Answer:
430 billion (430,000,000,000) is 4.3 x 10^11 in scientific notation
To convert 430 billion into scientific notation, express it as 4.3 multiplied by 100 billion. In scientific notation, 100 billion becomes 10^11. Therefore, the scientific notation of 430 billion is 4.3 x 10^11.
Explanation:The process of writing large numbers or small numbers in scientific notation involves expressing the number as a product of a number between 1 and 10 (inclusive) and a power of 10. To write 430 billion dollars in scientific notation, firstly express it as 4.3 multiplied by 100 billion. In scientific notation, 100 billion is 10^11. So, Amazon's worth in scientific notation is 4.3 x 10^11.
Learn more about Scientific Notation here:
https://brainly.com/question/2005529
#SPJ2
While exercising, a person’s recommended target heart rate is a function of age. The recommended number of beats per minute, y , is given by the function y=f(x)=−0.85x+187 where x represents a person’s age in years. Determine the number of recommended heart beats per minute for your age. Show each step in the process of this calculation.
x=21
Answer:
170 heart beat per minute.
Step-by-step explanation:
While exercising, a person’s recommended target heart rate is a function of age. The recommended number of beats per minute, y, is given by the function y = f(x) = − 0.85x + 187 where x represents a person’s age in years.
So, if my age is 21 years i.e. x = 21, then the number of recommended heart beats per minute for my age will be
y = f(21) = - 0.85(21) + 187 = - 17.85 + 187 = 169.15 ≈ 170. (Answer)
{Taking the larger integer value}
Which inequality is represented by the graph?
A. y>−32x−2
B. y≤−32x−2
C. y≥−32x−2
D. y<−32x−2
Inequality that represents the graph
[tex]y>\:-\frac{3}{2}x-2[/tex]
Option A
Explanation :
Given the graph of a linear inequality
Lets frame the linear equation of the dotted line first
Slope intercept form of linear equation is y=mx+b
where m is the slope and b is the y intercept
In the graph y intercept is -2. So value of b=-2
Now find out slope m using any two point on the dotted line
Lets pick (0,-2) and (-2,1)
slope formula
[tex]\frac{y_2-y_2}{x_2-x_1}[/tex]
Substitute the values of two points and find out slope
[tex]slope =\frac{y_2-y_2}{x_2-x_1}=\frac{1+2}{-2-0}=-\frac{3}{2}[/tex]
Now replace the values in equation y=mx+b
[tex]y=-\frac{3}{2} x-2[/tex]
In the graph we have dotted line so we use < or >
Lets use test point (0,0) origin.
x=0 and y=0
[tex]y=-\frac{3}{2} x-2\\0=-\frac{3}{2} (0)-2\\0=-2\\0>-2\\[/tex]
So the inequality becomes
[tex]y>-\frac{3}{2} x-2[/tex]
Learn more : brainly.com/question/5529505
es -
Two linear functions of x are shown.
Which statement about the functions is true?
Function 2 can be described by the equation y= 25x - 100.
Function 2 can be described by the equation y = 13x - 11.
The y-intercept of function 1 is less than the y-intercept of function 2.
Rate of change of function 2 is less than the rate of change of function 1.
Answer:
The answer is D
Step-by-step explanation:
Answer:
THE ANSWER D ON USATESTPREP
plz help i will mark brainliest
Answer:
x = 9.
Step-by-step explanation:
42 - 15 = 27
27 ÷ 3 = 9
in the problem 19.28 - 1.546, first round each number to the nearest tenth. Then subtract.
Answer:
17.8
Step-by-step explanation:
First, round the two. umbers to the nearest the th, or the first number past the decimal. 19.28 rounds to 19.3 (round up because 8 is bigger than 5) and 1.546 rounds to 1.5 (round down because 4 is smaller than 5). Then subtract. 19.3 - 1.5 = 17.8
Find the slope of the line that passes through (2,11) and (7,9).
[tex]\bf (\stackrel{x_1}{2}~,~\stackrel{y_1}{11})\qquad (\stackrel{x_2}{7}~,~\stackrel{y_2}{9}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{9}-\stackrel{y1}{11}}}{\underset{run} {\underset{x_2}{7}-\underset{x_1}{2}}}\implies \cfrac{-2}{5}[/tex]
Answer:
it should be -2/5 if you're looking for the slope
For what value of the variable the value of the expression 4(5x–8) is 4 more than the value of the expression 2(4–x)?
Fastest answer and right answer will be awarded Brainliest!
For x=2, the value of the expression 4(5x–8) is 4 more than the value of the expression 2(4–x)
Step-by-step explanation:
We have to convert the given statement in mathematical or algebraic form to get the value of x for which the given condition is true.
