Answer:
24
Step-by-step explanation:
Two negatives make a positive.
11 + 13 = 24
Answer:
24
Step-by-step explanation:
= 11 - ( -13 )
According to sign conventions, - ( - ) = +
= 11 + 13
= 24
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Peace!i need help ;^; please
Answer:
80
Good luck :)
Answer:
80
Step-by-step explanation:
[tex]\sqrt{a} * \sqrt{b} = \sqrt{ab}[/tex]
[tex]\sqrt{6400}[/tex]
6400 = 2 * 2 * 2 * 2 * 2 * 2 * 2 *2 * 5 * 5
= 2^8 * 5^2
2^4 * 5
16*5 = 80
4 A curve has equation y=x^3 - 2x² +5. Find the coordinates of its two stationary points.
Answer:
Stationary points are (0, 5) and (4/3, 103/27)
Step-by-step explanation:
At stationary point (turning point), dy/dx :
[tex]y = {x}^{3} - 2 {x}^{2} + 5 \\ \frac{dy}{dx} = 3 {x}^{2} - 4x \\ \\ \frac{dy}{dx} = x(3x - 4)[/tex]
but dy/dx = 0:
[tex]x(3x - 4) = 0 \\ either \: x \: is \: 0 \: and \: (3x - 4) = 0 \\ x = 0 \\ and \\ 3x - 4 = 0 \\ x = \frac{4}{3} [/tex]
let y = x³ - 2x² + 5:
[tex]when \: x \: is \: 0 \\ y = 5 \\ when \: x \: is \: \frac{4}{3} \\ \\ y = {( \frac{4}{3}) }^{3} - 2 {( \frac{4}{3} )}^{2} + 5 \\ \\ y = \frac{103}{27} [/tex]
write the decimal 0.85 as a percentage
Answer:
0.85 = 85%
Multiply 0.85 by 100 to get 85 percent
Find an equation for the line parallel to 3x+5y-4=0, with the same x-intercept as 2x-3y-6=0.
Answer:
It is 4y = -3x + 9
Step-by-step explanation:
[tex]3x + 5y - 4 = 0 \\ 5y = - 3x + 4 \\ y = - \frac{3}{4} x + 4[/tex]
since it is parallel, its slope, m is -¾
[tex]2x - 3y - 6 = 0 \\ - 3y = - 2x + 6 \\ y = \frac{2}{3} x - 2[/tex]
at x-intercept, y is zero
[tex]2 = \frac{2}{3} x \\ x = 3[/tex]
therefore
[tex]y = mx + c \\ 0 = ( - \frac{3}{4} \times 3) + c \\ c = \frac{9}{4} [/tex]
equation is
[tex]y = - \frac{3}{4} x + \frac{9}{4} \\ \\ 4y = - 3x + 9[/tex]
find the last two digits of 2^2016
giải bất phương trình
a)2x+1/2x+2<1
b)1/x+4<1/x-2
Answer:
[tex]a)x < - \frac{2}{5} [/tex]
[tex]b)4 < - 2[/tex]
Step-by-step explanation:
[tex]a)2x + \frac{1}{2} x + 2 < 1[/tex]
[tex] = 4x + x + 4 < 2[/tex]
[tex] = 5x + 4 < 2[/tex]
[tex] = 5x < 2 - 4[/tex]
[tex] = 5x < - 2[/tex]
[tex] = x < - \frac{2}{5} [/tex]
[tex] = x < - 0.4 \times ∈( - \infty . - \frac{2}{5} )[/tex]
[tex]b) \frac{1}{x} + 4 < \frac{1}{x} - 2[/tex]
[tex] = \frac{1}{x} + 4 < \frac{1}{x} - 2.x≠0[/tex]
[tex] = 4 < - 2[/tex]
= X ∈ ∅
Apositive integer n is called special if n is divisible by 4. n +1 is divisible by 5, and n + 2 is divisible by 6. How many special integers smaller than 1000 are there,
Answer: 17
Hello,
Step-by-step explanation:
n is divisible by 4.
n +1 is divisible by 5
n + 2 is divisible by 6
n <1000
[tex]\left\{\begin{array}{ccc}n&=&4*k_1\\n+1&=&5*k_2\\n+2&=&6*k_3\\\end{array}\right.\\\\4*k_1+1=5k_2\Longrightarrow\ k_2=\dfrac{4k_1+1}{5} \Longrightarrow\ k_1=1+5*t\ , k_2=1+4*t\\\\4*k_1+2=6k_3\Longrightarrow\ k_3=\dfrac{4(1+5t)+2}{6} \Longrightarrow\ k_3=1+\dfrac{10*t}{3} \\\\\Longrightarrow\ t=3z\\k_3=1+10z\\n+2=6(1+10z)\\n=4+60z\\\\1000 < 4+60z \Longrightarrow\ z \leq 16\\[/tex]
There are 17: from 4+0*60=4 to 4+16*60=964.
