Answer:
Step-by-step explanation:
y = x+3 because when : x = 3 y = 3+3=6
y=2x because when : x = 3 y = 2(3)=6
325.876 in expanded from using decimals
300+20+5+0.8+0.07+0.006
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Please help me answer these:
(8.18*10^-6)(1.15*10^-5)
and
1.15*10^-7
_______
2.5*10^-3 It's scientific notation and please explain your answer
Answer:
for the first one 9.407×10^−11
Step-by-step explanation:
Final answer:
To multiply numbers in scientific notation, multiply the coefficients and add the exponents. To divide, divide the coefficients and subtract the exponents. Ensure the final coefficient is between 1 and 10 for proper scientific notation.
Explanation:
To answer the question regarding scientific notation, I'll demonstrate the steps using the examples you provided. Remember that when multiplying numbers in scientific notation, you multiply the coefficients (the numbers in front) and then add the exponents.
(8.18 × 10^-6)(1.15 × 10^-5) = (8.18 × 1.15) × (10^-6 × 10^-5) = 9.407 × 10^-11. Since the coefficient 9.407 is between 1 and 10, this is in proper scientific notation.
To divide two numbers in scientific notation, you divide the coefficients and subtract the exponents: (1.15 × 10^-7) ÷ (2.5 × 10^-3) = (1.15 ÷ 2.5) × (10^-7 − (-3)) = 0.46 × 10^-4. Since the coefficient 0.46 is not between 1 and 10, we need to adjust it to proper scientific notation, which would be 4.6 × 10^-5.
what is the value of 3 times 10 to the negative 5th power
1) What is the value for the digit 8 in the given number?
38.165.0479
Answer:
The value of the 8 in the number 38.165.0479 is 8 ones
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Simplify -(x-2y) - y.
Answer:
Step-by-step explanation:
x(x-2y)-(y-x)2
Final result :
-y2
Step by step solution :
Step 1 :
Equation at the end of step 1 :
x • (x - 2y) - (y - x)2
Step 2 :
2.1 Evaluate : (y-x)2 = y2-2xy+x2
Final result :
-y2
Answer: I think the answer is -x + y.
Step-by-step explanation:I think this is the answer because you first start off by distributing all the variables inside the parenthesis by the negative sign which would give you -x+2y-y. After that, you would have to subtract 2y-y because they share the same variable and you must have a SIMPLIFIED ANSWER. So with that said, your overall answer should be -x+y. Hope I'm right in giving you the correct answer!!!!
Expanded form of 680,705
[tex]\huge\boxed{600,000 + 80,000 + 700 + 5}[/tex]
To find expanded form, we need to split up the digits. When you do that, you take one digit and cut off everything to the left of it, then make everything to the right zeros.
[tex]600,000 + 80,000 + 0 + 700 + 0 + 5[/tex]
We don't need to keep the zeros.
[tex]\boxed{600,000 + 80,000 + 700 + 5}[/tex]
We can check this by adding the numbers back up to get [tex]680,705[/tex].
[tex]680,000 + 700 + 5[/tex]
[tex]680,700 + 5[/tex]
[tex]680,705[/tex]
Reduce the fractions 32/68,22/28, and
21/49
32/68- divide by 4 . 32/4=8, 68/4=17
22/28- divide by 2. 22/2=11, 28/2=14
21/49- divide by 7. 21/7=3, 49/7=7
Answers:
32/68=8/17
22/28-11/14
21/49=3/7
Step-by-step explanation:
[tex]\dfrac{32}{68}=\dfrac{32:2}{68:2}=\dfrac{16:2}{34:2}=\dfrac{8}{17}\\\\\\\dfrac{22}{28}=\dfrac{22:2}{28:2}=\dfrac{11}{14}\\\\\\\dfrac{21}{49}=\dfrac{21:7}{49:7}=\dfrac{3}{7}[/tex]
name the property that is shown by the following expression (9x3)x4=9x(3x4)
the associative property is used.
Which property is used in the expression?
The Associative property of multiplication says that (a × b) × c = a × (b × c),
so we can perform the multiplication in any order we want.
If you look at the expression:
(9x3)x4=9x(3x4)
The difference is that first we start with the product 9×3, and in the right side the first product we need to solve is 3×4, so the associative property is used.
