answer. 35.7
explanation: bedmas is important in this question. subtract and divide in the brackets first. add the two numbers in the brackets second. multiply the 8.9 by the 3. then add the 9 to the 26.7
Answer:
35.7
Step-by-step explanation:
9 +[(4.2- 3.3)+(6.4/0.8)] x 3
(4.2- 3.3) = 0.9
(6.4/0.8) = 8
9 + (0.9 +80) × 3 = 9 + 8.9 × 3
= 9+26.7
= 35.7
what are like terms and how to do them.
Answer:
So like terms are terms that have the same VARIABLE...
Step-by-step explanation:
So 2n + 3n is 5n and you can do that because they are like terms. you only need like terms for adding and subtracting
multiplying: 2n * 3n^2 = 6n^3
hope this helps!
Find the unknown side length, x. Write your answer in simplest radical form.
Using the Pythagorean Theorem, you should get 45 [9 + 36]. Then, take the square root of 45 and simplify it to 3√5.
Sally is completely unprepared for a three-question multiple-choice pop quiz, so she randomly guesses the answer to each question. If each question has four choices, then what is the probability that she gets all three questions correct?
A) 0.02
B) 0.25
C) 0.42
D) 0.75
Answer:
Option A) 0.02
Step-by-step explanation:
The probability p that one of the questions is correct is
[tex]P = \frac{1}{4}[/tex]
The number of questions that will answer (number of trials) is [tex]n = 3[/tex].
We want to find out the probability that [tex]x = 3[/tex] three questions will be answered correctly.
To calculate this probability we use the binomial formula:
[tex]P(x) = \frac{n!}{x!(n-x)!} p^x(1-p)^{n-x}[/tex]
Where
[tex]x=3\\n=3\\p=0.25[/tex]
Then:
[tex]P(x=3) = \frac{3!}{3!(3-3)!} 0.25^3(1-0.25)^{3-3}[/tex]
[tex]P(3) =0.25^3[/tex]
[tex]P(3) = 0.0156[/tex]
P(3) = 0.0156≈0.02
The shoreline pictured below used to extend about 10 meters farther out into the ocean. A warming climate and rising sea levels have weakened the soil and brought more water up against the shoreline than in the past. Image courtesy of Benjamin Jones, USGS Which of the following statements about the shoreline pictured above is true?
A. Rain and wind have built up the shoreline through physical weathering.
B. The ocean has built up the shoreline through the process of deposition.
C. Rain and wind have broken down the shoreline through chemical weathering. D. The ocean has eroded the shoreline by carrying earth materials out to sea.
20 points!!!
Answer:
D. The ocean has eroded the shoreline by carrying earth materials out to sea
Step-by-step explanation: I don't actually know why, I just did it on Study Island
Answer:
The ocean has eroded the shoreline by carrying earth materials out to sea.
Step-by-step explanation:
I had to do study island. Apparently, this answer was correct.
Jason used the commutative property to write an expression that is equivalent to 3
4
+ 5.6b + 9.
3
4
+ 5.6b + 9 is equivalent to 9.0 + 56b + 3.4.
Answer: 0.22
Step-by-step explanation:
Answer:Jason is not correct as Jason changed the terms.
Step-by-step explanation:
Given the expression 34+5.6b+9.Jason used the commutative property to write the above expression changed to 9.0 + 56b + 3.4
We have to tell Jason work is correct or not.
Commutative property states that order does not matters but the terms remains same i.e a+b=b+aJason change the expression 34+5.6b+9 to 9.0 + 56b + 3.4here, Jason change the terms as well as order Jason is not correct as Jason changed the terms.
I NEED HELPPP!!! PLEASE
Answer:
Step-by-step explanation:
Surface area of a cylinder is:
A = 2πr² + 2πrh
Here, r = 2 cm and h = 6 cm:
A = 2 (3.14) (2 cm)² + 2 (3.14) (2 cm) (6 cm)
A = 100.48 cm²
HELP! 4/5n = 2/3. n = ?
A. 2/15
B. 5/6
C. 1 1/5
D. 1 7/15
ANSWER
[tex]n=\frac{5}{6} [/tex]
EXPLANATION
The given equation is
[tex] \frac{4}{5}n =\frac{2}{3} [/tex]
We multiply both sides of the equation by:
[tex]\frac{5}{4}[/tex]
[tex] \frac{5}{4}\times \frac{4}{5}n =\frac{2}{3}\times\frac{5}{4} [/tex]
Multiply and cancel out common factors
This implies that:
[tex]n=\frac{5}{6}[/tex]
Option B is correct.
