Answer:Communitive Property
Step-by-step explanation: You can only do this property with addition and multiplication because you are able to switch the places and still get the same answer
What is the slope of the line described by the equation below?
Answer:
7
Step-by-step explanation:
What is 12500 written in scientific notation?
Answer:The purpose of scientific notation is for scientists to write very large, or very small, numbers with ease.
Calculating scientific notation for a positive integer is simple, as it always follows this notation:
a x 10b
Follow the steps below to see how 12,500 is written in scientific notation.
Step 1
To find a, take the number and move a decimal place to the right one position.
Original Number: 12,500
New Number: 1.2500
Step 2
Now, to find b, count how many places to the right of the decimal.
New Number: 1 . 2 5 0 0
Decimal Count: 1 2 3 4
There are 4 places to the right of the decimal place.
Step 3
Building upon what we know above, we can now reconstruct the number into scientific notation.
Remember, the notation is: a x 10b
a = 1.25 (Please notice any zeroes on the end have been removed)
b = 4
Now the whole thing:
1.25 x 104
Step 4
Check your work:
104 = 10,000 x 1.25 = 12,500
Step-by-step explanation:
Nile has 12 video games. Alex has 4 times that amount.how much more Alex have than Nile?
Answer:
48 video games
Step-by-step explanation:
Nile has 12 video games, and we know Alex has 4 times the amount. When doing "times" we multiply.
12*4 = 48 video games
Answer:
Alex has 36 more video games than Nile.
Step-by-step explanation:
12 × 4 = 4848 - 12 = 36which of the following isn't a composite number? (a): 69 (b): 52 (c): 41 (d): 33 I need is fast plzzzzzzzzzzzzzzzzzzzzz
it is c:41 just to verify
How do you solve this multi-step equation?
-4x-7-3x+4=25
Answer:
x= -4
Step-by-step explanation:
Combine alike terms:
-7x-3=25
Add a 3 to both sides:
-7x=28
Divide by -7 on both sides:
x= -4
Victoria recently switched to a new electric company. If she uses between 0 and 400 kilowatt-hours (kWh) of electricity per month, the cost is a set price of $30. If she uses 400 kWh or more per month, the price is $0.097 per kWh.
Answer:
see the explanation
Step-by-step explanation:
The question is
Identify the domain and the range, using words and inequalities
Let
x -----> the number of kilowatt-hours (kWh) of electricity per month
y ----> the price per month
we know that
Part 1) For the value of x between 0 kWh and 400 kWh
[tex]0\ kWh \leq x < 400\ kWh[/tex]
The price is equal to
[tex]y=\$30[/tex]
therefore
The domain is the interval ------> [0,400)
The domain is all real numbers greater than or equal to 0 kWh and less than 400 kWh
The range is ($30)
The range is equal to $30
Part 2) For the value of x equal to 400 kWh or more per month
[tex]x\geq 400\ kWh[/tex]
The domain is the interval -----> [400, infinite)
The domain is all real numbers greater than or equal to 400 kWh
The price is
[tex]y=0.097x[/tex]
Find the range
For x=400 kWh
[tex]y=0.097(400)=\$38.8[/tex]
so
[tex]y\geq \$38.8[/tex]
The range is the interval -----> [38.8, infinite)
39X5=5X(____-1)=(5X___)-(5X1)=___-___=__
Answer:
8 85
Step-by-step explanation:
The operational value being sought in the equation 39X5 equals 5X(___-1) is 40. When you multiply 5 with 40 and subtract the product of 5 and 1 from the result, you get 195, which matches 39x5.