A carpenter goes through 2 2 ⁄6 boxes of nails finishing 3 1 ⁄4 rooves. How much would he use finishing 2 rooves?
Answer:
1 17/39 boxes.
Step-by-step explanation:
3 1/4 rooves requires 2 2/6 boxes
So 2 rooves require 2 * 2 2/6 / 3 1/4 boxes.
= 2 * 14/6 / 13/4
= 28/6 * 4/13
= 56/39
= 1 17/39 boxes.
The question involves calculation of usage rate per roof by dividing the total boxes used by the number of rooves completed and then applying that rate to determine number of boxes needed for 2 rooves.
Explanation:The question asks how many boxes of nails a carpenter would use for 2 rooves if he goes through 2 2/6 boxes to complete 3 1/4 rooves. To find out the number of boxes needed for 2 rooves, we need to calculate the rate of nail box usage per roof and then apply that rate to 2 rooves.
First, we simplify 2 2/6 to a mixed number: 2 1/3.
Then we divide the number of boxes by the number of rooves to get the usage rate per roof:
2 1/3 boxes ÷ 3 1/4 rooves = usage rate per roof.
Once we get the usage rate, we multiply it by 2 to find the boxes needed for 2 rooves.
This process involves converting mixed numbers to improper fractions, performing division, and then multiplication.
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Solve for m.
m - 5= √49
A.m=2
B.m=7
C.m=12
D.m=35
Answer:
C
Step-by-step explanation:
The square root of 49 equals 7
This equation can be rewritten as m-5=7
m-5=7
1) add 5 to both sides:
m=12
Nothing else can be done so m=12 is your final answer (c)
53.010,000 in scientific nottation
It's 5.3*10^7. In Scientific Notation, you will be moving the decimal place until you have a number between 1 and 10. Then you add a the power of ten to show how many places you moved. For example, in Scientific Notation 52,314 with be moved left to get 5.2314*10^4. The decimal can be moved in either or direction depending on the problem. Hope this helps, have a nice day!
missing length??
3 cm
8 cm
i need big help
Answer: 8.5 (rounded)
Step-by-step explanation:
a squared + b squared = c squared
3 squared= 9
8 squared= 64
64+9=73
the square root of 73 is 8.5 (rounded)
Simplify:(-3x)(-2x5)
Answer: 30x
Multiply
−
2
by
5
.
−
3
x
⋅
−
10
Multiply
−
10
by
−
3
.
30
x
Answer:
6[tex]x^{6}[/tex]
Step-by-step explanation:
Using the rule of exponents
[tex]a^{m}[/tex] × [tex]a^{n}[/tex] ⇔ [tex]a^{(m+n)}[/tex]
Given
(-3x)(-2[tex]x^{5}[/tex])
= - 3 × [tex]x^{1}[/tex] × - 2 ×[tex]x^{5}[/tex]
= (- 3 × - 2) × [tex]x^{(1+5)}[/tex]
= 6[tex]x^{6}[/tex]
15 divided by a number r
Answer:
6
Step-by-step explanation:
URGENT These are just 3 easy fill in the blank math problems. Integers
1. When adding *blank* signs in addition you should add and keep the sign
2. When subtracting integers you can change the minus to a plus and take the *blank* of the next number. Then follow addition integer rules.
3. When adding *blank* signs in addition you should subtract and keep the sign of the larger number
Answer:
Bedhshshhssjbsbwbsbw
Step-by-step explanation:
Fhdhshhehehehehehehshehs
Natalie read 3 4 of a book that is 120 pages long. How many pages does she have left to read?
Answer:30
Step-by-step explanation:
120 divided by 4
Answer:
30 pages
Step-by-step explanation:
if natalie has read 3/4 pages of a book it means that she only remains with 1/4 pages of the book for her to complete reading the book.
therefore if the book is made of 120 pages ,what is the 1/4 of the total 120 pages.
= 1/4 * 120pages
= 30 PAGES
PLEASE HELP! ILL MARK BRAINLIEST!
Describe how to transform the graph of f into the graph of g. f(x) = x^4 and g(x) = -(-x)4
Reflect the graph of f across the x-axis and then reflect across the y-axis.
Shift the graph of f down 1 unit.
Reflect the graph of f across the x-axis.