Given s(x) = 3x - 6 and t(x) = 6 - 3x.
Find the simplified formula and domain for v(x)=(s/t)x and w(x)=(t/s)x
Answer with step-by-step explanation:
We are given the following two functions:
[tex]s(x) = 3x - 6[/tex]
[tex]t(x) = 6 - 3x[/tex]
We are to find the simplified formula and domain for [tex] v ( x ) = \frac { s ( x ) } { t ( x ) } [/tex] and [tex] w ( x ) = \frac { t ( x ) } { s ( x ) } [/tex].
[tex]\frac{3x-6}{6-3x}=\frac{3(x-2)}{3(2-x)}=\frac{x-2}{2-x}=\frac{x-2}{-(x-2))}=-1 [/tex]
So the domain for this function is (-∞, +∞) for v(x) = -1.
[tex]\frac{6-3x}{3x-6}=\frac{3(2-x)}{3(x-2)}=\frac{2-x}{x-2}=\frac{2-x}{-(-x+2)}=\frac{2-x}{-(2-x)}=-1[/tex]
The domain of this function is (-∞, +∞) for w(x)= -1
ANSWER
v(x)=-1
Domain: (-∞,2)U(2,+∞)
EXPLANATION
We have the given function
s(x) = 3x - 6 and t(x) = 6 - 3x.
We want to find the simplified formula and domain for
[tex]v(x) =( \frac{s}{t} )(x)[/tex]
[tex]v(x) = \frac{s(x)}{t(x)} [/tex]
[tex]v(x) = \frac{3x - 6}{6 - 3x} [/tex]
This function is defined if and only if
[tex]6 - 3x \ne0[/tex]
[tex]x \ne2[/tex]
Hence the domain is:
[tex]x \ne2[/tex]
We now simplify to obtain;
[tex]v(x) = \frac{ - (6 - 3x )}{6 - 3x} = - 1[/tex]
help again yall are life savers
question: which could be the base of a rectangle prism that has a volume of 60 cubic units?
A.#1 B.#2 C.#3 D.#4
Answer:
Base #2
Step-by-step explanation:
For this question, we need to find the base that's volume is a factor of 60.
Base #1 Volume = 7 * 3 or 21
21 is not a factor of 60, so it cannot be the base.
Base #2 Volume = 5 * 3 or 15
15 is a factor of 60, so it is the base.
Answer: I think it's base 4. Don't rely on me, 'cause I can't understand this right now.
Please help.
Solve 3(x+2) > x
Answer: Last option
{x| x>-3}
Step-by-step explanation:
We have the following inequality 3 (x + 2)> x
To solve the inequality, apply the following steps:
1) Apply distributive property
[tex]3 * x + 3 * 2> x\\\\3x + 6> x[/tex]
2) Subtract 6 on both sides of the inequality
[tex]3x +6 -6> x-6\\\\3x> x-6[/tex]
3) Subtract x on both sides of the inequality
[tex]3x-x> x-x-6\\\\2x> -6[/tex]
3) Divide by 2 both sides of the inequality
[tex]x> -3[/tex]
The solution is all numbers greater than -3
ANSWER
{x|x>- 3}
EXPLANATION
The given inequality is;
[tex]3(x+2) \: > \: x[/tex]
Expand the parenthesis to obtain,
[tex]3x+6>x[/tex]
Group like terms
[tex]3x-x \: > \: -6[/tex]
[tex]2x>-6[/tex]
Divide both sides by 2
[tex]x \: > \: - 3[/tex]
The correct choice is D.
2x + x + x + 2y × 3y × y
Answer:
[tex]\large\boxed{4x+6y^3}[/tex]
Step-by-step explanation:
[tex]2x+x+x+2y\times3y\times y\\\\=(2x+x+x)+(2y\times3y\times y)\\\\=4x+(2\times3)(y\times y\times y)\\\\=4x+6y^3[/tex]
a snow globe has a volume of 3349 cm3 what is the radius
Answer: Apply the formula for the volume of a sphere.
Step-by-step explanation:
The volume of a sphere is
4
π
r
3
3
We just need to insert
r
=
2
c
m
into this to get the volume.
4
π
2
3
3
=
32
3
π
The exact volume is
32
3
π
c
m
3
The approximate volume is
33.5103217
If f(x)=x+6 and g(x)=x^4 find G(F(x))
You plug in f(x) into where x is within g(x) so you get G(f(x))=(X+6)^4
Answer:
[tex]\large\boxed{g(f(x))=(x+6)^4}[/tex]
Step-by-step explanation:
[tex]f(x)=x+6\\\\g(x)=x^4\\\\g(f(x))\to\text{put}\ x+6\ \text{to the equation of}\ g(x)\\\\g(f(x))=(x+6)^4[/tex]
Jillian sold 12% of the candy bars the class sold to raise money for a new water cooler in the school. If she sold 36 candy bars, what was the total number before taxes?
Answer:
So we can write an equation to solve this:
12/100 = 36/x
And then we are going to solve for x
x(12/100) = 36
36 x (100/12) = 300
The total number of candy bars was 300
Jillian sold 12% of the class's candy bars, which amounts to 36 bars. To find the total, calculate what 1% would be by dividing 36 by 12, and then multiply by 100 to find that the class sold 300 candy bars in total.
The student is asking about a practical application of percentages in a real-world context, which is a common subject in middle school mathematics. To find the total number of candy bars sold by the class, we need to use the information that Jillian sold 12% of the total and that this amounted to 36 candy bars. The calculation is straightforward: if 12% equals 36, we want to find 100% (the total).
To do this, we set up a simple proportion: if 12% is 36, then 1% would be 36 divided by 12, which is 3 candy bars. Since we're looking for the total, we multiply the number of candy bars representing 1% (which is 3) by 100 to find that the class sold a total of 300 candy bars before taxes.
Step-by-Step Calculation:
Find 1% of the total by dividing 36 candy bars by 12%.
1% of the total = 36 candy bars / 12 = 3 candy bars.
Multiply the value of 1% by 100 to find the total amount.
Total candy bars = 3 candy bars × 100 = 300 candy bars.
Use the grouping method to factor this polynomial completely 4x^3+8x^2+3x+6
Answer:
Final answer is [tex](4x^2+3)(x+2)[/tex].
Step-by-step explanation:
Given expression is [tex]4x^3+8x^2+3x+6[/tex].
Now we need to factor that by the method of grouping.
So make two groups having first two terms and then last two term.
Factor each group then factor once more.
[tex]=4x^2(x+2)+3(x+2)[/tex]
[tex]=(4x^2+3)(x+2)[/tex]
It can't be factored anymore so the final answer is [tex](4x^2+3)(x+2)[/tex].
the factored form of 4x^3+8x^2+3x+6 using the grouping method is (x+2)(4x^2+3).
To factor the polynomial 4x^3+8x^2+3x+6 using the grouping method, we can start by grouping terms in pairs and factoring out common factors in each pair. Here is a step-by-step explanation:
First, write down the given polynomial: 4x^3+8x^2+3x+6.Group the terms: (4x^3+8x^2) + (3x+6).Factor out the common factors from each group: 4x^2(x+2) + 3(x+2).Now, notice that (x+2) is a common factor in both terms, so factor it out: (x+2)(4x^2+3).Therefore, the factored form of 4x^3+8x^2+3x+6 using the grouping method is (x+2)(4x^2+3).
Which ratio would you use to convert 3.2 feet to inches?
To convert 3.2 feet to inches, multiply by the conversion factor of 12 inches per foot. The calculation 3.2 feet x 12 inches/1 foot results in 38.4 inches.
To convert 3.2 feet to inches, we use the following ratio: 1 foot = 12 inches. This is a standard conversion factor between feet and inches in the customary system of measurements.
First, set up the conversion like this:
Multiply the number of feet by the unit equivalence.
3.2 feet x 12 inches/1 foot = x inches.
Perform the multiplication to solve for x.
3.2 x 12 = 38.4 inches.
Therefore, 3.2 feet is equivalent to 38.4 inches. Remember, when converting from a larger unit to a smaller unit like feet to inches, you need to multiply by the conversion factor.
explain how the perimeter of a polygon is calculated.
Multiply the side length by the number of sides to get the perimeter. The formula for finding the perimeter of a regular polygon is just the number of sides x the length of any side. Once you've multiplied those 2 numbers together, you've found the perimeter of the polygon
Final answer:
The perimeter of a polygon is calculated by adding together the lengths of all its sides. For regular polygons with equal side lengths, the perimeter is the side length multiplied by the number of sides. For irregular polygons, all unique side lengths must be measured and summed.
Explanation:
The perimeter of a polygon is the total length around the shape. It is calculated by summing the lengths of all its sides. For a regular polygon with all sides of equal length, like a square, if one side length is a, then the perimeter is simply 4a because there are four sides. In the case of irregular polygons, each individual side length must be measured and added together to find the total perimeter.
For instance, consider a rectangle with a length of l and a width of w; the perimeter would be 2l + 2w, because each opposite pair of sides are equal. The units used for the lengths will be the same units used for the perimeter, such as meters. Nonetheless, the calculation can become more complex with polygons of more sides. Each side must be accounted for precisely, and units must remain consistent.
Find the average rate of change for f(x)=x^2-3x-10 from x=4 to x=6
Answer:
7
Step-by-step explanation:
The average rate of change of f(x) in the closed interval [ a, b ] is
[tex]\frac{f(b)-f(a)}{b-a}[/tex]
here [ a, b ] = [4, 6 ]
f(b) = f(6) = 6² - 3(6) - 10 = 36 - 18 - 10 = 8
f(a) = f(4) = 4² - 3(4) - 10 = 16 - 12 - 10 = - 6
Hence
average rate of change = [tex]\frac{8-(-6)}{6-4}[/tex] = [tex]\frac{14}{2}[/tex] = 7
If a dozen eggs cost $1.68, how much does one egg cost? *
Answer:
$0.14
Step-by-step explanation:
Average it out. 1.68÷12=0.14
Answer:
$0.14
Step-by-step explanation:
1.68/12= 0.14
Plz HURRY!!!!!
(2x - 3) and (x + 5) are the factors of a quadratic equation. Write the equation.
A) y = 2x2 + 2x - 15
B) y = 2x2 + 7x - 15
C) y = 2x2 + 7x +15
D) y = x2 + 7x - 15
Answer:
The answer would be B, 2x2+7x-15.
Step-by-step explanation:
Use the distributive property!!
(2x-3)(x+5)
distribute the 2x to the x and 5.
You get 2x2+10x
distribute the -3 to the x and 5.
You get -3x-15
combine like terms:
2x2+10x-3x-15
You get the answer 2x2+7x-15
hope this helps :)
A real estate agent sells two sites for Rs. 18000 each. On one he gains 25% and on the other he loses 25 %. What is his loss or gain percent?
In this situation of selling two properties for the same price but with different gain and loss percentages, the real estate agent does not break even but incurs an overall loss of 6.25%.
Explanation:This is essentially a problem in profit and loss calculations in the domain of Mathematics. Since the selling price of both the sites is the same, the loss and gain percent will cancel out each other, resulting in no overall gain or loss. Here's why:
The real estate agent gains 25% on the first site. Hence, the cost price will be Rs. 18000 x 100/125 = Rs. 14400.The real estate agent loses 25% on the second site. Here, the cost price will be Rs. 18000 x 100/75 = Rs. 24000.The total cost price is Rs. 14400 + Rs. 24000 = Rs. 38400 and the total selling price is Rs. 18000 + Rs. 18000 = Rs. 36000. So, the real estate agent has incurred an overall loss. To find the percentage of loss, use the formula face: [(Loss) / (Cost Price)] * 100 = [(Rs. 38400 - Rs. 36000) / Rs. 38400] * 100 = 6.25% loss.
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Anwser These Questions they are hard
If you would like to show the questions to us, would be fine!
There is a 30% chance of snow tomorrow. What is the likelihood of the event given it’s probability
The likelihood of an event stating the 30% chance of snow means that, in 100 identical weather circumstances, we would predict it to snow during 30. This does not deliver any information on the quantity of snow.
Explanation:The likelihood of an event given its probability represents the chance of that event taking place. When we say that there is a 30% chance of snow tomorrow, this means that out of every 100 similar weather scenarios, we would expect it to snow in 30 of them. Hence, the likelihood of it snowing tomorrow is 30%. It's important to understand that probability is a way to quantify the uncertainty associated with events predicted to occur, based on the known conditions.
Regarding the example, if we know that 'If it snows more than three inches, the schools are mandated to close.' and we see that 'The schools closed.' we can infer that 'It snowed more than three inches.' This however has no direct relation to the probability of snow tomorrow.
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Jovie is maintaining a campfire. She has kept the fire steadily burning for 10 hours with 15 logs. She wants to know how many hours (h), she could have kept the fire going with 9 logs. She assumes all logs are the same.
How many hours can Jovie keep the fire going with 9 logs?
Answer:
6 hours
Explaination
10/15=.66666667
.66666667*9=6 hours
need help ASAP
which graph shows the graph of a circle with the equation x^2 + (y + 3)^2 equals 9
Answer:
upper left
Step-by-step explanation:
The generic equation for a circle centered at (h, k) with radius r is ...
(x -h)^2 +(y -k)^2 = r^2
Comparing that equation to the one you have, you can see that ...
-h = 0
-k = +3
r^2 = 9
Then you have (h, k) = (0, -3) and a radius of 3.
The circle has its center on the y-axis 3 units below the x-axis and just touches the x-axis. This is a description of the graph at upper left.
What is the solution of 3x+8/x-4 less than or equal to 0
Answer Choices
x less than or equal to -8/3 or x greater than 4
x less than -8/3 or x greater than 4
-8/3 less than or equal to x less than 4
-8/3 less than x less than 4
In solving the inequality, 3x+8/x-4 <= 0, we identify critical points and assign intervals based on them. The solution offers two possible scenarios: x is less than or equal to -8/3 or x is greater than 4.
Explanation:The inequality 3x+8/x-4 =< 0 can be divided into two possible scenarios by clarifying the critical points. To solve this inequality, you first need to identify where the expression equals zero, that's where 3x+8=0 and x=4. Solving 3x+8=0 yields x=-8/3, which is the first
possible solution. Another critical point is where the denominator is zero, which is x=4.
Next, we need to check the signs of these intervals: (-inf, -8/3), (-8/3, 4) and (4, inf). Testing these intervals on the given inequality gives us the
solution that x is less than or equal to -8/3 or x is greater than 4 . Remember, x cannot be equal to 4 because it makes denominator zero in the origin expression which is undefined in mathematics.
Therefore, the correct solution is 'x less than or equal to -8/3 or x greater than 4'.
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Which of the following are true about x? Check all that apply.
Answer:
x∈B
x∈A∪B
x∈A∪C
x∈A∩B
Step-by-step explanation:
As can be seen from the Venn diagram, x is the shaded portion between the intersection of 3 circles A, B and C.
hence x belong to b, and x belong to A union B, x belong to A union C and x belong to A intersection B !
Answer:
The following are correct:
B
C
D
E
F
Step-by-step explanation
Determine whether the following regular polygon tessellates the plane. Explain.-square
Answer:
option A) yes, measure of interior angle is 90
Step-by-step explanation:
Tessellation:
the tiling of an flat surface or plane by one or more geometric surfaces is tessellation. No overlapping or gap or un-evenness is left during tessellation, all the shapes fit perfect to the plane or flat surface. There are three geometric shapes that can be used for tessellation.
These shapes are:
Square
Triangle
Hexagon
As in given problem the polygon given is square
So YES the tessellation of plan is possible and the as the interior angle of square is 90 degrees so
option A is correct complete answer i.e. yes, measure of interior angle is 90 !
What is 2852÷12? Please help!!
It is D.) 237 and 2/3... glad I was able to help!
2852/12 is ———————> (A) 237
Which triangle has a bigger area:
1. A triangle with sides measuring 300, 400, and 500.
2. A triangle with sides measuring 300, 400, and 700.
Hello there!
Answer:
Triangle 2
Step-by-step explanation:
To determine which triangle has the bigger area, we would need to figure our the area of the triangles.
To solve for the area of the triangles, we would use the formula length × width × height or l × w × h
They gave us the information to the triangles in the question, so we would just solve.
Triangle 1: [tex]300 *400*500= 60,000,000[/tex]
Triangle 2: [tex]300*400*700=84,000,000[/tex]
When you finish solving, you would see that triangle 2 has the bigger area.
Triangle 2 would be the CORRECT answer because it has a bigger area than Triangle 1.
Triangle 2. Area is length x width x height