Explanation:The equation provided is a multiplication and subtraction problem, where you're tasked to find a sequence of operations that gets from 39x5 to an answer. Detangle it step by step:
The first operation is simple multiplication: 39x5 equals 195.Then we need to figure out the number which when multiplied by 5 and subtracted by the product of 5 and 1 results in 195. This number is 40 because 5x40 is 200, and subtracting 5 (which is 5x1) gives us 195. Hence the equation becomes 5x(40-1). To verify, the left side of the equation 5x(40-1) becomes (5x40) - (5x1) which equals 200 - 5, and that is indeed 195, matching the right side of the first equation (39x5).Learn more about Multi-step equations here:https://brainly.com/question/18686312
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Please answer this correctly
Answer:
Rita
Step-by-step explanation:
Everyone else is further from Rita.
2x + 3 =-7
Match equation to its solution
Answer:
X= -5
Step-by-step explanation:
You must move all constants to one side of the equation (one side of the equal sign) and away from 2x. To do so, you must do the inverse operation, which would be subtraction in this case because 3 is a positive number. (Inverse of addition is subtraction, Inverse of subtraction is addition, Inverse of multiplication is division, and inverse of division is multiplication) If you squish a constant and variable together (2x) it means multiplication.What you must do to one side, you must do to the other. So, since you subtracted 3 from the 3, you must subtract 3 from -7, too(subtracting from a negative is just addition- but you keep the negative sign). Once this is done, your equation will be 2x=-10 Now, you must do the inverse operation to 2x to separate the 2. The inverse operation will be division. So, you divide both sides by 2. 2x divided by 2 will give you x. -10 divided by 2 will give you -5. (When you divided negative and positive numbers, the signs are different, meaning it's negative. If they had the same sign, it would be positive.)Therefore, your answer is x= -5Hope I helped! :)
Sorry about the whole dang essay lol
Answer:
x= -5
Step-by-step explanation:
1. subtract 3 from both sides. You should have 2x = -10
2. divide both sides by 2. You should end up with x = -5
(3×7)+5=26 write a situation for this equation
Answer:
Tom is at the grocery store and is buying 3 treats. Each treat costs him 7 dollars. He is also purchasing a drink for 5 dollars. What is the total amount he is spending?
List the fractions and decimals from greatest to least
3/4 -7/10 -3/4 8/10
Remember that in fractions the small fractions are greater then big fractions and also remember that this rule doesn't apply with negative fractions and it's the opposite.
[tex]\frac{3}{4} -\frac{7}{10} -\frac{3}{4} \frac{8}{10}[/tex]
[tex]\frac{3}{4} >\frac{8}{10}[/tex]
[tex]\frac{8}{10} >-\frac{7}{10}[/tex]
[tex]-\frac{7}{10} >-\frac{3}{4}[/tex]
[tex]= \frac{3}{4} ,\frac{8}{10} ,-\frac{7}{10}, -\frac{3}{4}[/tex]
Therefore your answers are "3/4, 8/10, -7/10, and -3/4."
Hope this helps.
sinθ> cosθ<0 where does angle θ lie
Since you want a negative cosine, your angle will surely lie in the II or III quadrant.
In particular, in the II quadrant, the cosine is negative and the sine is positive, so you surely have [tex]\sin(\theta)>\cos(\theta)[/tex]
As for the third quadrant, we start with
[tex]\sin(\pi)=0,\quad\cos(\pi)=-1[/tex]
(which implies that the sine is greater than the cosine) and we end with
[tex]\sin\left(\dfrac{3\pi}{2}\right)=-1,\quad\cos\left(\dfrac{3\pi}{2}\right)=0[/tex]
which implies that the sine is less than the cosine.
Halfway through, we have
[tex]\sin\left(\dfrac{5\pi}{4}\right)=\cos\left(\dfrac{5\pi}{4}\right)=\dfrac{\sqrt{2}}{2}[/tex]
So, only the first half of the III quadrant is fine, because sine and cosine are both negative, but the sine is "less negative" than the cosine, so we have, as requested,
[tex]\begin{cases}\sin(\theta)>\cos(\theta)\\\cos(\theta)<0\end{cases}[/tex]
So, the final answer is that the angle lies in the interval
[tex]\dfrac{\pi}{2}<\theta<\dfrac{5\pi}{4}[/tex]
Answer:
[tex]\theta\in\left(\pi+2k\pi;\ \dfrac{3\pi}{4}+2k\pi\right)[/tex]
Step-by-step explanation:
I think correct inequality is
[tex]\cos\theta<\sin\theta<0[/tex]
The easiest way is to draw graphs of sine and cosine functions in one coordinate system and read a set of solutions from the graph (look at the picture).