Reflect the graph of f across the y-axis.
Answer:
Reflect the graph f(x) across the x axis to obtain the graph g(x).
its c
Step-by-step explanation:
following the accepted steps you would first reflect the graph across the y axis due to the negative sign within the function, then you would reflect the result across the x axis due to the negative sign outside of the function.
In practice however you only need to reflect across the x axis as -(-x)^2 simplifies to -x^2
Which set of diagrams shows a balanced chemical equation?
A : Diagram A
B : Diagram B
C : Diagram C
D : Diagram D
Answer: this is for the whole gizmo
1. C
2. B
3. D
4. A
5. D
Step-by-step explanation:I hope this can help everybody.
Wilson has already prepared 2 kilograms of dough and will continue preparing 1 kilogram of
dough every hour. How much dough did Wilson prepare if he worked for 4 hours?
Answer:
6 kilograms
Step-by-step explanation:
He starts with 2.
He makes 1 every hour.
He works for 4 hours.
So, we can infer that he makes 4 kilograms within the 4 hours he works. Then, we see that he has already made 2 kilograms. So, you add up those two, giving you 6. Hope this helps!
Which of the following is most likely the next step in the series?
оооо
Answer:
Answer would be B.
Step-by-step explanation:
Derive the equation of the parabola with a focus at (−2, 4) and a directrix of y = 6. Put the equation in standard form.
f(x) = one fourthx2 − x + 4
f(x) = −one fourthx2 − x + 4
f(x) = one fourthx2 − x + 5
f(x) = −one fourthx2 − x + 5
Answer:
B
Step-by-step explanation:
From any point (x, y) on the parabola the focus and directrix are equidistant.
Using the distance formula
[tex]\sqrt{(x+2)^2+(y-4)^2}[/tex] = | y - 6 |
Squaring both sides
(x + 2)² + (y - 4)² = (y - 6)² ← distributing
x² + 4x + 4 + y² - 8y + 16 = y² - 12y + 36 ( subtract y² - 12y + 36 from both sides )
x² + 4x + 4 + 4y - 20 = 0 ( subtract x² + 4x + 4 from both sides )
4y - 20 = - x² - 4x - 4 ( add 20 to both sides )
4y = - x² - 4x + 16 ( divide through by 4 )
y = - [tex]\frac{1}{4}[/tex] x² - x + 4, that is
f(x) = - [tex]\frac{1}{4}[/tex] x² - x + 4 → B
Answer:
Option B
Step-by-step explanation:
Given that a parabola has a focus at (−2, 4) and a directrix of y = 6.
We have to find the equation of the parabola in std form
We know that a parabola is a conic section in which all points are equidistant from the focus and vertex.
Let (x,y) be any point on the parabola
Distance of (x,y) from the focus =[tex]\sqrt{(x+2)^2+(y-4)^2}[/tex] ...i
Distance of (x,y) from directrix = difference in y coordinate = [tex]|y[-6|[/tex]...ii
Since i = ii, square and equate both
[tex](x+2)^2+(y-4)^2=(y-6)^2\\x^2+4x+4 -8y+16 = -12y+36\\4y=-x^2-4x+16\\y = \frac{-1}{4} d^2-x+4[/tex]
Hence option B is right.
6h-3=7h-13
step by step pleasee
Answer:`13H
Step-by-step explanation:
Answer: h=10
Step-by-step explanation:
6h-3=7h-13
-3+13=7h-6h
10=h
h=10
6. Which property is illustrated by the equation
ma + mb = m(a + b)?
what’s the answer
Step-by-step explanation:
It's the DISTRIBUTIVE PROPERTY:
m(a + b) = ma + mb
[tex]m\cdot(a+b)=m\cdot a+m\cdot b=ma+mb[/tex]
Other properties:
Commutative Property:
of addition: a + b = b + a
of multiplication: a · b = b · a
Associative Property:
of addition: (a + b) + c = a + (b + c)
of multiplication: (a · b) · c = a · (b · c)
What does distributive property look like
Answer:
The distributive property lets you multiply a sum by multiplying each addend separately and then add the products. ... Consider the first example, the distributive property lets you "distribute" the 5 to both the 'x' and the '2'.