So,
The problem can be written as:
[tex]4(5x-8) = 2(4-x)+4[/tex]
Applying distributive property
[tex]20x-32 = 8-2x+4\\20x-32 = 12-2x\\[/tex]
Adding 32 on both sides
[tex]20x-32+32 = 12-2x+32\\20x = 44-2x[/tex]
Adding 2x on both sides
[tex]20x+2x = 44-2x+2x\\22x=44[/tex]
Dividing both sides by 22
[tex]\frac{22x}{22} = \frac{44}{22}\\x = 2[/tex]
Hence,
For x=2, the value of the expression 4(5x–8) is 4 more than the value of the expression 2(4–x)
Keywords: Linear equation, variables
Learn more about linear equation at:
brainly.com/question/10364988brainly.com/question/10435816#LearnwithBrainly
Statement:5>4
Which is greater 5x or 4x
Answer:
5x
Step-by-step explanation:
Because the inequality sign means it greater and if it turned around than it means it less than and the = sign means it equal to
If x is positive, 5x is greater than 4x and if x is negative, 5x is less than 4x.
To determine whether 5x is greater than 4x, we need to consider the value of "x." The comparison between 5x and 4x depends on the value of "x."
If x is a positive number, then 5x will be greater than 4x because 5 is larger than 4, and multiplying by a positive number increases the value.
For example:
If x = 1, then 5x = 5, and 4x = 4. Since 5 is greater than 4, 5x is greater than 4x.
If x is a negative number, then 5x will be less than 4x because multiplying by a negative number changes the inequality sign.
For example:
If x = -1, then 5x = -5, and 4x = -4. Since -5 is less than -4, 5x is less than 4x.
Thus, it can be concluded that
If x is positive, 5x is greater than 4x. If x is negative, 5x is less than 4x.
Learn more about positive integers here:
https://brainly.com/question/31414162
#SPJ4
-x + y = 8
1/2x - 1/2y = 3
Do these equations have one solution, no solution, or infinitely many solutions?
Answer:
No solution
Step-by-step explanation:
-x + y = 8..............(1)
1/2x - 1/2y = 3......(2)
Multiply (2) by 2
x - y = 6 ............(3)
Adding (1) and (3)
-x + x + y - y = 8 + 3
x and y are both eliminated so no solution
find the slope of -1 / 3 + 3 / -2
Answer:
-1.83 (repeating decimal)
Step-by-step explanation:
Miriam is driving to Austin. This is what her gas gauge looks like when she stops for lunch. What fraction of her gas tank is filled?
A 1/4
B 1/5
C 1/3
D 3/4
PLEASE ME ANSWER!
Answer:
A. 1/4
Step-by-step explanation:
The attached picture is the complete question:
As you can see in the picture, the guage is divided into 4. The indicator is pointed at the at the first notch, from the empty area. This means that when it was full, it was at 4/4, as it goes towards empty, the notches decrease by 1/4. It is now on the 1st notch, that means that it is filled 1/4 or there is 1/4 left.
On a weather map,an isobar connects places with the same
Answer:
pressure
Step-by-step explanation:
the root words for isobar are
iso - same or equal
bar - pressure (from greek "baros")
Answer:
Pressure
Step-by-step explanation:
A pound of chocolate costs 7 dollars. Keiko buys p pounds. Write an equation to represent the total cost c that keiko pays.
Answer:
7xp=c
Step-by-step explanation:
since you have to multiply p by 7. to get the answer is c. Take for example
7 x 3 =21
p=3
c=21
which of the binomials below is a factor of this trinomial? x^2+12x+35
Answer:
(x+5) (x+7)
Step-by-step explanation:
Enter the numerator and the denominator of the fraction in simplest form that is equal to the decimal shown.
0.63
To convert the decimal 0.63 to a fraction, write it as 63/100, and simplify if possible. Since 63 and 100 do not have a common divisor larger than 1, the fraction is already in its simplest form, which is 63/100.
Explanation:The question involves converting a decimal to a fraction in simplest form. To convert the decimal 0.63 into a fraction, you can write it as 63/100 because there are two digits after the decimal point, which equates to the hundredth place. To simplify the fraction, you look for the greatest common divisor (GCD) of both the numerator and the denominator. In this case, both 63 and 100 can be divided by the GCD which is 1. Thus, the fraction is already in its simplest form and the answer is 63/100.
The decimal 0.63 written as a fraction in simplest form is 63/100, which cannot be reduced further since 63 and 100 share no common factors other than 1.
Explanation:The numerator and denominator of the fraction in simplest form that is equal to the decimal 0.63 can be found by moving the decimal point two places to the right. This gives us the fraction 63/100 which can be simplified to 9/15 by dividing both the numerator and denominator by the greatest common factor, which is 9. To convert the decimal 0.63 into a fraction in simplest form, you can start by writing it as ⅓ over 100, since the last digit is in the hundredths place. This gives you the fraction 63/100. However, the question asks for the simplest form, so you should reduce the fraction by finding the greatest common factor of the numerator and denominator.
The greatest common factor of 63 and 100 is 1, so 63/100 cannot be reduced any further - it is already in its simplest form. Thus, the answer is simply ⅓ over 100 or 63/100.
the left and right page numbers of an open book are two consecutive integers whose sum is 169. find the numbers.
Answer:
84 and 85
Step-by-step explanation:
84+85=169
Simplify:
11 - 3x - 2 + 18x
what is the answer
Step-by-step explanation:
11-2 = 9
18x-3x = 15x
so, 15x+9 or 3(5x+3)
The simplified expression is 15x + 9.
