Answer:
1.3x10^-6
Step-by-step explanation:
Use a calculator.
0.00065/5 will give you 0.00013 which can be written as 1.3x10^-4 and multiply that by 10^-2, you will add the exponents -4+-2 and get -6 as your new exponent, ending with 1.3x10^-6
Answer:
The one above is incorrect, the answer is:
1.3 x 10-2
220.4% as a decimal?
Answer: 2.204
Step-by-step explanation:
Consider the multivariable function f\left(x,y,z\right)=\frac{x^3-2.5y^2+\frac{z}{2}}{z\left(x-y\right)}f ( x , y , z ) = x 3 − 2.5 y 2 + z 2 z ( x − y ). Evaluate f\left(2,3,1\right)f ( 2 , 3 , 1 ). Round your answer to two decimal places.
Answer:
[tex]f\left(2,3,1\right)=\bold{14}[/tex]
Step-by-step explanation:
Given the function:
[tex]f\left(x,y,z\right)=\frac{x^3-2.5y^2+\frac{z}{2}}{z\left(x-y\right)}[/tex]
To find:
The value of [tex]f(2, 3, 1)[/tex] = ?
Solution:
[tex]f(2, 3, 1)[/tex] means the values of [tex]x, y\ and\ z[/tex] as:
[tex]x=2\\y=3\\z=1[/tex]
Let us put the given values in the given function and let us solve for it:
[tex]\Rightarrow f\left(2,3,1\right)=\dfrac{2^3-2.5\times 3^2+\frac{1}{2}}{1\left(2-3\right)}\\\\\Rightarrow f\left(2,3,1\right)=\dfrac{8-2.5\times 9+0.5}{1\left(-1\right)}\\\\\Rightarrow f\left(2,3,1\right)=\dfrac{8-22.5+0.5}{-1}\\\\\Rightarrow f\left(2,3,1\right)=\dfrac{-14}{-1}\\\\\Rightarrow f\left(2,3,1\right)=\bold{14}[/tex]
Therefore, the answer is:
[tex]f\left(2,3,1\right)=\bold{14}[/tex]
Which product is the better deal 60 oz for $7.20 or 75 oz for $8.25
The better deal
Would be the lowest cost per ounce.
Divide total cost by total ounces and compare them.
7.20/60 = 0.12 per ounce.
8.25/75 = 0.11 per ounce.
75 ounces for 8.25 is the better deal
Martina drove 737 miles in 11 hours. At the same rate, how long would it take her to drive 335 miles?
Answer:
5 hours
Step-by-step explanation:
737mi / 11hr = 67mph
335mi / 67mph = 5hr
==================================================
Here are two ways to solve
Method 1
First determine her speed if she goes 737 miles in 11 hours.
distance = rate*time
d = r*t
737 = r*11
737 = 11r
11r = 737
r = 737/11
r = 67
Her speed is 67 mph. Use this to find how long it would take if she drove 335 miles.
d = r*t
d/r = t
t = d/r
t = 335/67
t = 5 hours is the time it takes to drive 335 miles assuming Martina drives at the same speed.
---------------------------------------------------------------------
Method 2
We can use a proportion to solve
(distance 1)/(time 1) = (distance 2)/(time 2)
(737 miles)/(11 hours) = (335 miles)/(x hours)
737/11 = 335/x
737*x = 335*11 .... cross multiply
737x = 3685
x = 3685/737 ..... divide both sides by 737
x = 5
We get the same answer of 5 hours.
What is the slope of the line that passes through the points (1,-6) and (-8,9)? Write your answer in simplest form
Slope is the change in y over the change in x
Slope = (9 - -6)/( -8 -1)
Slope = 15/-9
Slope = -15/9
Simlipy:
Slope = -5/3
Answer:
Step-by-step explanation:
Slop = (y2 - y1)/(x2-x1)
= {9 -(-6)}/{(-8)-1}
= 15/-9
= -1.66
The three angles of a triangle measure 2x – 6, 3x + 5, and 2x + 20. What is the measure of the smallest angle in degrees?
Answer:
Step-Smallest angle = 40
by-step explanation:
Angle sum property:Sum of all three angles of triangle is 180
2x - 6 + 3x + 5 + 2x + 20 = 180 {Combine like terms}
2x + 3x + 2x - 6 + 5 + 20 = 180
7x + 19 = 180 {Subtract 19 from both sides}
7x = 180 - 19
7x = 161 {Divide both sides by 7}
x = 161/7
x = 23
2x - 6 = 2*23 - 6 = 46 - 6 = 40
3x + 5 = 3*23 + 5 = 69 + 5 = 74
2x + 20 = 2*23 + 20 = 46 + 20 = 66
Find the 43rd term of each sequence 27,24,21,18, ...