We need to solve the equation
[tex]\sin\theta=\cos\theta[/tex]
to get the intersection points of the graphs.
[tex]\sin\theta=\cos\theta\qquad\text{divide both sides by}\ \cos\theta\neq0\\\\\dfrac{\sin\theta}{\cos\theta}=1\to\tan\theta=1\to\theta=\dfrac{\pi}{4}+k\pi,\ k\in\mathbb{Z}[/tex]
We look at where the sine function graph is above the cosine function graph.
Nine is less than a number is no more than 8 and no less than 3
Answer:
3 <= x <= 8
Step-by-step explanation:
A number is denoted as an arbitrary variable, let's call it x.
We have a double inequality:
1. No more than 8 means less than or equal to 8
2. No less than 3 means greater than or equal to 3
3 <= x <= 8
Answer:
12 ≤ n ≤ 17Step-by-step explanation:
Let n - number
Nine less than a number: n - 9
is no more than 8: ≤ 8
and no less than 3: ≥ 3.
We have the inequality:
[tex]3\leq n-9\leq8\qquad\text{add 9 to all sides}\\\\3+9\leq n-9+9\leq8+9\\\\12\leq n\leq17[/tex]
The product of 12 and 5 decreased by 17
Answer: 0
Step-by-step explanation:
12 + 5 = 17
17 - 17 = 0
Hope this helps!
Answer:
0
Step-by-step explanation:
1. you want to add 12 +5 because "product" is the name of the answer to an addition problem
2. you'll get 17
3. subtract 17 from 17
4. you'll get 0
I really don't get the whole Mean, Median and Mode thing.
Answer:
The mean is the average you're used to, where you add up all the numbers and then divide by the number of numbers. The median is the middle value in the list of numbers. The mode is the value that occurs most often.
Mean is all the numbers together in total so in order to get the mean you just add up all the numbers then divide by the total amount of numbers in that set.
Median in order to find the median you rearrange the numbers least from greatest and find the average from the two numbers in the middle of the set 2,2,2,2,2,4,5,5 21, in this case 2 because it's the number in the middle.
Mode in a set of numbers the mode is the most occurring of numbers 2,2,2,4,5,21,2 2,5 which would be 2 in this case.
Hope this helps.
Determine the length arc of JL
Answer:
The solution is
13
12
π.
Step-by-step explanation:
Arc Length=
m(ARC)
360
· 2πr
Thanks in advance for any help provided to this question!
Mr. Lee drives an average of 58 miles per hour. About how many hours will he take to drive 1,805 miles?
Answer:
A little over 31hours
Step-by-step explanation:
Use simple proportion
58miles = 1hr
1805miles = ?
(1805x1)/58 = 31.12hrs
Since the question asks you for an estimation, it should be fine to say a little over 31hours but do show full working and the accurate answer
solve for x x/7 +9=15
Answer:
x = 42
Step-by-step explanation:
x/7 + 9 = 15
=> x/7 = 15 - 9
=> x/7 = 6
=> x = 6(7)
=> x = 42
Decompose the rectangle along the diagonal and recompose the two pieces to make a different shape. How does the area of this new shape compare to the area of the original rectangle? Explain how you know
Answer:
Its the same area as the original shape.
Step-by-step
If you descompose a original area into smaller pieces. The mathematical process of cutting areas won’t add or substract area. Even of you cut the original area to infinitesimal size pieces, the infinite number of pieces will sum up the same area as original area.