Step-by-step explanation:
Answer: 4(x-3)=20
4x-4(3)=20
4x-12=20
4x-12+12=20+12
4x=32
4x/4 = 32/4
x=8
Step-by-step explanation:
To “distribute” means to divide something or give a share or part of something.
The estimated answer to a multiplication problem is 800,000. Which of the following expressions could result in this answer? Explain how you know.
8,146 x 12
81,467 x 121
8,146 x 121
81,477 x 1,217
Answer:
8,146 x 121
Step-by-step explanation:
This is a problem in which you need to measure your understading of "orders of magnitude."
If the estimated answer is [tex]800000[/tex] that means that we are looking at a multiplication in the "order of" [tex]8*10^5[/tex]
You need to look at the "orders of magnitude" of the things you're multiplying. In the first case, we have [tex]8146*12[/tex] that would be "of the order of" [tex]8*10^3[/tex] times [tex]10^1[/tex]. So the whole multiplication would "of the order of" [tex]8*10^4[/tex] or near [tex]80000[/tex]
The correct answer, 8,146 x 121, is because it's "of the order of" [tex]8*10^3[/tex] times [tex]10^2[/tex] and the gives us the [tex]8*10^5[/tex] we need.
Answer:
Step-by-step explanation:
88
Which equation could be solved using the graph above?
X^2+x-2=0
X^2+2x+1=0
X^2-1=0
X^2-2x+1=0
The equation that could be used to solve the graph above is x² - 1 = 0.
What is a quadratic equaton?A quadratic equation is an algebraic expression in the form of variables and constants.
A quadratic equation has two roots as its degree is two.
The graph of a quadratic equation y = x² is a parabola that opens upwards.
By observing the graph we conclude that when x = 0, y = - 1 and when
x = ± 1, y = 0.
Now going through the options we conclude that x² - 1 = 0 is the equation that satisfies this criterion.
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The equation that can be solved using the graph is x^2 - 2x + 1 = 0.
Explanation:The equation that could be solved using the graph above is x2 - 2x + 1 = 0. This is because the graph intersects the x-axis at the point where y=0, and this represents the solutions to the equation.
If we solve the equation x2 - 2x + 1 = 0 using factoring or the quadratic formula, we would find that the solutions are x=1 and x=1. These are the same x-values where the graph intersects the x-axis on the graph provided.
The other equations, x2 + x - 2 = 0, x2 + 2x + 1 = 0, and x2 - 1 = 0, do not have solutions that match the x-values where the graph intersects the x-axis.
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HELP! Consider the function represented by the graph. On a coordinate plane, a straight line with a negative slope begins on the y-axis at (0, 9) and exits the plane at (8, 1). What is the domain of this function?
Answer:
{ x | x ≥ 0 }
Step-by-step explanation:
Given,
There is a straight line started from (0, 9) and passes through (8, 1),
∵ In the coordinate plan, the values of x are arranged in increasing order to the right side of the y-axis,
Thus, the line is defined for all real values of x greater than 0,
Hence, Domain of the line = All real numbers greater than equal to 0,
i.e. { x | x ≥ 0 }
Thus, FIRST OPTION is correct.
Answer:
Its A
Step-by-step explanation:
Solve number 20
traingle ABC with C=90 slove for the missing part
PLEASE HELP!!
Answer:
A ≈ 69.5°
Step-by-step explanation:
Given the triangle is right use the cosine ratio to find A
cosA = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{AC}{AB}[/tex] = [tex]\frac{2.7}{7.7}[/tex], thus
A = [tex]cos^{-1}[/tex] ( [tex]\frac{2.7}{7.7}[/tex] ) ≈ 69.5° ( to 1 dec. place )
80% of ____games is 32 games
Answer:
If its multiplying then 40 if adding then 31.2
Step-by-step explanation:
Put 80 over 100
simplify to get 4/5x = 32
Multiply both sides by 5/4 (because you flip)
the fives cancel out and the fours
then you have x=5/4 x 32
four goes into 32 making it x=5 x 8
5x8=40
:)
Answer:
The answer is 40.
Step-by-step explanation:
80% + 20% = 100%
80% ÷ 20% = 4
32 ÷ 4 = 8
32 + 8 = 40
100% = 40
I need to know the answers of 10, 12, and 14
Answer:
10: 2
12: 0
14: 24