Answer:
hmmmmmmmmmm thats a tuff one
Answer:
-99
Step-by-step explanation:
First, let's find an equation to use to make things easier.
So, as we can see, the numbers go down 3 every time and we start at 27, so, the first term is 27, that means that we need to find the number before 27, so we add 3 to 27 to get 30.
We can put the equation using y = mx + b, since that is the most appropriate formula to use.
y = -3x + 30
y = -3(1) + 30
y = -3 + 30
y = 27
y = -3x + 30
y = -3(2) + 30
y = -6 + 30
y = 24
So, this is a good equation to use. Now, we substitute 43 as x
y = -3x + 30
y = -3(43) + 30
y = -129 + 30
y = -99
Please help with picture below
9514 1404 393
Answer:
1.5 cm
Step-by-step explanation:
The midpoint of OB is 9/2 = 4.5 cm from O
The midpoint of OA is 12/2 = 6.0 cm from O
Since O is not on AB, we must have B on OA, so the distance between midpoints is ...
6 cm -4.5 cm = 1.5 cm . . . . distance between midpoints
Bo is buying candy by the pound. For every 10 pounds, he pays $23. What is the cost per pound?
Answer:
1.2
Step-by-step explanation:
The cost per pound is $2.3.
Given that Bo is buying candy by the pound. For every 10 pounds, he pays $23.
We need to find the cost per pound,
So, we see that,
For 10 pounds he is paying $23,
We need to find the unit rate, so divide both by 10,
10/10 pound = $23/10
1 pound = $2.3
Hence the cost per pound is $2.3.
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an old woman sold 38 roses on street corner A and 45 on strete corner b all at the same price. if she sold $124.50 in total, what was the price of each rose?
Answer: $1.50 per rose
Step-by-step explanation: You add 38 and 45, because you want to find the total of the roses she sold. 38 + 45 = 83. Then you have to divide the total price by how many roses she sold. So, 124.50 / 83 = 1.5. So, it's $1.50 per rose.
Leo purchased items that
cost $41.20, $13.90, $5.50, and
$26.30. If his items total
more than $80, the store will
give him a 50% discount
Does Leo qualify for the
discount? If so, what
is bis cost before tax?
Answer:
He does qualify for the discount, his total will be $43.45
Step-by-step explanation:
Which property should be used next in this solution process?
3x + 2 + 3 = 7(x - 1) – 4
3x + 5 = 7(x - 1) – 4
A. Commutative Property of Addition
B. Identity Property of Multiplication
C. Associative Property of Multiplication
D.
Distributive Property
Answer:
niwebfasfbjsdfb
Step-by-step explanation:
jsdfhsdbfjhadsjbdsfhb
A football team scored 3 touchdowns, 3 extra points, and 4 field goals. If each
touchdown is worth 6 points, each extra point is 1 point, and each field goal is 3
points, what would the expression look like once you replace the letters for their
values?
Answer:
33
Step-by-step explanation:
A rectangular garden has an area of 84 square feet. If the width of the park is 7 feet, what is the length?
Answer:
Length = 12
Step-by-step explanation:
L × W = Area
84 / 7 = 12
12 × 7 = 84
The required length of the given rectangular garden is given as 12 feet.
Given that,
A rectangular garden has an area of 84 square feet. If the width of the park is 7 feet, what is length is to be determined.
The rectangle is 4 sided geometric shape whose opposites are equal in length and all angles are about 90°.
here,
Let the measure of the length of the rectangular garden be l,
Since,
Area of the rectangle = length × width
Area of the rectangle = l × 7
l × 7 = 84
l = 84 / 7
l = 12 feet
Thus, the required length of the given rectangular garden is given as 12 feet.
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any help would be nice
Answer:
D
Step-by-step explanation:
Answer:
x > -7 hope this helps
Step-by-step explanation:
What x value sloves the equation .
3x-5=1
For the following questions use f(x) = 2x + 5
Solve f(x) = 11
Answer:
2
Step-by-step explanation:
what is the x for -3(x-8) = 39
Answer:
x = -5
Step-by-step explanation:
-3x + 24 = 39
-3x = 15
x = -5
................................
divide 40 into the ratio 9:1
Answer:
36 : 4
Step-by-step explanation:
40 divided into ratio 9:1 is like 40 / (9 + 1) multiplied to both sides of 9:1
40 / (9 + 1) = 4, and if you multiply both sides by 4, you get 36 : 4
Answer:
I think the answer is 36
Step-by-step explanation:
You add 9 and 1 to get 10 and then you divide 40 by 10 and get 4 and then you multiple 9 and 4 to get 36.
How do I write log3 5 using natural logarithms?
Answer:
[tex]\displaystyle \log_3 5=\frac{\ln 5}{\ln 3}[/tex]
Step-by-step explanation:
We want to write:
[tex]\log_3 5[/tex]
Using natural logarithms.