When a rectangle is decomposed along the diagonal and repositioned, the resulting shape is a parallelogram with the same area as the original rectangle.
Explanation:To decompose the rectangle along the diagonal, we can cut it in half from one corner to the opposite corner. This creates two right triangles. We can then reposition the triangles to create a parallelogram. The area of the parallelogram is the same as the area of the original rectangle.
This can be shown using the formula for the area of a triangle, which is 1/2 times the base multiplied by the height. Since the base and height of each triangle are equal to the length and width of the rectangle, the area of each triangle is (1/2) * length * width.
When we rearrange the triangles to form a parallelogram, the base is equal to the length of the rectangle and the height is equal to the width of the rectangle. Thus, the area of the parallelogram is length * width, which is the same as the area of the original rectangle.
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Factor the following: 4x^2 + 18x - 10
so far I factored out 2: 2(x^2 + 9x - 5)
what's the next step?
Your input: factor 4x2+18x−10.
Factor the common term:
(4x2+18x−10)=(2(2x2+9x−5))
To factor the quadratic function 2x2+9x−5, we should solve the corresponding quadratic equation 2x2+9x−5=0.
Indeed, if x1 and x2 are the roots of the quadratic equation ax2+bx+c=0, then ax2+bx+c=a(x−x1)(x−x2).
Solve the quadratic equation 2x2+9x−5=0.
The roots are x1=12, x2=−5 Therefore, 2x2+9x−5=2(x−12)(x+5).
2(2x2+9x−5)=2(2(x−12)(x+5))
Simplify: 4(x−12)(x+5)=2(x+5)(2x−1).
Thus, 4x2+18x−10=2(x+5)(2x−1).
Answer: 4x2+18x−10=2(x+5)(2x−1).
Which expression has a value of 32 when m = 8? A. m-8 B. 4m C. m/2 D. M+8 ANSWER ASAP 20 POINTS QUICK
Answer:
B. 4m
Step-by-step explanation:
What you do is you just take the 8 and put it into the m.
m-8, 8-8=0 so A isn't your answer.
4m, 4(8)=32 so B is your answer.
B. 4m is your answer.
The expression 4m will give 32 at m=8 the correct option is B.
Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.
The expression will be calculated as:-
A. m - 8 = 8 - 8 = 0
B. 4m = 4 x 8 = 32
C. m / 2 = 8 / 2 = 4
D. m + 8 = 8 + 8 = 16
Therefore, the expression 4m will give 32 at m=8 the correct option is B.
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What is the error in both of these problem
expain how you got your answer
Answer:
Step-by-step explanation:
2.
Step where it was wrong ->
x-8 = 0
x=-8
They just put negative eight on the right side you have to cancel negative 8 out by adding negative 8 on both sides.
x-8=0
+8 +8
x=8 <- Right solution.
3.
Step where it was wrong ->
8(p-7) = 75
8p-7=75
Distributive Property you have to do 8 times p and 8 times -7, they just did 8 times p and forgot to do 8 times -7.
8(p-7)=75
8p-56=75 <- Do 8 * -7 in addition of doing 8 *p
8p=131
/8 /8
p = 16.735 or 131/8
I need back ASAP please help
Answer:
40
Step-by-step explanation:
11 plus 4 divided by 3 times square root of 64 equals to 40
Answer:
40
Step-by-step explanation:
11+4=15÷3=t
5x8==40
26 ptss!! select the expressions that are equivalent to the expression below.
Answer:
1st, 2nd, and last.