Answer:
17
Step-by-step explanation:
these positive integers are :
4, 64, 124, 184 ... , 964
964 = 4 + (n-1) (60)
964 = 4 + 60n -60
964 = 60n -56
60n = 1020
n = 1020/60
n = 17
so, the number of special integers smaller than 1000 are = 17
Each face of a cube is a square with a side length of 8 centimeters. What is
the total area of all of the faces of the cube?
Answer:
12
Step-by-step explanation:
the Andrew's going to be 12 because you have to
know all the sides of cube
Can someone match these in order correctly for me? Please do it in text not in images I can't see those as those are blocked for me!
Answers:
2^3 = 83^2 = 93^3 = 274^3 = 645^2 = 258^2 = 64==============================================
Explanation:
The notation 5^2 is the same as writing [tex]5^2[/tex]
The second number is the exponent and it tells us how many copies of the base to multiply together. In the example 5^2, we have two copies of 5 multiplied to get 5^2 = 5*5 = 25
As another example, 4^3 = 4*4*4 = 64. We have three copies of 4 multiplied due to the exponent 3. You can use a calculator for this, but I recommend doing this by hand to get practice.
Note how 4^3 = 64 and 8^2 = 64. So 64 is used twice (which is why we have two tiles labeled "64").
The tiles labeled 9, 12, 10, and 16 are never used since they don't have any matching exponential expression.
Throughout Singapore it has been estimated that about a billion (1 000 million) cubic meters of water are used each day. If we assume a population of 3 million, what is the rate of consumption of water per person?
Answer:
333 cubic meters of water are used each day by one person
Step-by-step explanation:
round 856.321 nearest 1 decimal place
Answer:
856.3
Step-by-step explanation:
What is the common ratio between successive terms in the sequence?
Answer:
1/3
Step-by-step explanation:
the formula of common ratio is given as
[tex]r = \frac{a2}{a1} [/tex]
a1= 27 ,a2=9
r= 9/27
r= 1/3
if a set of 14 pens is 12.44 then what is the cost of each pen
Answer:
Convert to a decimal by dividing the numerator by the denominator.
$1.15 = Estimate.
pens per then .
Step-by-step explanation:
14 Divided 12.44
(f×g) (x)
(4x+8)×(2x-12)
Answer:
[tex] = (4x + 8)(2x - 12) \\ = ( {8x}^{2} - 48x + 16x - 96) \\ = (8 {x}^{2} - 32x - 96) \\ = 8( {x}^{2} - 4x + 12)[/tex]
Answer:
\begin{gathered} = (4x + 8)(2x - 12) \\ = ( {8x}^{2} - 48x + 16x - 96) \\ = (8 {x}^{2} - 32x - 96) \\ = 8( {x}^{2} - 4x + 12)\end{gathered}
=(4x+8)(2x−12)
=(8x
2
−48x+16x−96)
=(8x
2
−32x−96)
=8(x
2
−4x+12)
Rewrite in simplest terms: -10f – 6(-9f +2)
Answer:
-44f - 12
Step-by-step explanation:
Here's the method :
-10f - 6 (-9f + 2 )
-10f + 54f - 12
-44f - 12
Answer:
[tex]44f - 12[/tex]
Step-by-step explanation:
[tex] - 10f - 6( - 9f + 2)[/tex]
[tex] - 6( - 9 + 2)[/tex]
[tex] - 6 \times ( - 9f) - 6 \times 2[/tex]
[tex]6 \times 9f - 6 \times 2[/tex]
[tex]54f - 6 \times 2[/tex]
[tex]54f - 12[/tex]
[tex] - 10f + 54f[/tex]
[tex]( - 10 + 54)f[/tex]
[tex] = 44f - 12[/tex]
Given g(x)=-x+2g(x)=−x+2, find g(5)g(5).
Work Shown:
g(x) = -x+2
g(5) = -5+2 ... replace every x with 5
g(5) = -3
Answer:
g(5) = -3
Step-by-step explanation:
given:
[tex]g(x ) = - x + 2g(x) = - x + 2[/tex]
find:
[tex]g(5)[/tex]
replace x with 5
[tex]g(5) = - 5 + 2[/tex]
[tex]g(5) = - 3[/tex]
How is the solution set of the sentence below described?
x + 5 < 7
{all numbers less than }
{all numbers less than 2}
{all numbers less than 7}
{all numbers less than 12}
none of these
Answer:
{all numbers less than 2}
Step-by-step explanation:
x cannot be greater than 2, because it would go over 7
Answer:
{all numbers less than 2}
Step-by-step explanation:
x can only be 2 or lower to make the sentence true
Please need help with this question
Answer:
D. It is a function, but it is not one-to-one.
Step-by-step explanation:
A function means that each x value has only 1 y value assigned to it.
