx+b system.

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Solve algebraically for x

Answers

3x + 1 = (x-1)^2
3x + 1 = x^2 - 2x + 1
0 = x^2 -5x
0 = x(x-5)
x = 0,5

Hope this helps!

Determined whether the graphs of each pair of equations are parallel, perpendicular or neither

Answers

One way to look at it would be to solve for y - if what x is multiplied by is the same for both sides, they're parallel. If one is the negative reciprocal (e.g. for 5/6 the reciprocal is 6/5 and the negative reciprocal is therefore -6/5) of another, they're perpendicular and if they're neither they're neither.Solving for y in x+5y=4, we can subtract x from both sides to get 5y=-x+4. Next, we can divide both sides by 5 to get -x/5+4=y. Since -x/5=(-1/5)(x) and -1/5 is not the negative reciprocal of 5/6 as established earlier, they are neither

The difference between Alan's and Bea's age is three years. The sum of their ages is twenty-seven years. How old are they if-
A. Alan is older than bea?
B. Bea is older than Alan?

Answers

Alright. Take x as Alan's age, and y as Bea's age. We can start writing equations; from the first sentence, we find that x - y = 3. From the second sentence, x + y = 27. Adding the two equations, gives 2x = 30. Thus, x is 15, and it follows, that y = 15 - 3, or 12. So for A, Alan is 15, and Bea is 12, and for B, Bea is 15, and Alan is 12.
a - b = 3
a + b = 27
--------------add
2a = 30
a = 30/2
a = 15 <=== alan is 15

a + b = 27
15  + b = 27
b = 27 - 15
b = 12 <=== bea is 12 

What makes an irrational number irrational?

Answers

If written as a decimal, a irrational number would have an infinite amount of digits (note that this does not make it a irrational number). In addition (this DOES make it a irrational number), it cannot be equal to one integer divided by another.

Answer:

Step-by-step explanation:

How to get the B by itself

Answers

(a + b + c)/3 = A

(a + b + c)/3 x 3 = A x 3

a + b + c = A(3)

 a- a + b + c - c = A(3) - a - c

b = A(3) - a - c

hope this helps


( i dont know if the A is suppose to be there or not sorry)

A baseball team has home games on thursdaythursday and saturdaysaturday. the two games together earn ​$4285.004285.00 for the team. thursdaythursday​'s game generates ​$295.00295.00 less than saturdaysaturday​'s game. how much money was taken in at each​ game?

Answers

1,995 for each game.
1,995+1,995=3,990
3,990+295=4,285.00

A ball is launched into the sky at 19.6 feet per second from a 58.8 meter tall building. The equation for the ball’s height, h, at time t seconds is h = -4.9t2 + 19.6t + 58.8 . When will the ball strike the ground?

Answers

A ball is launched into the sky at 19.6 feet per second from a 58.8 meter tall building. " 

Is that a typo, or a real mixture of units? 

The equation is only good if the launch speed is actually 19.6 m/s, so I'll assume that. 

It will strike the ground when the ball's height = 0 m !!! 

-4.9t² +19.6t + 58.8 = 0 

You can always use the "quadratic formula" if you want to, but ... 

This set of numbers is beloved by physics teachers everywhere. Everything divides by -4.9 

t² - 4t -12 = 0 

...and factorizes easily: 

(t + 2)(t - 6) 

So t = 6 or t = -2 Disregard the negative solution. 

The ball will strike the ground at t = 6 seconds

Simplify -|-5 + 2|.
a)-7
b)-3
c)3
d)7

Answers

- | -5 + 2 | = - 3....the reason it is -3 is because the first negative sign falls outside of the absolute value bars.

if it would have been | - (-5 + 2) | ur answer would have been 3 because the negative sign fell in ur absolute value bars.
Step 1. Simplify [tex]-5+2[/tex] to [tex]-3[/tex]

[tex]-|-3|[/tex]

Step 2. Simplify [tex]|-3|[/tex] to [tex]3[/tex]

[tex]-3[/tex]

Done! :)

What is the measure of 1 (1 point) 45 60 120 125?

Answers

Answer:

120°

i finished the quiz and that what i got

and for the rest

1.b

2.d

3.a

4.c

and number 5 is the first answer that i wrote

Step-by-step explanation:

What is the algebraic expression for the following word phrase: the quotient of j and 8

A.j-8
B.j+8
C.j
-
8
D.8j

Answers

[tex] \frac{j}{8} [/tex]

This is the correct algebraic expression for the quotient of j and 8. Quotient is just a fancy term for the answer to a division problem.

Answer:

[tex]\frac{j}{8}[/tex]

Step-by-step explanation:

the quotient of j and 8

We need to write the given word phrase in algebraic expression

Algebraic expression contains terms with numbers and variables with operators in between.

In the given word phrase , 'j' is the variable

quotient occurs only on division . so we divide 'j' and 8

The expression for word phrase the quotient of j and 8 is

[tex]\frac{j}{8}[/tex]

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