We can use the following property of logarithms:
[tex]\displaystyle \log_b a=\frac{\log_c a}{\log_c b}[/tex]
Hence, if we let c be equal to e:
[tex]\displaystyle \log_b a= \frac{\log _e a}{\log _e b} = \frac{\ln a}{\ln b}[/tex]
Then by letting a = 5 and b = 3:
[tex]\displaystyle \log_3 5=\frac{\ln 5}{\ln 3}[/tex]
Please help I have no idea what the answer is
Answer:
59
Step-by-step explanation:
The total amount of angles in a triangle with equal 180 degress
Answer:
Step-by-step explanation:
83° + 38° + x° = 180°
121 + x = 180
x = 59
i want to give 2o points
and i will mark brainiest
1+1+1
Answer:
3
Step-by-step explanation:
I just is manhghgfthfff
Which angle in AXYZ has the largest measure?
6
9
X
8
#
Choice
A.
ZX
B.
LY
C.
ZZ
D.
Cannot be determined
Answer: Angle X
Reason: For any triangle, the largest angle is always opposite the longest side.
∠X is the largest measure on the triangle XYZ.
What is a triangle?A triangle is a 2-D figure with three sides and three angles.
The sum of the angles is 180 degrees.
We can have an obtuse triangle, an acute triangle, or a right triangle.
We have,
The angle opposite to the largest side is the largest measure.
So,
XY = 6 and opposite angle = ∠Z
YZ = 9 and opposite angle = ∠X
XZ = 8 and opposite angle = ∠Y
We see that,
YZ > XZ > XY
So,
∠X > ∠Y > ∠Z
Thus,
∠X is the largest measure on the triangle XYZ.
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If m<2 = (2x)° and m<5 = (x+6)°, find the value
of ‘x’ and the m<4.
Answer:
x = 58
[tex] m\angle 4 = 116\degree [/tex]
Step-by-step explanation:
[tex] m\angle 2 = m\angle 6..... (1)\\(alternate \: \angle s) \\\\
m\angle 5 + m\angle 6 = 180\degree \\(linear \: pair\: \angle s) \\\\
\therefore m\angle 6 = 180\degree-m\angle 5..... (2)\\\\[/tex]
From equations (1) & (2)
[tex] m\angle 2 =180\degree-m\angle 5\\\\
\therefore (2x)\degree =180\degree-(x+6)\degree \\\\
\therefore (2x)\degree +(x+6)\degree =180\degree\\\\
\therefore (2x+x+6) \degree =180\degree\\\\
\therefore (3x+6) \degree =180\degree\\\\
3x + 6 = 180\\\\
3x = 180-6\\\\
3x = 174\\\\
x = \frac{174}{3} \\\\
\huge \purple {\boxed {x = 58}} \\\\
\because m\angle 4 = m\angle 2\\(corresponding \: \angle s) \\\\
\therefore m\angle 4 = (2x)\degree \\\\
\therefore m\angle 4 = (2\times 58)\degree \\\\
\huge \orange {\boxed {\therefore m\angle 4 = 116\degree}} [/tex]
Pls Help I need this in soon and am stuck, am giving out 25 points
Answer:
12
Step-by-step explanation:
can someone please help me
Answer:
a=5
Step-by-step explanation:
18-2a=8
-18 -18
-2a=-10
/-2 /-2
a=5
(8m-3n)^2 - (4m+3n)^2
Answer:
[tex]48m^2-72mn[/tex]
Step-by-step explanation:
We need to solve [tex](8m-3n)^2 - (4m+3n)^2[/tex]
We know that,
[tex](a+b)^2=a^2+b^2+2ab\\\\(a-b)^2=a^2+b^2-2ab[/tex]
Using the above formula,
[tex](8m-3n)^2 - (4m+3n)^2=(8m)^2+(3n)^2-2(8m)(3n)-[(4m)^2+(3n)^2+2(4m)(3n)]\\\\=64m^2+9n^2-48mn-(16m^2+9n^2+24mn)\\\\=64m^2+9n^2-48mn-16m^2-9n^2-24mn\\\\=48m^2-48mn-24mn\\\\=48m^2-72mn[/tex]
So, the final answer is [tex]48m^2-72mn[/tex].
A line passes through the point (-2,3) and has a slope of 5/2
Write an equation in SLOPE-INTERCEPT form for this line.
Answer:
y=5/2+3
Step-by-step explanation:
Asking again for your help! I really don't understand!
Answer: y≤4x+3 and y≤-3x-5
Step-by-step explanation:
The slope of the first line is 4. The slope of (-1,-1) and (0,3) is 4. And the line passes through 3, so the y-intercept is 3.
The slope of the second line is 3. The slope of (-3,4) and (-1,-2) is -3. And the line passes through -5, so the y-intercept of the second line is -5
look at the picture and fill the table