To simplify the given expression, we combine like terms. The expression given is:
[tex]\[ 11 - 3x - 2 + 18x \][/tex]
First, we combine the constant terms (11 and -2):
[tex]\[ 11 - 2 = 9 \][/tex]
Next, we combine the terms with the variable x (which are -3x and 18x):
[tex]\[ -3x + 18x = 15x \][/tex]
Now, we combine the constant term with the x term:
[tex]\[ 9 + 15x \][/tex]
So, the simplified form of the expression is:
[tex]\[ 15x + 9 \][/tex]
84 is what percent of 105?
Answer:
80%
Step-by-step explanation:
84/105=0.8
0.8=80%
Answer:
The answer is 80 percent
what is the value of s+t-u if s= 12,t=8,and u=20
Answer:
0
Step-by-step explanation:
12 + 8 = 20
If we then take 20 from 20, you get 0.
Answer:
Answer is 0
Step-by-step explanation:
[tex]s + t - u \\ 12 + 8 - 20 \\ 20 - 20 = 0[/tex]
distributive property to match equivalent expression -7(4-+x)
5x−7=−10x+8
x = ___
(type your answer as a number)
Answer:
x=1
Step-by-step explanation:
5x-7=-10x+8
5x=−10x+8+7
5x=−10x+15
5x+10x=15
15x=15
Answer: x=1
Answer:
x = 1
Step-by-step explanation:
Put the like terms to same side of equation
5x -7 = -10x +8 ➡ 5x + 10x = 8 + 7
15x = 15
x = 1
Open Response 2
A glass containing water is in the shape of a right circular cylinder with a radius
of 3 centimeters. The height of the water in the glass is 10 centimeters.
a) What is the volume of the water in the glass? Be sure to include units of
measure in your answer. Show or explain how you obtained your answer.
b) Five spherical marbles of equal size are dropped into the glass. The water in
the glass rises to a height of 11 centimeters. What is the increase in the
volume of the contents of the glass? Be sure to include units of measure in
your answer. Show or explain how you obtained your answer.
c) What is the volume of one of the marbles? Be sure to include units of
measure in your answer. Show or explain how you obtained your answer.
d) What is the radius of one of the marbles? Be sure to include units of
measure in your answer. Show or explain how you obtained your answer.
Answer:
b
Step-by-step explanation:
70.5 - 6.81 =
63.69
63.71
64.69
77.31
Answer:
63.69
Step-by-step explanation:
X is less than equal to nine in greater than four
What is 7y + 12 - 6 +(-8y)
Answer:
-1y+6
Step-by-step explanation:
Here’s why:
Combine like terms. -8y and 7y added together becomes -1y giving the first term.
The second term is from subtracting 12 and 6.
Hope this helps!
Answer:
-y + 6
Step-by-step explanation:
7y + 12 - 6 + (- 8y) =
7y + 12 - 6 - 8y =
7y - 8y = -y
12 - 6 = 6
- y + 6
What does 18A +16B mean
Answer:
It is an Algebraic Expression
Explanation:
An algebraic expression is a mathematical expression that consists of variables, numbers and operations.
Please help!!
What is the location of the point on the number line that is 4/9 of the way from
A= -8 to B = 10?
Ο Α. 0
OB. 2
O c. -2
O D. -1
Answer:
Α. 0
Step-by-step explanation:
Given A = -8 and B = 10
The distance between A and B
= B - A
= 10 - (-8)
= 10 + 8
= 18 units
4/9 of the way between A and B
= 4/9 of the distance between A and B
= 4/9 x 18 units
= 8 units.
Hence the location of the point that is 4/9 of the way from A to B
= value at point A + 8 units
= -8 + 8
= 0 (answer)
A. 0
Step-by-step explanation:
The answer is 0 (zero)
Find the x-component of this vector:
Answer: -13.9
This value is approximate.
==================================================
Explanation:
This angle is in quadrant Q2, which is where x is negative and y is positive.
The angle shown of 65 degrees is added to the 90 degree angle to the right resulting in 65+90 = 155 degrees overall. See diagram below.
The x component of the vector is found by the formula
x = r*cos(theta)
we will plug in r = 15.3 as the magnitude of the vector and theta = 155 as the angle
x = 15.3*cos(155)
x = -13.8665 approximately
x = -13.9 rounding to one decimal place (as 15.3 and 65.0 are both rounded to one decimal place)
1. Which equation represents a linear function?
a. 3y + x2 + x = 0
b. 4x + 2(y – 1) = 0
c. y = 12vx – 5
d. 2x3 + y = 9
Answer:
b.
Step-by-step explanation:
4x + 2(y – 1) = 0
The variables are all of unit degree so it is linear.
Will mark as BRAINLIEST!!
Answer:
a= 2s-b-c
Step-by-step explanation:
s=a+b+c/2
1) Multiply everything by 2, to get rid of the /2.
2s=a+b+c
2s-b=a+c
2s-b-c=a
Answer:
Its D TRUST ME IT IS
Step-by-step explanation:
He messed up but i got it right