It is not one-to-one because the x value 0 does not have any y value assigned to it. This is called an asymptote.
Can someone help me with this question
Answer:
Step-by-step explanation:
I THINK ITS THE 3ED TO THE RIGHT
Answer:
Answer is 6.8.
Hope it helps
2. The ratio of chocolate to vanilla ice cream is 3 scoops to 7 scoops. If there
are 147 scoops of vanilla ice cream, how many total scoops are there?
I NEED HELP ITS DUE TODAY I WILL GIVE BRAINliST PLZz
Answer:
49
Step-by-step explanation:
A farmer is making a circular pen for her pigs. She needs the pen to have a diameter of 26 feet. If fencing costs $32 per foot, which is the closest to the total cost of the fence that the farmer needs to make the pen?
A) $2894.01
B) $ 2765.19
$ 2612.48
D) $ 2578.94
Answer:
C
Step-by-step explanation:
circumference= 2* pie*(26/2)
Answer:
[tex]\boxed {\boxed {\sf C. \$ 2612.48 }}[/tex]
Step-by-step explanation:
We are asked to find the cost of the fence a farmer needs to make a pen.
FeetThe fence is used to make a circle. We want to find the cost, but we first need to find how many feet of fence is needed. Essentially, we have to find the perimeter, but this is called the circumference because it is a circle. The formula for calculating circumference is:
[tex]c= \pi d[/tex]
The diameter (d) of the pen is 26 feet and we can use 3.14 for pi. Substitute these values into the formula.
[tex]c=3.14 * 26 \ ft[/tex]
Multiply.
[tex]c= 81.64 \ ft[/tex]
CostThe farmer needs 81.64 feet of fencing. The cost of fencing is $32 per foot, so we multiply the cost by the feet needed.
[tex]\$32 / ft * 81.64 \ ft[/tex]
The units of feet cancel
[tex]\$ 32 * 81.64[/tex]
[tex]\$2612.48[/tex]
The cost of the fencing is $2612.48 and choice C is correct.
FIND DB HELP.
ITS GEOMETRY AND IM SO CONFUSED
Step-by-step explanation:
Given,
D = 1/4
B = 2/3
to find the length of DB,
DB = 1/4+2/3
= 11/12
I'm sorry to bother. I really can't understand this and my teacher isn't offering help after school today. Could someone help? I've already done 5-8
Answer:
Step-by-step explanation:
is this involved with the pythagorean angles?\
Need help ASAP pls!!!!!!
which answer shows a reflection across the x -
Answer:
In transformations a reflection across the x axis produces a mirror image.
What is the answer to, 2/3 / -1/2?
Answer:
[tex] \frac{ \frac{2}{3} }{ \frac{ - 1}{2} } \\ = \frac{2}{3} \times \frac{ - 2}{1} \\ = \frac{ - 4}{3} \\ thank \: you[/tex]
Answer:
-4/3
Step-by-step explanation:
[tex]\frac{2}{3} /\frac{-1}{2} \\\\\frac{2}{3} *\frac{-2}{1} \\\\\frac{-4}{3}[/tex]
if angle 4 is 52.7, what are the measures of angles 1,2, and 3?
Answer:
127.352.7127.352.7Step-by-step explanation:
Since we know the angle measure of angle 4, we already know that angle 2 will have the same measure according to do the vertical angle theorem. Now to find angles 1 and 3, we can make an equation and solve for x (supplementary angles).
52.7 + x = 180
x = 127.3
Best of Luck!
Xavier buys a two-quart bottle of juice for $5.12. What is the unit rate of the cost of the juice per fluid ounce?
Before you try that problem, answer the question below.
How many fluid ounces of juice did Xavier buy?
Answer:
2.56
Step-by-step explanation:
2 divided by 512
2 lol
Answer:
Q1. $2.56
Q2. 2 fluid ounces
Step-by-step explanation:
Q1. $5.12÷2=$2.56
Q2. 2 fluid ounces (inferred from qn)
The price of a cup of coffee has risen to $2.45 today. Yesterday's price was $2.15. Find the percentage increase. Round your answer to the nearest tenth of a percent.
Answer:
14%
Step-by-step explanation:
To find the percentage change of any two amounts you just need this formula: (new - old) ÷ old
New price = $2.45
Old price = $2.15
2.45 = 2.15 = 0.3
0.3 ÷ 2.15 = 0.139534883721
This would make the percentage increase = %13.9534883721
But the question wants it rounded to the near tenth, so it's %14
Answer:
13.9535% increase, so yeah, like, 14%
Step-by-step explanation: