Answer:
0.5 times -8 3/5
Step-by-step explanation:
Subtract both numbers and you will get the answer.
Solve: -4 (x + 6) + 2 ( x -2) Show your work
Answer:
-2x - 28
Step-by-step explanation:
-4(x+6) +2 (x-2) Distribute the -4 to (x+6) and the 2 to (x-2):
-4x - 24 + 2x - 4 Combine like terms -4 + 2x and -24-4:
-2x - 28
Hope this helped :)
Answer:
Please see explanation.
Step-by-step explanation:
-4(x+6) + 2(x-2) First, distribute the -4 to x+6
-4x - 24 + 2(x-2) Now distribute the 2 into x-2
-4x - 24 + 2x - 4 Combine like terms
-4x + 2x - 24 - 4
-2x - 28 This might be your answer but if you are looking for what x is equal to then keep following along.
If you are solving for x then most likely the equation says that it is equal to zero
-2x - 28 = 0 Add 28 to both sides
-2x = 28 divide both sides by -2
x = -14
in this image, what is Janelle's position relative to sea level while hiking? what should the altimeter read a this position?
Answer:
janelle is 2,015.75 ft above sea level the altimeter should read plus 2,015.75
2,015.75 ft is the Janelle's position relative to sea level while hiking and the altimeterread this position as 2,015.75.
hope this hep you
URGENT 50 PTS AND BRAINLIEST FOR A CORRECT ANSWER THAT EXPLAINS WELL
A
Find an equation of the circle and sketch it if it has: Tangent to x-axis, r=4, contains (–5,8)
B
Find an equation of the circle and sketch it if it has:
Diameter endpoints (2, 5) and (0, 3)
C
Find an equation of the circle and sketch it if it has:
Center on x=3, tangent y-axis at (0, 5)
Answer:
A. [tex](x+5)^2+(y-4)^2=16[/tex]
B. [tex](x-1)^2+(y-4)^2=2\\[/tex]
C. [tex]$\left(x-3\right)^2+\left(y-5\right)^2=9$[/tex]
Step-by-Step Explanation:
A. Tangent to x-axis, r=4, contains (-5,8)
The equation of a circle is this: [tex](x-h)^2+(y-k)^2=r^2\\[/tex]
Therefore, we know that our equation will be: [tex](x-h)^2+(y-k)^2=4^2=16[/tex]
Because the circle is tangent to the x-axis, the point (-5,8) will be the top of the circle.
Therefore, the center is (-5,4), where -5=h and 4=k.
The answer is [tex](x+5)^2+(y-4)^2=16[/tex]
B. Diameter endpoints (2,5) and (0,3)
To solve for the diameter, we can use this equation: [tex]d=\sqrt{(x_{1}-x_{2})^2+(y_{1}-y_{2})^2 }[/tex]
[tex]d=\sqrt{(2-0)^2+(5-3)^2 }\\\\d=\sqrt{2^2+2^2}=\sqrt{4+4} =\sqrt{8}= 2\sqrt{2}[/tex]
Because the radius is half of the diameter, [tex]r=\sqrt{2}[/tex]
Therefore, we know that our equation will be: [tex](x-h)^2+(y-k)^2=(\sqrt{2}) ^2=2[/tex]
Then, we can decipher that h=1, as the midpoint of 0 and 2 is 1, and k=4, as the midpoint of 3 and 5 is 4.
The answer is [tex](x-1)^2+(y-4)^2=2[/tex]
C. Center on x=3, tangent to y-axis at (0,5)
We can see that the center is (3,5). Therefore, the equation is [tex](x-3)^2+(y-5)^2=r^2\\[/tex]
To solve for r, we can substitute the point (0,5) into the equation.
[tex](0-3)^2+(5-5)^2=r^2\\(-3)^2+(0)^2=r^2\\r^2=9[/tex]
The answer is [tex](x-3)^2+(y-5)^2=9[/tex]
Hope this helped!
Construct a 2x2 matrix A= aij. whose elements are given by
a = |-3i + j|
Answer:
2
Step-by-step explanation:
The square root of 10 lies between what 2 numbers?
A number line is just that – a straight, horizontal line with numbers placed at even increments along the length. The square root of 10 lies between 3 and 4.
What is a number line?A number line is just that – a straight, horizontal line with numbers placed at even increments along the length. It’s not a ruler, so the space between each number doesn’t matter, but the numbers included on the line determine how it’s meant to be used.
In order to find the square root of 10 lies between which two numbers the approximate value of the root is needed to be calculated.
√10 = 3.162.......
Now, if we plot √10 on the number line its value will lie between 3 and 4.
Hence, The square root of 10 lies between 3 and 4.
Learn more about the Number line:
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Dilations always increase the length of line segments
True
False
Dilations increase the measure of angles.
Group of answer choices
True
False
Dilations of a triangle are similar to the original triangle.
Group of answer choices
True
False
area exercises 1 5\8 hours per day if he exersises five days a week how many total hours does he exersise in a week
please assist me with the domain and range of graphs
Answer: see below
Step-by-step explanation:
Domain represents the x-values from the smallest (furthest left) to the biggest (furthest right).
Range represents the y-values from the lowest (furthest down) to the highest (furthest up).
Interval notation: If a value is included (closed dot), use a bracket [ ]
If a value is NOT included (open dot), use a parenthesis ( )
Note that ± ∞ is never included.
1. Domain: smallest x-value is -4 (included). biggest x-value is 3 (included)
Range: lowest y-value is 2 (included). highest y-value is 5 (included)
D: x = [-4, 3] R: y = [2, 5]
2. Domain: smallest x-value is -∞ (←). biggest x-value is 2 (included)
Range: lowest y-value is 2 (included). highest y-value is ∞ (↑)
D: x = (-∞, 2] R: y = [2, ∞)
3. Domain: smallest x-value is -∞ (←). biggest x-value is ∞ (→)
Range: lowest y-value is -∞ (↓). highest y-value is ∞ (↑)
D: x = (-∞, ∞) R: y = (-∞, ∞)
4. Domain: smallest x-value is -∞ (←). biggest x-value is ∞ (→)
Range: lowest y-value is -∞ (↓). highest y-value is 4 (included)
D: x = (-∞, ∞) R: y = (-∞, 4]
5. Domain: smallest x-value is -∞ (←). biggest x-value is ∞ (→)
Range: lowest y-value is 3 (included). highest y-value is ∞ (↑)
D: x = (-∞, ∞) R: y = [3, ∞)
6. Domain: smallest x-value is -2 (included). biggest x-value is ∞ (→)
Range: lowest y-value is -3 (included). highest y-value is ∞ (↑)
D: x = [-2, ∞) R: y = [-3, ∞)
1. Contaminated water is subjected to a cleaning process. The concentration of the pollutants is initially 5 mg per liter of water. If the cleaning process can reduce the pollutant by 10% each hour, define a function that can represent the concentration of pollutants in the water in terms of the number of hours that the cleaning process has taken place.
Answer:
[tex]C(t)=5\cdot(0.9)^t[/tex]
Step-by-step explanation:
The exponential function is often used to model natural growing or decaying processes, where the change is proportional to the actual quantity.
An exponential decaying function is expressed as:
[tex]C(t)=C_o\cdot(1-r)^t[/tex]
Where:
C(t) is the actual value of the function at time t
Co is the initial value of C at t=0
r is the decaying rate, expressed in decimal
The concentration of the pollutants starts at Co=5 mg/lt. We also know the pollutant reduces its concentration by 10% each hour. This gives us a value of r = 10% / 100 = 0.1
Substituting into the general equation:
[tex]C(t)=5\cdot(1-0.1)^t[/tex]
Operating:
[tex]\boxed{C(t)=5\cdot(0.9)^t}[/tex]
y(n) = 5(0.9)ⁿ
To answer this, we will make use of the exponential decaying function which is given by;y(n) = a(1 - b)ⁿ
where;
y is the final amount at time n,
a is the original amount
b is the decay factor
x is the amount of time that has passed.
We are told that the initial concentration of the pollutants is 5 mg/LThus;
a = 5 mg/L.
We are told that the pollutant reduces its concentration by 10% each hour. Thus; b= 10%
b = 0.1
Therefore Plugging in the relevant values into y(n) = a(1 - b)ⁿ, we have;y(n) = 5(1 - 0.1)ⁿ
y(n) = 5(0.9)ⁿ
Read more at; brainly.com/question/2046253
Please help me. I have no idea how to solve this.
Answer:
its either D or C
Step-by-step explanation:
A makes no sense because u only moving 2 and for B too and E it not it
what are cordinate planes
Answer:
hey you can use google
Step-by-step explanation:
first write your question then look for useful answers
Answer:
where points are on a grid
Step-by-step explanation:
Given g(x) = -X – 1, solve for x when g(x) = 3.
Answer:
-4 = x
Step-by-step explanation:
g(x) = -X – 1
g(x) = 3
3 = -x-1
Add 1 to each side
3+1 = -x-1+1
4 = -x
Multiply by -1
-4 = x
Which number is the greatest?
O 1.2
O 1.3
O 1.235
O 1.003
Answer:
bStep-by-step explanation:
Answer:
b
Step-by-step explanation:
go it right on edge
4. Factor 16b-4 FT
(1 Point)
Enter your answer
So basically you factor 4 out of 16
4(4b-1)
PLEASE HELP ME I WILL GIVE BRAINLEIST ASAP
The graph of f(x) is shown. What is the value of x when f(x) = 4?
Answer:
5
Step-by-step explanation:
The function intersects the y-axis at 1, and its slope is 1, so the function of the graph is y = x+1. Plugin 4, and you get y = 5.
Find the slopes of the linear functions.
y = -2x + 7
The slope of the line given by the linear equation is
ty
The slope of the line shown in the graph is
4
-8
4
Answer:
The slope of the line given by the linear equation is -2
The slope of the line shown in the graph is -1
Step-by-step explanation:
The line equation, y = -2x + 7 is written in the slope-intercept form, which is represented by the formula, y = mx + b.
m is the slope, while b is the y-intercept.
Therefore, the slope of the line of the linear equation, y = -2x + 7 is -2.
Find the slope of the line shown in the graph using the formula, [tex] m = \frac{y_2 - y_1}{x_2 - x_1} [/tex].
Use the coordinates of any two points on the line. Let's use (0, 5) and (5, 0)
Let,
[tex] (0, 5) = (x_1, y_1) [/tex]
[tex] (5, 0) = (x_2, y_2) [/tex]
[tex] m = \frac{0 - 5}{5 - 0} = \frac{-5}{5} = -1 [/tex]
Therefore:
The slope of the line given by the linear equation is -2
The slope of the line shown in the graph is -1
The triangles below are congruent. Which of the following statements must be true?
Answer:
BC=FD
Step-by-step explanation:
Answer: I agree it’s BC congruent to FD
Step-by-step explanation:
1
1
2
3
3
4
Y
4
-2
01
-3
O
Function
O
Not a Function
Can someone help me
Answer:
with what?
Step-by-step explanation:
You are filling piñatas for your sister's birthday party. The list shows the gifts you are putting into the piñatas. You want identical groups of gifts in each piñata with no gifts left over. What is the greatest number of piñatas you can make?
Answer:
The greatest number of piñatas you can make with the gifts is:
6 piñatas.Step-by-step explanation:
To identify the greatest number of piñatas, you must think in a number that can divide another and obtain a whole number with this:
182442Bigger the number, greater the number of piñatas, in this case, you can see the numbers given can be divided into four numbers obtaining a whole number: 1, 2, 3, and 6. Remember that the best number is the greatest, in this case, number six. Now you proceed to divide the numbers into 6:
[tex]\frac{18}{6}= 3[/tex][tex]\frac{24}{6}= 4[/tex] [tex]\frac{42}{6}=7[/tex]Taking into account the values obtained, you can see that each piñata would have: 3 bottles of nail polish, 4 pairs of earrings, and 7 lollipops.
you have a blender mixed with raspberries,blueberries,ice, and water.Which of the following will NOT change when mixed together?
Answer: actually the mass
Step-by-step explanation: regardless on where you are the mass never change, it's the wait within a substance or a matter
Lydia subtracted 5.6 - 2.31 and got an answer of 2.25 what did she do wrong
Answer:
She did 5.60-2.31=2.25
Step-by-step explanation:
She should have subtracted 5.6-2.31=3.29
- Answer:
the answer is 3.29
she didn't put the decimal point in the right place when subtracting
Step-by-step explanation:
correct
5.6
-
2.31 =
3.29
NOTICE THAT IN THIS PROBLEM THE DECIMAL POINTS ARE ALIGNED WITH EACH OTHER.
wrong
5.6
-
2.31
=
2.25
NOTICE THAT IN THIS PROBLEM THE DECIMAL POINTS ARE NOT ALIGNED WITH EACH OTHER.
Also plz mark brainliest and try to answer my question
How do you write 1.8 × 10^1 in standard form?
Answer:
probable as
1.8 × 10 = 18
brainliest ig?
Hey
What’s 8=D mean? I see it all the time but can’t figure it out! Help! My peers laugh at me. Is it simple math?
Answer:
it's a dirty joke, like when you type things into a calculator and turn it upside down to make it look like a word. It's not an equation
Step-by-step explanation:
Answer:
its a depiction using symbols from a calculator about mens sexual organs its really dirty and you shouldn't use it especially if you are too inoccent to know what it is
what
is bigger 2/5 or 0.25
Answer:
2/5 is bigger
Step-by-step explanation:
2/5 is 0.40
Use the figure below to solve for X.
Answer:
the value of x is 45 degree
Answer:
45
Step-by-step explanation:
Step 1:
2x + 55° + x - 10° = 180° Sum of a Δ
Step 2:
3x + 45° = 180° Combine Like Terms
Step 3:
3x = 135° Subtract 45° on both sides
Step 4:
x = 135° ÷ 3 Divide
Answer:
x = 45
Hope This Helps :)
I need help solving this problem
Answer:
18x^2 - 40x / 3
Which of the following coordinates would be the reflection of the point (7, -2) over the x-axis.
a)( -7,-2) b) (7,2 ) c) (-7,2) d) ( 2,7)
Answer:
The correct answer is B) (7,2).
Step-by-step explanation:
I hope this helps!
A box of Shredded Wheat weighs 0.35 kg and a box of Weetabix weighs 9/25 kg?
Which box is heavier?
Show your work
PLEASE HELP DUE TONIGHT THANK YOU SO MUCH
Answer: The box of Weetabix is heavier by 0.01 kg
Step-by-step explanation:
Divide 9/25 to get the decimal equivalent
9÷25 =0.36
Compare Shredded Wheat at 0.35 kg to Weetabix at 0.36 kg
Weight of the box of Shredded Wheat is [tex]0.35[/tex] kg and weight of the box of Weetabix is [tex]0.45[/tex] kg.
So, the box of Weetabix is heavier.
Weight of the box of Shredded Wheat [tex]= 0.35[/tex] kg.
Weight of the box of Weetabix [tex]= \frac{9}{25}[/tex] kg.
Here to compare the two weights, first make both of them similar.
Either make both of them decimals or both of them fraction.
Here, we will make both the weights decimals.
[tex]\frac{9}{20} = 0.45[/tex]
Now, [tex]0.45>0.35[/tex]
So, the box of Weetabix is heavier.
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Anyone have the guided notes answers from this point up to the unit test ? Geometry A
Answer:
vvhcfggfcc
Step-by-step explanation:
ccgvvhhh I don't I need more points buddy