Step-by-step explanation:
For the first two common rules can be applied such as [tex]n\sqrt{a/b}[/tex] = [tex]\frac{\sqrt[n]{a} }{\sqrt[n]{b} }[/tex] and that [tex]\sqrt[n]{\frac{a}{b} } = (\frac{a}{b})^{n}[/tex]
and for the last one this is just simplifying the radical and if you factor it you realize that, [tex]\frac{750}{512} = \frac{5^3}{8^3}*6[/tex] meaning that you can take the radical off of 5/8 and end up with that final answer
Answer:(A), (B) and (E)
Step-by-step explanation:
I got a 100% on my test
A middle school principal orders 60 pizzas for a schoolwide pizza party. Each pizza is either cheese,pepperoni, or mushroom. There are an equal number of cheese and pepperoni pizzas. Of the total amount of pizzas, 40% are mushroom. How many pepperoni pizzas are there?
A. 15
B. 18
C. 20
D. 30
Answer:
i think 18 or twenty not sure tho
Complete the statement below.
26.4 ÷ 10a = 0.0264, when a = (a is an exponet)
just copy and pasted my benchmarker test xd
Answer:
I would say 3, since you would need to move the decimal point up 3 times to get .0264
Mrs.Eng bought 4 packs of glue sticks. Each pack has 5 glue sticks. Her class uses 2 of the glues sticks for a project. How many glue sticks are left?
Answer:
there 18 glue sticks left
Step-by-step explanation:
4 times 5= 20-2 it says that she uses 2 glue sticks and to start she had 20 so 20-4 =18
Answer:
18
Step-by-step explanation:
I did it and got it correct
Omg what is my life plz help
Answer:
bag 1) 10.3 grams
bag 2) 5.23 grams
bag 3) 3.74 grams
And the total mass is 14.27
8 x 1,000,000+5 x 10,000+2 x 1,000+6 x 100 in standard form?
Answer:
8052600
Step-by-step explanation:
According to the Order of Operations, in this case, you deal with all multiplication before adding everything up.
I am joyous to assist you anytime.
the expression 8 x 1,000,000 + 5 x 10,000 + 2 x 1,000 + 6 x 100 in standard form is equal to 8,052,600.
To express the expression 8 x 1,000,000 + 5 x 10,000 + 2 x 1,000 + 6 x 100 in standard form, we can simplify the multiplication and then sum up the products.
8 x 1,000,000 = 8,000,000
5 x 10,000 = 50,000
2 x 1,000 = 2,000
6 x 100 = 600
Adding these values together:
8,000,000 + 50,000 + 2,000 + 600 = 8,052,600
Therefore, the expression 8 x 1,000,000 + 5 x 10,000 + 2 x 1,000 + 6 x 100 in standard form is equal to 8,052,600.
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Select the correct answer. What is the solution for x in the equation? A.3 B. -3 C.-1/3 D. 1/3
Final answer:
The solution for x cannot be provided as the actual equation is missing from the question. Therefore, we are unable to solve for x or determine which of the given options is correct.
Explanation:
The solution for x in the equation cannot be determined from the information provided. The equation itself is missing from the question, so we cannot assess what the correct answer might be from the options A.3, B. -3, C. -1/3, and D. 1/3. Solving for x in any given equation generally involves isolating x on one side of the equation using algebraic operations such as addition, subtraction, multiplication, division, and sometimes applying the quadratic formula if the equation is a quadratic one (ax² + bx + c = 0).
For example, if the equation were as simple as x + 2 = 5, we would solve it by subtracting 2 from both sides to isolate x, finding that x = 3. However, without the specific equation, we cannot proceed with finding a solution for x.
The correct answer is: D. [tex]\(x = -3\)[/tex]
To find the solution for x in the given equation, let's combine like terms and solve for x:
[tex]\[16x - 4 + 5x = -67\][/tex]
Combine the x terms:
[tex]\[21x - 4 = -67\][/tex]
Add 4 to both sides:
[tex]\[21x = -63\][/tex]
Divide by 21 to solve for x:
[tex]\[x = -3\][/tex]
Complete Question:
Select the correct answer. What is the solution for x in the equation?
16x-4+5x=-67
A. x = 1/3
B. x = -1/3
C. x = 3
D. x = -3